E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/129 (2006.01) E21B 33/04 (2006.01) E21B 33/138 (2006.01) E21B 41/00 (2006.01)
Patent
CA 2238500
The invention relates to a tieback hanger for connecting the liner of a lateral well bore to the parent well bore. The tieback hanger includes a spring which maintains a constant force on the tieback hanger to prevent it from protruding into the parent well bore.
Begg Stephen M.
George Grant E.e.
Schlumberger Canada Limited
Smart & Biggar
Stellarton Energy Corporation
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