Process for improving vertical conformance in a near well bore environment
Patent
·
OSTI ID:5767050
An aqueous solution containing a high molecular weight organic polymer and an aqueous solution containing a cross-linking agent are sequentially injected into the near well bore environment of a subterranean formation interposed by a hydrocarbon spacer. The spacer causes the two aqueous solutions to mix in the near well bore environment and a gel is formed which preferentially plugs the relatively highly permeable zones in the near well bore environment thereby improving conformance and flow profiles of fluids subsequently injected into or produced from the formation.
- Assignee:
- Marathon Oil Co.
- Patent Number(s):
- US 4494606
- OSTI ID:
- 5767050
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
AQUEOUS SOLUTIONS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COLLOIDS
CROSS-LINKING
DISPERSIONS
GELS
MIXTURES
OIL WELLS
PERMEABILITY
PLUGGING
PLUGGING AGENTS
POLYMERIZATION
POLYMERS
RESERVOIR ROCK
SOLUTIONS
STIMULATION
WELL STIMULATION
WELLS
020300* -- Petroleum-- Drilling & Production
AQUEOUS SOLUTIONS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COLLOIDS
CROSS-LINKING
DISPERSIONS
GELS
MIXTURES
OIL WELLS
PERMEABILITY
PLUGGING
PLUGGING AGENTS
POLYMERIZATION
POLYMERS
RESERVOIR ROCK
SOLUTIONS
STIMULATION
WELL STIMULATION
WELLS