Different characteristic of oil bearing strata, especially permeability contrast can arise fingering of the water oil frontal during waterflooding stage in a regular multilayer reservoir.

常规多层油藏在注水开发时由于各储层物性差异特别是渗透率的差异，会引起各储层油水前缘的指进现象。

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For the reservoir from continental sedimentation water saturation of the oil bearing zone should be derived from irreducible water resistivity.

对陆相沉积油藏而言，只有用束缚水电阻率求解油层的含水饱和度才是正确的。

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For sandstone reservoir, the acoustic impedance of gas-bearing sandstone is lower than that of oil - and water-bearing sandstone, gas in reservoir may be directly recognized by using this difference.

对于砂岩储层，含气砂岩的声阻抗比含油和含水砂岩的声阻抗低，利用这种差异可以直接识别储层中气体。

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Operated by Anadarko with 30%, that well was another monster, going down more than 31, 000 feet in 5, 800 feet of water, and discovering a remarkable 1, 000 feet of oil-bearing rock with very promising reservoir properties.

FORBES: Tiny Dallas-Based Oil Company Scores Two Giant Deepwater Discoveries In One Week