Plugging a subterranean reservoir with a self-sealing filter cak

Details Plugging a subterranean reservoir with a self-sealing filter cak Plugging a subterranean reservoir with a self-sealing filter cak

1975-10-10

1976-12-21

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166295, E21B 33138

Patent

active

039982696

ABSTRACT:
A subterranean reservoir is plugged by injecting a suspension containing solid particles of a resin capable of softening and resolidifying at the reservoir temperature. The particle sizes are correlated with the reservoir pore sizes so that particles are screened-out within and along the face of the reservoir formation. And, the particle compositions are correlated with the reservoir temperature so that the screened-out particles in and along the reservoir formation become fused into a substantially impermeable layer.

REFERENCES:
patent: 2356302 (1944-08-01), Chapman
patent: 2556169 (1951-06-01), Crouch et al.
patent: 2570892 (1951-10-01), White
patent: 2986538 (1961-05-01), Nesbitt et al.
patent: 3208525 (1965-09-01), Caldwell et al.
patent: 3241613 (1966-03-01), Kern et al.
patent: 3316966 (1967-05-01), Dear, Jr.
patent: 3724549 (1973-04-01), Dill
patent: 3830299 (1974-08-01), Thomeer
patent: R23393 (1951-07-01), Kurtz, Jr. et al.

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