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U.S. Department of Energy
Office of Scientific and Technical Information

Setting tool for a liner hanger assembly

Patent ·
OSTI ID:5799508
This patent describes a setting tool and liner hanger system for use in rotating a liner hanging prior to and subsequent to setting of a linear hanger. It comprises a tubular liner hanger having an internal threaded coupling for releasable coupling to a setting tool, and means for hanging a liner in a well casing: a setting tool having an external threaded nut for releasable coupling to an internal threaded coupling in a liner hanger; first coupling means on the setting tool including a clutch housing for releasably coupling to a liner hanger for imparting rotation thereto when coupled; second coupling means on the setting tool for releasably coupling the clutch housing to the setting tool for imparting rotation thereto when coupled; nut means on the setting tool for selectively co-rotatively coupling the clutch housing to the setting tool upon release of the second coupling means; the second coupling means being operative prior to hanging a liner in a well casing and being releasable by to permit setting tool rotation to release the external threaded nut from the internal threaded coupling and to actuate the nut means to couple the clutch housing to the setting tool so that the liner hanger can be rotated after the external nut is released from the internal threaded coupling.
Assignee:
Lindsey Completion Systems, Inc., Midland, TX (United States)
Patent Number(s):
US 5048606; A
Application Number:
PPN: US 7-579547
OSTI ID:
5799508
Country of Publication:
United States
Language:
English