Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Process for improving conformance and flow profiles in a subterranean formation

Patent ·
OSTI ID:5826019

An aqueous caustic solution and an aqueous solution containing a polyvalent cation dissolved therein 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 an insoluble precipitate is formed which preferentially reduces the permeability of 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 4304301
OSTI ID:
5826019
Country of Publication:
United States
Language:
English

Similar Records

Process for improving conformance and flow profiles in a subterranean sandstone formation
Patent · Tue Sep 08 00:00:00 EDT 1981 · OSTI ID:5784945
Process for improving vertical conformance in a near well bore environment
Patent · Mon Jan 21 23:00:00 EST 1985 · OSTI ID:5767050
Process for selectively reducing the fluid injection rate or production rate of a well
Patent · Mon Feb 27 23:00:00 EST 1984 · OSTI ID:6804140

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
AQUEOUS SOLUTIONS
BOREHOLES
CAUSTIC FLOODING
CAVITIES
DIRECTIONAL DRILLING
DISPERSIONS
DRILLING
ENERGY SOURCES
FLUID FLOW
FLUID INJECTION
FOSSIL FUELS
FUELS
GEOPHYSICAL SURVEYS
INJECTION WELLS
MATERIALS
MIXTURES
NATURAL GAS WELLS
OIL WELLS
PERFORMANCE TESTING
PETROLEUM
PLUGGING
SOLUTIONS
STEMMING MATERIALS
SURVEYS
TESTING
WATERFLOODING
WELL SERVICING
WELL SPACING
WELLS