Wells – With time or distance measuring – temperature responsive or...
Patent
1978-12-20
1980-07-08
Novosad, Stephen J.
Wells
With time or distance measuring, temperature responsive or...
166 53, 166 70, 166106, 166314, 417 58, E21B 4300, E21B 4316
Patent
active
042112796
ABSTRACT:
A plunger lift system used in wells having a tubing string disposed within casing. An improved plunger catcher and trip assembly is provided within the wellhead to hold the plunger in its upper position while lift gas escapes from the tubing string through the wellhead and formation fluids form a new slug in the lower end of the tubing string. The new system incorporates a conventional mechanical timer or controller to allow simple adjustments to obtain the most efficient product rate from each individual well. The controller determines the time interval during which lift gas is injected into the annulus between the casing and tubing and the time interval during which the plunger is held within the wellhead by the catcher and trip assembly.
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Harold Brown Co., Inc., Production Equipment, Technical Manual, 1956, pp. 23-25. _
Otis Engineering Corp. Gas Lift Equipment and Services Catalog, (OEC5122), pp. 36, 37. _
Felger Thomas R.
Novosad Stephen J.
Otis Engineering Corporation
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