Patent · US Expired

Method and apparatus for determining the nature of subterranean reservoirs

US7038456B2 · kind B2 · utility

24Cited by

7References

48Claims

0Family size

Assignee

ELECTROMAGNETIC GEOSERVICES ASA · NO

Inventors

Svein Ellingsrud · Trondheim, NO
Terje Eidesmo · Trondheim, NO
Tor Schaug-Pettersen · Trondheim, NO

Key dates

Filing date	Aug 2, 2001
Grant date	May 2, 2006
Priority date	—
Expiry date	Apr 6, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG01V3/12
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A system for detecting or determining the nature of a subterranean reservoir. An electromagnetic field is applied using a dipole antenna transmitter and this is detected using a dipole antenna receiver. The measurements are taken with the antenna both in-line and parallel and the difference between the two sets of measurements is exploited. A characteristic difference indicates a high resistive layer, which corresponds to a hydrocarbon reservoir.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.