An experimental study was conducted about recovery efficiency on Brine flooding and Alkaline, Surfactant, Polyacrylamide flooding (ASP) in modeling Daqing Oil Field stratum.

在模拟大庆油田地层条件下，进行了水驱以及碱-表面活性剂-聚合物(asp)三元复合体系驱油效率的实验研究。

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"The mineral stratum is articulated by a continuous roof which cantilevers over the entry plaza and folds down over the interior soccer field," they added.

“矿物岩层由连续屋顶连接，大跨度屋顶铰接悬臂结构从入口广场延伸到室外足球场直至地面。”他们补充道。

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The results indicated that the field in the stratum is composed of a series of cylinder wave which has the attenuation different from the country rock.

结果表明，层中波场由一系列柱面波组成，其衰减特性与围岩中的规律不同。

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