...究 驱替效率 采出程度 [gap=2008]Keywords] low permeability；long core displacement；test study；displacement efficiency；degree of reserve recovery ...
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The results indicate that the effect of surfactant concentration on displacement efficiency is determined by its surface characters and total quantity. The injecting time of surfactant has little effect on displacement efficiency.
结果表明 ,表面活性剂浓度对驱油效果的影响取决于表面活性剂的界面特性和总用量 ,加入表面活性剂的时机对最终驱油效果影响不大 ,吸附量大的表面活性剂的驱油效果差。
参考来源 - 稠油油藏蒸汽表面活性剂复合驱数值模拟研究The oil recovery under water drive is an important factor for the evaluation of water displacement efficiency of a reservoir.
油藏水驱开发潜力是分析评价油藏开发开采水平的重要参数。
参考来源 - 模糊综合评判法确定油藏水驱开发潜力·2,447,543篇论文数据，部分数据来源于NoteExpress
Rotating casing is helpful to improve effectively mud displacement efficiency and thus improve cementing quality.
旋转套管可以有效提高水泥浆顶替效率，从而提高固井质量。
How to improve cement slurry displacement efficiency and cementing quality are cementing successful key of the well.
如何提高水泥浆顶替效率及固井质量是该井固井成功的关健。
Adopting helical flow displacement theory can overcome the disadvantage and greatly improve the displacement efficiency.
使用螺旋流顶替理论能克服这一缺点，大大改善顶替效率。
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