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What is the optimum preventive actions against key seat while drilling?

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Question added by Samir Bouchentouf , Drill Bits Sales & Marketing Account Manager , Baker Hughes EHO Ltd
Date Posted: 2018/04/22
Ragim Hankishiyev
by Ragim Hankishiyev , DRILLING FLUIDS CONSULTANT , Consultant agency

My dear colleague,

Some general preventive actions for key seat while drilling are as follows:

1/ run wiper trips or short trips more frequently or at least 6-8 stands.

2/ avoid drilling with high dog leg severity (if you need to deviate the wellbore trajectory, then use longer build up radius)

3/ back ream when pulling out of hole

Good luck,

Ragim

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