Fracturing method for stimulation of wells utilizing carbon dioxide based fluids

Patent · Tue Nov 19 04:00:00 EST 1985

OSTI ID:5700281

Holtmyer, M D; Harris, P C; Hunt, C V

A method of fracturing a subterranean formation with a stabilized foamed fracturing fluid comprising from about 30 percent to in excess of about 95 percent by volume of carbon dioxide with the remainder comprising a substantially anhydrous liquid and a selected surfactant. The foam is formed in situ by injection of a stabilized liquid-liquid emulsion containing liquid carbon dioxide into a well bore penetrating the formation. The temperature and pressure of the emulsion is controlled to maintain the carbon dioxide in the liquid phase during injection into the well bore. Thereafter, the carbon dioxide is heated by the subterranean formation to a temperature above about 88/sup 0/ F. at which time the stabilized emulsion spontaneously forms a high quality stabilized foam.

• Assignee: Halliburton Company
• Patent Number(s): US 4554082
• OSTI ID: 5700281
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ANHYDRIDES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
COLLOIDS
COMMINUTION
CONTROL
DISPERSIONS
EMULSIONS
ENHANCED RECOVERY
FLUIDS
FOAMS
FRACTURING
FRACTURING FLUIDS
HEATING
HYDRAULIC FRACTURING
NATURAL GAS WELLS
OIL WELLS
OXIDES
OXYGEN COMPOUNDS
PRESSURE CONTROL
RECOVERY
ROCK-FLUID INTERACTIONS
STABILIZATION
SURFACTANTS
TEMPERATURE CONTROL
WELLS