Selectively plugging the more permeable strata of a subterranean formation
Patent
·
OSTI ID:7329235
A method for plugging the more permeable strata of a subterranean formation of nonuniform permeability in which an aqueous solution of a gelling agent and an aqueous solution containing both a gelling agent and an alkali metal silicate are injected into the formation. The two solutions can be injected in any order, and are separated by a slug of an inert aqueous spacer liquid. The first injected solution preferably also contains a polymer thickener. 15 claims.
- Assignee:
- Union Oil Co. of California
- Patent Number(s):
- US 4004639
- OSTI ID:
- 7329235
- Country of Publication:
- United States
- Language:
- English
Similar Records
Selective plugging of permeable water channels in subterranean formations
Plugging of water-producing zones in a subterranean formation
Selectively controlling the flow of fluids through subterranean formations
Patent
·
Tue Aug 13 00:00:00 EDT 1968
·
OSTI ID:5830551
Plugging of water-producing zones in a subterranean formation
Patent
·
Tue Jun 28 00:00:00 EDT 1977
·
OSTI ID:7253935
Selectively controlling the flow of fluids through subterranean formations
Patent
·
Mon Feb 28 23:00:00 EST 1977
·
OSTI ID:6543876
Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
ALKALI METAL COMPOUNDS
COLLOIDS
DISPERSIONS
ENHANCED RECOVERY
FLUID INJECTION
GELS
GEOLOGIC DEPOSITS
OIL FIELDS
OXYGEN COMPOUNDS
PERMEABILITY
PETROLEUM DEPOSITS
PLUGGING
RESERVOIR ROCK
RESOURCES
ROCKS
SILICATES
SILICON COMPOUNDS
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
ALKALI METAL COMPOUNDS
COLLOIDS
DISPERSIONS
ENHANCED RECOVERY
FLUID INJECTION
GELS
GEOLOGIC DEPOSITS
OIL FIELDS
OXYGEN COMPOUNDS
PERMEABILITY
PETROLEUM DEPOSITS
PLUGGING
RESERVOIR ROCK
RESOURCES
ROCKS
SILICATES
SILICON COMPOUNDS