Method and appparatus for surveying and monitoring a hydrocarbon reservoir.

摘要

A method of monitoring a fluid reservoir traversed by at least one well comprised the following steps: at least one electrode is connected to the surface and fixed in permanent manner in the well under conditions isolating the section of the well in which it is located hydraulically from the rest of the well and providing electrical coupling between the electrode and the reservoir; a current is passed through the reservoir; and an electrical parameter is measured, whereby a characteristic representative of the reservoir can be deduced. <IMAGE>