Hydraulic downhole oil recovery system
First Claim
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1. An improved hydraulic downhole oil recovery system, comprising:
- an above ground surface unit, further comprising a fluid transfer means for transferring a fluid through one or more fluid-transfer tubes, a pressure measuring means for measuring pressure on said fluid-transfer tubes a fluid-transfer tube receiving means;
said fluid-transfer tubes, wherein said tubes mate with said above ground surface unit at a first end and mate with a submersible downhole unit at a second end;
said submersible downhole unit, further comprising an inner removable shell, where said inner removable shell houses a plurality of fluid transfer tubes, a fluid-transfer tube receiving means, said fluid-transfer tube receiving means being reversibly mated with said fluid-transfer tube second end, and said fluid-transfer tube receiving means being located on either side of a power piston, said power piston, where said power piston is actuated between a first position and a second position by differential pressure exerted on either side of said power piston, a connecting rod extending between said power piston and a production piston, where said connecting rod holds said power piston and said production piston in a fixed position with respect to one another, a production piston, where said production piston is actuated between a first position and a second position by corresponding actuation of said power piston and connection rod, a plurality of valves allowing for one-way flow of a production fluid as said production fluid cycles through said inner removable housing.
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Abstract
An improved hydraulic downhole oil recovery system that incorporates an above ground unit and a submersible, reciprocating downhole pump unit. Water-based fluid, rather than hydraulic fluid, is responsible for actuating the reciprocating downhole pump unit. The water-based fluid is transferred through the system using coil, coil tubing. The system further relies upon coil exterior production tubing to provide exceptional advantage in deviated oil wells.
32 Citations
6 Claims
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1. An improved hydraulic downhole oil recovery system, comprising:
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an above ground surface unit, further comprising a fluid transfer means for transferring a fluid through one or more fluid-transfer tubes, a pressure measuring means for measuring pressure on said fluid-transfer tubes a fluid-transfer tube receiving means;
said fluid-transfer tubes, wherein said tubes mate with said above ground surface unit at a first end and mate with a submersible downhole unit at a second end;
said submersible downhole unit, further comprising an inner removable shell, where said inner removable shell houses a plurality of fluid transfer tubes, a fluid-transfer tube receiving means, said fluid-transfer tube receiving means being reversibly mated with said fluid-transfer tube second end, and said fluid-transfer tube receiving means being located on either side of a power piston, said power piston, where said power piston is actuated between a first position and a second position by differential pressure exerted on either side of said power piston, a connecting rod extending between said power piston and a production piston, where said connecting rod holds said power piston and said production piston in a fixed position with respect to one another, a production piston, where said production piston is actuated between a first position and a second position by corresponding actuation of said power piston and connection rod, a plurality of valves allowing for one-way flow of a production fluid as said production fluid cycles through said inner removable housing. - View Dependent Claims (2, 3, 4, 5)
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6. A method of using an improved hydraulic downhole oil recovery system comprising the steps of selecting:
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an above ground surface unit, further comprising a fluid transfer means for transferring a fluid through one or more fluid-transfer tubes, a pressure measuring means for measuring pressure on said fluid-transfer tubes a fluid-transfer tube receiving means;
said fluid-transfer tubes, wherein said tubes mate with said above ground surface unit at a first end and mate with a submersible downhole unit at a second end;
said submersible downhole unit, further comprising an inner removable shell, where said inner removable shell houses a plurality of fluid transfer tubes, a fluid-transfer tube receiving means, said fluid-transfer tube receiving means being reversibly mated with said fluid-transfer tube second end, and said fluid-transfer tube receiving means being located on either side of a power piston, said power piston, where said power piston is actuated between a first position and a second position by differential pressure exerted on either side of said power piston, a connecting rod extending between said power piston and a production piston, where said connecting rod holds said power piston and said production piston in a fixed position with respect to one another, a production piston, where said production piston is actuated between a first position and a second position by corresponding actuation of said power piston and connection rod, a plurality of valves allowing for one-way flow of a production fluid as said production fluid cycles through said inner removable housing.
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Specification
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Current AssigneeJoe Crawford
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Original AssigneeJoe Crawford
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InventorsCrawford, Joe
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Application NumberUS10/945,530Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current166/369CPC Class CodesE21B 43/129 Adaptations of down-hole pu...
