Oil productivity index is a direct mark of the production for a producing horizon.

采油指数是油层产出能力的直接标志，用试井的方法获取采油指数极为有限。

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The oil productivity raises gradually after a water shutoff job with RPM conducted.

实施堵水作业后油井产油能力逐渐提高。

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Low permeable reservoir is mainly featured by small reservoir pore, fine throat, high filtration resistance, low oil productivity and low water absorbing capacity.

低渗透油藏的主要特点是储层孔隙小、喉道细、渗流阻力大，油井产油能力和吸水能力都非常低。

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New fracking methods are transforming oil and gas extraction productivity, providing access to at least 167 shale oil and gas field deposits that are distributed among several states.

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These new methods are transforming oil and gas extraction productivity.

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"That's why we've been seeing the most rapid productivity rise since the oil shocks of 1974, " says Hausman.

FORBES: Rational Exuberance