Darcy's law indicates that formation pressure of an oil well has some correlativity with wellbore fluid producing volume and bottom hole flowing pressure.

达西定律表明，油井地层压力与井筒产液量和井底流压具有相关性。

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The tool also can be used for evaluation of formation oil saturation and formation flooding degree perfectly in an old producing well.

在已投入生产的老油井中，能够较好地评价储层的剩余油饱和度及水淹程度；

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Hot water, steam, or gas is injected into the producing formation to lower the viscosity of the oil and force it through the reservoir toward producing Wells.

向产层注入热水、热蒸汽或热气体，以降低油的粘度，并将油经储层压向生产井。

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In 1960, representatives of oil-producing countries finished a meeting in Baghdad which led to the formation of the Organization of Petroleum Exporting Countries (OPEC).

CNN: Monday,