Hole cleaning in 12-1/4" section with PDM BHA

13 April 2015 What is recommended hole cleaning practices for 12-1/4" hole when using  8"PDM with 1.83 AKO maximum book RPM is 60.
Using OBM, drilling section from 40 to deg inc to 90 deg inc with up to 7deg DLS? 
5 Answer(s)

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