Selective plugging of permeable water channels in subterranean formations

Patent · Tue Aug 13 04:00:00 EDT 1968

OSTI ID:5830551

Eaton, B A

A method is described for selectively plugging the permeable water channels of a subterranean formation. It consists of a treatment in which there is successively introduced into the formation (1) an aqueous solution of a first reactant material rendered more viscous than the subsequently injected liquids by the addition of a viscosity increasing agent; (2) a low viscosity inert aqueous spacer liquid; and (3) a low viscosity aqueous solution containing a second reactant material which, on contact, will react with the first reactant to produce an insoluble precipitate. (20 claims)

• Assignee: Union Oil Co California
• Patent Number(s): US 3396790
• OSTI ID: 5830551
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
CHANNELING
FLUID INJECTION
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NATURAL GAS FIELDS
OIL FIELDS
PERMEABILITY
PETROLEUM DEPOSITS
PLUGGING
PRECIPITATION
RESERVOIR ROCK
RESOURCES
SEPARATION PROCESSES