Wells – With below and above ground modification – Eduction pump or plunger in well
Patent
1992-06-30
1994-10-04
Dang, Hoang C.
Wells
With below and above ground modification
Eduction pump or plunger in well
138109, 166105, 166242, 417450, E21B 1720, E21B 4300
Patent
active
053517520
ABSTRACT:
An artificial lifting system is designed for use at a pumping installation which has a pump drive at the surface or head end of a well and a reciprocating pump positioned in the lower end of the well. The artificial lifting system has a tubing string connected between the pump drive and the pump for performing the dual functions of reciprocating the pump plunger in response to activation of the pump drive, and for transporting oil from the underground source to the wellhead. The tubing string advantageously is constructed of a plurality of lightweight, non-metallic tubing segments which are axially connected to form an elongated conduit of several thousand feet in length. In the exemplary embodiment, the tubing segments are made of a glass and carbon reinforced epoxy resin. Preferably, the composite material has a density of approximately 0.1 pounds per cubic inch and a fiber content of approximately 60% by volume, with the resulting composite material having an elastic modulus in excess of 700,000 psi. The invention additionally is directed to various structural features for facilitating the implementation of such a composite lifting system.
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Tew Blaine
Wood Steven M.
Brunswick Corporation (TEW)
Dang Hoang C.
Exoko, Incorporated (Wood)
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