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Alexander Angus Grant, Per Almdahl, Per Eivind Gramme, Sven Arne Kjolberg, Bjarne Olsen, Terje Sondtvedt: Downhole gas/water separation and re-injection. Weir Pumps, Norsk Hydro ASA, Gifford Krass Groh Sprinkle Anderson & Citkowski P C, February 17, 2004: US06691781 (78 worldwide citation)

It is common in oil extraction operations to reinject produced gas and\or water back into hydrocarbon bearing formations in order to maintain formation pressure. Conventional production facilities normally flow all formation fluids to the surface and subsequently reinject the required fluids ba ...


2
Glor Thorvald Mejdell, Sven Arne Kjolberg: Process for precipitation of aluminum hydroxide from aluminate solution. Norsk Hydro, Wenderoth Lind & Ponack, September 20, 1977: US04049773 (17 worldwide citation)

Aluminate mother liquor is passed countercurrent to the direction of feed of aluminum hydroxide crystals through at least two stages, each of which has a lower turbulent zone with a high suspension density and which is agitated under conditions which assure particle growth via crystal growth and an ...


3
Alexander Angus Grant, Per Almdahl, Per Eivind Gramme, Sven Arne Kjolberg, Bjarne Olsen, Terje Sondtvedt: Downhole gas/water separation and re-injection. Gifford Krass Groh Sprinkle Anderson & Citkowski PC, May 23, 2002: US20020059866-A1

It is common in oil extraction operations to reinject produced gas and\or water back into hydrocarbon bearing formations in order to maintain formation pressure. Conventional production facilities normally flow all formation fluids to the surface and subsequently reinject the required fluids back in ...



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