Zhuang block 74 in Wuhaozhuang oilfield in Shengli petroliferous area is a low- permeability one.

胜利油区五号桩油田桩74块为低渗透油田。

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So field experiments of borehole SP logging in the steel cased Wells are made in Daqing petroliferous area.

为此，大庆油区进行了钢套管井井内自然电位测井现场试验。

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The initial results of this criterion applied in the petroliferous area shows it can improve the success ratio of CO_2 stimulation in the low permeability oil reservoir effectively.

油区的初步应用效果表明，该标准可以有效地提高低渗透油藏二氧化碳吞吐的成功率。

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