Patents by Inventor Stale Johansen

Stale Johansen 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).

  • Method and apparatus for determining the nature of submarine reservoirs
    Patent number: 7567084
    Abstract: A system for investigating subterranean strata. An electromagnetic field and a seismic event are applied from the same location and the responses are detected using respective receivers both located at a second location spaced from the first. The responses are combined to identify the presence and/or nature of subterranean reservoir. The refracted wave components are used.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: July 28, 2009
    Assignee: Electromagnetic Geoservices AS
    Inventors: Terje Eidesmo, Svein Ellingsrud, Anders Farestveit, Sylvia Sandra Pettersen, legal representative, Stale Johansen, Hans Magne Pedersen
  • Method and apparatus for determining the nature of submarine reservoirs
    Publication number: 20060197532
    Abstract: A system for investigating subterranean strata. An electromagnetic field and a seismic event are applied from the same location and the responses are detected using respective receivers both located at a second location spaced from the first. The responses are combined to identify the presence and/or nature of subterranean reservoir. The refracted wave components are used.
    Type: Application
    Filed: March 17, 2004
    Publication date: September 7, 2006
    Inventors: Terje Eidesmo, Svein Ellingsrud, Anders Farestveit, Hans Pedersen, Stale Johansen
  • Electromagnetic surveying for mapping the content of subterranean reservoirs
    Patent number: 7026819
    Abstract: A method for mapping a submarine or subterranean reservoir by conducting an electromagnetic survey using an electromagnetic field in the form of a wave. An electromagnetic field is applied by a transmitter on the seabed and detected by antennae. The nature of the detected reflected waves is used to determine whether the reservoir contains water or hydrocarbons, which may then be produced from a well that penetrates the reservoir.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: April 11, 2006
    Assignees: Statoil ASA, Norgas Geotekniske Institut
    Inventors: Terje Eidesmo, Svein Ellingsrud, Fan-Nian Kong, Harald Westerdahl, Stale Johansen
  • Method and apparatus for determining the nature of subterranean reservoirs
    Publication number: 20040124842
    Abstract: A system for determining the nature of a subterranean reservoir whose position and geometry is known from previous seismic surveys. An electromagnetic field is applied by a transmitter 18 on the seabed 14 and detected by antennae also on the seabed. The nature of the detected reflected waves is used to determine whether the reservoir contains water or hydrocarbons.
    Type: Application
    Filed: July 22, 2003
    Publication date: July 1, 2004
    Applicant: Den Norske Stats Oljeselskap A.S.
    Inventors: Terje Eidesmo, Svein Ellingsrud, Fan-Nian Kong, Harald Westerdahl, Stale Johansen
  • Method and apparatus for determining the content of subterranean reservoirs
    Patent number: 6628119
    Abstract: A system for determining the nature of a subterranean reservoir 12 whose position and geometry is known from previous seismic surveys. An electromagnetic field 24, 25, 26, 27 is applied by a transmitter 18 on the seabed 14 and detected by antennea 21, 22, 23 also on the seabed 14. The nature of the detected reflected waves 25, 26, 27 is used to determine whether the reservoir 12 contains water or hydrocarbons.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: September 30, 2003
    Assignee: Den Norske Stats Oljeselskap A.S.
    Inventors: Terje Eidesmo, Svein Ellingsrud, Fan-Nian Kong, Harald Westerdahl, Stale Johansen