Retrivevable frac mandrel and well control stack to...

Details Retrivevable frac mandrel and well control stack to... Retrivevable frac mandrel and well control stack to...

2007-05-11

2010-10-05

Stephenson, Daniel P (Department: 3676)

Wells

Above ground apparatus

Well caps or casing heads

C166S088100, C166S086100, C166S086200

Reexamination Certificate

active

07806175

ABSTRACT:
A retrievable frac mandrel and a well control adapter are used to efficiently accomplish well completion, re-completion or workover. The retrievable frac mandrel is inserted in a tubing head spool of a well to be completed, re-completed or re-worked. The well control adapter is mounted to a top of the tubing head spool and seals off against a top of the retrievable frac mandrel. After well completion, re-completion or workover is completed, the frac mandrel can be retrieved from the tubing head spool without killing or plugging the well.

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