Wells – Processes – Cyclic injection then production of a single well
Patent
1993-05-10
1994-08-30
Suchfield, George A.
Wells
Processes
Cyclic injection then production of a single well
166270, 166292, 166295, E21B 33138, E21B 4322
Patent
active
053418760
ABSTRACT:
A method for the injection of a pre-determined volume of gel below a fracture pressure limit is described. The fracture pressure limit for an unfractured formation is the fracture initiation pressure. The pressure limit for a previously fractured formation is the fracture extension pressure. Initially, a desired gel is injected into a thief zone at a constant rate while maintaining the injection pressure below the limiting fracture pressure. When the injection pressure reaches the formation fracture pressure limit, gel injection is halted for a period of about 3 hours. Afterwards, the bottom hole pressure is allowed to decline and stabilize. Next, gel injection is resumed at the same rate and pressure used prior to halting the injection. If necessary gel injection can be halted when the formation's pressure limit is again reached. After a period of about 3 hours, injection of gel can be again commenced. These steps can be repeated until a pre-determined volume of gel has been placed into the thief zone.
REFERENCES:
patent: 3375872 (1968-04-01), McLaughlin et al.
patent: 3918521 (1975-11-01), Snavely, Jr.
patent: 4479894 (1984-10-01), Chen et al.
patent: 4489783 (1984-12-01), Shu
patent: 4513821 (1985-04-01), Shu
patent: 4565249 (1986-01-01), Pebdani et al.
patent: 4640357 (1987-02-01), Jones
patent: 4735265 (1988-04-01), Hoskin et al.
patent: 4838352 (1989-06-01), Oberste-Padtberg et al.
patent: 4899818 (1990-02-01), Jennings, Jr. et al.
patent: 4903766 (1990-02-01), Shu
patent: 4915170 (1990-04-01), Hoskin
patent: 5002980 (1991-03-01), Phelps et al.
patent: 5215147 (1993-06-01), Grego et al.
Burns James L.
Dicus Bryan J.
Jasti Jayanthi K.
Kendall Jerry J.
Olmos Jose L.
Hager Jr. George W.
Malone Charles A.
McKillop Alexander J.
Mobil Oil Corporation
Suchfield George A.
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