Westerngeco L.l.p.

Petromarker A.s.

Tracy Campbell

Graham Paterson Birkett

Jostein Kjerstad

First electromagnetic data is acquired for a subterranean structure using a first survey technique, and second electromagnetic data is acquired for the subterranean structure using a second, different survey technique in which static positioning of at least one electromagnetic source is employed. The first and second electromagnetic data are combined to characterize the subterranean structure.

Combining different electromagnetic data to characterize a subterranean structure

A method for measuring a resistivity of a subsurface formation that includes transmitting continuously a signal at a first fundamental frequency at full power for a first period of time within a single window of time causing electromagnetic energy to propagate in the subsurface formations, transmitting continuously the signal at a second fundamental frequency at full power for a second period of time within the single window of time causing electromagnetic energy to propagate in the subsurface formations, measuring variations in the electromagnetic energy propagated through the subsurface formations at receivers at the first and the second fundamental frequencies, and determining the resistivity of the subsurface formations using the measurements of the variations in electromagnetic energy at the receivers.

Growing community of inventors

Baku, Azerbaijan

Tracy Campbell