Liner setting tool and method
This paper describes a liner setting apparatus for setting a liner suspended from a tubular string in a subterranean well and for releasing from a set liner hanger to permit retrieval of the liner setting apparatus and the tubular string. The liner hanger including gripping members for bitting engagement with side walls of the wellbore in response to axial movement of the tubular string, the liner setting apparatus, and the liner within the well bore, and interior threads for threaded engagement and disengagement with the liner setting apparatus. The liner setting apparatus comprising: a tubular mandrel; a nut positioned about the tubular mandrel; a setting ring assembly positioned about the tubular mandrel and axially spaced between the nut and the upper end of the tubular mandrel. The setting ring assembly including: an annular torque control ring, one or more fingers each axially movable with respect to the torque control ring; a plurality of sleeves each positioned about the tubular mandrel and axially movable with respect to the torque control ring and with respect to each other, an actuating member radially moveable from a lock position such that the actuating member is within one of the plurality of locking recesses and the locking sleeves are axially adjacent each other, to an unlock position such that the actuating member is moved radially outwardly by engagement with the ramp surface during axial movement of the annular setting ring assembly, such that the actuating member separates the sleeves axially during radially outward movement thereof and thereby axially moves each of the one or more fingers to the unlock position.
- Assignee:
- Baker Hughes Inc., Houston, TX
- Patent Number(s):
- US 4848469
- Application Number:
- PPN: US 7-206807A
- OSTI ID:
- 5405134
- Resource Relation:
- Patent File Date: 15 Jun 1988
- Country of Publication:
- United States
- Language:
- English
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