Controlled reservoir production

Wells – Processes – With indicating – testing – measuring or locating

Patent

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Details

166250, 166254, 166268, E21B 4400

Patent

active

046763139

ABSTRACT:
This invention contemplates a method of enhancing oil and/or gas recovery by properly drilling injection and production wells into a reservoir, incorporating flow control valves and sensors in both sets of wells, and connecting these valves and sensors to a surface computer. The computer compares the fluid flow data from the valves and sensors to a theoretical flow model of the reservoir to determine actual fluid flow paths in the reservoir. The computer then determines the optimum fluid flow rates and paths and adjusts the valve open-close patterns and settings accordingly, to force the reservoir fluid flows into those paths. The computer continually performs these operations so as to constantly provide maximum sweep efficiency and therefore optimum reservoir productivity. In conjunction with the above methodology, the densities and viscosities of the injected fluids can be varied so that they can assist with the vertical movement of fluids within the reservoir. The method and means described can also be used for leaching or chemical extraction means used in mining or mineral deposit extraction processes.

REFERENCES:
patent: 3892270 (1975-07-01), Lindquist
patent: 4155403 (1979-05-01), Hurst
patent: 4222611 (1980-09-01), Larson et al.
patent: 4433727 (1984-02-01), Argabright et al.
patent: 4461172 (1984-07-01), McKee et al.
patent: 4558592 (1985-12-01), Despax

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