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