Conventional oil shale mining method has higher coat because of restricting by a good many factors.

常规油页岩开采方法，由于受诸多因素限制成本较高。

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Mining method of oil extraction by the open and underground mining.

石油的开采办法由露天开采和地下开采。

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Oil exploitation mining method is facing a great challenge: changing from Steam Air gorge and Disgorge (SAGD) to a new method, it is a inevitable need for the new dynamic test.

石油开采面临由蒸汽吞吐向新的开采方式(SAGD，蒸汽驱)转换的巨大挑战，新的动态测试方式是必然需要。

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