Methods of preparation of a oil field drilling mud water - loss control additive with waste PAN fiber hydrolyzed at high pressure had been studied and had tested its properties.

研究了用废腈纶经高压釜中水解制备油田钻井泥浆降失水剂的方法，并进行了性能试验。

youdao

For the scattered small oil field drilling waste water is low, with these devices is a waste, especially in bad road condition.

对于分散的小油田，钻井废水产生量低，配备这些设备是一种浪费，尤其是路况不好的油田。

youdao

The waste water from well drilling and other operations has imposed difficulty in oil field waste water treatment.

钻井和其它作业废水是油田污水处理的一个难点。

youdao

The two attorneys helped negotiate a settlement between Chevron and Ecuador in the 1990s that released it from any liability for billions of gallons of oil waste left over from its drilling operations in that country in the 1970s and 1980s.

FORBES: Kaplan Orders Deposition Of Attorney Donziger in Chevron Ecuador Case

Some background: Donziger has spent more than a decade trying to collect money for Ecuadorean villagers he says have suffered a variety of health problems due to millions of barrels of oil and waste products left behind at drilling sites that Texaco, now part of Chevron, operated until it left the country in 1990.

FORBES: Judge To "Crude" Filmmaker: You're Part Of The Story

Patton Boggs joined the lawsuit by Ecuadorean villagers suing Chevron over toxic drilling waste in the Amazonian jungle last year, but has been stymied in efforts to drag the global oil giant to the bargaining table to settle.

FORBES: Judge Tosses Patton Boggs Suit Over Unpaid Ecuador Bills