Formulas and Calculations for Drilling Operations

James G. Speight

• Publisher: Wiley-Scrivener
• Year: 2018
• ISBN:
  9781119083672
• Edition: 2
• Topic: Technology & Engineering
• Subtopic: Fossil Fuels
• Index: Technology & Engineering

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!

Chapter 1
Standard Formulas and Calculations

1.01 Abrasion Index

The abrasion index (sometimes referred to as the wear index) is a measure of equipment (such as drill bit) wear and deterioration. At first approximation, the wear is proportional to the rate of fuel flow in the third power and the maximum intensity of wear in millimeters) can be expressed:

δpl – maximum intensity of plate wear, mm.

α – abrasion index, mm s³/g h.

η – coefficient, determining the number of probable attacks on the plate surface.

k – concentration of fuel in flow, g/m³.

m – coefficient of wear resistance of metal;

w – velocity of fuel flow, meters/sec.

τ – operation time, hours.

The resistance of materials and structures to abrasion can be measured by a variety of test methods (Table 1.1) which often use a specified abrasive or other controlled means of abrasion. Under the conditions of the test, the results can be reported or can be compared items subjected to similar tests. Theses standardized measurements can be employed to produce two sets of data: ...