Wells – Processes – Placing or shifting well part
Reexamination Certificate
2007-08-16
2010-06-22
Wright, Giovanna C (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S102000, C166S135000, C166S192000, C166S193000
Reexamination Certificate
active
07740079
ABSTRACT:
A tool that is easily convertible from a frac plug to a bridge plug is disclosed. The tool comprises a mandrel with a mule shoe connected to the lower end thereof. A closing ball is disposed in a cavity defined by the mule shoe. The mandrel is threaded to receive a plug at or near the upper end thereof to convert the frac plug to a bridge plug.
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Clayton Robert
Porter Jesse
Halliburton Energy Service,s Inc.
McAfee & Taft
Wright Giovanna C
Wustenberg John W.
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