AccessoriesAt RDT we have many accessory compo-nents to compliment our lines of tubular goods. We manufacture all our accesso-ries with precision care and a strict adher-ence to all our quality control measures.

Rotary Kelly The Rotary Kelly is one of the most re-lied upon pieces of equipment used on many of the world’s drilling rigs. When it is necessary to transmit the torsinoal energy from the rotary table to the drill-string and then ultimately to the bottom of the hole, this important piece of equip-ment is what would be called upon to perform that function. As a direct result of the mechanical properties of the steel and the specifications to which it is manu-

factured, the Kelly is able to perform this function over a prolonged period of time.

For uniform toughness and durability all Rotary Kellies manufactured by RDT are heat treated along the entire length of the pipe. One of the main features and bene-fits for utilizing an RDT Kelly is that we ma-chine flats and upsets to ensure high tol-erances and a high-quality drive section. This application prolongs the service life of the Kelly drive bushing rollers as well as retard wear on the Kelly itself. At one inch below the surface at room tempera-ture, RDT guarantees a hardness range of 285 to 341 BHN with a Charpy V-notch impact value of 40 ft-lb. All of our Kellies meet the mechanical properties listed in API Spec 7-1 and when applicable can be stamped with the API monogram.

RDT manufactures the Rotary Kelly with one of two basic configurations– Square or Hexagonal.

The Square Kelly is available in three standard lengths:�

• 40 feet (12.2m) overall length with a 37 foot (11.3m) working space• 46 feet (14.0m) overall length with a 43 foot (13.1m) working space• 54 feet (16.5m) overall length with a 51 foot (15.5m) working space

Other sizes are available through special order.

DrillingAccessories

SquareKelly

A

C

D

20"

Bottom upset

with right-handed

connection

Top upsetwith left-handed

connectionA

less 3 ft.

16"

E

GF

Nom.Size

Available Lengths

(A)

Top Upset Bottom UpsetBore

(E)

Drive SectionWt. of 40 ft.

LengthAPI BoxLeft-hand

Conn.

OD(C) Right-hand

Conn.

OD(D)

Across Corners

(F)

Across Flats

(G)

(in.) (ft.) (in.) (in.) (in.) (in.) (in.) (lb.)

3 40, 466 7

NC 31 (2 4 1

2*or 3.875 3

1,080

4 5 980

3 40, 466 7

NC 38 (3 4 2 4.437 3 1,3204 5

4 40, 46, 54 6 7 NC 46 (4 IF) 6 - 6

2 5.500 4 1,820NC 50 (4 6

Specification – Square Kelly

*Not an API standard

Rotary Kelly The Hexagonal Kelly is available in three standard lengths:�

• 40 feet (12.2m) overall length with a 37 foot (11.3m) working space• 46 feet (14.0m) overall length with a 43 foot (13.1m) working space• 54 feet (16.5m) overall length with a 51 foot (15.5m) working space

Nom.Size

Available Lengths

(A)

Top Upset Bottom UpsetBore

(E)

Drive Section Wt. of40 ft.

LengthAPI BoxLeft-hand

Conn.

OD(C) Right-hand

Conn.

OD(D)

Across Corners

(F)

Across Flats

(G)(in.) (ft.) (in.) (in.) (in.) (in.) (in.) (lb.)

3 40, 466 REG. 7

NC 31 (2 IF) 4 2*or1

3.937 3 1,300

4 REG. 5 1,200

4 40, 46 6 REG. 7 NC 38 (3 IF) 4 2 4.781 4 1,740

5 40, 46, 54 6 REG. 7 NC 46 (4 IF) 6 - 6

5.900 5 2,550NC 50 (4 IF) 6 - 6 3

Specification – Hexagon Kelly

HexagonalKelly

A

A less 3 ft.

16"

20"

C

D

Bottom upset

with right-handed

connection

Top upset with left-handed

connection

G

E

F

Other sizes are available through special order.

*Not an API standard

Rotary and Crossover SubsThere are two primary applications for using Rotary Subs. The most common use would be to cross over from one connection size to another. It can also be used as a disposable component for extending the life of more expensive drill stem products. All of our Rotary Subs are available with box x pin, box x box or pin x pin connec-tions. To minimize galling on the initial makeup, all our connections are protected by a phosphate surface coating. When subs are ordered to conform to API specifications, RDT is authorized to apply the API monogram.

RDT offers three different types of Rotary Subs for you to choose from:�

Straight OD SubThis sub is used to connect drill stem components 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 SubThe application for this sub is to connect drill stem components that have different diameters that warrant the cross-sectional change necessary to accommodate different connections. This sub would be used to cross over large OD drilling tools or a tapered drill collar string.

Saver SubThis sub would be used to extend the life of the kelly by taking the connection wear each time it is made up to a drill stem component. The Saver Sub connection is sacrificed because it can be easily repaired or inexpensively replaced. The Saver Sub can be equipped with a rubber protector to reduce BOP equipment and casing wear resulting from contact damage with the lower kelly connection.

36" 36"

Straight OD Subs

Box x box Fig. 1

Box x pin Fig. 2

Pin x pin Fig. 3

48"

Box x box Fig. 4

36"

Pin x box Fig. 5

Box x box Fig. 6

48"

Box x pin Fig. 7

Pin x pin Fig. 8

36"

Box x pin Fig. 9

Box x pin Fig. 10

Saver SubsReduced Section Subs

12"

Specification – Rotary Crossover Subs

Rotary and Crossover Subs

Bit Sub At RDT we offer a complete line of Bit Subs. Bit Subs are manufactured from materials that are heat treated to drill collar specifications. To mini-mize galling on the initial make-up, our connections are protected by a phosphate surface coating. RDT is authorized to apply the API monogram to those Bit Subs ordered that conform to API standards.

Available size ranges: 3-1/8 inch – 11 inch OD26 inches – 48 inches in length

Lift SubA Lift Sub enables the safe, efficient han-dling of straight OD tubulars such as drill collars, shock tools, jars, directional equip-ment and other tools by using the drill pipe elevators.

Top Drive SubTo reduce repair and maintenance costs, the Top Drive Subs serve as the sacrificial element between the drillstring and the top drive. In the event that the lower pin threads become galled or damaged, the Top Drive Sub can easily be repaired or re-placed. We manufacture all our Top Drive Subs from selected bars of alloy steel. Our heat treating process is applied to each of these tools to provide the added strength and toughness required for them to carry the entire weight of the drillstring.

At RDT we offer two different versions of Top Drive Subs, Standard and Premium, enabling us to meet specific criteria’s that are requested by our customers.

18"

36"

OD ID Upper Pin Conn. Size

Lower Pin Conn. Size

Lower Pin Conn.

Tensile Yield Torsional Yield

(in.) (in.) (lbs.) (ft-lbs)

8 4 7 REG. 6 FH 2,296,000 118,000

8 3 7 REG. 5 FH 1,619,000 72,000

8 3 7 REG. NC-50 1,416,000 57,000

8 2 7 REG. NC-46 1,307,000 49,000

8 2 7 REG. NC-38 790,000 24,000

Specification – Top Drive Sub

Top Drive SubLift Sub

Standard Top Drive Sub:• Manufactured to meet/exceed API

Spec 7-1• Manufactured using 4145H alloy steel materialPremium Top Drive Sub:• Manufactured to meet impact values

specified in API Spec 8-A or B-C• Manufactured using double heat treat-

ed 4145H alloy steel material or• To obtain higher impact values manu-

factured from 4330V forged steel or bar and double heat treated

All RDT Top Drive Subs are he at treated to meet or exceed API specifications for drill pipe tool joint mechanical properties. Each tool comes standard with precision machined API connections. Should you require proprietary connections we have licensed vendors to perform that type of machining. All our Top Drive Subs are se-rialized for complete material traceability.

Specialty SubsAs with all our products, RDT continues to come up with innovative ways to meet our

customer’s needs and requirements. This is also true when it comes to manufactur-ing our subs. Within our Specialty Sub category we are able to offer the following:�

• Integral BOP Test Joint – 40’ to 50’ length• Top Drive Locking Subs• IBOP Valves• Integral Pumping Subs• RDT can manufacture any sub at specific customer specifications

Thread ProtectorIn order to protect your investment in tubular goods, RDT always recommends that you use our Thread Protectors to protect both the pin and box connections. This tool should be used not only when your drill stem components are being shipped, but also during storage at the warehouse or on location.

RDT offers four types of thread protectors:

Note: Due to the rough nature in which drill collars are handled, RDT recommends frequent inspection to ensure the bail is not cracked and that proper makeup to the connection is possible.

Features and Benefits

• For complete traceability a unique serial number ispermanently affixed to each protector

• Test date, applied load vs. time, and inspection resultsare also traceable

• Each protector is load tested and certified• NDT inspected for cracks after pull testing

Cast Steel protectors, with lifting bail – These protectors are made from steel castings that meet ASTM specification A216 WCB (36,000 psi minimal yield - 70,000 psi tensile). They are equipped with heavy-duty bails suitable for picking up and laying down a drill collar with the catline. The threads and shoulders of this tool are precision machined.

Pressed Steel light-duty protectors – These protectors are suitable for shipping and storing threaded drill stem components only.

Plastic light-duty protectors – These protectors are suitable for shipping and storing threaded drill stem components only.

Certified Cast Steel Thread Protector – When you want the best protection pos-sible for your tubular goods, RDT recommends our Certified Cast Steel Thread Protectors (CCSTP) with lifting bail. Offering the ultimate in thread protection by including certified lifting capacities, the CCSTP ensures the safe handling of your tubular products during manufacturing, shipping and storage at the rig site. Suitable for picking up and laying down a drill collar with the catline, each tool is manufactured from steel castings with heavy duty lifting bails. Proof tested to 300 percent of the maximum anticipated load, each lifting bail is capable of picking up one drill collar within the recommended diameter for the type and size of the connection on the CCSTP. Continuing our focus on providing a quality product, all the threads and shoulders on these tools are precision machined. Each CCSTP is load tested and inspected prior to sale.

Drilling StabilizersAt RDT we continue to focus on our customer’s needs when it comes to ensuring thequality of the hole being drilled. That is why we offer Drilling Stabilizers that will mechanically stabilize the BHA in the borehole in order to avoid unintentional sidetracking and vibrations. RDT Drilling Stabilizers are designed to increase rate of penetration and control deviation which will reduce your drilling costs per foot.

Our Drilling Stabilizers are composed of a hollow cylindrical body and stabilizing blades, both manufactured from AISI 4145H modified heat-treated steel for a wide variety of configurations and hole sizes. The blades for our Stabilizers can be either straight or spiraled and are hardfaced for wear resistance.

Due to various drilling conditions, RDT offers two different types of Stabilizers for theapplications you may need.

• Integral Blade Stabilizer• Non- Magnetic Stabilizer

Integral Blade StabilizerThe Integral Blade Stabilizer is used in hard formations and has a 3600 surface contact All our Integral Blade Stabilizers are fully machined out of a single piece of steel using precision manufacturing processes. We use a proprietary boring technique that is extremely successful on virtually eliminating peeling. Our Integral Stabilizer insures that the drill string is centralized perfectly in the well bore and increases drilling efficiency with an excellent job of cleaning up the hole. Two main designs are available – spiral blade configuration for maximum wall contact and straight blade for less drag when rotating. Our Integral Blade Stabilizers have longer blades and larger wall contact surface areas and therefore are good for maintaining angle and direction. When angle build is required, they can also be used as a near-bit stabilizer to obtain a good rate of build.

RDT offers several different types of hardfacing options for our Stabilizers. Please contact your RDT representative to review which of our hardfacing options would be the best selection for your specific drilling applications.

Integral Blade Stabilizer

Integral Blade Stabilizers-Dimensional Data

4444455

6666667778888

9999

101112

121314161718

20222426

Hole Size(in)

Fishing Neck(Dia. in)

Bore(Dia. in)

Fishing Neck(Lgth. in)

Overall(Lgth. in)

Blade Width (in)

Min. Crown(Lgth. in)

Approx. Wt.(lbs)

3-

3

4

4

6-

6

7-

7

8-

10

8-

10

1

1

2

2

2

2

2-3

24-

28

30

30

32

28

30

33

65

78

78

85

82

84

93

12

14

14

16

16

16

16-

18

1

2

2

2

2

2

2

150

260

375

625

850 - 915-

985

1150-

1830

1390-

2075

*All of our Stabilizers can be manufactured to meet customer specifications.

Drill Pipe Pup JointsThe Drill Pipe Pup Joint is an important drill stem component for special drilling or testing operations. Pup Joints are used to adjust the height of full length tubing or casing strings. This short drill pipe section is used to locate the top box of the drillstring at a specified distance from the rig floor and to adjust the depth of downhole tools.

RDT’s pup joints are manufactured using round bar from AISI-4145 H Material. Our Pup Joints are available with right or left hand threads. All of our Pup Joints are serialized and you receive documents recording every detail of raw material, testing, manufac-turing processes and quality control measures.

A

D

G

E

CI.D.

F

035

018

Drill PipePup Joints

DRILL

PIPE

NOMI- TOOL CONN. ELEVATOR

NAL JOINT SIZE & UPSET

SIZE I.D.” O.D TYPE DIA BOX PIN

A” C” D” E” F”

3 2 4 N.C.38 3 12 10

5 (3 ½

I.F.)

3 2 4 N.C.38 3 12 10

5 (3 ½

I.F.)

4 2 5 N.C.40 4 12 9

5 (4 F.H.)

4 3 6 N.C.46 4 12 9

6 (4 I.F.)

5 3 6 N.C.50 5 12 9

(4

I.F.)

5 3 6 N.C.50 5 12 9

(4

I.F.)

A VAIL-

ABLE

TOR- TOR- LENG

TENSILE SIONAL TENSILE SIONAL THS APPX.

YIELD YIELD YIELD YIELD WT.

(LB) (FT -LB) (LB) (FT -LB) G’ (LB)

571,000 35,080 675,000 17580 5 142

21600 10 226

15 310

20 394

434,330 29,030 538,400 16,000 5 131

10 198

15 265

20 332

698,900 50,200 652,300 21,550 5 178

10 286

15 394

20 502

836,950 68,850 826,100 30,450 5 219

10 348

15 477

20 6071101,500 98,600 1017700 40,980 5 253

10 423

15 593

20 763

944,950 88,700 861,100 34,200 5 228

10 374

15 520

20 655

TONG MECHANICALPROPERTIES

SPACE TUBE TOOL JOINT

LENGTHS

To place an order or request a quotation on RDT’s Pup Joints, please specify:• Drill Pipe Nominal size / Bore diameter / Tool Joint O.D.• Size and type of connections (Example: N.C.50 box up X N.C. 50 pin down, etc.)• Overall length, shoulder-to-shoulder / 18 degree taper or square shoulder / Pressed or

cast steel thread protectors

Drill Pipe Pup Joints

RDT Inc. PO Box 739022 Vincik Ehlert Beasley, TX 77417

www.rdt-usa.com

Phone 979 387 3223Fax 979 387 3232

©2017 RDT Inc. All rights reserved.