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- stage displacement efficiency 阶段驱油效率
- 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。
- The relative average error between predicted oil displacement efficiency and actual value is 8.7%, the accuracy meets demand of production. 驱油效率实际值与预测值平均相对误差8.;7%25，精度满足生产要求。
- A compounded system mainly composed of petroleum sulfonate was developed and then an oil displacement efficiency experiment was carried out. 通过大量的室内实验,研制出以石油磺酸盐为主剂的复配体系,并开展了驱油效率实验。
- Moreover slag MTC technique is also possessed of the advantages as raising displacement efficiency and cement job quality,etc. 此外矿渣MTC技术还具有提高顶替效率及固井质量等优点 .
- 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。
- The turbulator can be used to improve the centralization of the casing strings, to allow the fluid to form spiral flow, as well as to improve the displacement efficiency. 使用旋流扶正器既可提高套管的居中度,又可对流体进行导流而形成螺旋流,还可以提高环空水泥浆对泥浆的顶替效率。
- This paper studies the factors including injection pattern, injection procedure and slug size which influence the displacement efficiency of loam flooding. 针对影响泡沫复合驱驱油效率的注入方式、注入程序及段塞大小等重要因素进行了一系列的研究。
- The mechanism and the extent of action of polymer solution's depleted layer effect and viscoelastic effect on displacement efficiency and sweep coefficient . 通过聚合物溶液在不同模型中的驱油实验，研究了聚合物溶液的衰竭层效应和粘弹性效应对驱油效率和波及系数的作用机理和作用程度。
- It results in changing the downhole flow field and flow status when the energy field passes through the liquid and attenuates，and it improves the displacement efficiency. 这些能量场在液体中传递并衰减，就造成了井下流场和流态的变化，改善了驱替效果。
- The plugging ability and displacement efficiency of sodium silicate under high temperature and high salinity are studied with the application of physical simulation of cores. 采用岩心物理模拟方法，研究了水玻璃在高温、高矿化度下的封堵能力及驱油性能。
- Slurry displacement efficiency is an important stage to improve cementing quality,but there is not any methods, which can displace mud,especia1ly mud cake from borehole comp1etely before now. 替净是提高固井质量的一个重要前提。然而目前所具有的方法，还不能将钻井液，尤其是不能把滤饼清除干净，严重影响了水泥环的胶结强度。
- The casing offcenter is a key factor to effect the displacing efficiency. 套管偏心是影响顶替效率的关键因素。
- The two microscopic models and core flooding results indicated that Gemini surfactants solution have high oil displacement efficiency and wettability of solid surface also influences oil displacement efficiency a lot. 结合两种微观模型和岩心驱油结果表明,双子表面活性剂具有很高的驱油效率; 润湿性对驱油效率具有很大的影响;
- The investigation results in this part would provide the theoretical and practical guide for employing cationic Gemini surfactants to change the wettability of reservoir, so as to enhance oil displacement efficiency. 通过本部分的研究,为运用阳离子双子表面活性剂改变油藏岩石润湿性,从而有利于提高驱油效率提供了理论和实践方面的指导。
- It should have high density so as to balance pressure and improve the displacement efficiency in the well cementation for more and more high-density drilling fluid used in complex deep wells. 由于复杂深井中高密度钻井液的使用越来越多,因此在固井中为平衡压力、提高顶替效率,要求隔离液也有相应的高密度。
- There are many spotlights on the stage. 舞台上有很多聚光灯。
- This paper uses reservoir numerical simulation method to study the effect of injection rate on the displacement efficiency of polymer flooding and analyzes the reason of the effect. 运用油藏数值模拟方法研究了注入速度对聚合物驱油效果的影响，并对注入速度影响聚合物驱效果的原因进行了分析。
- Please dim out the stage for the final scene. 请在最后一场即将开演时使舞台灯光转暗。
- The singer was led off the stage by the maestro. 歌唱家由那位著名的指挥领着离开了舞台。
