Wells – Processes – Distinct – separate injection and producing wells
Patent
1991-12-19
1993-05-18
Suchfield, George A.
Wells
Processes
Distinct, separate injection and producing wells
166292, 166293, 166297, 166300, E21B 33138, E21B 4322
Patent
active
052112330
ABSTRACT:
A sand consolidating method is provided for use in a borehole within an unconsolidated or loosely consolidated oil or gas reservoir which is likely to introduce substantial amounts of sand into the borehole and cause caving. After perforating the borehole's casing at an interval of the formation where sand will be produced, an aqueous silicate solution is injected into said interval. Next, a spacer volume of a water-immiscible hydrocarbonaceous liquid is introduced into the interval. Thereafter, a water-miscible organic solvent containing an alkylpolysilicate and inorganic salt or chelated calcium is injected into the interval. A permeability retentive silicate cement is formed in the interval. Injection of the aqueous silicate and organic solvent is continued until the interval has been consolidated by the silicate cement to an extent sufficient to prevent sand migration and thereby prevent caving.
REFERENCES:
patent: 2281810 (1942-05-01), Stone et al.
patent: 3012405 (1961-12-01), Caron
patent: 3437143 (1969-04-01), Cook
patent: 3918521 (1975-11-01), Shavely, Jr. et al.
patent: 4440274 (1984-04-01), Holmes
patent: 4479894 (1984-10-01), Chen et al.
patent: 4489783 (1984-12-01), Shu
patent: 4494606 (1985-01-01), Sydansk
patent: 4513821 (1985-04-01), Shu
patent: 4549608 (1985-10-01), Stowe et al.
patent: 4660640 (1987-04-01), Hoskin et al.
patent: 4669542 (1987-06-01), Venkatesan
patent: 5088555 (1992-02-01), Shu
Hager G. W.
Malone C. A.
McKillop A. J.
Mobil Oil Corporation
Suchfield George A.
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