The Shanbei oil pool in Jiuxi basin with sandstone reservoir beds of the Huoshaogou Formation of the Eogene, has long been taken as an example of hydrodynamically trapped oil pools.

酒西盆地单北油田下第三系火烧沟组砂岩油藏长期以来被认为是水动力圈闭油藏的范例。

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The influence of percentage of gas in oil, slope of side plate, effective bulk modulus, and centrifugal force and gear pair vibration on trapped oil pressure is studied by numerical simulation.

采用数值模拟方法研究了含气比，侧板倾斜，有效体积模量，离心力和齿轮副的振动等因素对困油压力的影响。

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The simulation model of the trapped oil pressure is established in the paper, and the model is divided into static model and dynamic model according to with or without dynamic factor of gear pair.

依据模型中是否考虑齿轮副的动力学分析，将困油模型分为静态模型和动态模型。

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The black substance that trapped the animals came out of the Earth as oil.

VOA: special.2010.04.07

The process involves pumping water containing small percentages of other materials into the porous shale under pressure to hydraulically fracture it and release the trapped oil and gas.

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The trapped oil was consumed in about 28 minutes.

WHITEHOUSE: Press Briefing on Oil Spill in Gulf of Mexico

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

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