Polymer liners in rod pumping wells

Details Polymer liners in rod pumping wells Polymer liners in rod pumping wells

1994-12-07

1996-04-30

Novosad, Stephen J.

Wells

Processes

Producing the well

166 68, 1662421, 138140, E21B 1700, E21B 4300

Patent

active

055116191

ABSTRACT:
The installation of an abrasion resistent polymer liner in the production tubing string of a well which is being produced by rod pumping for the principal purpose of reducing rod wear on the tubing string, and wear on the rods and/or the rod couplings. In a preferred embodiment of the invention, the polymer liner is characterized by an extruded polymer material having a high density, which is abrasive resistant, and which has a coefficient of friction that is much lower than the coefficient of friction of metal tubing, such as high density polyethylene.

REFERENCES:
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patent: 4793409 (1988-12-01), Bridges et al.
patent: 4852655 (1989-08-01), Guy
patent: 4858688 (1989-08-01), Edwards et al.
patent: 4938285 (1990-07-01), Edwards et al.
patent: 5099917 (1992-03-01), Roser
patent: 5110644 (1992-05-01), Sparks et al.
patent: 5219028 (1993-06-01), Martin et al.
patent: 5351752 (1994-10-01), Wood et al.

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