Wells – Processes – Placing or shifting well part
Patent
1993-04-12
1994-11-22
Dang, Hoang C.
Wells
Processes
Placing or shifting well part
166187, 277 346, E21B 33127
Patent
active
053660200
ABSTRACT:
The present invention is directed to a reinflatable external casing packer which is operable in three modes, including: a filling mode of operation, a locking mode of operation, and a reinflation mode of operation. A valve system is provided which allows for selective filling and reinflation of the external casing packer in response to suspected or detected loss of pressure within the inflation chamber. The present invention may also be characterized as a method of placing a wellbore.
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Abarca John R.
Berzin Vel
Baker Hughes Incorporated
Dang Hoang C.
Handley Mark W.
Hunn Melvin A.
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