Method and apparatus for controlling steam breakthrough in a wel

Details Method and apparatus for controlling steam breakthrough in a wel Method and apparatus for controlling steam breakthrough in a wel

1993-07-28

1994-10-25

Novosad, Stephen J.

Wells

Processes

Placing or shifting well part

166205, 166272, 166387, 166181, 2771673, 277236, E21B 4324, E21B 4308, E21B 4312, E21B 33124

Patent

active

053580540

ABSTRACT:
A method and apparatus for controlling the intrusion of steam (e.g. breakthrough) from a zone of a producing formation into a slotted liner of a gravel-packed, production well of a steam flood recovery operation. An assembly including a blank, scab conduit is lowered into the upper portion of the slotted liner to effectively block those openings in the slotted liner which lie adjacent the steam intrusion zone. A seal, (e.g. deformable metal seal, metal seal rings, etc.) is provided at the upper end of the blank conduit to block upward flow between the liner and blank conduit when the blank conduit is in place. In a further embodiment, a second set of seals can be provided to block the downward flow of steam between the blank conduit and the slotted liner.

REFERENCES:
patent: 2174795 (1939-10-01), Layne
patent: 2185522 (1940-01-01), Rollins
patent: 2891623 (1959-06-01), Boss
patent: 3930538 (1976-01-01), Brennan et al.
patent: 4114687 (1978-09-01), Payton
patent: 4368781 (1983-01-01), Anderson
patent: 4508172 (1985-04-01), Mims et al.
patent: 4640359 (1987-02-01), Livesey et al.
patent: 4645005 (1987-02-01), Ferguson
patent: 4753293 (1988-06-01), Bohn
patent: 4942923 (1990-07-01), Geeting
patent: 5215147 (1993-06-01), Grego et al.
Catalog 1) "Hanger Packer/RHR Scab Liners", Brown Oil Tools, p. 1449, Composite Catalog of Oil Field Equipment & Services, 1982-83, World Oil, Gulf Publishing Co.
Catalog 2) "Liner Drill-in Tools"; Liner Drill-in and Gravel Pack Method; Sand Control Adapters; and Steel Flare Sand Control Adapter all for Chancellor Oil Tool, Inc., Bakersfield, Calif; circa 1993.

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