Temporary plugging technology is one of the valid methods of reservoir protection during the workover job.

暂堵技术是在修井作业过程中保护油气层的一种有效方法。

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Fishing technique in horizontal well has always been the tackling key problem for workover engineers and it is also the difficulty in workover job.

水平井打捞技术一直是修井工程师们努力攻关的方向，也是修井作业的难点。

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Workover is a very important job to maintain normal productivity of oil and gas well from start-up to depleted period and increase EOR.

修井是维护油气井从投产之日起直至枯竭这段时期内的正常生产能力，并提高油气井的最终采收率的一项重要的工艺。

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