Method of removing polymer gels from a petroleum reservoir

Details Method of removing polymer gels from a petroleum reservoir Method of removing polymer gels from a petroleum reservoir

1990-02-07

1991-01-22

Suchfield, George A.

Wells

Processes

Chemical inter-reaction of two or more introduced materials

1663051, 166312, 252 8551, 252 8552, E21B 3700, E21B 4322

Patent

active

049863568

ABSTRACT:
When used as occlusion agents or to cause fractures in a petroleum reservoir, polymer gels crosslinked with polyvalent metal ions can be removed by the use of special complexing agents.

REFERENCES:
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patent: 3522844 (1970-08-01), Abdo
patent: 4083407 (1978-04-01), Griffin, Jr. et al.
patent: 4096914 (1978-06-01), McLaughlin et al.
patent: 4488601 (1984-12-01), Hammett
patent: 4609475 (1986-09-01), Halon et al.
patent: 4648456 (1987-03-01), Lamb et al.
patent: 4770796 (1988-09-01), Jacobs
patent: 4809781 (1989-03-01), Hoefner

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