Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Patent
1998-06-10
2000-10-17
Suchfield, George
Wells
Processes
Operating valve, closure, or changeable restrictor in a well
166119, 166191, 1663323, 166386, 166387, E21B 33124, E21B 33128, E21B 33129, E21B 3414
Patent
active
061316636
ABSTRACT:
A method and apparatus is disclosed for downhole remediation. In the preferred embodiment, a bridge plug and service packer can be run into a well on coiled or rigid tubing. The assembly is capable of being set without rotation. The service packer is locked against setting until it is separated from the bridge plug. Setting of the bridge plug closes a passage within it that had been open to facilitate circulation during run-in. The service packer is set with longitudinal movements using an indexing mechanism. At the conclusion of the procedure, the service packer is released and lowered to recapture the bridge plug. The bridge plug is equalized and released to allow the assembly to be repositioned elsewhere in the wellbore or retrieved. The spacing between the packer and bridge plug can be varied as desired.
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Henley David A.
McMahan Michael E.
Baker Hughes Incorporated
Suchfield George
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