A method for determining equivalent static mud density...

Details A method for determining equivalent static mud density... A method for determining equivalent static mud density...

E - Fixed Constructions

21

B

E21B 47/06 (2006.01)

Patent

CA 2298859

The present invention presents a method that effectively provides the near real-time advantage of annular pressure while drilling (APWD) measurements taken during pipe connections that require the mud circulation pumps to be turned off (a "pumps-off" condition). APWD data, such as pressure measurements, are obtained from instruments and related electronics within the bottom-hole assembly (BHA). APWD data can be measured, stored and even processed in the BHA during a pumps- off condition for subsequent processing or communication of a reduced amount of data to the driller at the surface.

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