As a driller there are very few calculations you need to know. Rig math in itself is very basic. The problem is that many people are afraid of the answer. This book is design with this in mind and has all the calculations you will need if you run a rig.There are far more expensive book than this with a lot less in them.
Every calculation is laid out in easy to read format with and example laid out to show you what to do.
It uses the algebraic system. Something I found handy when if first started writing my own spreadsheets after spending many years using a HP type calculator( RPN) "I still use one today "to check when a formulary has a lot of brackets.
It is small taking up very little space in you brief case. Metal spiral bound that allows it to lie flat on the desk without the pages flapping back and turning while you are punching the keys of your computer.
Don't be fooled by it simplicity I have seen many engineers referring to it when they needed to referees and many of the basic formulas are used in some of the more complicated calculations.
Summery:
For people that would like an easy to use calculations manual to take to work, I can highly recommend this. It covers almost everything you would need for basic drilling and schools with all the formulas and good working example.
