Dynamic annular pressure control apparatus and method

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

2007-03-06

2007-03-06

Tsay, Frank S. (Department: 3672)

Boring or penetrating the earth

Processes

Boring with specific fluid

C175S207000, C166S265000

Reexamination Certificate

active

10775425

ABSTRACT:
A drilling system for drilling a bore hole into a subterranean earth formation, wherein at least a portion of the mud flow from the primary mud pump is diverted to the mud discharge outlet, thereby creating a backpressure system to readily increase annular pressure.

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