Wells – Processes – Separating material entering well
Patent
1991-06-24
1992-12-01
Suchfield, George A.
Wells
Processes
Separating material entering well
166 50, 166302, 166303, 166306, E21B 4322, E21B 4324, E21B 4340
Patent
active
051672804
ABSTRACT:
A solvent stimulation process whereby a viscosity reducing agent is circulated through a horizontal well via a production string. Said agent exits the production string and enters an annulus formed by said string and a liner. Said agent diffuses into the reservoir at a pressure below the reservoir pressure. As said agent diffuses through the reservoir under the influence of a concentration gradient, it reduces the oil's viscosity and makes it mobile. Simultaneously, oil of reduced viscosity migrates into the well under a pressure drawdown influence. A pseudo steady state production rate is achieved when convective movement of the oil of reduced viscosity is exactly counterbalanced by the diffusional rate of the viscosity reducing agent in a stimulated radial zone along said well. This stimulates a large volume of oil through the extensive surface area of the wellbore thus producing increased volumes of hydrocarbonaceous fluids from the reservoir.
REFERENCES:
patent: 3500917 (1970-03-01), Lehner et al.
patent: 3547193 (1969-10-01), Gill
patent: 3838738 (1974-10-01), Redford et al.
patent: 4026358 (1976-06-01), Allen
patent: 4067391 (1978-01-01), Dewell
patent: 4116275 (1978-09-01), Butler et al.
patent: 4257650 (1981-03-01), Allen
patent: 4293035 (1981-10-01), Fitch
patent: 4344485 (1982-08-01), Butler
patent: 4373585 (1983-02-01), Fitch et al.
patent: 4398602 (1983-08-01), Anderson
patent: 4456065 (1984-06-01), Heim et al.
patent: 4485869 (1984-12-01), Sresty et al.
patent: 4545435 (1985-10-01), Bridges et al.
patent: 4753293 (1988-06-01), Bohn
patent: 4844158 (1989-07-01), Jennings, Jr.
Hazlett Randy D.
Sanchez James M.
Malone C. A.
McKillop A. J.
Mobil Oil Corporation
Speciale C. J.
Suchfield George A.
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