Formulas and calculations for drilling, production, and workover

Title:

Personal Author:

Lapeyrouse, Norton J.

Publication Information:

Houston : Gulf Pub. Co., c1992.

Physical Description:

viii, 216 p. : ill. ; 21 cm.

ISBN:

9780884150114

General Note:

Subtitle on cover: All the formulas you need to solve drilling and production problems.

Subject Term:

Oil wells -- Management -- Mathematics

Available:*

Library	Item Barcode	Call Number	Material Type	Item Category 1	Status
Searching... PSZ JB	30000002689242	TN871.L26 1992	Open Access Book	Book	Searching... Unknown

This handy book gives you all the formulas and calculations you are likely to need in drilling operations. It is the most complete manual of its kind. Included are formulas for pressure gradient, specific gravity, pump output, annular velocity, and buoyancy factor. In addition, there are calculations for volume and stroke, slug weight, drill string design, cementing, depth of washout, bulk density of cuttings, and stuck pipe. Separate chapters deal with calculations for drilling fluids, pressure control, and engineering. Example calculations are provided throughout. Presented in easy-to-use, step-by-step order, Formulas and Calculations 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 out on the drilling rig is included here in one convenient source.

Author Notes

Norton J. Lapeyrouse is a technical training instructor in oilfield courses with international experience. He has developed numerous training programs, courses, and manuals for supervisory and field personnel. He is currently employed by Randy Smith Training Solutions

Preface	p. vii
1 Basic Formulas	p. 1
Pressure Gradient	p. 1
Hydrostatic pressure	p. 3
Converting Pressure into Mud Weight	p. 4
Specific Gravity	p. 5
Equivalent Circulating Density	p. 6
Maximum Allowable Mud Weight	p. 7
Pump Output	p. 7
Annular Velocity	p. 9
Capacity Formulas	p. 12
Control Drilling	p. 19
Buoyancy Factor	p. 20
Hydrostatic Pressure Decrease When Pulling Pipe out of the Hole	p. 20
Loss of Overbalance Due to Falling Mud Level	p. 22
Formation Temperature	p. 24
Hydraulic Horsepower	p. 25
Drill Pipe/Drill Collar Calculations	p. 25
Pump Pressure/Pump Stroke Relationship	p. 27
Cost per Foot	p. 28
Temperature Conversion Formulas	p. 29
2 Basic Calculations	p. 31
Volumes and Strokes	p. 31
Slug Calculations	p. 33
Accumulator Capacity	p. 37
Bulk Density of Cuttings	p. 41
Drill String Design (Limitations)	p. 42
Ton-Mile Calculations	p. 44
Cementing Calculations	p. 47
Weighted Cement Calculations	p. 53
Calculations for the Number of Sacks of Cement Required	p. 54
Calculations for the Number of Feet to Be Cemented	p. 57
Setting a Balanced Cement Plug	p. 61
Differential Hydrostatic Pressure Between Cement in the Annulus and Mud Inside the Casing	p. 65
Hydraulicing Casing	p. 66
Depth of a Washout	p. 70
Lost Returns--Loss of Overbalance	p. 71
Stuck Pipe Calculations	p. 72
Calculations Required for Spotting Pills	p. 75
Pressure Required to Break Circulation	p. 79
3 Drilling Fluids	p. 81
Increase Mud Density	p. 81
Dilution	p. 85
Mixing Fluids of Different Densities	p. 86
Oil-Based Mud Calculations	p. 87
Solids Analysis	p. 91
Solids Fractions	p. 95
Dilution of Mud System	p. 96
Displacement--Barrels of Water/Slurry Required	p. 97
Evaluation of Hydrocyclone	p. 97
Evaluation of Centrifuge	p. 99
4 Pressure Control	p. 103
Kill Sheets and Related Calculations	p. 103
Prerecorded Information	p. 115
Kick Analysis	p. 124
Pressure Analysis	p. 137
Stripping/Snubbing Calculations	p. 139
Subsea Considerations	p. 144
Workover Operations	p. 153
Controlling Gas Migration	p. 157
Gas Lubrication	p. 159
Annular Stripping Procedures	p. 161
5 Engineering Calculations	p. 165
Bit Nozzle Selection--Optimized Hydraulics	p. 165
Hydraulics Analysis	p. 169
Critical Annular Velocity and Critical Flow Rate	p. 173
"d" Exponent	p. 174
Cuttings Slip Velocity	p. 175
Surge and Swab Pressures	p. 179
Equivalent Circulation Density	p. 187
Fracture Gradient Determination--Surface Application	p. 190
Fracture Gradient Determination--Subsea Application	p. 194
Directional Drilling Calculations	p. 197
Miscellaneous Equations and Calculations	p. 203
Appendix A	p. 209
Appendix B	p. 217
Index	p. 221

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Summary

Summary

Author Notes

Table of Contents