Well liner running shoe

Details Well liner running shoe Well liner running shoe

1992-04-30

1994-01-11

Bagnell, David J.

Wells

Processes

Cementing, plugging or consolidating

166327, E21B 2300, E21B 3313

Patent

active

052772551

ABSTRACT:
Wellbore liners are set with a running shoe comprising a cylindrical body, end cap, check valve and receiver member in assembly. The receiver member includes threads for receiving the coupling sleeve of a running tool, and retaining wickers for engagement with a cement plug or dart to retain the same permanently engaged with and blocking the flow of fluid through the running shoe. A running tool for use with the shoe includes a coupling sleeve which is retained on a support mandrel by a collar which is secured to the mandrel with a shear pin so that pressuring up the workstring, in the event of a stuck coupling sleeve, will permit retrieval of the main part of the running tool and the workstring. The interior parts of the running shoe are made of aluminum or plastic for easy drill-out to extend the wellbore beyond the end of the liner.

REFERENCES:
patent: 2169569 (1939-08-01), O'Donnell
patent: 3006415 (1961-10-01), Burns et al.

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