Water-flooding can improve crude oil production and recovery factor.

油田注水开采能够增加原油产量和提高采收率。

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Daqing crude oil production using a high viscosity index base oil and 25 oil-based transformer oil, add antioxidant, anti-rust additives, such as by modulation.

采用大庆原油生产的高粘度指数基础油和25号变压器油为基础油，加入抗氧、防锈等多种添加剂调制而成。

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Meanwhile, the cost of crude oil production also surged in Saudi Arabia, the world's largest exporter of crude oil, making stabilization of international oil prices less likely.

与此同时，世界上最大的原油出口国——沙特阿拉伯的原油生产成本激增，使得维持国际油价稳定变得更加不太可能。

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While total crude oil production rose by 1%, Shell said that gas production had fallen 6%.

BBC: NEWS | Business | Shell gains on refining margins

Yes indeed, thanks to fracking, crude oil production in the United States is surging.

FORBES: President Obama Gets It: Fracking Is Awesome

Crude oil production accounted for more than three-fourths of Exxon's profit during the quarter.

NPR: Record Profits at Oil Companies Draw Criticism