The oil layer reformation measure is frequent when the development of a field enters the mid-and-late part stage, meets drilling plug construction frequently.

油田开采进入中后期，油层改造措施频繁，经常遇到钻塞施工。

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The company is drilling two relief Wells to permanently plug the leak. The first is not expected to be finished until at least the middle of next month.

该公司为了彻底封堵漏油正在钻两个减压井，第一口井预计至少到8月中才能完工。

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Using cement slurry to support the hole walls and plug the leaky zones is one of the effective ways in drilling construction to deal with the troublesome zones.

水泥浆护壁堵漏是钻探施工对付复杂地层的有效方法之一。

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And in some regions, cottonseed hulls are processed into oil-drilling mud, a sticky, industrial-strength type of Play-Doh that is used to plug leaks in oil wells.

NPR: Texas Cotton: 'Farmer Profits at Every Step'