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Title: Double nut setting tool and liner hanger assembly

Patent ·
OSTI ID:5795263

This patent describes a double nut setting tool and liner hanger assembly. It comprises a tool which is releasably coupled to the liner hanger by a nut means threadedly connected to the liner hanger: upon reaching a desired setting location, hanging the liner hanger in the well to support the weight of the liner and to permit rotation of the liner: manipulating the string of pipe to simultaneously rotate the nut means to a released condition relative to the liner hanger while rotating a lock nut in a clutch housing into a locking position in the clutch housing to engage the clutch housing with the liner; and applying weight to the string of pipe to engage the clutch housing with the liner when the coupling nut is released and the lock nut is in a locking position so that the liner can be rotated by rotation of the string of pipe after the coupling nut is released.

Assignee:
Lindsey Completion Systems, Inc., Midland, TX (United States)
Patent Number(s):
US 5048612; A
Application Number:
PPN: US 7-579654
OSTI ID:
5795263
Resource Relation:
Patent File Date: 10 Sep 1990
Country of Publication:
United States
Language:
English