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Why Sand Is the Oil Industry's Bellwether - Wall Street Journal
Why Sand Is the Oil Industry's Bellwether Wall Street Journal An average well at the time required some 3,000 tons or so as a “proppant”—a material to hold open tiny cracks in the rock that allow oil and gas to flow out of it. These days industry experts use about 50% more sand per well, but they use less sand ... |
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