Oil drilling mud dispersant and crude oil emulsification viscosity reduction agent.

原油钻井泥浆分散剂、原油乳化降粘剂。

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Meanwhile, well operators considered drilling a relief well: a diagonal well intersecting the original that could be filled with mud or concrete to block the flowing oil

同时，钻井操作员们考虑钻一条减压井：原来的井斜角交错，钻井里可能充满了泥浆或混凝土块，阻塞了石油的通畅。

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The new well will be used to fill the old one with heavy drilling mud that will press down on the reservoir below, stopping more oil from escaping.

新井的用途是向旧井注入泥浆加重剂，这可以把喷油井压在泥浆的下方，进而防止更多的原油泄漏。

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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.

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Late last year Chevron and deepwater driller Transocean incurred a relatively minor spill of a couple thousand barrels of oil-laced drilling mud at the Frade prospect they were drilling off the coast of Brazil.

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There was in fact a discharge from a drilling rig in March, but the oil people say it consisted of mud containing no substances that would affect the environment.

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