Wells – Processes – Producing the well
Reexamination Certificate
2007-06-05
2007-06-05
Thompson, Kenneth (Department: 3672)
Wells
Processes
Producing the well
C166S053000, C166S068000, C166S105000, C294S086220, C417S555200
Reexamination Certificate
active
10305524
ABSTRACT:
Apparatus and methods for producing fluids from a well and for controlling the production of fluids from multiple wells, particularly from a remote location. The well is provided with a winch/cable drum having a cable wound thereon with a swabbing tool on the end of the cable. The swabbing tool is initially located in a riser that is mounted to the wellhead and lowered into the well and down through the fluids in the well under control of a programmable logic controller (PLC95). Upon reaching a pre-determined depth, the PLC95stops the rotation of the winch/cable drum and then reverses the direction of rotation to retrieve the swabbing tool, thereby lifting the fluids in the well bore up out of the well. Flowline connections, with appropriate valves, are provided in the riser for routing any gas and oil that is lifted from the well into pipelines and on to storage tanks or separators as the swabbing tool is retrieved. The PLC95is programmed for manual operation, for independent control of the wellhead apparatus, and/or for operation from a remote location.
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Database WPI, Section Ch, Week 200067, Derwent Publications Ltd., London, GB; AN 2000-685338, XP 002277676 & RU 2 151 916 C (Ranko NPAK Stock Co), Jun. 27, 2000.
Holcomb James R.
Leenerts John L.
Thompson Kenneth
Wisner Mark R.
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