Enhanced oil recovery methods and systems

Patent · Tue Mar 27 04:00:00 EST 1984

OSTI ID:6604989

Borchardt, J K

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. Methods and systems for enhancing the recovery of oil from subterranean oil-containing formations are also provided. The viscous aqueous polymer solutions of the invention are prepared by polymerizing one or more water soluble polymerizable vinyl monomers in a substantially oxygen-free aqueous solvent and then further diluting the resultant concentrated solution in additional solvent. Such viscous aqueous polymer solutions have improved viscosity properties and increased compatibility with oil well treating fluid additives, especially clay stabilizers.

• Assignee: Halliburton Company
• Patent Number(s): US 4439334
• OSTI ID: 6604989
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
AQUEOUS SOLUTIONS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
DISPERSIONS
DISPLACEMENT FLUIDS
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
MIXTURES
MONOMERS
OIL WELLS
RECOVERY
SOLUTIONS
STIMULATION
SYNTHESIS
VINYL MONOMERS
VISCOSITY
WELL STIMULATION
WELLS