Wells – Processes – Producing the well
Patent
1991-10-21
1993-05-18
Novosad, Stephen J.
Wells
Processes
Producing the well
166 64, 166 68, 166106, 166107, E21B 4300, E21B 4318
Patent
active
052112420
ABSTRACT:
A chamber in a well is connected to two externally separate tubing strings to unload liquid which is applying backpressure against a formation so that the production of fluid from the formation is obstructed. Volumes of the liquid are intermittently collected in the chamber and lifted out of the well through one of the tubing strings in response to high pressure gas injected solely into the chamber through the other tubing string.
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patent: 4844156 (1989-07-01), Hesh
Pp. 125-131, The Technology of Artificial Lift Methods-vol. 2, by Kermit Brown, (1977).
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"Down-Hole Chambers Increase Gas-Lift Efficiency", The Petroleum Engineer, by H. W. Winkler and George F. Camp, (part 1-Jun., 1956; part 2-Aug. 1956).
Pp. 7-001-7-015, Chapter VII, "Chamber Design", CAMCO Gas Lift Manual, H. W. Winkler and S. S. Smith (1962).
SPE 9913, "Lifting of Heavy Oil With Inert-Gas-Operated Chamber Pumps", by John T. Dewan and John Elfarr, (1981).
JPT, "A New Look at Predicting Gas-Well Load-Up", by Steve B. Coleman, Hartley B. Clay, David G. McCurdy and H. Lee Norris III, (Mar., 1991).
JPT, "Understanding Gas-Well Load-Up Behavior", by Steve B. Coleman, Hartley B. Clay, David G. McCurdy and H. Lee Norris III, (Mar., 1991).
JPT, "Applying Gas-Well Load-Up Technology", by Steve B. Coleman, Hartley B. Clay, David G. McCurdy and H. Lee Norris III, (Mar., 1991).
"Liquid Removal from Gas Wells-Gas Lifting with Reservoir Gas" by E. E. DeMoss and P. W. Orris, (Apr. 1968).
Coleman Malcolm W.
Sandel J. Byron
Amoco Corporation
Gabala James A.
Kretchmer Richard A.
Novosad Stephen J.
Sroka Frank J.
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