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Topic - David Xu
Oil companies from China, Norway, Japan and other nations are investing billions of dollars in U.S. shale projects so they can learn how to extract oil and gas from bedrock and use those technologies to tap into the large and mostly undeveloped shale deposits outside the U.S.
Another big difference is that much of the shale in China is mixed with clay — rather than brittle bedrock in the U.S. — which makes the fracking process more difficult, Mr. Xu said.
"Techniques used in the U.S. may not be appropriate at these sites," said Mr. Xu, so even after learning through their joint ventures in the U.S., Chinese oil companies likely will have to develop techniques to tap into their own reserves.