directional drilling & · pdf filecourse overview aims & objectives directional...

C o n t a c t U s f o r S p e c i a l C o r p o r a t e R a t e N o w !

DIRECTIONAL DRILLING

& SURVEYING

Course Overview

Aims & Objectives

Directional Drilling is one of the most fascinating subject areas in the oilfield – with high tech tools able to

drill into the smallest of targets great distances from the rig.

The course learning outcomes are:-

To enable delegates to understand why points on the Earth (e.g. Geographic North, Magnetic North,

Latitude & Longitude, UTM co-ordinates) have been referenced as they have;

To enable delegates to understand why certain survey tools reference certain points of reference (e.g.

magnetic tools / MWD, gyroscopic tools, inertial navigational tools etc.) and how positional calculations

are carried out;

To e a le delegates to k o hat goes o i side la k o soft are sur e progra s; To learn why – and how – directional wells are designed as they are: Vertical, KOP, Tangential Section,

Horizontal & Multi-lateral;

The tools used for directional, horizontal and multi-lateral drilli g a d ho the are used, e.g. PDM s, turbines, rotary steerable systems, whip-stocks etc.;

How the Directional Drillers & MWD Engineers drill from the vertical to the target(s) selected by the

Operators su -surface groups. Tool Face, High Side, Inclination, Azimuth, Measured Depth & TVD.

The following media are used during the course:-

1) Lectures (the Trainer began his career 35 years ago as a Drilling Engineer and has designed and been

involved with hundreds of directional wells worldwide on land rigs, jack-ups, platforms and semi-

submersibles);

2) PowerPoints (written by the Trainer);

3) Videos & Digital Film

4) Calculations & Manuals

The aims and objectives of the course are for delegates to understand how directional wells are planned

and how the tools used work. We will also go through Minimum Radius of Curvature Programs to

establish wellbore positional uncertainty.

Provision is also made for delegates to discuss any directional aspect of their up-coming wells which are

perti e t to their e plo er s proje ts i order to attai su ess ot just first ti e – but every time.

Who Should Attend

IDEAS CREATE DRILLING SOLUTIONS

visit us at www.wellideas.com

DIRECTIONAL DRILLING & SURVEYING

Drilling Engineers, Senior Drilling Engineers, Offshore Drilling Engineers, Drilling Supervisors, Drilling

Superintendents, Drillers, Toolpushers, Service Personnel

Your Dedicated Coach

Overview

“easo ed professio al ith 5 ears orld ide experience on drill-ships, semi-submersibles, tender-assist

units, platforms, jack-ups and land rigs.

Extensive experience both onshore and offshore in

engineering and operations for Operators and Drilling

Contractors on exploration, appraisal & development

wells.

Extensive risk assessment, advisory, planning and rig-site

work experience ranging from Drilling Engineer through to

Drilling Supervisor, Superintendent & Drilling Manager.

Training

Training experience worldwide ranges across

Operators, Drilling Contractors and Service

Companies both in-house and public in the

following areas :-

HPHT

Stuck Pipe Prevention & Fishing

Deepwater Well Engineering

Deepwater Operations

Directional Drilling

Horizontal & Multilateral Wells

Accelerated Drilling Programmes for Drilling

Contractors

Graduate Drilling Engineering for Operators

Optimised Drilling Practices

Well Planning & Engineering

Well Construction

Well Control (Advanced, Understanding,

Deepwater & HPHT)

Consultancy

Engineering & Operations Advisor to

Operators, Drilling Contractors, Banks &

Insurance Companies worldwide re Drilling &

Field Development, Risk & Blowouts

Hazard Analysis

Offshore Operations

Technical Advisor for HPHT

Developments

Well Control

Technical Advisor for Deepwater

Operations

Project

Project Manager for HPHT Field

Development; Standard Field

Development

Production Optimisation

Risk Mitigation

Brownfield Re-development

Deepwater

Well Control

Management Systems



Michael Gibson (PhD)




DAY ONE

THE EARTH

.

The Earth’s Magnetic North Pole is in North East Canada and Varies in Position

SURVEYING

During this introductory session you will gain an understanding

of why we survey oil and gas wells, how we reference various

points on the Earth and variations – such as magnetic variations

for example. We will cover the following subject areas:-

Why Survey?

Models of the Earth

The Geoid

The Spheroid

Grid Systems

Universal Transverse Mercator Grid (UTM)

Lambert Conformal Conic Projection

Other Grids

Magnetic Declination

Mapping Grids

SURVEYING TOOLS

There are a variety of surveying tools for a variety of purposes,

and in some parts of the world (e.g. on low day-rate land rigs for

example) old Tot o s, Single Shots and Steering Tools are still run.

At the other end of the spectrum, very high accuracy inertial

navigation systems are run, similar in spatial accuracy to modern

day aircraft systems. In this section we will cover the following

subject areas:-

Tool Selection Factors

Magnetic Tools

Photographic Magnetic Survey Tools

Magnetic Single Shot

Magnetic Single Shot Reading 5 ½ Deg. Inclination

South 36 West Azimuth (Raw)

Magnetic Drop Type Survey

Magnetic Multi-Shot

Magnetic Multi-shot (R) run in Non Magnetic Drill Collars (L)

Electronic Magnetic Multi-shots (EMS)

Gyroscopic Survey Tools

Gyroscopic Single Shots

Gyroscopic Multi-shots

Surface Read-Out Gyro

Ring Laser Inertial Guidance System (RIGS)

MWD Systems

Magnetic Interference

Lines of Magnetic Flux Vary in Intensity Around the Globe


DAY TWO

METHODS OF SURVEY CALCULATIONS

In this section we will review the following:-

Tangential Method

Average Angle Method

Radius of Curvature Method

Minimum Radius of Curvature Method

Survey Uncertainty



Radius of Curvature Method, Courtesy of DrillingFormulas.Com

DIRECTIONAL DRILLING


Why Drill Directionally?

Principle of the Turbine: Rotor & Stator (L). Blades & Cutters

of a Turbine Drill Bit (R)

Positive Displacement Motors

Bit Tilt

Reactive Torque

Stabiliser Size & Placement

Slide Drilling

Directional Drilling Maximises Oil Production Positive Displacement Mud Motor Showing Rotor, Bearing

Pack & PDC Drill Bit

Deflection Techniques

Whipstocks

Jetting

‘otar BHA s Motors, Bent Subs & Tool Face

Turbines, Bent Subs & Tool Face

Rotary Steerable Systems

Directional Control with Rotary Systems

Gauge and Placement of Stabilisers

Diameter of Drill Collars

Bit Type

Formation Anisotropy

Formation Hardness

Directional Control with Downhole Motors

Turbines

Objective: Rejuvenate oil production- extending field life

Original Gas Cap

Encroaching Aquifer

Oil Rim

2005: LCD Phase 1 wells

Redundant Production

well

LCD well6-7mmGBP2 year life

OGOC

Objective: Rejuvenate oil

production- extending field life

Accessing 1-2mmbbl

10-20m thick

LCD well

Directional Drilling Also Extends Field Life


DAY THREE



TYPICAL BOTTOM HOLE ASSEMBLIES


Rotary Assemblies

BHA for Holding

BHA for Building

BHA for Dropping

Steerable Assemblies with Positive Displacement Mud Motor

BHA for 7 ½ Hole – Holding Tendency in Rotary

BHA for 7 ½ Hole – Build Tendency in Rotary

BHA for ¼ Hole – Holding Tendency in Rotary

BHA for ¼ Hole – Build Tendency in Rotary

Geo-Steering Assemblies with MWD / LWD

Rotary Steerable Assemblies

The Geo-Pilot Rotary Steerable System with Flexible Shaft

Courtesy of Sperry-Sun / Halliburton

Poor Hole Cleaning is Exacerbated on High Angle Wells

HIGH ANGLE DRILLING

In this section we will review the difficulties associated

with the drilling of high angle wells, namely:-

Torque

Drag

Overpull

Poor Hole Cleaning

Casing Wear

The Pros and Cons of Using Casing Wear Protectors

Dog-legs (including ideal maximum Dog-leg Severity) &

Reaming

Ledges & Reaming

Hole Collapse

The problems of Drill Pipe / Tool Joint wear

The problems of certain types of hard-banding

The drill-string in alternating compression, tension and

torsion

Friction factors

The problems associated with lost circulation

MWD / LWD

Surveying

Ledges at formation changes in a Directional Well

Rock Mechanics Understanding is Essential for Cost

Effective Directional Drilling


DAY FOUR & FIVE



MULTI-LATERALS

Multi-laterals have the capacity to radically increase

produ tio fro the reser oir, fro the o e other ore , at relatively low cost per barrel. During this section we will

cover the six types of multi-lateral wells per the Technical

Advancement of Multilaterals (TAML) Code of Practice.

Level 1: Open, Unsupported Junction

Level 2: Cased & Cemented Main Bore / Open Hole

Lateral / Lateral Liner Unsupported

Level 3: Cased & Cemented Main Bore / Lateral Cased

but not Cemented

Level 4: Cased & Cemented Main Bore / Lateral Cased &

Cemented

Level 5: Cased & Cemented Main Bore & Lateral /

Pressure Isolation Achieved with completion Equipment

Level 6: Pressure Integrity at the Junction Achieved with

the Casing

HORIZONTAL DRILLING

In this section we will review the advantages of horizontal drilling

and the traditional difficulties associated with the drilling of these

wells:-

Advantages of Horizontal Wells

Increased Reservoir Exposure

Improved Oil Production Over a Longer Period of Time

Decreased Water Coning

Horizontal Drilling Through the Reservoir Maximises Oil

Production

Decreased Gas Coning

How Horizontal Wells are Drilled

Pilot Holes and Geometric Drilling

Geo-steering

Rotary Steerable Assemblies

High Build & Turn Rate Rotary Steerable System (Courtesy of

IADC / SPE)

Motors & Drilling in Sliding / Rotary Mode

Torque

Drag

Overpull

Hole Cleaning

First Multi-lateral Well in the Middle East Courtesy of OGJ

Q & A

This session allows the course delegates the

opportunity to go into any aspect of the course or

their up-coming wells.

IDEAS (Independent Drilling Engineering

AssociateS) is a thinking company. It focuses its

in-depth and holistic knowledge, breadth of

experience and expertise onto operators, drilling

contractors and service o pa ies drilling

engineering and related work requirements, to

provide top quality fast turnaround bespoke work

packages on either an ad-hoc or long term basis,

24 hrs per day / 365 days per year, worldwide.

Through applying creative thought, ingenuity,

experience, integrative life-cycle considerations,

fully focused dedication and commitment to

problem-solving, IDEAS aim to provide the most

professional, solution-oriented, cost-effective

drilling engineering and related services

anywhere around the world at any time.

Objectively.

Independently.

Quickly.

Independent Drilling Engineering AssociateS

IDEAS CREATE SOLUTIONS


Contact us today for In-House Drilling

Solutions to maximise safety, efficiency,

performance, productivity & minimise cost!

For more information, please email us at

[email protected]

Contact Deta i l s

I am interested to register for Directional Drilling & “urveying

I would like to contact IDEAS for In-House Training Solutions

Other enquiry

Name :

Job Title :

Company :

Department :

Mobile / DID :

Email :

Independent Drilling Engineering

Associates Singapore

18 Sin Ming Lane

#08-26 Midview City

Singapore 573960

Tel: +65 6659 0272

Email: [email protected]

Website: www.wellideas.com

I would like to contact IDEAS for In-House Consultancy Solutions

IDEAS CREATE SOLUTIONS


Independent Drilling Engineering

Associates Scotland

1 Mill Court

Gourdon Montrose DD10 0NL

Scotland, United Kingdom

Tel: +44 1561 360358

Email: [email protected]

Website: www.wellideas.com

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