Patents Represented by Attorney, Agent or Law Firm Patterson, Tuente, Skaar & Christensen, P.A.
  • 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