Formulas and Calculations for Drilling Operations - James G. Speight - E-Book

Formulas and Calculations for Drilling Operations E-Book

James G. Speight

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Beschreibung

Newly revised, this is still the "must have" guide for any drilling, production, or petroleum engineer, with thousands of handy formulas and calculations that the engineer needs on a daily basis. Presented in an easy-to-use format, this second edition of Formulas and Calculations for Drilling Operations is a quick reference for day-to-day work out on the rig. It also serves as a handy study guide for drilling and well control certification courses. Virtually all the mathematics required on a drilling rig is here in one convenient source, including formulas for pressure gradient, specific gravity, pump, output, annular velocity, buoyancy factor, and many other topics. Whether open on your desk, on the hood of your truck at the well, or on an offshore platform, this is the only book available that covers the gamut of the formulas and calculations for petroleum engineers that have been compiled over decades. Some of these formulas and calculations have been used for decades, while others are meant to help guide the engineer through some of the more recent breakthroughs in the industry's technology, such as hydraulic fracturing and enhanced oil recovery. There is no other source for these useful formulas and calculations that is this thorough. An instant classic when the first edition was published, the much-improved revision is even better, offering new information not available in the first edition, making it as up-to-date as possible in book form. Truly a state-of-the-art masterpiece for the oil and gas industry, if there is only one book you buy to help you do your job, this is it!

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Veröffentlichungsjahr: 2018

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Contents

Cover

Title page

Copyright page

Preface

Chapter 1: Standard Formulas and Calculations

1.01 Abrasion Index

1.02 Acid Number

1.03 Acidity and Alkalinity

1.04 Annular Velocity

1.05 Antoine Equation

1.06 API Gravity – Kilograms per Liter/Pounds per Gallon

1.07 Barrel – Conversion to other Units.

1.08 Bernoulli’s Principle

1.09 Brine

1.10 Bubble Point and Bubble Point Pressure

1.11 Buoyancy, Buoyed Weight, and Buoyancy Factor

1.12 Capacity

1.13 Capillary Number

1.14 Capillary Pressure

1.15 Cementation Value

1.16 Composite Materials

1.17 Compressibility

1.18 Darcy’s Law

1.19 Dew Point Temperature and Pressure

1.20 Displacement

1.21 Effective Weight

1.22 Flow Through Permeable Media

1.23 Flow Through Porous Media

1.24 Flow Velocity

1.25 Fluid Saturation

1.26 Formation Volume Factor – Gas

1.27 Formation Volume Factor – Oil

1.28 Friction

1.29 Gas Deviation Factor

1.30 Gas Solubility

1.31 Gas-Oil Ratio

1.32 Geothermal Gradient

1.33 Hole Capacity

1.34 Horsepower

1.35 Hydrostatic Pressure

1.36 Isothermal Compressibility of Oil

1.37 Marx-Langenheim Model

1.38 Material Balance

1.39 Modulus of Elasticity

1.40 Oil and Gas Originally in Place

1.41 Oil Recovery Factor

1.42 Permeability

1.43 Poisson’s Ratio

1.44 Porosity

1.45 Pressure Differentials

1.46 Productivity Index

1.47 PVT Properties

1.48 Reserves Estimation

1.49 Reservoir Pressure

1.50 Resource Estimation

1.51 Reynold’s Number

1.52 Saturated Steam

1.53 Standard Oilfield Measurements

1.54 Twist

1.55 Ultimate Tensile Strength

1.56 Volume Flow Rate

1.57 Volumetric Factors

1.58 Yield Point

Chapter 2: RIG Equipment

2.01 API Casing Grades

2.02 Block Efficiency Factor

2.03 Blocks and Drilling Line

2.04 Crown Block Capacity

2.05 Derrick Load

2.06 Energy Transfer

2.07 Engine Efficiency

2.08 Line Pull Efficiency Factor

2.09 Mud Pump

2.10 Offshore Vessels

2.11 Rotary Power

2.12 Ton-Miles Calculations

Chapter 3: Well Path Design

3.01 Average Curvature-Average Dogleg Severity

3.02 Bending Angle

3.03 Borehole Curvature

3.04 Borehole Torsion

3.05 Horizontal Displacement

3.06 Magnetic Reference and Interference

3.07 Tool Face Angle

3.08 Tool Face Angle Change

3.09 Tortuosity

3.10 Types of Wellpath Designs

3.11 Vertical and Horizontal Curvatures

3.12 Wellbore Trajectory Uncertainty

3.13 Wellpath Length Calculations

Chapter 4: Fluids

4.01 Acidity-Alkalinity

4.02 Base Fluid–Water-Oil Ratios

4.03 Common Weighting Materials

4.04 Diluting Mud

4.05 Drilling Fluid Composition

4.06 Equivalent Mud Weight

4.07 Fluid Loss

4.08 Marsh Funnel

4.09 Mud Rheology

4.10 Mud Weighting

4.11 Plastic Viscosity, Yield Point, and Zero-Sec Gel

4.12 Reynolds Number and Critical Velocity

4.13 Slip Velocity

Chapter 5: Hydraulics

5.01 Basic Calculations

5.02 Bingham Plastic Model

5.03 Bit Hydraulics

5.04 Critical Transport Fluid Velocity

5.05 Equivalent Circulating Density

5.06 Equivalent Mud Weight

5.07 Gel Breaking Pressure

5.08 Hole Cleaning – Cuttings Transport

Chapter 6: Tubular Mechanics

6.01 API Casing and Liners – Weight, Dimensions, Capacity, and Displacement

6.02 API Drill Pipe Capacity and Displacement

6.03 Bending Stress Ratio

6.04 Buckling Force

6.05 Drag Force

6.06 Drill Collar Length

6.07 Fatigue Ratio

6.08 Length Change Calculations

6.09 Maximum Permissible Dogleg

6.10 Pipe Wall Thickness and other Dimensions

6.11 Slip Crushing

6.12 Stress

6.13 Tension

6.14 Torque

Chapter 7: Drilling Tools

7.01 Backoff Calculations

7.02 Downhole Turbine

7.03 Jar Calculations

7.04 Overpull/Slack-off Calculations

7.05 Percussion Hammer

7.06 Positive Displacement Motor (PDM)

7.07 Rotor Nozzle Sizing

7.08 Stretch Calculations

Chapter 8: Pore Pressure and Fracture Gradient

8.01 Formation Pressure

8.02 Leak-off Pressure

Chapter 9: Well Control

9.01 Accumulators

9.02 Driller’s Method

9.03 Formulas Used in Kick and Kill Procedures

9.04 Hydrostatic Pressure Due to the Gas Column

9.05 Kill Methods

9.06 Kill Mud Weight

9.07 Leak-off Pressure

9.08 Length and Density of the Kick

9.09 Maximum Allowable Annular Surface Pressure

9.10 Riser Margin

Chapter 10: Drilling Problems

10.01 Differential Sticking Force

10.02 Hole Cleaning–Slip Velocity Calculations

10.03 Increased Equivalent Circulating Density (ECD) Due to Cuttings

10.04 Keyseating

10.05 Lost Circulation

10.06 Common Minerals and Metals Encountered During Drilling Operations

10.07 Mud Weight Increase Due to Cuttings

10.08 Pressure Loss in the Drill String

10.09 Spotting Fluid Requirements

Chapter 11: Cementing

11.01 API Classification of Cement

11.02 Cement: Physical Properties of Additives

11.03 Cement Plug

11.04 Cement Slurry Requirements

11.05 Contact Time

11.06 Gas Migration Potential

11.07 Hydrostatic Pressure Reduction

11.08 Portland Cement – Typical Components

11.09 Slurry Density

11.10 Yield of Cement

Chapter 12: Well Cost

12.01 Drilling Cost

12.02 Expected Value

12.03 Future Value

12.04 Price Elasticity

Chapter 13: Appendices

Glossary

Bibliography and Information Sources

About the Author

Index

End User License Agreement

Guide

Cover

Copyright

Contents

Begin Reading

List of Illustrations

Chapter 1

Figure 1.1

Relationship of Bubble Point to Dew Point.

Figure 1.2

Schematic of the Marx-Langenheim Temperature Profile.

Chapter 2

Figure 2.1

Energy Transfer.

Figure 2.2

Schematic of an Offshore Vessel.

Figure 2.3

Vessel Motion.

Figure 2.4

Vessel Draft and Freeboard.

Figure 2.5

Environmental Forces that Influence Offshore Vessels.

Chapter 4

Figure 4.1

Shear Rate-Shear Stress Relationship of Time Independent Non-Newtonian Fluids.

Figure 4.2

Shear Rate-Shear Stress Relationship of Non-Newtonian Fluids.

Figure 4.3

Shear Rate-Shear Stress Relationship of a Power Law Fluid Using the Logarithmic Scale.

List of Tables

Chapter 1

Table 1.1

Examples of Selected ASTM Standard Test Method for Determining Abrasion*.

Table 1.2

Ranges of Acidity and Alkalinity.

Table 1.3

Example of the Antoine Constants.

Table 1.4

API Gravity Conversion to Kilograms per Liter/Pounds per Gallon

Table 1.5

API Gravity and Sulfur Content of Selected Heavy Oils.

Table 1.6

API Gravity at Observed Temperature Versus API Gravity at 60 °F

Table 1.7

Selected Crude Oils Showing the Differences in API Gravity and Sulfur Content Within a Country.

Table 1.8

API Gravity and Sulfur Content of Selected Heavy Oils and Tar Sand Bitumen.

Table 1.9

Water Salinity Based on Dissolved Salts (parts per thousand).

Table 1.10

Lithology and Cementation Values.

Table 1.11

Symbols used in Determining the Compressibility Factor.

Table 1.12

Definition of the various symbols.

Table 1.13

Commonly Used Variables in Material Balance Equations.

Table 1.14

Permeability of Different Systems.

Table 1.15

The modulus of elasticity, the shear modulus, and Poisson’s ratio for common metals at room temperature.

Table 1.16

API pipe properties.

Chapter 2

Table 2.1

API Casing Grades.

Table 2.2

Effect of the number of Lines on Efficiency.

Table 2.2

Shape Coefficients.

Table 2.3

Height Coefficients.

Chapter 4

Table 4.1

Ranges of Acidity and Alkalinity.

Table 4.2

Common Weighting Materials.

Table 4.3

Micron sizes.

Table 4.4

Micron Cut Points for Solid Removal Systems.

Chapter 6

Table 6.1

Dimensions for Schedule 10, 40, 80 Pipes

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Scrivener Publishing100 Cummings Center, Suite 541JBeverly, MA 01915-6106

Publishers at ScrivenerMartin Scrivener ([email protected])Phillip Carmical ([email protected])

Formulas and Calculations for Drilling Operations Second Edition

 

James G. Speight

 

 

 

 

This edition first published 2018 by John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, USA and Scrivener Publishing LLC, 100 Cummings Center, Suite 541J, Beverly, MA 01915, USA© 2018 Scrivener Publishing LLCFor more information about Scrivener publications please visit www.scrivenerpublishing.com.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, except as permitted by law. Advice on how to obtain permission to reuse material from this title is available at http://www.wiley.com/go/permissions.

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For details of our global editorial offices, customer services, and more information about Wiley products visit us at www.wiley.com.

Limit of Liability/Disclaimer of WarrantyWhile the publisher and authors have used their best efforts in preparing this work, they make no representations or warranties with respect to the accuracy or completeness of the contents of this work and specifically disclaim all warranties, including without limitation any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives, written sales materials, or promotional statements for this work. The fact that an organization, website, or product is referred to in this work as a citation and/or potential source of further information does not mean that the publisher and authors endorse the information or services the organization, website, or product may provide or recommendations it may make. This work is sold with the understanding that the publisher is not engaged in rendering professional services. The advice and strategies contained herein may not be suitable for your situation. You should consult with a specialist where appropriate. Neither the publisher nor authors shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages. Further, readers should be aware that websites listed in this work may have changed or disappeared between when this work was written and when it is read.

Library of Congress Cataloging-in-Publication Data

ISBN 978-1-119-08362-7

Preface

Drilling engineers design and implement procedures to drill wells as safely and economically as possible. Drilling engineers are often degreed as petroleum engineers, although they may come from other technical disciplines (such as mechanical engineering, geology, or chemical engineering) and subsequently be trained by an oil and gas company. The drilling engineering also may have practical experience as a rig hand or mud-logger or mud engineer.

The drilling engineer, whatever his/her educational background, must work closely with the drilling contractor, service contractors, and compliance personnel, as well as with geologists, chemists, and other technical specialists. The drilling engineer has the responsibility for ensuring that costs are minimized while getting information to evaluate the formations penetrated, protecting the health and safety of workers and other personnel, and protecting the environment. Furthermore, to accomplish the task associated with well drilling and crude oil (or natural gas production) it is essential that the drilling engineers has a convenient source of references to definitions, formulas and examples of calculations.

This Second Edition continues as an introductory test for drilling engineers, students, lecturers, teachers, software programmers, testers, and researchers. The intent is to provide basic equations and formulas with the calculations for downhole drilling. In addition, where helpful, example calculations are included to show how the formula can be employed to provide meaningful data for the drilling engineer.

The book will provide a guide to exploring and explaining the various aspects of drilling engineering and will continue to serve as a tutorial guide for students, lecturers, and teachers as a solution manual and is a source for solving problems for drilling engineers.

For those users who require more details of the various terms and/or explanation of the terminology, the book also contain a comprehensive bibliography and a Glossary for those readers/users who require an explanation of the various terms. There is also an Appendix that contains valuable data in a variety of tabular forms that the user will find useful when converting the various units used by the drilling engineer.

Dr. James Speight,Laramie, Wyoming.January 2018.