Process for secondary recovery

Patent · Tue Apr 27 00:00:00 EDT 1982

OSTI ID:5238580

Hunter, W D

Hydrocarbons are recovered from a subterranean hydrocarbon bearing formation penetrated by an injection well and a production well by displacing hydrocarbons toward the production well using a drive fluid such as water thickened with polyacrylamide or partially hydrolyzed polyacrylamide or the sodium, potassium or ammonium salt thereof and a minor amount of polyacrylamide or partially hydrolyzed polyacrylamide or the sodium, potassium or ammonium salt thereof alkoxylated with an alkylene oxide. Optionally, the drive fluid can be saturated with carbon dioxide and/or natural gas at the injection pressure. An aqueous fracturing fluid containing a small amount of alkoxylated polyacrylamide or partially hydrolyzed polyacrylamide is also described.

• Assignee: Texaco Development Corp
• Patent Number(s): US 4326969
• OSTI ID: 5238580
• Resource Relation: Patent File Date: Filed date 21 Apr 1980; Other Information: PAT-APPL-142550
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
OIL WELLS
WATERFLOODING
ADDITIVES
AQUEOUS SOLUTIONS
ENHANCED RECOVERY
INJECTION WELLS
PETROLEUM
POLYAMIDES
SURFACTANTS
WELL STIMULATION
DISPERSIONS
ENERGY SOURCES
FLUID INJECTION
FOSSIL FUELS
FUELS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
RECOVERY
SOLUTIONS
STIMULATION
WELLS
020300* - Petroleum- Drilling & Production