Method of treating heterogeneous formation with potassium hydroxide

Patent · Tue Jan 17 04:00:00 EST 1989

OSTI ID:6161386

Frank, J E

A process is described of stabilizing clays in a water-sensitive, stratified subterranean sandstone formation containing migratable fine particles which interact with aqueous solutions having ionic makeup distinct from connate water to reduce permeability of the formation and flow of water therethrough. The formation is penetrated by a wellbore in fluid communication therewith and wherein the formation is composed of at least two different stratum having substantially different permeabilities and wherein an aqueous solution comprised of potassium hydroxide is contacted with the fine particles for a time sufficient to effectively render the fine particles relatively insensitive to the aqueous solution having an ionic makeup distinct from the connate water.

• Assignee: Marathon Oil Co., Findlay, OH
• Patent Number(s): US 4798245
• OSTI ID: 6161386
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
CHEMICAL COMPOSITION
CLAYS
CONNATE WATER
DISPERSIONS
DISPLACEMENT FLUIDS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
GROUND WATER
HYDROGEN COMPOUNDS
HYDROXIDES
INTERSTITIAL WATER
MIXTURES
OIL WELLS
OXYGEN COMPOUNDS
PERMEABILITY
PETROLEUM
POTASSIUM COMPOUNDS
POTASSIUM HYDROXIDES
RECOVERY
ROCK-FLUID INTERACTIONS
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SOLUTIONS
STABILIZATION
STIMULATION
WATER
WATERFLOODING
WELL STIMULATION
WELLS