Wells – Processes – Cementing – plugging or consolidating
Patent
1991-05-28
1992-09-29
Novosad, Stephen J.
Wells
Processes
Cementing, plugging or consolidating
166295, E21B 33138
Patent
active
051507544
ABSTRACT:
A method to prevent damage to a water-sensitive hydrocarbonaceous fluid-producing zone of a formation which is penetrated by a well which has a water-influx problem. A gellable petroleum mixture is injected into the well where it forms a solid hydrophobic gel in situ sufficient to temporarily close pores in the water-sensitive zone. The mixture is allowed to remain in the water-sensitive zone for a time sufficient to form a solid gel so as to preclude fluid entry into the water-sensitive zone. Afterwards, an aqueous based gel mixture is injected into the water-influx zone where it forms a solid hydrophilic gel which is substantially stable thereby precluding fluid entry into the well. Subsequently, the solid petroleum gel degrades at formation conditions and opens the water-sensitive zone to production of hydrocarbonaceous fluids. Thereafter, substantially water-free hydrocarbonaceous fluids are produced from the water-sensitive zone.
REFERENCES:
patent: 2270006 (1942-01-01), Kennedy
patent: 2708974 (1955-05-01), Fischer et al.
patent: 2906338 (1959-09-01), Shook
patent: 2978024 (1961-04-01), Davis
patent: 3064730 (1962-11-01), Malone et al.
patent: 3237690 (1966-03-01), Karp et al.
patent: 3368624 (1968-02-01), Heuer, Jr. et al.
patent: 3386514 (1968-06-01), Weber
patent: 3498380 (1970-03-01), Sparlin et al.
patent: 3923100 (1975-12-01), Bellos et al.
patent: 3939912 (1976-02-01), Sparlin et al.
patent: 4716966 (1988-01-01), Shu
patent: 5002127 (1991-03-01), Dalrymple et al.
patent: 5067564 (1991-11-01), Sydansk
Phelps Craig H.
Strom E. Thomas
Malone C. A.
McKillop A. J.
Mobil Oil Corporation
Novosad Stephen J.
Speciale C. J.
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