Polysilicate esters for oil reservoir permeability control

Patent · Tue Nov 22 00:00:00 EST 1988

OSTI ID:6338891

Hoskin, D H; Rollman, L D

This patent describes a method of controlling the permeability of a subterranean, oil-bearing formation comprising the following steps: (i) acidifying an aqueous solution of an alkali metal silicate; (ii) reacting the product of step (i) with an organic, hydroxyl group-containing compound; (iii) injecting the polysilicate product of step (ii) into the high permeability region or regions of the formation to decrease the permeability thereof; (iv) injecting into the formation a flooding liquid or subjecting the formation to miscible displacement or thermal oil recovery processes; and (v) recovering the oil from the formation.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4785883
• OSTI ID: 6338891
• Resource Relation: Patent File Date: Filed date 10 Dec 1986
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
OIL WELLS
FLUID INJECTION
POLYESTERS
ROCK-FLUID INTERACTIONS
RESERVOIR ROCK
SILICATES
ACIDIFICATION
ALKALI METAL COMPOUNDS
CHEMICAL PREPARATION
DISPLACEMENT FLUIDS
ENHANCED RECOVERY
MISCIBLE-PHASE DISPLACEMENT
PERMEABILITY
PETROLEUM
THERMAL RECOVERY
WELL STIMULATION
ENERGY SOURCES
ESTERS
FLUIDS
FOSSIL FUELS
FUELS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
POLYMERS
RECOVERY
SILICON COMPOUNDS
STIMULATION
SYNTHESIS
WELLS
020300* - Petroleum- Drilling & Production