Debris barrier with a downhole tool setting assembly

Details Debris barrier with a downhole tool setting assembly Debris barrier with a downhole tool setting assembly

1995-06-02

1996-12-10

Tsay, Frank

Wells

Processes

Placing or shifting well part

166208, E21B 2303

Patent

active

055822533

ABSTRACT:
An apparatus is disclosed to allow efficient setting and release from a liner packer connected to a liner assembly. The polished bore adjacent the packer is protected from debris since the setting procedure takes place while the polished bore remains protected. Movements necessary to accomplish the setting procedure occur principally at the uphole end of the polished bore to minimize adverse effects on the integrity of the polished bore from such movements in an area where subsequent operations require a sealing contact.

REFERENCES:
patent: 4726425 (1988-02-01), Smith, Jr.
patent: 4848469 (1989-07-01), Baugh et al.
patent: 4942924 (1990-07-01), Duncan
patent: 5318131 (1994-06-01), Baker
patent: 5404955 (1995-04-01), Echols, III et al.
patent: 5411099 (1995-05-01), Braddick
patent: 5462121 (1995-10-01), Schmuck et al.
patent: 5472055 (1995-12-01), Simson et al.
George Telfer, et al., Floating junk bonnet protects liner top debris, Oil and Gas Journal, Sep. 12, 1994, pp. 79-85.

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