Fracturing method for stimulation of wells utilizing carbon dioxide based fluids

Patent · Tue Nov 06 04:00:00 EST 1984

OSTI ID:6043915

Almond, S W; Harris, P C

A method of fracturing a subterranean formation with a stabilized foamed fracturing fluid comprising from about 50 percent to in excess of about 96 percent by volume of carbon dioxide with the remainder comprising an aqueous 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 4480696
• OSTI ID: 6043915
• 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)
AQUEOUS SOLUTIONS
CARBON DIOXIDE INJECTION
CHEMICAL COMPOSITION
COLLOIDS
COMMINUTION
DISPERSIONS
EMULSIONS
FLUID INJECTION
FLUIDS
FOAMS
FRACTURING
FRACTURING FLUIDS
HEATING
HYDRAULIC FRACTURING
IN-SITU PROCESSING
MEDIUM TEMPERATURE
MISCIBLE-PHASE DISPLACEMENT
MIXTURES
NATURAL GAS WELLS
OIL WELLS
PROCESSING
PROPPING AGENTS
SOLUTIONS
STABILIZATION
STIMULATION
SURFACTANTS
WELL STIMULATION
WELLS