Patents by Inventor Per Eivind Gramme

Per Eivind Gramme has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7901492
    Abstract: A device in connection with a pipe separator. The pipe separator comprising an extended tubular body (1) with a diameter that is principally the same as or slightly larger than the diameter of the inlet pipe (3) of the pipe separator. A gas manifold (2) is arranged in connection with the inlet pipe. The manifold (2) includes a number of vertical degassing pipes (7), which are connected to the supply pipe (3) immediately ahead of the inlet to the separator and which end in an overlying, preferably slightly inclined gas collection pipe (6). The manifold is designed so that the gas will be diverted up through the vertical degassing pipes and collected in the gas collection pipe (6) for return to the outlet pipe after the separator or transported onwards to a gas tank or gas processing plant or the like.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: March 8, 2011
    Assignee: Norsk Hydro ASA
    Inventors: Per Eivind Gramme, Gunnar Hannibal Lie
  • Patent number: 7803233
    Abstract: A device or arrangement for cleaning a pipe separator (1) in which the separator body (2) includes an extended, tubular body with an inlet (4) and an outlet (5) having essentially the same diameter as the separator body. At the outlet, there is a bend or a loop (3) designed to maintain a fluid level in the separator. Just before the bend, there is an outlet (6) with an outlet pipe (9) for conducting fluid, e.g. water, from the separator. Sand or other particulate materials introduced into the outlet (6) are returned, using a pump (7) arranged on the outlet pipe (9), together with the fluid from the outlet, to the separator after the bend (3) by means of reversal with a valve (8) via a return pipe (11). In connection with the outlet (6), there is a flushing device having a pipe loop (12) connected to the outlet pipe (9) for the return of fluid from the outlet to the nozzles (14) arranged in the outlet.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: September 28, 2010
    Assignee: Norsk Hydro ASA
    Inventors: Per Eivind Gramme, Gunnar Hannibal Lie
  • Patent number: 7730942
    Abstract: A method and equipment for reducing or avoiding multiple dispersions in fluid flows each having two or more non-mixable fluid components with different specific gravities and viscosities, in particular fluid flows of oil, gas and water from different oil/gas production wells (B1-B8) in formations beneath the surface of the earth or sea. The fluid flow from each well (B1-B8), depending on whether it is oil-continuous (o/w) or water-continuous (w/o), is fed to a transport pipeline (T) so that the oil-continuous fluid flows (o/w) are supplied to the transport line (T) first and the water-continuous fluid flows (w/o) second, or the two fluid flows (o/w, w/o) are fed to two separate transport lines (T1, T2). In a preferred embodiment, the two separate transport lines (T1, T2) may be connected to a common transport line (T); the two fluid flows (o/w, w/o) are mixed before further transport and any subsequent separation in a separator.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: June 8, 2010
    Assignee: Norsk Hydro ASA
    Inventors: Per Eivind Gramme, Gunnar Hannibal Lie
  • Patent number: 7617940
    Abstract: A device in connection with a separator for cleaning or reaming such a separator. The separator includes a tank or a body (2) with an inlet and at least one outlet (5, 6). A transport pipeline (3) is connected to the inlet for the supply of fluid that is to be separated in the separator. The transport pipeline (3) extends from the inlet through the separator body (2). Part (6) of the line that is located inside the separator body (2) is provided with perforations or slits (7) so that fluid that arrives in the transport pipeline (3) flows into the tank through the perforations/slits (7). Mechanical equipment for cleaning the transport pipeline (3) is designed to be sent from a magazine through the separator body (2) and on via a pipe loop back to the magazine.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: November 17, 2009
    Assignee: Norsk Hydro ASA
    Inventors: Per Eivind Gramme, Gunnar Hannibal Lie
  • Publication number: 20090145832
    Abstract: A pipe separator for separation of a fluid, in particular separation of fluids with non-mixable fluid components such as oil, gas and water, comprising an extended tubular separator body with a diameter that is principally the same as or slightly larger than the diameter of the inlet pipe and the outlet pipe(s) for the separated components from the separator. The separator body, from the inlet to the outlet(s), has a curved path or course in one or more parts of its longitudinal design.
    Type: Application
    Filed: April 26, 2006
    Publication date: June 11, 2009
    Inventors: Per Eivind Gramme, Gunnar Hannibal Lie
  • Publication number: 20090126927
    Abstract: A method and equipment for reducing or avoiding multiple dispersions in fluid flows each consisting of two or more non-mixable fluid components with different specific gravities and viscosities, in particular fluid flows of oil, gas and water from different oil/gas production wells (B1-B8) in formations beneath the surface of the earth or sea, The fluid flow from each well (B1-B8), depending on whether it is oil-continuous (o/w) or water-continuous (w/o), is fed to a transport pipeline (T) so that the oil-continuous fluid flows (o/w) are supplied to the transport line (T) first and the water-continuous fluid flows (w/o) second, or the two fluid flows (o/w, w/o) are fed to two separate transport lines (T1, T2). In a preferred embodiment, the two separate transport lines (T1, T2) may be connected to a common transport line (T); the two fluid flows (o/w, w/o) are mixed before further transport and any subsequent separation in a separator.
    Type: Application
    Filed: February 10, 2006
    Publication date: May 21, 2009
    Inventors: Per Eivind Gramme, Gunnar Hannibal Lie
  • Patent number: 7516794
    Abstract: A pipe separator for the separation of fluids, for example the separation of oil, gas and water in connection with the extraction and production of oil and gas from formations beneath the sea bed. The pipe separator includes a pipe-shaped separator body (1) with an inlet and outlet that principally corresponds to a transport pipe (4, 7) to which the pipe separator is connected. The pipe separator further includes a pipe bend or loop (2) arranged in the pipe separator or in connection with its outlet to form a downstream fluid seal in relation to the pipe separator body (1), which is designed to maintain a fluid level in the pipe separator, but which also allows the pipe separator (1) and the loop (2) to be pigged.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: April 14, 2009
    Assignee: Norsk Hydro ASA
    Inventors: Per Eivind Gramme, Ivar Haukom
  • Publication number: 20080178915
    Abstract: Device or arrangement for cleaning a pipe separator (1) in which the separator body (2) consists of an extended, tubular body with an inlet (4) and an outlet (5) having essentially the same diameter as the separator body. At the outlet, there's a bend or a loop (3) designed to maintain a fluid level in the separator. Just before the bend, there's an outlet (6) with an outlet pipe (9) for fluid, e.g. water, from the separator. Sand or other particulate materials introduced into the outlet (6) are returned, using a pump (7) arranged on the outlet pipe (9), together with the fluid from the outlet, to the separator after the bend (3) by means of reversal with a valve (8) via a return pipe (11); in connection with the outlet (6), there's a flushing device comprising a pipe loop (12) connected to the outlet pipe (9) for the return of fluid from the outlet to the nozzles (14) arranged in the outlet, designed to flush in a direction downstream of the outlet, any particles having accumulated in the outlet chamber.
    Type: Application
    Filed: March 15, 2006
    Publication date: July 31, 2008
    Inventors: Per Eivind Gramme, Gunnar Hannibal Lie
  • Publication number: 20080156716
    Abstract: A device in connection with a separator for cleaning or reaming such a separator. The separator comprises a tank or a body (2) with an inlet and at least one outlet (5, 6). A transport pipeline (3) is connected to the inlet for the supply of fluid that is to be separated in the separator. The transport pipeline (3) extends from the inlet through the separator body (2). Part (6) of the line that is located inside the separator body (2) is provided with perforations or slits (7) so that fluid that arrives in the transport pipeline (3) flows into the tank through the perforations/slits (7). Mechanical equipment for cleaning the transport pipeline (3) is designed to be sent from a magazine through the separator body (2) and on via a pipe loop back to the magazine.
    Type: Application
    Filed: February 15, 2006
    Publication date: July 3, 2008
    Inventors: Per Eivind Gramme, Gunnar Hannibal Lie
  • Publication number: 20080142414
    Abstract: A method for optimising the use of chemicals, in particular the use of antifoaming agents and emulsion breakers, for gas/oil/water fluid in oil processing plants on the seabed, onshore or offshore. The chemicals are dosed on the basis of the effect they have on the thickness of the foam layer and the emulsion layer, respectively, of the fluid. The fluid may expediently be supplied to and separated in a separator (1); the measurement of the emulsion and foam layers is performed by a measuring device (3), which emits signals to a control device (4), which controls the operation of pumps (5, 6), which, in turn, pump, at all times, the measured quantity of chemical to the fluid to be separated.
    Type: Application
    Filed: February 8, 2006
    Publication date: June 19, 2008
    Inventors: Per Eivind Gramme, Gunnar Hannibal Lie
  • Publication number: 20080134651
    Abstract: A device in connection with a pipe separator, comprising an extended tubular body (1) with a diameter that is principally the same as or slightly larger than the diameter of the inlet pipe (3)/outlet pipe of the separator. A separate gas manifold (2) is arranged in connection with the inlet. The manifold (2) comprises a number of vertical degassing pipes (7), which are connected to the inlet pipe (3) immediately ahead of the inlet to the separator and which end in an overlying, preferably slightly inclined gas collection pipe (6). The gas is designed to be diverted up through the vertical degassing pipes and collected in the gas collection pipe (6) for return to the outlet pipe after the separator or transport onwards to a gas tank or gas processing plant or similar.
    Type: Application
    Filed: March 15, 2006
    Publication date: June 12, 2008
    Inventors: Per Eivind Gramme, Gunnar Hannibal Lie
  • Patent number: 7278543
    Abstract: A device in connection with a separator for separation of a multiphase fluid, including a preferably cylindrical container (1) with an inlet (2), a first outlet (3) for liquid with a higher gravity (for example water), a second outlet (4) for liquid with a lower gravity (for example oil) and a third outlet (5) for gas. A pipe separator (6) is connected to the inlet (2) of the container (1). The pipe separator (6) constitutes a continuation of a supply pipe (7) for supplying the fluid to be separated and extends partially into the container (1).
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: October 9, 2007
    Assignee: Norsk Hydro ASA
    Inventors: Svein Ivar Sagatun, Per Eivind Gramme
  • Patent number: 6691781
    Abstract: 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 into the formation, which can be extremely inefficient due to the high power input required to overcome the large pressure differential between the surface and formation level. A production fluid handling method and apparatus for separating downhole at least gaseous and liquid components (16, 18, 20) of fluid produced from a hydrocarbon bearing formation (12), and reinjecting at least a portion of the gaseous and liquid components (16, 18, 20), as required, back into the formation (12). Re-injection also occurs downhole.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: February 17, 2004
    Assignees: Weir Pumps Limited, Norsk Hydro ASA
    Inventors: Alexander Angus Grant, Per Almdahl, Per Eivind Gramme, Sven Arne Kjolberg, Bjarne Olsen, Terje Sondtvedt
  • Publication number: 20020059866
    Abstract: 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 into the formation, which can be extremely inefficient due to the high power input required to overcome the large pressure differential between the surface and formation level.
    Type: Application
    Filed: September 13, 2001
    Publication date: May 23, 2002
    Inventors: Alexander Angus Grant, Per Almdahl, Per Eivind Gramme, Sven Arne Kjolberg, Bjarne Olsen, Terje Sondtvedt
  • Patent number: 6277286
    Abstract: 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 at a speed through a length of the mainly horizontal section of pipe such that the fluid components are separated and a boundary layer is formed between the fluid components. The fluid components with a lower density are formed in a top part of the mainly horizontal section of pipe and fluid components with a higher density are formed in a bottom part of the mainly horizontal section of pipe. The fluid components with the lower density and the fluid components with the higher density are removed through separate outlets of the mainly horizontal section of pipe.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: August 21, 2001
    Assignee: Norsk Hydro ASA
    Inventors: Terje Søntvedt, Per Eivind Gramme, Hielke Kamps, Per Magne Almdahl