Wells – Processes – Producing the well
Patent
1984-12-21
1986-02-18
Novosad, Stephen J.
Wells
Processes
Producing the well
166247, 1661052, 2503571, 417 36, E21B 4704
Patent
active
045707189
ABSTRACT:
A system for controlling production in an oil well comprises a controller for activating the means for causing reciprocation of the sucker-rods; a sensing means secured to the outer surface of the production tubing near the lower end thereof comprising a radioactive source spaced from a radioactivity detector such that oil at that level will fill the said space, means associated with said radioactivity detector for counting the output of the detector and establishing an "off signal" when the frequency of the output is indicative of no oil in the said space; means for converting the "off signal" into an acoustical signal directed up the borehole; and receiving means at the top of the borehole for detecting the acoustical representation of the "off signal" and transmitting it as an electric signal to said controller.
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Bagnell David J.
Novosad Stephen J.
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