WELCOME

INTRODUCTION

TO

DRILLING

DRILLING RIG

DRILLING RIG SITE LAYOUT

INTRODUCTION

DRILLING: It is defined as art & science of making a

hole in an object.

OIL & GAS WELL DRILLING: It is an art & science

of drilling a hole in the earth crust down to a desired

depth in search / extraction of natural gas or

oil(petroleum).

When science is used for the benefit of

mankind, it may take any other shape.

Two such forms are

1. ENGINEERING

2. TECHNOLOGY

ENGINEERING

Engineering is the science of

machines. It is primarily connected with

analysis of mechanisms involved,

design, construction, operation and

maintenance of the machines.

So Drilling Engineering is the science

of machines which are involved in drilling a

petroleum well or simply a well.

TECHNOLOGY

It is basically the science of Methods .

When methods are standardized we call

them Techniques. When techniques are

used for commercial purpose, we call

them Technologies.

So Drilling Technology is the science of

standard methods or techniques which are

used / employed for drilling an oil or gas

well(commercial purpose).

DRILLING SYSTEMS

Oil well drilling engineering may easily be divided

into following drilling systems. A system is a sum or

group of various machines, equipments &

instruments etc.

Rig System

Power System

Mud Handling / Circulatory System

Hoisting System

Rotary System

Well Control System

Instrumentation System

Auxillary System

RIG SYSTEM

Generic word used in two ways:-

A plant / unit for drilling a hole in the ground.

OR

A machinery system which is used to make a hole in

the ground.

OR

A system which is composed (made) of various

mechanical & electrical sub systems / equipments for

drilling a hole into the ground.

A tower type structure erected to make a hole / bore

in the ground.

Parts:

Bottom box

Under structure

Rig / Derrick floor

Mast

POWER SYSTEM

Diesel Engines, Alternators, Bus Bar, PCRS (SCR

unit), Cables, Motors, Switches, Regulators (for

speed control).

MUD HANDLING SYSTEM

Super Charger, Mud Pumps, Pipes (HP line, stand

pipe & H manifold), Rotary Hose, Flow Nipple, Flow

Line, Shale Shaker, De Sander, De Silter , Mud

Cleaner, Mud Tanks and Agitators etc.

HOISTING SYSTEM

Draw Works, crown block, travelling block and

drilling line or casing line etc.

ROTARY SYSTEM

Swivel, Rotary Table, Kelly, Kelly bushing, Drill

Stem ( drill pipe, drill collar, stabilizers, different

substitute), Bit etc.

WELL CONTROL SYSTEM

Well Head, D / Spool, Spacer Spool, K / Line, C /

Line, Ram Bop, A / Bop, Gas Buster, Accumulator

Unit, Hydraulic Lines.

INSTRUMENTATION SYSTEM

Measuring Instruments Pressure Gauges, SPM

Gauge, R.P.M Gauge, Torque Gauge, Weight

Indicator, MVT (Mud Volume Totalizer), Ton Mile

Indicator, Recorder, Cables, etc.

AUXILLARY SYSTEM

AC Lighting system, Air Supply / Pneumatic System

( Compressor, lines, Receiver), Water Supply System,

Tool Tackles, etc.

DRILLING TECHNOLOGY

It is a science of standard methods or techniques which

are used / employed for drilling an oil or gas well.

DRILLING TECHNOLOGIES

Mud

Casing

Rig

Hydraulics

Bit

Drilling

Cementing

Special (Directional, Complications, Fishing etc.)

Well Control

DRILLING OPERATIONS

Operations involved in drilling a well are :

Rig Building

Spudding-In of the Well

Drilling (1st, 2nd, 3rd Phase)

Logging

Casing Lowering

Cementing

Well Head Fitting & Testing

BOP Fitting & Testing

Fishing & Complication Operation

Hermetical Testing

THANK YOU !