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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 ...


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Knut Ingvar &angst sen, Erik Sandvold: Process for generating power including a combustion process. Norsk Hydro ASA, Wenderoth Lind & Ponack L, October 9, 2001: US06298664 (43 worldwide citation)

The present invention relates to a process for generating power and/or heat in a combustion process having a fuel combusted with an oxygen-containing gaseous mixture as an oxidant supplied from a mixed conducting membrane capable of separating oxygen from oxygen-containing gaseous mixtures at elevat ...


4
Knut Ingvar &angst sen, Erik Sandvold, Petter Inge Longva: Process for generating power and/or heat comprising a mixed conducting membrane reactor. Norsk Hydro Asa, Wenderoth Lind & Ponack L, May 29, 2001: US06237339 (40 worldwide citation)

The present invention relates to a process for generation of heat and/or power comprising a membrane reactor where a fuel is oxidized and further comprising an improved method for reducing emissions of carbon dioxide and emission of oxides of nitrogen from said process. There is applied a membrane r ...


5
Terje SĂžntvedt, Per Eivind Gramme, Hielke Kamps, Per Magne Almdahl: Method and device for the separation of a fluid in a well. Norsk Hydro ASA, Wenderoth Lind & Ponack L, August 21, 2001: US06277286 (34 worldwide citation)

A method and device for separating a fluid from a formation into several fluid components in a well is disclosed. The method and device include feeding the fluid into a mainly horizontal section of pipe located in a down-hole, mainly horizontal section of the well, such that the fluid is set to flow ...


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Rune Wendelbo, Duncan E Akporiaye, Anne Andersen, Martin Ivar Dahl, Helle Brit Mostad, Terje Fuglerud, Steinar Kvisle: Microporous crystalline silico-alumino-phosphate composition, catalytic material comprising said composition and use of these for production of olefins from methanol. Norsk Hydro ASA, Wenderoth Lind & Ponack L, January 1, 2002: US06334994 (31 worldwide citation)

Microporous crystalline silico-alumino-phosphate (SAPO) compositions, catalytic materials comprising the composition, and use of these for production of olefins from methanol. The catalysts contain silico-alumino-phosphate materials with AEI/CHA-mixed phase composition. The catalysts have prolonged ...


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Henrik O Fjellhaug, Henning Reier Nilsen, Werner Soyez, Michel Saigne: Process for generating electric energy, steam and carbon dioxide from hydrocarbon feedstock. Norsk Hydro ASA, Wenderoth Lind & Ponack L, January 14, 2003: US06505467 (30 worldwide citation)

A process producing electric energy, steam and carbon dioxide in concentrated form from a hydrocarbon feedstock. The process includes forming synthesis gas in an air driven autothermal reactor unit (ATR), heat exchanging the formed synthesis gas and thereby producing steam, treating at least part of ...


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Roald Helland Pedersen: Energy absorbing device. Norsk Hydro Asa, Wenderoth Lind & Ponack L, April 16, 2002: US06371541 (28 worldwide citation)

An energy absorbing device, for use in a vehicle to absorb impact energy, includes an attachment bracket for fastening a bumper member to a vehicle frame. The bracket includes at least two energy absorbing walls that have apertures to accommodate bolts. Upon a collision, the bolts shear the bracket ...


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Knut Ingvar &angst sen, Kjersti Wilhelmsen, Tor Bruun: Method for recovering CO2. Norsk Hydro ASA, Wenderoth Lind & Ponack L, July 27, 2004: US06767527 (27 worldwide citation)

A method for recovering substantially all carbon dioxide generated in a combustion process where the method comprises the following steps: a) a sweep gas is used to pick up oxygen on the permeate side of a mixed conducting membrane in a first stage which is capable of separating oxygen from a hot ai ...


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Svein Erling Johnstad: Geophysical data acquisition system. Norsk Hydro ASA, Wenderoth Lind & Ponack L, November 18, 2008: US07453763 (24 worldwide citation)

The invention includes a geographical sensor apparatus for use under water in the sea, including a plurality of seismic sensors (1) for sensing seismic waves associated with underground formations, and a plurality of EM-sensors constituted preferably by electrodes (4) for sensing electromagnetic wav ...



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