Wells – Valves – closures or changeable restrictors
Patent
1977-12-02
1978-11-14
Novosad, Stephen J.
Wells
Valves, closures or changeable restrictors
166 53, 166 65R, 166 68, 166250, E21B 4300, F04B 4902, F04B 4908
Patent
active
041251636
ABSTRACT:
A system for maintaining well bore fluid level to increase oil well production. The fluid level is monitored by a down hole pressure sensing device which relays the fluid level information to the surface by acoustical transmissions where, based on the information received, the speed of the pumping is varied to maintain an optimum fluid level.
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patent: 3018666 (1962-01-01), Hoffman
patent: 3559731 (1971-02-01), Stafford
patent: 3731549 (1973-05-01), Kaiser et al.
patent: 3951209 (1976-04-01), Gibbs
patent: 3961308 (1976-06-01), Parker
patent: 3965983 (1976-06-01), Watson
patent: 4042025 (1977-08-01), Skinner et al.
patent: 4078620 (1978-03-01), Westlake et al.
Basic Sciences, Inc.
Novosad Stephen J.
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