Used as additive for under-well fracturing in petroleum mining.

石油开采用于井下压裂的添加剂。

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Fracturing fluids and propping agents are the essential materials for CBM well fracturing to increase yield.

压裂液和支撑剂是煤层气井压裂增产措施的基本材料。

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According to the fuzzy decision principles, this paper gives an optimum selection for well fracturing design programs.

依据模糊决策方法，对压裂设计方案进行了优选。

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So successful, in fact, that it has been adopted as the disclosure reporting regime by about a dozen significant oil and natural gas producing states, and is being considered for adoption by the Department of Interior as a part of its own pending regulation on hydraulic fracturing and well completions.

FORBES: Harvard's Frack Disclosure Study Earns an 'F'

"Hydraulic fracturing in a well for shale gas development, which involves injection of fluids to fracture the shale and release the gas up the well, has been confirmed as the cause for small felt seismic events at one location in the world, " the report states.

CNN: Debate over fracking, quakes gets louder

The one important fact is that fracturing of an individual well emits relatively small amounts of volatile compounds, the material of concern, and some wells emit none at all.

FORBES: Why Anti-Fracking Groups Are Shifting Their Story From Water To Air Quality