Method for increasing the recovery of oil and gas from a water invaded geo-pressured water drive oil reservoir

Patent · Tue May 23 04:00:00 EDT 1978

OSTI ID:6459651

Cook, Jr, H L; Geer, E C

A method is disclosed for the economic recovery of significant additional quantities of oil and gas from a geo-pressured water-drive oil reservoir where oil production has ceased by conventional production techniques and equipment. The method increases the recovery from this type of reservoir, after primary depletion by conventional techniques, by producing the water (and a quantity of oil) from the wells at an abnormally high rate of flow and thereby induces a significant pressure drop in the reservoir remote from the well. This will then induce a significant release of solution gas from the oil through the reservoir. Since the residual hydrocarbon saturation in a water-wet porous media is a constant value for a given reservoir rock, a part of the gas released from solution will increase the hydrocarbon saturation and allow a portion of the oil and gas to become mobile and migrate to the producing wells to be recovered.

• Assignee: Transco Energy Co.
• Patent Number(s): US 4090564
• OSTI ID: 6459651
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
DIFFUSION
ECONOMICS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID FLOW
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FLOW
GAS FUELS
GASES
GEOLOGIC DEPOSITS
GEOPRESSURED SYSTEMS
HYDROGEN COMPOUNDS
NATURAL GAS
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM DEPOSITS
PRESSURE DROP
RESOURCES
WATER