METHOD AND APPARATUS FOR MEASURING THE ELECTRICAL IMPEDANCE PROPERTIES OF GEOLOGICAL FORMATIONS USING MULTIPLE SIMULTANEOUS CURRENT SOURCES

摘要

A system for measuring geological data is disclosed. The system includes several transceivers distributed over a geographical area. Each of the transceivers has at least one transmitter and at least one receiver. The transceivers are in communication with each other. The receivers are adapted to measure at least one electrical signal. The transmitters are adapted to inject an electrical current into a subsurface area. The transmitters operate simultaneously to inject the electrical current into the subsurface area simultaneously from a number of locations.

主权项

1. A method of obtaining electrical data from a geological formation, comprising:
obtaining a common time reference at each of plural geological data transceivers; transmitting an electrical current into the geological formation from each of the plural geological data transceivers simultaneously based upon the common time reference at each transceiver, the electrical current from each of the plural geological data transceivers being of the same frequency and waveform; and sensing one or more electrical signals as electrical data from the geological formation.