Fluid recovery system and method
AssigneeJ&J Technical Services, L.L.C.
InventorsThomas Roland Jackson, William Julius Jackson
Life of this patent
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Abstract
A fluid recovery system 10 for collecting formation fluid at the surface of a well 12 includes a downhole jet pump 20 and a surface diaphragm pump 40 having a plurality of diaphragms 42. The jet pump includes a fluid nozzle 22, an intake 24 directing the formation fluid into a jet 26, a mixing tube 28 for mixing the power fluid and the formation fluid, and a diffuser 30 for converting the velocity of the mixed fluid to pressure. A flow meter 50 and a pressure sensor 52 monitor the quantity and pressure of the power fluid to the jet pump.
Claims20
A fluid recovery system for collecting formation fluid at the surface of a well, the well including an outer tubular, a production tubular positioned within the outer tubular, and an annulus between the outer tubular and the production tubular, the system comprising:
- a downhole jet pump including a fluid nozzle to convert pressure of the power fluid to velocity, an intake directing the formation fluid into a jet, a mixing tube for mixing the power fluid and the formation fluid, and a diffuser for converting the velocity of the mixed fluid to pressure;
- a diaphragm pump at the surface for powering the downhole jet pump, the diaphragm pump including a plurality of diaphragms for pressurizing the power fluid;
- a flow meter for measuring the quantity of power fluid from the diaphragm pump to the jet pump;
- and
- a pressure sensor for monitoring the pressure of the power fluid from the diaphragm pump to the jet pump.
A fluid recovery system for collecting formation fluid at the surface of a well, the well including an outer tubular, a production tubular positioned within the outer tubular, and an annulus between the outer tubular and the production tubular, the system comprising:
- a downhole jet pump including a fluid nozzle to convert pressure of the power fluid to velocity, an intake directing the formation fluid into a jet, a mixing tube for mixing the power fluid and the formation fluid, and a diffuser for converting the velocity of the mixed fluid to pressure;
- a diaphragm pump at the surface for powering the downhole jet pump, the diaphragm pump including a plurality of diaphragms for pressurizing the power fluid;
- a power source having a rotatable shaft for powering the diaphragm pump;
- a wobble plate rotated by the shaft for powering the plurality of diaphragms;
- a flow meter for measuring the quantity of power fluid from the diaphragm pump to the jet pump;
- a pressure sensor for monitoring the pressure of the power fluid from the diaphragm pump to the jet pump;
- a separation tank at the surface for receiving the mixed fluid and separating hydrocarbons from water;
- and
- separated water from the separation tank passes to the diaphragm pump to generate the power fluid.
A method of collecting formation fluid at the surface of a well, the well including an outer tubular, a production tubular positioned within the outer tubular, and an annulus between the outer tubular and the production tubular, the method comprising:
- positioning a downhole jet pump of a lower end of the production tubular, including a fluid nozzle to convert pressure of the power fluid to velocity, an intake directing the formation fluid into a jet, a mixing tube for mixing the power fluid and the formation fluid, and a diffuser for converting the velocity of the mixed fluid to pressure;
- providing a diaphragm pump at the surface for powering the downhole jet pump, the diaphragm pump including a plurality of diaphragms for pressurizing the power fluid;
- measuring the quantity of power fluid from the diaphragm pump to the jet pump;
- and
- monitoring the pressure of the power fluid from the diaphragm pump to the jet pump.
Dependencies are inferred from the claim text.