Wells – Processes – Placing or shifting well part
Patent
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.
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patent: 2891623 (1959-06-01), Boss
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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.
Hager Jr. George W.
McKillop Alexander J.
Mobil Oil Corporation
Novosad Stephen J.
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