Packer for use in, and method of, cementing a tubing string in a

Details Packer for use in, and method of, cementing a tubing string in a Packer for use in, and method of, cementing a tubing string in a

1990-12-07

1992-06-02

Melius, Terry Lee

Wells

Processes

Cementing, plugging or consolidating

166154, 166185, 166202, 166332, E21B 3313

Patent

active

051179105

ABSTRACT:
A packer apparatus, particularly a cup type casing packer shoe, includes a pressure-actuated closing sleeve and pressure-actuated pumpout seats. An upper pumpout seat moves with the closing sleeve in response to a first pressure so that the closing sleeve closes ports through which fluid is communicated to an annulus outside the apparatus. Both the upper pumpout seat and a lower pumpout seat and any intervening fluid are pumped out of the apparatus in response to a second, higher pressure so that the apparatus communicates with the well below the annulus without a drillout procedure having to be performed through the apparatus or a tubing string in which the apparatus is connected. A related method is also disclosed.

REFERENCES:
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patent: 3131767 (1964-05-01), Chancellor et al.
patent: 3524503 (1970-08-01), Baker
patent: 3527299 (1970-09-01), Lewis
patent: 3768556 (1973-10-01), Baker
patent: 3811500 (1974-05-01), Morrisett et al.
patent: 4260017 (1981-04-01), Nelson et al.
patent: 4407369 (1983-10-01), Hutchison et al.
patent: 4469174 (1984-09-01), Freeman
patent: 4510994 (1985-04-01), Pringle
patent: 4674569 (1987-06-01), Revils et al.
patent: 4828037 (1989-05-01), Lindsey et al.
patent: 4961465 (1990-10-01), Brandell

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