Well pumping

Details Well pumping Well pumping

1993-03-22

1994-03-01

Bui, Thuy M.

Wells

Processes

Placing or shifting well part

166 84, E21B 3303

Patent

active

052898849

ABSTRACT:
Method and apparatus for sucker rod pumping in a wellbore using, in lieu of a stuffing box, first and second seal members connected by a length of compressible hose, the first seal member adapted to seal with the wellhead in a liquid and vapor tight manner and the second seal member adapted to seal with the sucker rod string in a liquid and vapor tight manner.

REFERENCES:
patent: 4889184 (1989-12-01), Lugtmeier et al.
patent: 5058668 (1991-10-01), Newton
patent: 5088559 (1992-02-01), Taliaferro
patent: 5141052 (1992-08-01), Bump

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