Method for acidizing subterranean formations. [fracture-acidizing]

Patent · Tue Jan 17 04:00:00 EST 1978

OSTI ID:5203807

Hessert, J E; Bertus, B J; Johnston, Jr, C C

Gelled acidic compositions suitable for either matrix acidizing or fracture-acidizing of subterranean formations, and methods of using said compositions in acidizing operations, are provided. Said compositions comprise water, a water-soluble cellulose ether, an acid, a water soluble compound of a polyvalent metal wherein the metal can be reduced to a lower polyvalent valence state and cause gelation of the water containing said cellulose ether and said acid, and a reducing agent capable of reducing said metal and causing said gelation.

• Assignee: Phillips Petroleum Co.
• Patent Number(s): US 4068720
• OSTI ID: 5203807
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
ACETIC ACID
ACIDIZATION
CARBOHYDRATES
CARBOXYLIC ACIDS
CELLULOSE
CHROMATES
CHROMIUM COMPOUNDS
COLLOIDS
DISPERSIONS
ENHANCED RECOVERY
ETHERS
FRACTURING
GELATION
GELS
GEOLOGIC DEPOSITS
HYDRAULIC FRACTURING
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MONOCARBOXYLIC ACIDS
NATURAL GAS DEPOSITS
NATURAL GAS WELLS
OIL WELLS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM DEPOSITS
POLYSACCHARIDES
REDUCING AGENTS
RESERVES
SACCHARIDES
TRANSITION ELEMENT COMPOUNDS
WATER
WELLS