Method of drilling a productive bed

Details Method of drilling a productive bed Method of drilling a productive bed

E - Fixed Constructions

21

B

166/26

E21B 43/00 (2006.01)

Patent

CA 1164791

-17- ABSTRACT OF THE DISCLOSURE The present invention relates to the completion of wells and, more particularly, it relates to a method of drilling a productive bed. The herein disclosed method of drilling a productive bed comprises the tapping of the bed root using a starting flushing fluid and the determination of the redox potential value at the moment of tapping the bed roof, with subse- quent replacement of the starting flushing fluid with a fluid having redox potential value and sign equal to those of the productive bed rock.

362038

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