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| isbn = 0891816607
| isbn = 0891816607
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Drilling problems include any difficulties encountered while drilling a well. The most common drilling problems are the creation of doglegs and key seats, hole instability, lost circulation, and excessive bottom hole temperatures.
Drilling problems include any difficulties encountered while [[drilling a well]]. The most common drilling problems are the creation of doglegs and key seats, hole instability, lost circulation, and excessive bottom hole temperatures.
==Doglegs==
==Doglegs==