Treating fines containing earthen formations
Method for treating earthen formations which contain water-sensitive, finely divided particulate matter wherein there is injected into the formation steam or a mixture of steam and hot water containing an effective fines-stabilizing amount of a compound containing ammoniacal nitrogen selected from the group consisting of ammonium hydroxide, an ammonium salt of an inorganic acid, an ammonium salt of a carboxylic acid, ammonium cyanate, derivatives of ammonium cyanate, ammonium thiocyanate, and a water-soluble ammonia or ammonium ion precursor selected from the group consisting of amides of carbamic acid and thiocarbamic acid, derivatives of such amides, tertiary carboxylic acid amides and their substituted and akylated derivatives. Preferred additives include ammonium carbonate and urea. If the formation is a subsurface oil-containing formation, the treatment can be part of a method for enhanced oil recovery.
- Assignee:
- Union Oil Company of California
- Patent Number(s):
- US 4549609
- OSTI ID:
- 5945144
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
AMIDES
AMMONIUM CARBONATES
AMMONIUM CHLORIDES
AMMONIUM COMPOUNDS
AMMONIUM HALIDES
AMMONIUM HYDROXIDES
CARBON COMPOUNDS
CARBONATES
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACIDS
CHEMICAL COMPOSITION
CHLORIDES
CHLORINE COMPOUNDS
CYANATES
DISPLACEMENT FLUIDS
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
HALIDES
HALOGEN COMPOUNDS
HOT WATER
HYDROGEN COMPOUNDS
HYDROXIDES
INORGANIC ACIDS
NITROGEN COMPOUNDS
OIL WELLS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
RECOVERY
RESERVOIR ROCK
SOLVENT PROPERTIES
STABILIZATION
STEAM INJECTION
THERMAL RECOVERY
UREA
WATER
WATERFLOODING
WELLS