Formulas and Calculations for Drilling, Production and Workover

Formulas and Calculations for Drilling, Production and Workover, 2nd Edition

Formulas and Calculations for Drilling, Production and Workover, 2nd Edition,Norton J. Lapeyrouse,ISBN9780080506760


Gulf Professional Publishing

9780080506760 New edition


The most complete reference on formulas and calculations for drilling, production, and workover for any engineer in the petroleum industry.

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Key Features

The most complete manual of its kind

New updated material includes conversion tables into metric

Example calculations are provided throughout


The most complete manual of its kind, this handy book gives you all the formulas and calculations you are likely to need in drilling operations. New updated material includes conversion tables into metric. 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 here in one convenient source, including formulas for pressure gradient, specific gravity, pump output, annular velocity, buoyancy factor, volume and stroke, slug weight, drill string design, cementing, depth of washout, bulk density of cuttings, and stuck pipe.


Drilling Engineers, Petroleum Engineers

Norton J. Lapeyrouse

Norton J. Lapeyrouse was a technical training instructor in oilfield courses with international experience. He developed numerous training programs, courses, and manuals designed for supervisory and field personnel. He was a member of the Society of Petroleum Engineers of AIME., the American Society for Teaching and Development, and the IADC. subcommittee of Well Control Trainers Roundtable.

Formulas and Calculations for Drilling, Production and Workover, 2nd Edition


Chapter 1: Basic Formulas

Pressure Gradient
Hydrostatic Pressure
Converting Pressure into Mud Weight
Specific Gravity
Equivalent Circulating Density
Maximum Allowable Mud Weight
Pump Output
Annular Velocity
Capacity Formulas
Control Drilling
Buoyancy Factor
Hydrostatic Pressure Decrease When Pulling Pipe Out of the Hole
Loss of Overbalance Due to Falling Mud Level
Formation Temperature
Hydraulic Horsepower
Drill Pipe/Drill Collar Calculations
Pump Pressure/Pump Stroke Relationship
Cost Per Foot
Temperature Conversion Formulas

Chapter 2: Basic Calculations

Volumes and Strokes
Slug Calculations
Accumulator Capacity
Bulk Density of Cuttings
Drill String Design (Limitations)
Ton-Mile Calculations
Cementing Calculations
Weighted Cement Calculations
Calculations for the Number of Sacks of Cement Required
Calculations for the Number of Feet to Be Cemented
Setting a Balanced Cement Plug
Differential Hydrostatic Pressure Between Cement in the Annulus and Mud Inside the Casing
Hydraulicing Casing
Depth of a Washout
Lost Returns - Loss of Overbalance
Stuck Pipe Calculations
Calculations Required for Spotting Pills
Pressure Required to Break Circulation

Chapter 3: Drilling Fluids

Increase Mud Density
Mixing Fluids of Different Densities
Oil Based Mud Calculations
Solids Analysis
Solids Fractions
Dilution of Mud System
Displacement - Barrels of Water/Slurry Required
Evaluation of Hydrocylone
Evaluation of Centrifuge

Chapter 4: Pressure Control

Kill Sheets and Related Calculations
Prerecorded Information
Kick Analysis
Pressure Analysis
Stripping/Snubbing Calculations
Subsea Considerations
Workover Operations

Chapter 5: Engineering Calculations

Bit Nozzle Selection - Optimized Hydraulics
Hydraulics Analysis
Critical Annular Velocity and Critical Flow Rate
d Exponent
Cuttings Slip Velocity
Surge and Swab Pressures
Equivalent Circulation Density
Fracture Gradient Determination - Surface Application
Directional Drilling Calculations
Miscellaneous Equations and Calculations

Appendix A
Appendix B

Quotes and reviews

The authors statement that, 'this handy book gives you all the formations and calculations you are likely to need drilling operations' is justified due to the completeness and easy use of the information....The entire format has clearly been made with the user in mind... (Applied Mechanics Reviews, Vol. 46 No. 1)
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