Acid composition and use thereof in treating fluid-bearing geologic formations

Patent · Tue Apr 04 00:00:00 EST 1972

OSTI ID:6305714

Kucera, C H

A composition useful as a fluid-loss control additive consists of a mixture of the following ingredients in the amount of between 7% and 30% by wt of each, to make a total of 100%: (1) an aqueous dispersion for binding clay selected from the class consisting of resins, rubber, rosin acids, and natural gums; (2) a thickening agent selected from the class consisting of fatty acids having from 10 to 24 carbon atoms, rosin acids, and metal soaps thereof; (3) an anionic or nonionic surfactant; and (4) a colloid-forming material which is either clay or asbestos cement. Another optional ingredient is a low- viscosity oil, which is added in amount of up to 75% by wt of the sum of ingredients (1) to (4). The present composition prevents or greatly retards the excessive loss of fluids through the connecting pores of a geologic formation. (7 claims)

• Assignee: TUL; EDB-81-114476
• Patent Number(s): CA 896861
• OSTI ID: 6305714
• Resource Relation: Patent File Date: Filed date 14 Jan 1969
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
OIL WELLS
ACIDIZATION
ADDITIVES
CEMENTS
CHEMICAL COMPOSITION
CLAYS
PETROLEUM
POLYMERS
RESINS
STABILIZATION
SURFACTANTS
WATER TREATMENT
WELL COMPLETION
WELL STIMULATION
BUILDING MATERIALS
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
STIMULATION
WELLS
020300* - Petroleum- Drilling & Production