Dynamic annular pressure control apparatus and method

Details Dynamic annular pressure control apparatus and method Dynamic annular pressure control apparatus and method

2005-06-14

2005-06-14

Tsay, Frank (Department: 3672)

Boring or penetrating the earth

Processes

Boring with specific fluid

C175S207000, C166S265000

Reexamination Certificate

active

06904981

ABSTRACT:
A system and method for controlling formation pressures during drilling of a subterranean formation utilizing a selectively fluid backpressure system in which fluid is pumped down the drilling fluid return system in response to detected borehole pressures. A pressure monitoring system is further provided to monitor detected borehole pressures, model expected borehole pressures for further drilling and control the fluid backpressure system.

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