Enhanced oil recovery methods and systems
Patent
·
OSTI ID:5737590
Methods of preparing viscous aqueous polymer solutions having improved viscosity and stability properties for use in the treatment of subterranean hydrocarbon-containing formations and in enhanced oil recovery processes are provided. More particularly, a method of preparing such viscous aqueous polymer solution in a buffer system that contains a particular buffer and a substantially oxygen free aqueous solvent. Such solvent is used for pH control and contains one or more metal salts.
- Assignee:
- Halliburton Co.
- Patent Number(s):
- US 4401789
- OSTI ID:
- 5737590
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
BUFFERS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
DISPLACEMENT FLUIDS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
OIL WELLS
PETROLEUM
POLYMERS
RECOVERY
SYNTHESIS
VISCOSITY
WATERFLOODING
WELLS
020300* -- Petroleum-- Drilling & Production
BUFFERS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
DISPLACEMENT FLUIDS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
OIL WELLS
PETROLEUM
POLYMERS
RECOVERY
SYNTHESIS
VISCOSITY
WATERFLOODING
WELLS