Safety System for Wells Having a Cable Deployed Electronic Submersible Pump
AssigneeTejas Research & Engineering, LLC
InventorsRobert C. Henschel, Thomas G. Hill
Life of this patent
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Abstract
A safety system for a well having a cable deployed electronic submersible pump includes a barrier valve having a control line for opening and closing the valve, a first flapper safety valve assembly, and a second flapper safety valve assembly. The second flapper safety valve allows the cable for the pump to pass through the second flapper safety valve when the valve is in a closed position. An integral flapper safety valve assembly incorporates the first and second flapper safety valves.
Claims6
A safety flapper valve assembly for use with an oil or gas well installation having a cable deployed electronic submersible pump comprising:
- a housing, a valve and means for allowing the cable to pass through the safety flapper valve assembly when the valve is in the closed position.
An integral safety valve assembly for use in an oil/gas well having a cable deployed electronic submersible pump comprising:
- a housing;
- a first flapper valve assembly positioned within the housing;
- and
- a second flapper valve assembly positioned within the housing and including means for allowing the cable to pass through the integral safety valve when the second flapper valve assembly is in the closed position.
A safety system for an oil or gas well having a cable deployed electronic submersible pump positioned therein comprising:
- a barrier valve including a control line for opening and closing the valve;
- a first flapper valve assembly including a control line for opening and closing the flapper valve;
- a second flapper valve assembly including a control line for opening and closing the flapper valve, said second flapper valve assembly includes means for allowing the cable of a cable deployed submersible pump to pass through the flapper valve assembly when the flapper valve is in the closed position.
Dependencies are inferred from the claim text.