E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/22 (2006.01) E21B 33/138 (2006.01)
Patent
CA 2387546
Fluid profile in an oil field waterflood operation is controlled after water breakthrough occurs by injecting a hydrate forming hydrocarbon gas into the highly permeable breakthrough zone. The injected gas on contact with water in the breakthrough zone forms a solid gas hydrate to restrict fluid flow in the breakthrough zone.
Conocophillips Company
Osler Hoskin & Harcourt Llp
Phillips Petroleum Company
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