Firstly, the experimental studies of axial compression and local bearing of fired module perforated brick shale are done.

本文首先进行了烧结页岩模数多孔砖砌体的轴心抗压试验研究和局部均匀受压的试验研究。

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There are many factors to affect identification of oil and gas bearing layers in the sand-shale formation.

在砂泥岩地层中，影响油、气层识别的因素较多，尤其在复杂地质条件下准确识别油气层难度更大。

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In the Es1 Formation in Qikou Sag, the interlaminated coccolith limestone and mudstone develops extensively, in some literature, it is classified as "oil shale" because of the oil bearing.

歧口凹陷古近系沙河街组一段广泛发育颗石灰岩与泥岩的纹层状互层，因其含油而被误认为“油页岩”。

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What if it is right there trapped in oil and natural gas-bearing shale, enough to possibly supply our U.S. needs for centuries?

FORBES: Energy: What's All The Fracking Fuss About?

Hydraulic fracturing pumps many thousands of gallons of mainly water and sand, with a few chemicals, at high pressure into tight gas-bearing shale deposits (hardened muds), creating cracks that allow gas to flow back up the well to the surface ( Shale Shock).

FORBES: The Fracking Solution Is A Good Cement Job

More than 10 drillers have already received Department of Environmental Protection permission to use mine discharges for fracking, a technique in which millions of gallons of water, along with chemical additives and sand, are pumped down a well to break apart gas-bearing shale deposits.

WSJ: Pa. pushes drillers to frack with coal mine water