Drill bit 1

Card Set Information

Author:
gusmonster
ID:
288127
Filename:
Drill bit 1
Updated:
2014-11-04 16:17:38
Tags:
drilliing
Folders:
drilling
Description:
drill bit 1
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user gusmonster on FreezingBlue Flashcards. What would you like to do?


  1. what is a bit
    the tool used to crush/scrape rock. bit selection has a big impact on well cost.
  2. what is shear failure
    occurs by exceeding the shear strength, involves the use of a bit tooth to shear, or cut, the rock into small pieces
  3. what is compressive failure?
    occurs by exceeding the compressive strength, requires that the load placed on the rock exceeds its compressive strength.
  4. Rock failure will occur if?
    • 1. The compressive strength of the rock exceeds the load (WOB)
    • 2. The load is removed before it is transmitted from the bit tooth to the formation (RPM)
  5. What is Mohr theory/criterion
    Failure occurs when shear stress. ζ

What would you like to do?

Home > Flashcards > Print Preview