Rate controllable gel for conformance improvement treatment in a subterranean hydrocarbon-bearing formation
Patent
·
OSTI ID:6939223
This patent describes a process for placement of a gel in a subterranean formation by gelling a gel precursor solution in situ. It comprises: providing the gel precursor solution comprising a polymer, a gelling agent, and a liquid solvent, wherein the polymer comprises a plurality of acrylamide monomers and a plurality of hydrolyzable ester monomers; injecting the solution into the subterranean formation; hydrolyzing at least some of the plurality of ester monomers to form a carboxylate group on each hydrolyzed ester monomer; and crosslinking a plurality of the carboxylate groups by means of the gelling agent to form the gel.
- Assignee:
- Marathon Oil Co., Findlay, OH (United States)
- Patent Number(s):
- US 5133408; A
- Application Number:
- PPN: US 7-708538
- OSTI ID:
- 6939223
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
023000 -- Petroleum-- Properties & Composition
ACRYLAMIDE
AMIDES
CARBOXYLATION
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COLLOIDS
DISPERSIONS
DRILLING FLUIDS
FLUID INJECTION PROCESSES
FLUIDS
GELS
HYDROCARBONS
KINETICS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
POLYMERS
PRECURSOR
REACTION KINETICS
RESERVOIR ROCK
STIMULATION
WELL STIMULATION
WELLS
020300* -- Petroleum-- Drilling & Production
023000 -- Petroleum-- Properties & Composition
ACRYLAMIDE
AMIDES
CARBOXYLATION
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COLLOIDS
DISPERSIONS
DRILLING FLUIDS
FLUID INJECTION PROCESSES
FLUIDS
GELS
HYDROCARBONS
KINETICS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
POLYMERS
PRECURSOR
REACTION KINETICS
RESERVOIR ROCK
STIMULATION
WELL STIMULATION
WELLS