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US3765442A Expired / Lapsed US ⏱️ 0.0 years remaining

System for control of oil well production

Assignee: Individual
•
Filing: 1969-05-22
•
Granted: 1973-10-16
•
Expires: 1989-05-22
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Abstract

Abstract A system for operating and controlling production of oil from a plurality of wells in which oil from the wells is passed to an oil and gas separator and a float switch mechanism is mounted in the oil and gas separator in which the float of the float switch contacts a normally-open microswitch, when it reaches its uppermost limit, which sends a signal to an alarm and also operates appropriate valves which shut off the flow of oil from the wells and pass oil from the oil-gas separator to an appropriate storage tank, a holding relay holds this particular signal until the float reaches its lowermost position, the float contacts a normally-closed microswitch, when it reaches its lowermost limit, which sends a signal which releases the alarm and control condition and the holding relay holds this signal until the float again reaches its upper position. The system may also be provided with an automatic counting system to count the total number of barrels produced from the entire group of producing wells during a particular day to thereby meet allowable limits for the field.

Inventors

  • 👤 H Nettles
  • 👤 S Bazzell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 05:41
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/12; E; E21; E21B; E21B43/00; E21B43/34; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7303; Y10T137/7358; Y10T137/7368

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 185 words
A system for controlling the production of liquid from at least one liquid producing well, comprising; producing flow line means leading from said well to accumulator tank means; discharge flow line means leading from said accumulator tank to at least one storage tank means; valve means mounted in said producing line means; valve means mounted in said discharge liNe means; float means mounted in said accumulator tank means; switch means operatively connected to said float means, including, a first switch operated by said float means when said float is in a first of its two extreme positions; a second switch operated by said float when said float is in the second of its two extreme positions; electrical power means operatively connected to said first valve means and said second valve means through said switch means and holding relay means electrically connected to said first and said second switch means and adapted to hold the signal selected by each of said first and second switches irrespective of the subsequent movement of said float means until the other of said switches is operated by said float means.
Claim 2
Independent Claim 185 words
A system for controlling the production of liquid from at least one liquid producing well, comprising; producing flow line means leading from said well to accumulator tank means; discharge flow line means leading from said accumulator tank to at least one storage tank means; valve means mounted in said producing line means; valve means mounted in said discharge liNe means; float means mounted in said accumulator tank means; switch means operatively connected to said float means, including, a first switch operated by said float means when said float is in a first of its two extreme positions; a second switch operated by said float when said float is in the second of its two extreme positions; electrical power means operatively connected to said first valve means and said second valve means through said switch means and holding relay means electrically connected to said first and said second switch means and adapted to hold the signal selected by each of said first and second switches irrespective of the subsequent movement of said float means until the other of said switches is operated by said float means.
Claim 3
Dependent Claim 41 words
A system in accordance with claim 1 wherein the float means includes a rotatable arm adapted to be rotated by the float of said float means and to operatively contact each of the switches of the switch means upon rotation thereof.
Claim 4
Dependent Claim 47 words
A system in accordance with claim 2 wherein the float of the float means is located within the accumulator tank means, the electrical portion of the system is located outside the accumulator tank means, and the rotatable arm passes through the wall of the accumulator tank means.
Claim 5
Dependent Claim 40 words
A system in accordance with claim 3 wherein the float means includes seal means mounted about the rotatable arm and adapted to provide a fluid seal between the float of said float means and the electrical portion of the system.

References Cited (Backward Citations)

US2986154A Cited
US2126238A Cited
US2180844A Cited
US3188061A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-15 1977-04-16 1977-10-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-15 1981-04-16 1981-10-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-15 1985-04-16 1985-10-16 $7700.00 Window Closed / Lapsed

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