SECTION II LANDING & DRILL STRING - zyonpetroleum.com

Landing & Drill String

CATALOG

www.7oceanshabitat.com

With international advanced technology, sophisticated equipment and excellent management, Enerserva

manufacturing facility of landing string and drill string provides high quality drilling tools and satisfactory

services, including a comprehensive range of Landing string, Drill Pipe, Drill Collar, Heavy Weight Drill Pipe,

Kelly as well as sour service and non-magnetic drilling tools. Moreover, we also have researched and

developed DS, DSHT UT series double shoulder connections with self-owned intellectual property rights and

have been taking the leading position in producing PAC, AOH, H90 and other compatible premium threads.

The products are widely accepted and operated in North America, Central and South America, Middle East,

South East Asia, Russia and Central Asia, etc.

Our facility has complete quality management system with ISO 9001, NS-1, API and HSE certified. Being

equipped with a first-class material testing lab, we ensure each piece of our products meet or exceed the

requirements for durability and performance.


Production Lines

Upsetter for Pipe Body

Japan Made Full Automatic Mechanical Upsetter 2-3/8” to 7”

One heating and two pressing

Uniform Transitional Zone, Fine grain size, and smooth inside & outside surface, MIU Long and smooth

Pipe Body Heat Treatment Furnace

• Itoh Industry Co., Japan

• 2-3/8” through 7”

• Quenching /Tempering Furnace : 5Ton/hr,

• Quenching Maximum Temperature: 950 degree;

Tempering: 750 degree

(Controlled within -/+ 5degree)

• Internal Quenching System;

Water Capacity max: 285ton/hr

• Impact Value: Minimum 100J


Forging and Heat Treatment for Tool Joint

Fine Die Forging Machine Continuance Walking Beam Heat Treatment

Supermatic temperature control and QT time. High Impact Value:

Horizontal (90J) and Longitudinal (100J)

High anti-fatigue ability

Stable performance of each batch. No decarburation & carburizing, and little deformation.

Properties Comparison

Threading for Tool Joint.

MORI SEIKI - Japan made Supermatic High processing precision Lathe

The unique Lathe with DCG (Direct Current Generator) in the world minimize the vibration


Uniform thread performance data

Friction Welding, DP / HWDP Assembly

Izumi Industry Co., Japan made Continuous Pusher Friction Welder

2-3/8” through 7-5/8” / Automatic data recorded

Coaxial shaft of welding: Maximum 1.0mm

Heat Treatment on Welding

Neturen Japan made

Automatic control on temperature and time of heating, soaking and cooling.

Heat affect area well controlled with limited coil width. Even

properties and stable metal structure.

Weld Zone Picture


Heat Treatment for Bars

Japan made Gas Heating & Walking Beam Continuous HT Furnace. Size: 2-3/8” through

11” In China, only our facility is equipped with such furnace.

Heat overall length by natural gas, automatically temperature controlled ±5 Deg., soaking time controlled.

Various properties after HT far exceed Mid-Freq. facilities.

Boring for Bars

Lathe length: 30 meters. Sizes available: 2 3/8” to 14”

Boring starting from both ends, central meet-up step controlled within 1.6 mm.

Bore after heat treatment process avoids inner surface cracks

Concentricity of the full-length bore and straightness of the bar is well controlled to extend DC’s lifetime.

Profile and Threading

Lathe length: 30 meters. Sizes available: 2 3/8” to 14”

Spiral, Slip and Elevator, Stress relief features

Kellies, cold rolling on thread roots, cold working on slip & elevator recess.

High Lights:


Heat Treatment

Gas Heating & Walking Beam Continuous HT Furnace--

High hardenability, Stable performance, Material uniformity.

Boring

Bore from two ends--

Good axiality, no tolerance on thread

Surface of the thread

Hot phosphorization—

Even and thickness are well controlled, Solder ability, Anti-Galling

Quality Control

Thread Gauges (Stored in warehouse with Constant Temperature and Humidity)


XHB-3000 Digital Brinell Hardness Tester

(Range of measuring: 8-650HBW)

LC-200R Full-Automatic Rockwell Hardness Tester

Accuracy up to 0.01HRC.

ZBC2452 Computerized Automatic Metal Hammer Impact

Value Tester

The lowest test temperature: -60℃

600DX Hydraulic Pressure Servo Tester

Dual test space designed for tensile and bending test.

Carl Zeiss Axis Image.A1 Microscope (Germany)

Times of Enlargement: 25-1500X


Shimadzu Direct-Reading Spectrometer PDA-

5500S Analyze the chemical composition efficiently

and accurately.

CONTENTS - SECTION II I. LANDING STRING ................................................................ 3.11-3.12

II. DRILL PIPE .......................................................................... 3.13-3.24

2.1 STANDARD DRILL PIPE

...................................................................................................................................................... 3.13-3.18

2.2 SOUR SERVICE DRILL PIPE

..................................................................................................................................................... 3.19-

2.3 DIGITAL DRILL PIPE

...................................................................................................................................................................

3.20

2.4 EFFICIENT CUTTING BED CLEAN DRILL PIPE

........................................................................................................................ 3.21

2.5 ALUMINIUM ALLOY DRILL PIPE

......................................................................................................................................... 3.21-3.22

2.6 TRENCHLESS / HDD DRILL PIPE

.............................................................................................................................................. 3.22

III. HEAVY WEIGHT DRILL PIPE .................................................. 3.25


IV. DRILL COLLAR ................................................................... 3.26-3.29

4.1 DRILL COLLAR (SLICK & SPIRAL)

..................................................................................................................................... 3.26-3.28

4.2 NON-MAGNETIC DRILL COLLAR

............................................................................................................................................... 3.29

V. REAMER ....................................................................................

3.30

VI. STABILIZER .............................................................................

3.31-3.42

6.1 INTEGRAL BLADE STABILIZER

......................................................................................................................................... 3.31-3.36

6.2 REPLACEABLE SLEVE STABILIZER

......................................................................................................................................... 3.37

6.3 NON-ROTATING STABILIZER

.................................................................................................................................................... 3.38

6.4 FLOAT VALVE STABILIZER

........................................................................................................................................................ 3.39

6.5 SPHERICAL STABILIZER

............................................................................................................................................................ 3.40


VII. KELLY (SQUARE AND HEXAGONAL) ....................................

3.43

VIII. HOLE OPENER ........................................................................

3.44

IX. DRILL STRING ACCESSORIES ..............................................

3.45-

9.1 LIFTING SUB

........................................................................................................................................................................

........ 3.45

9.2 CROSSOVER

.......................................................................................................................................................................

3.46-3.47

9.3 LIFTING PLUG & CAP

.................................................................................................................................................................

3.47

9.4 KELLY / TOP DRIVE SAVER SUBS

............................................................................................................................................ 3.48

9.5 ORIENTED BENT SUB

................................................................................................................................................................ 3.48

9.6 DRILL BIT SUB

........................................................................................................................................................................

.... 3.49

9.7 WEAR

SUB.................................................................................................................................................................

.................. 3.49

9.8 FLOAT VALVE SUB

.....................................................................................................................................................................

3.50


I. LANDING STRING A Landing String is a heavy duty thick wall drill pipe, usually 0.500" wall or greater. It is used in many instances

where regular drill pipe does not have sufficient tensile strength. A landing string can be used not only for

drilling, but also to land heavy casing strings in the well or heavy equipment on the sea bed. A slip crushing

resistant landing string is designed to resist to a phenomenon called slip crushing when gripped by the slips

on the rotary table. Manufactured from the same grade of steel, the tensile rating directly correlates to the wall

thickness.

Landing String sizes include 5", 5-1/2", 5-7/8, 6-5/8", & 6-5/8" Slip Proof. Grades S-135, Z-140, & V-150.

Our landing Strings offer a variety of drill pipe-based designs for non-slip crushing resistant landing strings:

typically those landing strings exhibit large OD (up to 6-5/8"), proprietary high strength steel grades, and heavy

wall sections (up to 0.938" wall).


Special Features:

• Higher running speed. • Higher tensile and hoisting capacity. • Increased elevator loading capacity. • Better slip

crushing resistance.

OD

Connection

Grade

Range

Wall

Nominal

Weight

TJ OD

TJ ID

Tube ID

TJ Yield

Min MUT

Max

MUT

Prem Tube

Tensile (in) (in) (lb/ft) (in) (in) (ft-lbs) (ft-lbs) (ft-lbs) (lbs)

5 NC50 S-135 II 0.5 25.6 6-5/8 2-3/4 4 63,400 31,700 38,000 746,442

5 NC50 V-150 II 0.5 25.6 6-5/8 2-3/4 4 63,400 31,700 38,000 829,380

5-1/2 HT55 S-135 II 0.75 38.05 7-1/8 3-1/4 4 107,100 53,500 64,200 1,170,556

5-1/2 5-1/2" FH S-135 II 0.75 38.05 7-1/8 3-1/4 4 70,700 35,400 42,400 1,170,556

5-1/2 5-1/2" FH S-135 II 0.75 38.05 7-1/4 3-1/4 4 78,700 39,400 47,200 1,170,556

6-5/8 6-5/8" FH S-135 II 0.625 40.05 8-1/2 4-1/4 5.375 108,353 54,200 65,000 1,245,837

6-5/8 6-5/8" FH S-135 III 0.625 40.05 8-1/2 4-1/4 5.375 108,353 54,200 65,000 1,245,837

6-5/8 6-5/8" FH V-150 III 0.625 40.05 8-1/2 4-1/4 5.375 108,353 54,200 65,000 1,384,263

6-5/8 6-5/8" FH S-135 II 0.750 47.06 8-1/2 4-1/4 5.125 108,353 54,200 65,000 1,456,834

6-5/8 6-5/8" FH S-135 II 0.813 50.46 8-1/2 3-1/2 4.999 130,200 65,100 71,000 1,558,354

6-5/8 6-5/8" FH V-150 II 0.813 50.46 8-1/2 3-1/2 4.999 130,200 65,100 71,000 1,731,504

6-5/8 DS65 V-150 II 0.813 50.46 8-1/2 4 4.999 146,000 82,600 87,600 1,731,504

6-5/8 6-5/8" FH V-150 III 0.938 56.95 8-11/16 3-1/2 4.749 138,500 69,500 78,000 1,944,683

6-5/8

6-5/8" FH

V-150

II 0.938-

1.703

56.95

8-11/16

3-1/2

4.749

138,500

69,500

78,000

1,944,683

6-5/8

6-5/8" FH

V-150

III 1.093-

1.719

64.58

8-11/16

3-1/2

4.44

155,741

69,500

78,000

2,189,804

II. DRILL PIPE Drill pipe is the top component of any drill string that makes up the majority of a drill string's length. Its functions

are to transmit torque and power from the top drive or rotary table to the bit. A drill pipe is described by its size,

weight, grade, connection, upset, range and class.


We manufacture and supply a full range of friction welded drill pipes in nominal sizes from 2-3/8" to 6-5/8" and

a wide range of wall thickness. On our drill pipes, we adopts a strict quality control policy to ensure total quality

control from initial material qualification, in-process inspection to final out-going quality inspection. We are

confident that our each joint of drill pipes meets your needs for

reliability, durability and performance during your drilling

operations.

2.1 Standard Drill Pipe

Tool Joint Parameters

TJ

Designation

Conn.

Nominal

Weight

Grade

Pin / Box

OD

Pin ID

Bevel Dia., Pin /

Box Shoulder

Total Length,

Tool Joint Pin

Pin Tong

Space

Box Tong

Space

Combined

Length, Pin/Box

Box Dia. At

Elevator Upset

Pin Dia. At

Elevator Upset

D d DF LP LPB LB L DPE DTE

lb/ft in in in in in in in in in

NC26

2-3/8IF

2-3/8EU

6.65

E 3-3/8 1-3/4 3-17/64 10 7 8 15 2-9/16 2-9/16

X 3-3/8 1-3/4 3-17/64 10 7 8 15 2-9/16 2-9/16

G 3-3/8 1-3/4 3-17/64 10 7 8 15 2-9/16 2-9/16

NC31

2-7/8IF

2-7/8EU

10.4

E 4-1/8 2-1/8 3-61/64 10-1/2 7 9 16 3-3/16 3-3/16

X 4-1/8 2 3-61/64 10-1/2 7 9 16 3-3/16 3-3/1

G 4-1/8 2 3-61/64 10-1/2 7 9 16 3-3/16 3-3/16

S 4-3/8 1-5/8 3-61/64 10-1/2 7 9 16 3-3/16 3-3/16

NC38

3-1/2IF

3-1/2EU

9.5 E 4-3/4 2-11/16

4-37/64 11-1/2 8 10-1/2 18-1/2 3-7/8 3-7/8

13.3

E 4-3/4 2-11/16

4-37/64 12 8 10-1/2 18-1/2 3-7/8 3-7/8

X 5 2-9/16 4-37/64 12 8 10-1/2 18-1/2 3-7/8 3-7/8

G 5 2-7/16 4-37/64 12 8 10-1/2 18-1/2 3-7/8 3-7/8

S 5 2-1/8 4-37/64 12 8 10-1/2 18-1/2 3-7/8 3-7/8

15.5

E 5 2-9/16 4-37/64 12 8 10-1/2 18-1/2 3-7/8 3-7/8

X 5 2-7/16 4-37/64 12 8 10-1/2 18-1/2 3-7/8 3-7/8

G 5 2-1/8 4-37/64 12 8 10-1/2 18-1/2 3-7/8 3-7/8


TJ

Designation

Conn.

Nominal

Weight

Grade

Pin / Box

OD

Pin ID

Bevel Dia., Pin /

Box Shoulder

Total Length,

Tool Joint Pin

Pin Tong

Space

Box Tong

Space

Combined

Length, Pin/Box

Box Dia. At

Elevator Upset

Pin Dia. At

Elevator Upset



NC40

4FH

3-1/2EU

15.5 S 5-1/2 2-1/4 5-1/64 11-1/2 7 10 17 3-7/8 3-7/8

4IU

14

E 5-1/4 2-13/16

5-1/64 11-1/2 7 10 17 4-3/16 4-3/16

X 5-1/4 2-11/16

5-1/64 11-1/2 7 10 17 4-3/16 4-3/16

G 5-1/2 2-7/16 5-1/64 11-1/2 7 10 17 4-3/16 4-3/16

S 5-1/2 2 5-1/64 11-1/2 7 10 17 4-3/16 4-3/16

NC46

4IF

4EU

14

E 6 3-1/4 5-23/32 11-1/2 7 10 17 4-1/2 4-3/16

X 6 3-1/4 5-23/32 11-1/2 7 10 17 4-1/2 4-3/16

G 6 3-1/4 5-23/32 11-1/2 7 10 17 4-1/2 4-3/16

S 6 3 5-23/32 11-1/2 7 10 17 4-1/2 4-3/16

4-1/2IU 13.75 E 6 3-3/8 5-23/32 11-1/2 7 10 17 4-11/16 4-11/16

4-1/2EU

16.6

E 6-1/4 3-1/4 5-23/32 11-1/2 7 10 17 4-11/16 4-11/16

X 6-1/4 3 5-23/32 11-1/2 7 10 17 4-11/16 4-11/16

G 6-1/4 3 5-23/32 11-1/2 7 10 17 4-11/16 4-11/16

S 6-1/4 2-3/4 5-23/32 11-1/2 7 10 17 4-11/16 4-11/16

4-1/2IE

U

20

E 6-1/4 3 5-23/32 11-1/2 7 10 17 4-11/16 4-11/16

X 6-1/4 2-3/4 5-23/32 11-1/2 7 10 17 4-11/16 4-11/16

G 6-1/4 2-1/2 5-23/32 11-1/2 7 10 17 4-11/16 4-11/16

S 6-1/4 2-1/4 5-23/32 11-1/2 7 10 17 4-11/16 4-11/16

NC50

4-1/2IF

4-1/2EU

13.75

16.60

E 6-5/8 3-3/4 6-1/16 11-1/2 7 10 17 5 5

E 6-5/8 3-3/4 6-1/16 11-1/2 7 10 17 5 5

X 6-5/8 3-3/4 6-1/16 11-1/2 7 10 17 5 5

G 6-5/8 3-3/4 6-1/16 11-1/2 7 10 17 5 5

S 6-5/8 3-1/2 6-1/16 11-1/2 7 10 17 5 5

20

E 6-5/8 3-5/8 6-1/16 11-1/2 7 10 17 5 5

X 6-5/8 3-1/2 6-1/16 11-1/2 7 10 17 5 5

G 6-5/8 3-1/2 6-1/16 11-1/2 7 10 17 5 5

S 6-5/8 3 6-1/16 11-1/2 7 10 17 5 5

19.5

E 6-5/8 3-3/4 6-1/16 11-1/2 7 10 17 5-1/8 5-1/8

X 6-5/8 3-1/2 6-1/16 11-1/2 7 10 17 5-1/8 5-1/8

G 6-5/8 3-1/4 6-1/16 11-1/2 7 10 17 5-1/8 5-1/8


NC50

5-1/2IF

5IEU

S 6-5/8 2-3/4 6-1/16 11-1/2 7 10 17 5-1/8 5-1/8

25.6

E 6-5/8 3-1/2 6-1/16 11-1/2 7 10 17 5-1/8 5-1/8

X 6-5/8 3 6-1/16 11-1/2 7 10 17 5-1/8 5-1/8

G 6-5/8 2-3/4 6-1/16 11-1/2 7 10 17 5-1/8 5-1/8

TJ

Designation

Conn.

Nominal

Weight

Grade

Pin / Box

OD

Pin ID

Bevel Dia., Pin /

Box Shoulder

Total Length,

Tool Joint Pin

Pin Tong

Space

Box Tong

Space

Combined

Length, Pin/Box

Box Dia. At

Elevator Upset

Pin Dia. At

Elevator Upset



5-1/2FH

5IEU

19.5

E 7 3-3/4 6-23/32 13 8 10 18 5-1/8 5-1/8

X 7 3-3/4 6-23/32 13 8 10 18 5-1/8 5-1/8

G 7 3-3/4 6-23/32 13 8 10 18 5-1/8 5-1/8

S 7-1/4 3-1/2 6-23/32 13 8 10 18 5-1/8 5-1/8

25.6

E 7 3-1/2 6-23/32 13 8 10 18 5-1/8 5-1/8

X 7 3-1/2 6-23/32 13 8 10 18 5-1/8 5-1/8

G 7-1/4 3-1/2 6-23/32 13 8 10 18 5-1/8 5-1/8

5-1/2FH 5IEU 25.6 S 7-1/4 3-1/4 6-23/32 13 8 10 18 5-1/8 5-1/8

21.9

E 7 4 6-23/32 13 8 10 18 5-11/16 5-11/16

X 7 3-3/4 6-23/32 13 8 10 18 5-11/16 5-11/16

G 7-1/4 3-1/2 6-23/32 13 8 10 18 5-11/16 5-11/16

S 7-1/4 3 6-23/32 13 8 10 18 5-11/16 5-11/16

24.7

E 7 4 6-23/32 13 8 10 18 5-11/16 5-11/16

X 7 3-1/2 6-23/32 13 8 10 18 5-11/16 5-11/16

G 7-1/4 3-1/2 6-23/32 13 8 10 18 5-11/16 5-11/16

S 7-1/2 3 6-23/32 13 8 10 18 5-11/16 5-11/16

6-5/8FH

6-5/8IEU

25.2

E 8 5 7-45/64 13 8 10 18 5-11/16 5-11/16

X 8 5 7-45/64 13 8 11 19 6-15/16 6-15/16

G 8-1/4 4-3/4 7-45/64 13 8 11 19 6-15/16 6-15/16

S 8-1/4 4-1/4 7-45/64 13 8 11 19 6-15/16 6-15/16

25.2

E 8 5 7-45/64 13 8 11 19 6-15/16 6-15/16

X 8-1/4 4-3/4 7-45/64 13 8 11 19 6-15/16 6-15/16

G 8-1/4 4-3/4 7-45/64 13 8 11 19 6-15/16 6-15/16


S 8-1/2 4-1/4 7-45/64 13 8 11 19 6-15/16 6-15/16

Drill Pipe Main Technical Parameters

Drill Pipe SPECIFICATIONS

Designationsa

Pipe

body

OD

Pipe wall thickness

Drill Pipe

Weld

Neck

Tool Joint RSC

bevel dia.

Approx

OD

Pin ID

Pin OD Box OD

massc

Length Length

Label1 Label2 Grade Upset RSC Ddp t Dteb D dp Lpb Lb Df Wdp

Type typed mm mm mm mm mm mm mm mm kg/m

-12.5%

max. ±0.8

+0.4 ±6.4

±6.4

±0.4

Calculated -0.8

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Internal-External Upset (IEU) 4-1/2 16.6 E IEU NC46 114.3 8.56 119.1 158.8 82.6 177.8 254 145.26 27.36

4-1/2 16.6 X G IEU NC46 114.3 8.56 119.1 158.8 76.2 177.8 254 145.26 27.73

4-1/2 16.6 S IEU NC46 114.3 8.56 119.1 158.8 69.9 177.8 254 145.26 28.04

4-1/2 20 E IEU NC46 114.3 10.92 119.1 158.8 76.2 177.8 254 145.26 32.94

4-1/2 20 X IEU NC46 114.3 10.92 119.1 158.8 69.9 177.8 254 145.26 33.69

4-1/2 20 G IEU NC46 114.3 10.92 119.1 158.8 63.5 177.8 254 145.2 33.97

4-1/2 20 S IEU NC46 114.3 10.92 119.1 158.8 57.2 177.8 254 145.26 34.23

5 19.5 E IEU NC50 127 9.19 130.2 168.3 95.3 177.8 254 153.99 31.79

5 19.5 X IEU NC50 127 9.19 130.2 168.3 88.9 177.8 254 153.99 32.58

5 19.5 G IEU NC50 127 9.19 130.2 168.3 82.6 177.8 254 153.99 32.95

5 19.5 S IEU NC50 127 9.19 130.2 168.3 69.9 177.8 254 153.99 33.6

5 19.5 E IEU 5-1/2FH 127 9.19 130.2 177.8 95.3 203.2 254 170.66 33.22

5 19.5 X G IEU 5-1/2FH 127 9.19 130.2 177.8 95.3 203.2 254 170.66 33.61

5 19.5 S IEU 5-1/2FH 127 9.19 130.2 184.2 88.9 203.2 254 170.66 34.89

5 25.6 E IEU NC50 127 12.7 130.2 168.3 88.9 177.8 254 153.99 40.73

5 25.6 X IEU NC50 127 12.7 130.2 168.3 76.2 177.8 254 153.99 41.8

5 25.6 G IEU NC50 127 12.7 130.2 168.3 69.9 177.8 254 153.99 42.11

5 25.6 E IEU 5-1/2FH 127 12.7 130.2 177.8 88.9 203.2 254 170.66 42.14

5 25.6 X IEU 5-1/2FH 127 12.7 130.2 177.8 88.9 203.2 254 170.66 42.51

5 25.6 G IEU 5-1/2FH 127 12.7 130.2 184.2 88.9 203.2 254 170.66 43.35

5 25.6 S IEU 5-1/2FH 127 12.7 130.2 184.2 82.6 203.2 254 170.66 43.75

5-1/2 21.9 E IEU 5-1/2FH 139.7 9.17 144.5 177.8 101.6 203.2 254 170.66 35.43

5-1/2 21.9 X IEU 5-1/2FH 139.7 9.17 144.5 177.8 95.3 203.2 254 170.66 36.36

5-1/2 21.9 G IEU 5-1/2FH 139.7 9.17 144.5 184.2 88.9 203.2 254 170.66 37.61

5-1/2 21.9 S IEU 5-1/2FH 139.7 9.17 144.5 190.5 76.2 203.2 254 180.18 39.27

5-1/2 24.7 E IEU 5-1/2FH 139.7 10.54 144.5 177.8 101.6 203.2 254 170.66 39.19


5-1/2 24.7 X G IEU 5-1/2FH 139.7 10.54 144.5 184.2 88.9 203.2 254 170.66 41.32

5-1/2 24.7 S IEU 5-1/2FH 139.7 10.54 144.5 190.5 76.2 203.2 254 180.18 42.97

(CONTINUED)

Drill Pipe SPECIFICATIONS

Designationsa

Pipe

body

OD

Pipe wall thickness

Drill Pipe

Weld

Neck

Tool Joint RSC

bevel dia.

Approx

OD

Pin ID

Pin OD Box OD massc

Length Length



-12.5%

max. ±0.8

+0.4 ±6.4

±6.4

±0.4

Calculated -0.8

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Internal-External Upset (IEU) 6-5/8 25.2 E IEU 6-5/8FH 168.28 8.38 176.2 203.2 127 203.2 279.4 195.66 41.03

6-5/8 25.2 X IEU 6-5/8FH 168.28 8.38 176.2 203.2 127 203.2 279.4 195.66 41.03

6-5/8 25.2 G IEU 6-5/8FH 168.28 8.38 176.2 209.6 120.7 203.2 279.4 195.66 42.6

6-5/8 25.2 S IEU 6-5/8FH 168.28 8.38 176.2 215.9 108 203.2 279.4 195.66 44.73

6-5/8 27.7 E IEU 6-5/8FH 168.28 9.19 176.2 203.2 127 203.2 279.4 195.66 43.79

6-5/8 27.7 X G IEU 6-5/8FH 168.28 9.19 176.2 209.6 120.7 203.2 279.4 195.66 45.35

6-5/8 27.7 S IEU 6-5/8FH 168.28 9.19 176.2 215.9 108 203.2 279.4 195.66 47.48

Drill Pip e SPECIFICATIONS

Designationsa

Pipe-body

OD

Pipe wall thickness

Drill Pipe

Weld

Neck

Tool Joint RSC

bevel dia.

Approx

OD

Pin ID

Pin OD Box OD

massc

Length Length



-12.5%

max. ±0.8

0.4 ±6.4

±6.4

±0.4

Calculated -0.8

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Internal Upset (IU)

4 14 E IU NC40 101.6 8.38 106.4 133.4 71.4 177.8 254 127.4 22.42

4 14 X IU NC40 101.6 8.38 106.4 133.4 68.3 177.8 254 127.4 22.76

4 14 G IU NC40 101.6 8.38 106.4 139.7 61.9 177.8 254 127.4 23.61


4 14 S IU NC40 101.6 8.38 106.4 139.7 50.8 177.8 254 127.4 24.03

4-1/2 13.75 E IU NC46 114.3 6.88 119.1 152.4 85.7 177.8 254 145.26 22.5

Drill Pip e SPECIFICATIONS

Designationsa

Pipe-body

OD

Pipe wall thickness

Drill Pipe

Weld

Neck

Tool Joint RSC

bevel dia.

Approx

OD

Pin ID

Pin OD Box OD massc

Length Length



-12.5%

max. ±0.8

0.4 ±6.4

±6.4

±0.4

Calculated -0.8

1 2 3 4 5 6 7 8 9 10 11 12 13 14

External Upset (E U)

2-3/8 6.65 E EU NC26 60.32 7.11 65.1 85.7 44.5 177.8 203.2 82.95 10.45

2-3/8 6.65 X G EU NC26 60.32 7.11 65.1 85.7 44.5 177.8 203.2 82.95 10.58

2-7/8 10.4 E EU NC31 73.02 9.19 81 104.8 54 177.8 228.6 100.41 16.25

2-7/8 10.4 X G EU NC31 73.02 9.19 81 104.8 50.8 177.8 228.6 100.41 16.5

2-7/8 10.4 S EU NC31 73.02 9.19 81 111.1 41.3 177.8 228.6 100.41 17.19

3-1/2 9.5 E EU NC38 88.9 6.45 98.4 120.7 68.3 203.2 266.7 116.28 15.77

3-1/2 13.3 E EU NC38 88.9 9.35 98.4 120.7 68.3 203.2 266.7 116.28 20.77

3-1/2 13.3 X EU NC38 88.9 9.35 98.4 127 65.1 203.2 266.7 116.28 21.76

3-1/2 13.3 G EU NC38 88.9 9.35 98.4 127 61.9 203.2 266.7 116.28 21.9

3-1/2 13.3 S EU NC38 88.9 9.35 98.4 127 54 203.2 266.7 116.28 22.22

3-1/2 15.5 E EU NC38 88.9 11.4 98.4 127 65.1 203.2 266.7 116.28 24.67

3-1/2 15.5 X EU NC38 88.9 11.4 98.4 127 61.9 203.2 266.7 116.28 25.07

3-1/2 15.5 G EU NC38 88.9 11.4 98.4 127 54 203.2 266.7 116.28 25.38

3-1/2 15.5 S EU NC38 88.9 11.4 98.4 139.7 57.2 203.2 266.7 127.4 26.19

4 14 E EU NC46 101.6 8.38 114.3 152.4 82.6 177.8 254 145.26 23.67

4 14 X G EU NC46 101.6 8.38 114.3 152.4 82.6 177.8 254 145.26 24.12

4 14 S EU NC46 101.6 8.38 114.3 152.4 76.2 177.8 254 145.26 24.46

4-1/2 13.75 E EU NC50 114.3 6.88 127 168.3 95.3 177.8 254 153.99 23.65

4-1/2 16.6 E EU NC50 114.3 8.56 127 168.3 95.3 177.8 254 153.99 27.51

4-1/2 16.6 X G EU NC50 114.3 8.56 127 168.3 95.3 177.8 254 153.99 28.07

4-1/2 16.6 S EU NC50 114.3 8.56 127 168.3 88.9 177.8 254 153.99 28.47

4-1/2 20 E EU NC50 114.3 10.92 127 168.3 92.1 177.8 254 153.99 32.93


4-1/2 20 X G EU NC50 114.3 10.92 127 168.3 88.9 177.8 254 153.99 33.63

4-1/2 20 S EU NC50 114.3 10.92 127 168.3 76.2 177.8 254 153.99 34.34

2.2 Sour Service Drill Pipe (H2S)

Standard: IRP1.8, NACE MR0175 / ISO 15156

Size Range: 2-3/8" ~ 6-5/8" Special Features:

• Strict control over the S and P content (S+P < 0.03%)

• Increase of the Cr, Mo content, unique heat treatment

process, grain refinement. (The grain size exceeds Grade 8 standards in ASTM Standard)

• Compound with double shoulder high torque connection (DS, DSHT)

• Strict control over the intensity, rigidity and other indexes.

Specification and Feature of Materials: Contents DP95SS DP105SS

Chemical composition wt% S≤0.005, P≤0.010 S≤0.005, P≤0.010

metallographic structure tempered martensite, ≥95% tempered martensite, ≥95%

Grain size ASTM E112 Grade 8 or finer ASTM E112 Grade 8 or finer

Yield strength 655/758MPa(95/110KSI) 724/827MPa(105/120KSI)

Tensile Strength 724/896MPa(105/130KSI) 793/965MPa(115/140KSI)

Elongation % ≥17 ≥17

Impact Energy (7.5*10*55, -20℃) (single)≥80J(59Ft-Lb) (single)≥80J(59Ft-Lb)

Hardness HRC Single18---27, average≤25 Single21---29, average≤28

sulfur tolerance

≥557MPa(80.8KSI), ≥85%SMYS

≥616MPa(89.2KSI),

≥85%SMYS

Chemical composition S≤0.005, P≤0.010 S≤0.005, P≤0.010

metallographic structure tempered martensite, ≥90% tempered martensite, ≥90%

Grain size Grade 7 or finer Grade 7 or finer

Yield strength 758/862MPa (110/125KSI) 758/862MPa (110/125KSI)

Tensile Strength 862/1000MPa(125/145KSI) 862/1000MPa(125/145KSI)

Elongation % ≥15 ≥15

Impact Energy (10*10*55, -20℃) Single≥90J(66Ft-Lb) Single≥90J(66Ft-Lb)

Hardness HRC Single≤32, Average≤30 Single≤32, Average≤30

Sulfur Tolerance

≥493MPa(71.5KSI) ≥493MPa(71.5KSI)

≥65%SMYS ≥65%SMYS

2.3 Digital Drill Pipe Technical Advantages

Realizing read-write for drill pipe's remote sense, reducing the

probability of human error, enhancing the accuracy of

management. Realizing fast efficient storage and recognition

technique for drill pipe's manufacturing, using, maintaining

information with the cooperation of drill pipe digital management

platform.

All the operation and maintenance date of each drill pipe can be

preserved in time to master the use of drill pipe real-time and

dynamically for easy classification management of drill pipe. So the life-cycle of drill pipe from purchase, use,

maintenance, scrapping and disposition of drill pipe can be wholly controlled within a perfect digital

management.

Technical Parameter

Chip of Digi tal Drill Pipe

Operating Temperature -40℃ ~ 200℃

Pressure Resistance 70MPa

Vibration Frequency Resistance 5Hz ~ 10Hz

PH 3 ~ 14

Anti-electromagnetic interference 120000A/m

Recognition Range 0~1m

Chip Recognition Speed ≤0.5s

Chip Recognition Rate ≥95%

Drill Pipe Recognition Rate ≥98%

2.4 Efficient Cuttings Bed Clean Drill Pipe Efficient cuttings bed clean drill pipe is designed to improve hole-cleaning performance in horizontal or

complex non-conventional wells.

Special Features:

• Cleaning efficiency improvement • Cut down on well bore damage • Reduce downhole failure risk

2.5 Aluminium Alloy Drill Pipe We adopt the world's leading proprietary manufacturing technology for high-strength environmental friendly

aluminium alloy drill pipe used in oil & gas industry. We utilize two-way reverse hydraulic extruding machines

from Germany, the largest vertical compound hardening furnace in Asia and proprietary shrinkage fitting

equipment.

2.5.1 External Upset Aluminium Alloy Drill Pipe

2.5.2 Internal Upset Aluminium Alloy Drill Pipe

2.5.3 Integral Tool Joint Aluminium Alloy Drill Pipe

2.5.4 Non-Magnetic Heavy Weight Aluminium Alloy Drill Pipe

2.5.5 Spiral Thick-walled Aluminium Alloy Drill Pipe

2.5.6 Thick-walled Aluminium Alloy Drill Pipe

2.6 Trenchless / Horizontal Directional Drilling (HDD) Drill Pipe We adopt the world's leading proprietary manufacturing technology for high-strength environmental friendly drill

pipe used in Trenchless / Horizontal Directional Drilling HDD industry.

Connection Thread:

The threads of our landing and drill string cover all API Standard connection types and many NON-API

premium connections, as listed below:

Standard Connection Threads

API NC / REG / FH / IF

NSCC NSCC / NSCT

Grant Prideco HT Series / GPDS Series / XT Series

MISC. PAC / AOH

Remarks: The other thread connections not listed in this sheet will be provided upon requests.

MANUFACTURING PROCESS:

Hardbanding / Hardfacing

NOV Tuboscope TCS Titanium / TCS 8000

ARNCO 100XT 150XT 300XT 350XT

Welding Style Casing friendly (Flush) / Raised

Internal Coating

(Typically TK34 & TCS2000)

III. HEAVY WEIGHT DRILL PIPE Heavy Weight Drill Pipe (HWDP) is an intermediate weight drill stem component which is used in

conjuction with the drill pipes and drill collars. HWDP is available in standard, spiral and non-

magnetic designs. In some applications, HWDP can also be used instead of drill collars.

Our facility is awarded by the API and NS-1 / DS-1 certificate, which is made from one-piece AISI

4145H modified quenched and tempered steel. It is designed for tough drilling environment in vertical

and directional wells. HWDP is a transition member between drill collar and drill pipe. For directional

holes, HWDP provides weight-on-bit and additional stiffness to prevent buckling.

Features and Benefits:

● A center upset or wear pad to increase tube life, reduce hole drag and differential sticking problems.

● Connections are completed (phosphate coated) to protect them from the elements after machining

and to help prevent galling upon initial makeup.

● Thread roots are cold rolled on API and H90 connections. And pressed steel thread protectors are

supplied for standard connections.

● Hardbanding and internal coating can be provided upon customer's requests.

Product range 2-7/8" ~ 6-5/8"

Material AISI 4145H, AISI 1340

Type of End Finish Integral Type, Welded Type

Nominal

OD

Approx.

Weight

Body

OD

Upset

OD

Upset

Length

Elevator

Upset

OD

Connection

Yield Strength

Body Data

Tool Joint Data

Type

ID OD Pin/Box

Length

Body

Tool Joint

Tens.

Yield

Tors.

Yield

Tens.

Yield

Tors.

Yield

Recom.

MUT A B C D E F G I/H in lb/ft in in in in in in in Ksi Ksi lbs ft-lbs lbs ft-lbs ft-lbs

2-7/8 17.4 1-3/4

3-1/4 24 3-3/16 NC31 1-3/4 4-1/8 27/21 65 120 265600 12600 572200 14200 8500

3-1/2 25 2-1/16 4 24 3-5/8 NC38 2-1/16 4-3/4 27/21 65 120 408200 23100 764000 19200 11500

3-1/2 23.4 2-1/4

4 24 3-5/8 NC38 2-1/4 4-3/4 27/21 65 120 366900 21800 687700 19200 11500

4 38.8 2-1/2

4-1/2 24 4-3/16 NC40 2-1/2 5-1/4 27/21 65 120 497700 33300 758500 25600 15400

4-1/2 40.8 2-13/16

5 24 4-11/16 NC46 2-13/16 6-1/4 27/21 65 120 548100 47400 1024500 39700 23800

5 49.5 3 5-1/2 24 5-1/8 NC50 3 6-5/8 27/21 65 120 816800 66800 1278200 52900 31700

5-1/2 49.6 3-7/8

6 24 5-11/18 5-1/2FH

3-7/8 7 27/21 65 120 777700 76900 1182500 53100 31900

5-7/8 58.2 3-7/8

6-3/8 24 6 5-1/2FH

4 7 27/21 65 120 995500 100900 1265800 76200 45700

6-5/8 59 5 7-1/8 24 6-15/16 6-5/8FH

5 8 27/21 65 120 946400 120500 1233900 63800 38300

IV. DRILL COLLAR (SLICK & SPIRAL, NON-MAGNETIC)

4.1 Drill Collar Drill Collar is the basic component in the BHA which provides weight on the bit for drilling and keeps the drill

string in tension. Our drill collar is manufactured from AISI 4145HM quenched and tempered steel and is heat

treated along its entire length for uniform toughness and durability. Strict metallurgical tests are performed per

specifications to ensure that the heat treatment produces consistent and maximum hardness through the

depth of the bar.

Main Technical Parameters Size Range 2-7/8" - 11" Type of End Finish Slick, Spiral

Material AISI 4145HM, Non-Magnetic

Connection

OD Bore Dia. B.S.R. Length,

±6in

Tensile Strength

Impact Value

Hardness D d Round

Number

Yield

Strength

Tensile

Strength

Elongation inch (mm) inch (mm) ft Brinnel

NC23-31 3-1/8 (79.4) 1-1/4 (31.8) 2.57:1 30

min.

min.

min. 59ft·lb

NC26-36 (2-3/8IF) 3-1/2 (88.9) 1-1/2 (38.1) 2.42:1 30

NC31-41 (2-7/8IF) 4-1/4 (104.8) 2 (50.8) 2.43:1 30 or 31

NC35-47 4-3/4 (120.7) 2 (50.8) 2.58:1 30 or 31

NC38-50 (3-1/2IF) 5 (127) 2-1/4 (57.2) 2.38:1 30 or 31

NC44-60 6 (152.4) 2-1/4 (57.2) 2.49:1 30 or 31

NC44-60 6 (152.4) 2-13/16 (71.4) 2.84:1 30 or 31

NC44-62 6-1/4 (158.8) 2-1/4 (57.2) 2.91:1 30 or 31 110000psi

(≥

758Mpa)

140000psi

(≥

965Mpa)

min.

13%

(≥80J) 285-341 NC46-62 (4IF) 6-1/4 (158.8) 2-13/16 (71.4) 2.63:1 30 or 31

NC46-65 (4IF) 6-1/2 (165.1) 2-1/4 (57.2) 2.76:1 30 or 31

NC46-65 (4IF) 6-1/2 (165.1) 2-13/16 (71.4) 3.05:1 30 or 31

NC46-67 (4IF) 6-3/4 (171.5) 2-1/4 (57.2) 3.18:1 30 or 31

NC50-67 (4-1/2IF) 6-3/4 (171.5) 2-13/16 (71.4) 2.37:1 30 or 31

NC50-70 (4-1/2IF) 7 (177.8) 2-1/4 (57.2) 2.54:1 30 or 31

min.

100000psi

(≥

689Mpa)

min.

135000psi

(≥

931Mpa)

min.

13%

min. 59ft·lb

(≥80J)

285-341

NC50-70 (4-1/2IF) 7 (177.8) 2-13/16 (71.4) 2.73:1 30 or 31

NC50-72 (4-1/2IF) 7-1/4 (184.2) 2-13/16 (71.4) 3.12:1 30 or 31

NC56-77 7-3/4 (196.9) 2-13/16 (71.4) 2.70:1 30 or 31

NC56-80 8 (203.2) 2-13/16 (71.4) 3.02:1 30 or 31

6-5/8REG 8-1/4 (209.6) 2-13/16 (71.4) 2.93:1 30 or 31

NC61-90 9 (228.6) 2-13/16 (71.4) 3.17:1 30 or 31

7-5/8REG 9-1/2 (241.3) 3 (76.2) 2.81:1 30 or 31

NC70-97 9-3/4 (247.7) 3 (76.2) 2.57:1 30 or 31

NC70-100 10 (254) 3 (76.2) 2.81:1 30 or 31

8-5/8REG 11 (279.4) 3 (76.2) 2.84:1 30 or 31

Features and Benefits

· A hardness range of 285 to 341 BHN and a Charpy impact value of 40ft-lbs are guaranteed for evenly

distributed 16 points in any cross sections at environmental temperature.

· Connections are phosphate coated after maching to protect the threads from corrosive elements and to

prevent galling upon initial make-up.

· Thread roots are cold rolled on API and H-90 connections.

· Pressed steel thread protectors are supplied for all drill collar that are equipped with standard connection.

· Slips and elevator grooves can be produced upon request.

Spiral Grooving

In order to reduce differential pressure sticking, the surface of drill collar can be spiral-grooved.

Spiral Grooved Drill Collars: Usual Sizes

OD 4-3/4" 6-1/4" 6-3/4" 7-1/4" 7-1/2" 8" 9-1/2" 10" 11"

Depth of cut (in)

7/32 9/32 5/16 11/32 11/32 3/8 13/32 7/16 15/32

±1/32 ±1/16 ±1/16 ±1/16 ±1/16 ±1/16 ±3/32 ±3/32 ±3/32

Spiral Pitch (in)

38 42 46 64 64 68 72 76 80

±1 ±1 ±1 ±1 ±1 ±1 ±1 ±1 ±1

Note 1 - Loss of weight is approximative 4%, compared to slick drill collar.

Note 2 - Length of spiraled section allows reconditionning of connection.

Spiral Drill Collar with Slip and Elevator Slip

Stress Relief Grrove & Bore Back Box

Stress Relief Grooves improve bending strength of pin

and box connections and, therefore durability. Stress

relief grooves for box and pin are defined by API.

Bore back box is a gradual reduction of internal diameter

by gradually increasing material cross sectional area at

critical section. This will ultimately drastically reduce

stress concentration during static / dynamic loading and

prevents box connections from failure.

Hardbanding

We provide several hardbanding materials for customer's

option:

Arnco 100XT, Arnco 300XT, TCS 8000.

Slip and Elevator Recess

Slip and elevator recesses improve downhole handling

efficiency and safety. Slip and elevator recesses are

machined in accordance with API 7-1.

Drill Collar

Recommended Handbanding Location

Drill Collar with slip and elevator recesses (ZIP)

4" long wear pad above elevator recess.

1" long wear pad above slip recess.

10" long wear pad under slip recess.

Drill Collar with slip recess:

10" long wear pad under slip recess.

4" long wear pad above slip recess.

Drill Collar without slip and elevator recess: 10" long wear pad at 30"

from pin shoulder.

OD in A

in B in

R in

10 9-1/8 9-1/2 1/4

9-3/4 8-7/8 9-1/4 1/4 9-1/2 8-5/8 9 1/4

9-1/4 8-3/8 8-3/4 1/4

9 8-1/8 8-1/2 1/4

8-1/2 7-3/4 8 3/16

8 7-1/4 7-1/2 3/16

7-3/4 7 7-1/4 3/16

7-1/2 6-3/4 7 3/16

7-1/4 6-1/2 6-3/4 3/16

7 6-1/4 6-1/2 3/16

6-3/4 6 6-1/4 3/16

6-1/2 5-7/8 6 1/8

6-1/4 5-5/8 5-3/4 1/8

6 5-3/8 5-1/2 1/8

5-3/4 5-1/8 5-1/4 1/8

4-3/4 4-1/4 4-3/8 1/8

4-1/8 3-11/16 3-3/4 1/8

4.2 Non-Magnetic Drill Collar

Our non-magnetic drill collars are made from non-magnetic steel bars with low-strength by combining a

proper chemical analysis and rotary hammer forging process with low magnetic permeability and excellent

machinability. It will not interfere with the specialized directional equipment but rather will enhance the

performance of the drilling operation.

The non-magnetic drill collars function as a housing for the MWD tools, while

at the same time provide the weight for drill string. The non-magnetic drill

collars are suitable for all types of drilling including straight and directional

applications.

Each drill collar is fully inspected by our internal inspection department. All

data obtained are recorded on the inspection certificate furnished with each

drill collar. API Monogram, serial number, OD, ID, type and size of

connections are stamped on the recessed mill flats.

We manufacture three types of non-magnetic drill collars according to the

customer's order, including Slick, Spiral and Flex Non-Mag Drill Collars.

Slick Non-Mag Drill Collar

Our slick non-mag drill collar provides the required weight on bit, and will not

interfere with the directional drilling ability.

Spiral Non-Mag Drill Collar

Our spiral non-mag drill collar is designed to allow greater flow area for drilling

fluids, while providing the benefits of non-mag steel for complex drilling

programs.

Flex Non-Mag Drill Collar

Our non-mag drill collar is thinner and more flexible than standard drill collar. Their ability to make short radius

turns, bend for high build angles, and pass through severe doglegs makes them ideal for use in directional

and horizontal applications. Manufactured with non-magnetic steel, this drill collar is well suitable for housing

MWD equipments.

V. ROLLER REAMER Roller Reamers are designed for reaming and stabilization in any type of formation. All parts of the tool are

made of special alloy steel and heat treated fro hardness. Drilling crews can easily replace any part in the filed without using

any special tools.

We offer three types of cutters for different types of formation.

Type A Type B Type C Hard Formation Medium to Hard Fromation Soft Formation

Main Technical Parameter

Hole Size (in)

Thread Type (API)

O.D. I.D.

(mm) (mm)

6-1/8 3-1/2IF 155 31.7

8-1/8 4IF 206 38

8-3/8 4-1/2IF 212.7 44

8-1/2 4-1/2IF 215.9 44

9-5/8 NC50 244 57

12-1/4 6-5/8REG 311.2 71

17-1/2 7-5/8REG 444.5 76

26 7-5/8REG 660.4 76

28 7-5/8REG 711 76

30 7-5/8REG 762 76

32 7-5/8REG 812 76

36 7-5/8REG 914 76

VI. STABILIZER

6.1 Integral Blade Stabilizer Integral Blade Stabilizer (IBS) is a one-piece rotating stabilizer which can be placed near bit or higher in the

drill string. It is a one-piece structure manufactured from high strength alloy steel (non-magnetic steel optional),

that prevents differential sticking of the drillstring by stabilizing the BHA and keeping drill collars and drill pipes

away from the borehole wall. This reduces vibration, drill pipe whirl, and wellbore tortuosity; furthermore, the

stabilization maintains drilling trajectory whether drilling straight, horizontal or directional wells.

Optional Stabilizers We offer several options for IBS, in both alloy steel and non-magnetic materials. ● Spiral Integral Blade Stabilizer; ● Straight Integral Blade Stabilizer; ● Non-Magnetic Integral Blade Stabilizer;

Specification - Spiral Integral Blade Stabilizer

OD Stab

Body OD

Bore Fishing neck

length Crown Length

Blade taper angle Overall

Length

Connection

Top Down Top Down

3-3/4“

95.3mm

3-1/8"

79.4mm

1-1/4"

31.8mm

26"

660mm

10"

254mm

30°

15° 58"

1480mm

NC23B

NC23P

3-3/4"

95.3mm

3-1/8"

79.4mm

1-1/4"

31.8mm

26"

660mm

10"

254mm

30°

15° 58"

1480mm

NC23B

2-3/8"REGB

4-1/2"

114.3mm

3-1/2"

88.9mm

1-1/2"

38.1mm

26"

660mm

10"

254mm

30°

15° 59"

1500mm

NC26B

NC26P

4-1/2"

114.3mm

3-1/2"

88.9mm

1-1/2"

38.1mm

26"

660mm

10"

254mm

30°

15° 59"

1500mm

NC26B

2-3/8"REGB

5-1/2"

139.7mm

4-3/4"

120.6mm

2"

50.8mm

30"

762mm

12"

305mm

30°

15° 68"

1730mm

NC38B

NC38P

5-1/2"

139.7mm

4-3/4"

120.6mm

2"

50.8mm

30"

762mm

12"

305mm

30°

15° 68"

1730mm

NC38B

3-1/2"REGB

6"

152.4mm

4-3/4"

120.6mm

2"

50.8mm

30"

762mm

12"

305mm

30°

15° 69"

1760mm

NC38B

NC38P

6"

152.4mm

4-3/4"

120.6mm

2"

50.8mm

30"

762mm

12"

305mm

30°

15° 69"

1760mm

NC38B

3-1/2"REGB

7-1/2"

190.5mm

6-1/2"

165.1mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 72"

1830mm

NC46B

NC46P

7-1/2"

190.5mm

6-1/2"

165.1mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 72"

1830mm

NC46B

4-1/2"REGB

7-7/8"

200mm

6-1/2"

165.1mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 72"

1830mm

NC46B

NC46P

7-7/8"

200mm

6-1/2"

165.1mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 72"

1830mm

NC46B

4-1/2"REGB

8"

203.2mm

6-3/4"

171mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 73"

1860mm

NC50B

NC50P

8"

203.2mm

6-3/4"

171mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 73"

1860mm

NC50B

4-1/2"REGB

8-1/2"

215mm

6-3/4"

171mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 73"

1860mm

NC50B

NC50P

8-1/2"

215mm

6-3/4"

171mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 73"

1860mm

NC50B

4-1/2"REGB

9-1/2"

241.3mm

6-3/4"

171mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 75"

1900mm

NC50B

NC50P

9-1/2"

241.3mm

6-3/4"

171mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 75"

1900mm

NC50B

4-1/2"REGB

(To be continued) Specification - Spiral Integral Blade Stabilizer (Continued 1)

OD Stab

Body OD

Bore

Fishing neck length

Crown Length


Length

Connection

Top Down Top Down

12" 304.8mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 79"

2010mm

6-5/8"REGB

6-5/8"REGP

12" 304.8mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 79"

2010mm

6-5/8"REGB

6-5/8"REGB

12-1/4"

311mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 79"

2010mm

6-5/8"REGB

6-5/8"REGP

12-1/4"

311mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 79"

2010mm

6-5/8"REGB

6-5/8"REGB

14-3/4"

374mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 84"

2140mm

6-5/8"REGB

6-5/8"REGP

14-3/4"

374mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 84"

2140mm

6-5/8"REGB

6-5/8"REGB

15-1/2" 393.7mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 85"

2160mm

6-5/8"REGB

6-5/8"REGP

15-1/2" 393.7mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 85"

2160mm

6-5/8"REGB

6-5/8"REGB

16" 406.4mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 85"

2160mm

7-5/8"REGB

7-5/8"REGP

16" 406.4mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 85"

2160mm

7-5/8"REGB

7-5/8"REGB

17" 431.8mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 88"

2240mm

7-5/8"REGB

7-5/8"REGP

17" 431.8mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 88"

2240mm

7-5/8"REGB

7-5/8"REGB

17-1/2"

444mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 88"

2240mm

7-5/8"REGB

7-5/8"REGP

17-1/2"

444mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 88"

2240mm

7-5/8"REGB

7-5/8"REGB

20"

508mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 92"

2340mm

7-5/8"REGB

7-5/8"REGP

20"

508mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 92"

2340mm

7-5/8"REGB

7-5/8"REGB

22" 558.8mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

35°

35° 92"

2340mm

7-5/8"REGB

7-5/8"REGP

22" 558.8mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

35°

35° 92"

2340mm

7-5/8"REGB

7-5/8"REGB

(To be continued)

Specification -

Spiral Integral Blade Stabilizer (Continued 2)

OD Stab

Body OD

Bore

Fishing neck length

Crown Length


Length

Connection

Top Down Top Down

24" 609.6mm

9-1/2"

241.3mm

3"

76.2mm

32"

813mm

20"

508mm

45°

45° 97"

2460mm

7-5/8"REGB

7-5/8"REGP

24" 609.6mm

9-1/2"

241.3mm

3"

76.2mm

32"

813mm

20"

508mm

45°

45° 97"

2460mm

7-5/8"REGB

7-5/8"REGB

26"

660mm

9-1/2"

241.3mm

3"

76.2mm

32"

813mm

20"

508mm

45°

45° 100"

2540mm

7-5/8"REGB

7-5/8"REGP

26"

660mm

9-1/2"

241.3mm

3"

76.2mm

32"

813mm

20"

508mm

45°

45° 100"

2540mm

7-5/8"REGB

7-5/8"REGB

28"

711mm

9-1/2"

241.3mm

3"

76.2mm

32"

813mm

20"

508mm

45°

45° 102"

2590mm

7-5/8"REGB

7-5/8"REGP

28"

711mm

9-1/2"

241.3mm

3"

76.2mm

32"

813mm

20"

508mm

45°

45° 102"

2590mm

7-5/8"REGB

7-5/8"REGB

30"

762mm

9-1/2"

241.3mm

3"

76.2mm

34"

864mm

20"

508mm

45°

45° 107"

2720mm

7-5/8"REGB

7-5/8"REGP

30"

762mm

9-1/2"

241.3mm

3"

76.2mm

34"

864mm

20"

508mm

45°

45° 107"

2720mm

7-5/8"REGB

7-5/8"REGB

36"

914mm

9-1/2"

241.3mm

3"

76.2mm

36"

914mm

20"

508mm

45°

45° 120"

3050mm

7-5/8"REGB

7-5/8"REGP

36"

914mm

9-1/2"

241.3mm

3"

76.2mm

36"

914mm

20"

508mm

45°

45° 120"

3050mm

7-5/8"REGB

7-5/8"REGB

Straight Integral Blade Stabilizer

OD Stab

Body OD

Bore Fishing neck

length

Crown Length


Length

Connection

Top Down Top Down

6"

152.4mm

4-3/4"

120.6mm

2"

50.8mm

30"

762mm

12"

305mm

30°

15° 69"

1760mm

NC38B

NC38P

6"

152.4mm

4-3/4"

120.6mm

2"

50.8mm

30"

762mm

12"

305mm

30°

15° 69"

1760mm

NC38B

3-1/2"REGB

7-1/2"

190.5mm

6-1/2"

165.1mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 72"

1830mm

NC46B

NC46P

7-1/2"

190.5mm

6-1/2"

165.1mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 72"

1830mm

NC46B

4-1/2"REGB

7-7/8"

200mm

6-1/2"

165.1mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 72"

1830mm

NC46B

NC46P

7-7/8"

200mm

6-1/2"

165.1mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 72"

1830mm

NC46B

4-1/2"REGB

8"

203.2mm

6-3/4"

171mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 73"

1860mm

NC50B

NC50P

Specification -

8"

203.2mm

6-3/4"

171mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 73"

1860mm

NC50B

4-1/2"REGB

8-1/2"

215mm

6-3/4"

171mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 73"

1860mm

NC50B

NC50P

8-1/2"

215mm

6-3/4"

171mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 73"

1860mm

NC50B

4-1/2"REGB

9-1/2"

241.3mm

6-3/4"

171mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 75"

1900mm

NC50B

NC50P

9-1/2"

241.3mm

6-3/4"

171mm

2-13/16"

71.4mm

30"

762mm

16"

406mm

30°

30° 75"

1900mm

NC50B

4-1/2"REGB

12" 304.8mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 79"

2010mm

6-5/8"REGB

6-5/8"REGP

12" 304.8mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 79"

2010mm

6-5/8"REGB

6-5/8"REGB

12-1/4"

311mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 79"

2010mm

6-5/8"REGB

6-5/8"REGP

12-1/4"

311mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 79"

2010mm

6-5/8"REGB

6-5/8"REGB

14-3/4"

374mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 84"

2140mm

6-5/8"REGB

6-5/8"REGP

14-3/4"

374mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 84"

2140mm

6-5/8"REGB

6-5/8"REGB

Straight Integral Blade Stabilizer 15-1/2"

393.7mm 8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 85"

2160mm

6-5/8"REGB

6-5/8"REGP

15-1/2" 393.7mm

8"

203.2mm

2-13/16"

71.4mm

30"

762mm

18"

457mm

30°

30° 85"

2160mm

6-5/8"REGB

6-5/8"REGB

16" 406.4mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 85"

2160mm

7-5/8"REGB

7-5/8"REGP

16" 406.4mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 85"

2160mm

7-5/8"REGB

7-5/8"REGB

17" 431.8mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 88"

2240mm

7-5/8"REGB

7-5/8"REGP

17" 431.8mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 88"

2240mm

7-5/8"REGB

7-5/8"REGB

17-1/2"

444mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 88"

2240mm

7-5/8"REGB

7-5/8"REGP

17-1/2"

444mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 88"

2240mm

7-5/8"REGB

7-5/8"REGB

20"

508mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 92"

2340mm

7-5/8"REGB

7-5/8"REGP

Specification -

20"

508mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

30°

30° 92"

2340mm

7-5/8"REGB

7-5/8"REGB

22" 558.8mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

35°

35° 92"

2340mm

7-5/8"REGB

7-5/8"REGP

22" 558.8mm

9-1/2"

241.3mm

3"

76.2mm

30"

762mm

20"

508mm

35°

35° 92"

2340mm

7-5/8"REGB

7-5/8"REGB

6.2 Replaceable Sleeve Stabilizer

Replaceable sleeve stabilizer is special tool suitable for directional well drilling, consisting of an

integral mandrel and a sleeve. One mandrel series can be equipped with different sizes of sleeve for

several hole sizes. The stabilizer sleeve can be changed quickly and easily after sleeve hard banding

is worn-out. There’re two styles available: 2-piece stabilizer, and 3-piece stabilizer.


Bit Dia.

(in)

DC Dia.

(in)

Sleeve Stabilizer Body Thread Code on Both Ends

Length

(mm)

Work

O.D.

(mm)

Upset

End Dia.

(mm)

Upset End length (mm)

Fishing

Neck Length

(mm)

I.D.

(mm)

Make-up

Torque

(KN.m)

Over length L (mm)

Drill String Near Bit

Near Bit

Drill

String

Top Down

Top Down

8-1/2

6-1/2

480 214

190

200

600

71

6.95 ~

7.25

1,800 ~

1,900

1,800 ~

1,900

4-1/2

IF

4-1/2

IF

4-1/2

IF

4-1/2

REG

8-1/4 470 210

8 472 203

7-3/4 455 197

12-1/4

8

555 310

238

76

19. 7~

11

1,800 ~

2,000

1,800 ~

2,000

6-5/8

REG

6-5/8

REG

6-5/8

REG

6-5/8

REG

12 550 305

11-1/2 540 292

11 530 279

17-1/2

9

682 444

279

13.85 ~

16.55

7-5/8

REG

7-5/8

REG

7-5/8

REG

7-5/8

REG

17 676 432

16-1/2 670 420

16

644

407

22 2,000 ~

2,200

2,000 ~

2,200

24

26

6.3 Non-Rotating Stabilizer Non-rotating stabilizer (rubber sleeve stabilizer) is able to avoid blade wear and wall damage during

drilling. The non-rotating stabilizer consists of mandrel, copper washer, rubber sleeve, spacer sleeve

and self-locking lower sub.

During drilling, the non-rotating stabilizer transfers the torque by means of mandrel. The rubber sleeve

is sliding and moving relative to the mandrel and it plays a role in stabilizing the well. A locking clutch

(self-locking lower sub) will help to avoid sleeve rotation during washover operation.


Hole Size

(in)

Stabilizer Sleeve Stabilizer Body Overall Length

(mm) Length (mm)

O.D. (mm)

Blade Qty ID (mm) Fishing O.D. (mm)

Thread Type

13-3/8 500 313 4 71 165 4-1/2 IF 2,000

10-3/4 500 255 4 71 165 4-1/2IF 2,000

9-5/8 500 220 4 71 165 4-1/2IF 2,000

7 380 157 4 44 127 4-1/2IF 1,600

12-1/4 523 310 4 76 215 6-1/8REG 2,010

16 543 405 4 76 241 7-5/8REG 2,210

17 543 430 4 76 241 7-5/8REG 2,210

22 635 558 4 76 241 7-5/8REG 2,210

28 715 711 5 76 241 7-5/8REG 2,210

6.4 Float Valve Stabilizer Float valve stabilizer is effective tool in drilling operation. The stabilizer is connected at upper part of drill

bit, and the float valve assembly in stabilizer is near the bit thread. Such structure of stabilizer can

realize the automatically shutting off inside bore of tool to avoid the accident.


Stabilizer Type Stabilizer Body

O.D. (mm) Stabilizer Thread Float Valve Assembly

O.D. (mm)

Float Valve Assembly

Length (mm)

FV711 228 241 7-5/8 REG 121 298.4

FV588 228 241 7-5/8 REG 121 298.4

FV444 228 241 7-5/8 REG 121 298.4

FV311 203 209.6 6-5/8 REG 121 298.4

FV241 178 4-1/2 IF 98 247.6

FV214 178 165 4-1/2 REG 88 211.14

FV152 127 121 3-1/2 REG 61 165.1

6.5 Spherical Stabilizer Spherical stabilizer is new tool for various drilling operation. We provide spherical stabilizer from

6~ 12 1/4 inch.

Main Technical Parameters

Working O.D.

(in)

Body O.D. on

Both Ends

(mm)

I.D. (mm)

Stabilizer Length

(mm)

Thread on Both Stabilizer Ends (in)

String Type Near Bit Type

Top Down Top Down

6~6-1/2 121 51 785 3-1/2IF 3-1/2IF 3-1/2IF 3-1/2REG

7~7-7/8 159 57 850 4-1/2IF 4-1/2IF 4-1/2IF 4-1/2REG

8~8-1/2 165 71 850 4-1/2IF 4-1/2IF 4-1/2IF 4-1/2REG

9~9-1/4 197 71 870 4-1/2IF 4-1/2IF 4-1/2IF 4-1/2REG

12~12-1/4 203 76 940 6-5/8REG 6-5/8REG 6-5/8REG 6-5/8REG

Hard Facing Spiral Stabilizers Stabilizers are connected with drill collar accessories to make up the downhole drill stem. Hard Facing

stabilizers have high tensile, high-wearing feature and recoverability features. This particular dressing

comprises tungsten carbide inserts set in a power spray deposit, which is ideal for abrasive formations.

Area of tungsten carbide inserts coverage on the surface of hardfacing reaches more than 60%.

Hardfacing dressing is some special tungsten-carbide powder. It can get more strength and toughness

after the welding procedure. It can ensure the hardfacing’s abrasion resistance and not easily pull-out

to cause damage. We take full account of chemical composition of the material and the need for

repeated redressing without damage for our dressing technique. A well-controlled welding temperature

can result in a reliable surface alloy welding operation. The composition plane can reach more than

Hard Facing Stabilizers are based on the advanced technology from abroad.

◆ This type of stabilizers are generally used in abrasive rock formation in the

international drilling market.

◆ This kind of stabilizer’s hardfacing is firstly invented at home.

◆ This kind of stabilizer is prior to the traditional insert alloy column type

a. Traditional insert alloy column type stabilizer are easily pull - ou t and will cause damage to the drill bit.

b. It has a longer service life than traditional inlaid alloy column type

c. This type of stabilizers are easy to repair, to reduce the well drilling costs.

97%. Hard Facing Stabilizers can be cleaned by acetylene burner after abrasion. When the cleaning

process is completed, new hard facing can be welded on the surface, proving the better recoverability.

Features:

stabilizer.

stabiliz

er.

We offer a complete range of Hardfacing to suit all drilling conditions. All stabilizers can be banded

with the following hardfacing.

Crushed tungsten carbide held in a nickel bronze

matrix. The 3mm grain size ensures greater

concentration of carbide which is ideal for soft

formation drilling.

Trapezoidal tungsten carbide inserts held in a sintered carbide nickel bronze matrix. This will give a greater depth of carbide coverage - ideal for high deviation drilling in abrasive formations.

Tungsten carbide inserts set in a powder spray

deposit ideal for abrasive formations. 97%

bonding guaranteed, certified by ultrasonic report.

Recommended for non-magnetic stabilizers.

Tungsten carbide inserts (button type). The inserts have been developed to allow cold insertion and maintain close fit. A greater concentration of inserts on the bottom third of the blade and leading edge will increase surface contact to reduce wear in highly abrasive formations.

VII. KELLY ( SQUARE AND HEXAGONAL) Kelly is main driver of the whole drill string. It transmits torsional energy from the rotary table through

the drill string to the bit at the bottom of the hole. The kelly is a long square or hexagonal, precision

machined heavy steel bar that is supported by the swivel through the rotary table and is connected to

the first joint of drill pipe in the drill string.

The kelly has been approved by NS-1 certification. Straightness of the kelly is very crucial in the

manufacturing process, thus straightness inspections are carried out before, during and after each

The oxy-acetylene process applies tough molten carbide particles of varying sizes held in a nickel chrome matrix which provides excellent bonding properties and greater surface wear characteristics are achieved. Surface hardness levels over 40HRC. Ideal for Geo-Thermal

applications over 350℃.

This process is a highly automated way of applying hardface and utilizes a combined arc / plasma stream on the work piece surface. This results a low base metal dilution and a dense, uniform coating, the filling medium can be variety of hardfacing consumables.

machining operation. The flats are precision-milled to API and NS-1 specifications. All milling

processes are performed on specially designed rigid kelly mills to ensure tight tolerance and high

quality drive sections. Each kelly is furnished with a pressed steel thread protector.

Features and Benefits:

● Manufactured from AISI 4145H modified, fully heat treated alloy steel with a brinell hardness range

of 285-341BHN and a minimum average Charpy impact value of 40ft-lbs;

● Ends and drive sections, IDs and connections machined and inspected to

API and NS-1 specifications; ● Ultrasonic inspection is performed on all

sections; ● Shipped in a protective steel-cased scabbard.


Kelly

Size

(In)

Length

(In)

Upper Box Connection Lower Pin

Connection

I.D.

(mm)

Driving Section Type(LH) O.D. Cross

Flat

(mm)

For

Square

(mm)

Cross Corner for Hex

Standard

Optional Standard

(mm)

Optional

(mm)

Thread O.D.

(mm)

2/1/2 12.19 6-5/8REG 4-1/2REG 196.8 146 85.7 31.8 63.5 83.3 3 12.19 6-5/8REG 4-1/2REG 196.8 146 NC26 104.8 44.4 76.2 100 85.7

3/1/2 12.19 6-5/8REG 4-1/2REG 196.8 146 NC31 120.6 57.2 88.9 115.1 100.8

4/1/4 12.9

6-5/8REG

4-1/2REG

196.8

146

NC38 158.8 71.4 108 141.3 122.2

NC38 161.9 71.4 108 141.3 122.2

5/1/4 12.9

6-5/8REG

4-1/2REG

196.8

146

NC46 177.8 82.6 133.3 175.4 151.6

NC50 177.8 82.6 133.3 175.4 151.6

6 12.9

6-5/8REG

196.8

146

5-1/2FH 152.4 173

NC56 152.4 173

VIII. HOLE OPENER

IX. DRILL STRING ACCESSORIES

9.1 Lifting Subs Drill tool lifting sub is a special tool for lifting the drill tools in petroleum natural gas industry and geologic

exploration. Drill tool lifting sub is divided into two types: 18 degree shoulder and 90 degree shoulder.

The lifting sub can be selected according to elevator structure.


No. Nominal size (mm)

I.D.(mm)

End of pin Lifting end

Connection

O.D.(mm)

DF/mm

Tong Space

LPB/mm

O.D.(mm)

Tong Space

LPB/mm

1 73

31.8 NC23 79.4 76.2

250

111.1

100

2 44.5 NC26 88.9 82.9

3 89

54 NC31 104.8 100.4 127

4 50.8 NC35 120.7 114.7

5 68.3 NC38 127 121

6 127

71.4

NC44 152.4 144.5 168.3

7 158.8 149.2

8 158.8 150

9 NC46

165.1 154.8

10 171.5 159.5

11 82.6 NC50

177.8 164.7

12 184.2 169.5

13 NC56

196.8 185.3

300

14 203.2 190.1

15

95.3

6 5/8 REG 209.6 195.7

16 NC61 228.6 212.7

17 7 5/8 REG 241.3 223.8

18 NC70

247.7 232.6

19 254 237.3

20 NV77 279.4 260.7

9.2 Crossover Subs

Cross-over sub acts for conversion and connection of drill stem component in petroleum, natural gas

and geology drilling work. It is used mainly for connecting of upper drill tools and lower drill tools during

drilling operations. These crossovers can be divided into two groups: Straight OD Crossover Sub and

Reduced Section Crossover Sub.

Straight OD Sub

Straight OD sub is used to connect drill stem members that have a similar outside diameter. The drill

bit, downhole tools, heavy weight drill pipe and drill pipe can be crossed over using a straight OD sub.

Reduced Section Sub

Reduced Section Sub is used to connect drill stem parts that have different diameters. This sub can

be used to crossover large OD drilling tools or a tapered drill collar string.


Sort Description Upper Connection Part Lower Connection Part Type

1 Kelly cross-over sub Kelly Drill pipe A or B

2 Drill pipe cross-over sub Drill pipe Drill pipe A or B

3 Interim cross-over sub Drill pipe Drill collar A or B

4 Drill collar cross-over sub Drill collar Drill collar A or B

5 Drill bit cross-over sub Drill collar Drill bit A or B

6 Swivel cross-over sub Swivel lower sub Kelly C

7

Fishing cross-over sub

Kelly Drill pipe C

Drill pipe Fishing tools C

9.3 Lifting Plug & Cap

Lifting cap is a special tool for lifting of drilling tools in petroleum, natural gas, drilling engineering and

geographical exploration.


Connection O.D. (mm) Length (mm) Connection O.D. (mm) Length (mm)

7 5/8 REG Pin 210 290 7 5/8 REG Box 230 290

6 5/8 REG Pin 190 280 6 5/8 REG Box 200 280

NC50 Pin 155 270 NC50 Box 160 260

NC46 Pin 150 270 NC46 Box 160 260

NC38 Pin 115 260 NC38 Box 120 270

NC31 Pin 100 210 NC31 Box 120 220

2 3/8 REG Pin 80 190 2 3/8 REG Box 110 200

NC26 Pin 89 200 NC26 Box 110 200

3 1/2 REG Pin 100 220 3 1/2 REG Box 130 270

4 1/2 REG Pin 145 260 4 1/2 REG Box 160 260

2 7/8 EUE Pin 80 220 2 7/8 EUE Box 80 220

9.4 Kelly / Top Drive Saver Subs When rods is added to increase the depth of drilling, the loosening of the threads are now performed

at the bottom end of the saver sub as opposed to the bottom of the Kelly or Top Drive which is the

most valuable part of the drill string. This means that the connection between the top end of the saver

sub and kelly/ Top Drive is seldom used, and suffers minimal wear and tear, whereas the lower

connection is used in almost all cases displacing the most wear and tear from the rotary head

connection to the much cheaper Saver Sub which is expendable and reduce costs.

9.5 Oriented Bent Sub The oriented bent sub is a major power deflection tool, having a fixed angle deviated from the low

end thread of the bent sub to the axial line of drill stem. Under the application of oriented bent sub,

the power drill tool give the bit a constant lateral force to ensure that the bit can cut on the well wall

laterally and further drill into a curved well trace.

OD. Mm (in)

Connection Bent Angle

(Deg.)

ID, Oriented Sleeve (mm)

Box Pin

89 (3-1/2) NC26 NC26 2 36

105 (4-1/8) NC31 NC31 2 36

127 (5) NC38 NC38 2 36

159 (6-1/4) NC46 NC46 2 50

165 (6-1/2) NC50 NC50 2 50

178 (7) 5-1/2FH 5-1/2FH 2 50

203 (8) 6-5/8REG

6-5/8REG

2 50

9.6 Drill Bit Sub

9.7 Wear Sub During Drilling operation, major wear and tear wear often take place between drill pipes and casings.

Wear Sub is used to avoid such wear between drill pipes and casings. With features, such as compact

structure adn easy operation, wear sub can prolong the service life of drill pipe and casing and reduce

the vibration and trembling of drilling tools. It can also limit the contact friction between metals.

The wear sub consists of a highly wear rubber sleeve, a metal stiffening liner and a sub body. The

rubber sleeve is installed in the middle of sub body and some clearance is given to allow sleeve to

rotate freely. The rubber sleeves are made of rubber mixtures with good wear resistance.

During drilling operation, the rubber sleeve and sub body can make a relative rotation. The rubber

sleeve OD is larger than drill pipe tool joint OD, therefore the tool joint and drill pipes cannot come in

contact with casing. The rubber sleeve on wear sub will first contact casing. When friction between

rubber sleeve and casing takes place, wearing can be reduced due to the rubber sleeve wear

resistance and softness. Usage of tool joints of drill pipes and drill string tools will also be reduced.

Spec Body OD mm Sub OD mm ID mm Connection

7" Casing 121 143 38.1 3-1/2IF

9-5/8" Casing 168 190 71.4 4-1/2IF

178 197 71.4 5-1/2IF

10-3/4" Casing

180 225 71.4 4-1/2IF

5-1/2IF

13-3/8" Casing

203 285 71.4 5-1/2IF

9.8 Float Valve Sub Float valve sub is an important tool in petroleum exploration and drilling engineering. The float valve

sub is connected at upper part of drill bit. The float valve sub is near the bit connecting thread. The

float valve sub can also be used at different necessary position of drill string when required. The main

application is, when connected with single piece pipe, it prevents mud from coming in and up blocking

the hole. When blowout takes place, blowout in drill string will be avoided because nozzle is closed

automatically by valve cap of the float valve assembly.

Sub OD mm Joint Connection Valve OD mm ID mm

241.3 7-5/8 REG BXB 121 (5F6R) 76.2

228.6 7-5/8 REG BXB 121 (5F6R) 76.2

209.6 6-5/8 REG BXB 121 (5F6R) 71.4

203.2 6-5/8 REG BXB 121 (5F6R) 71.4

177.8 4-1/2 REG B X NC50 B 88 (4R) 71.4

165.1 4-1/2 REG B X NC50 B 88 (4R) 71.4

158.8 4-1/2 REG B X NC46 B 88 (4R) 71.4

127 3-1/2 REG B X NC38 B 61 (2F3R) 50.8

104.8 2-7/8 REG B X NC31 B 48 (1F2R) 38.1

Brazil Office

Zyon Petroleum Consultoria e Representações Ltda Tel: +55 22 2765-4408 Address: Alameda Jequitibá, 90 Granja dos Cavaleiros. Macaé/RJ Post Code:27930-730

China Office

Seven Oceans Habitat Offshore Co.,Limited Tel: 0411-3973 1871 / 3973 1872 / 3973 1873 Fax: 0411-3973 1875

Address: NO.76&78 Hui Xin Street,Gan Jing Zi District, Dalian, China 地址:大连市甘井子区汇信街 76-78号

Post Code:116091

E-mail : [email protected]

Website: www.zyonpetroleum.com

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SECTION II LANDING & DRILL STRING - zyonpetroleum.com