In situ seismic shockwaves stimulate oil production

A new technology uses seismic pulses to mobilize oil left behind in reservoirs. Developed by Applied Seismic Research Inc. (ASR), Plano, Tex., the in situ seismic stimulation (ISS) creates elastic waves of high-energy (up to 10 Mw) and low-frequency that dislodge immobile oil droplets and coalesce oil films.The ISS tool increased oil recovery by as much as 30%, as shown by production from wells in the Lost Hills field in California. In another trial in the Strawn sand in Texas, the tool improved the injectivity index of wells that were as far as 11/2 miles away from the well with the ISS tool.Tool features Click here to enlarge imageThe ISS tool is similar to a tubing pump, powered at su...

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