EOR by elecro-acoustic reservoir stimulation: A new approach ///

The following discussion explains and illustrates the technology of introducing alternating current, plus vibration created by a downhole “hammer” to increase the mobility of crude within the reservoir surrounding the wellbore. Following the technical description of the process, results of field tests in Brazil, Texas and heavy oil in Venezuela are presented. The industry has, for decades, put a tremendous effort into developing means to improve production and recovery rate from land- and offshore-based oil reservoirs due to the simple fact that most of the oil is left in the reservoir when the field is abandoned. As oil is the world’s most important commodity, any contribution in harvesting more of this valuable resource is welcome. To this end, Eureka Oil ASA, a Norwegian company, is dedicated to developing an EOR technology invented by engineer Olav Ellingsen in 1986.

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