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- 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。
- 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 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 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。
- 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。
- Superfine cement plugging technology is an effective way to plug thief zone, to reduce water production and/or invalid water injection, and to improve oil displacement efficiency of injected water. 超细水泥封堵技术是封堵油水井高渗透层段,减少产水量或无效注水,提高注入水驱油效率的有效措施之一。
- Rotation cementing is one of the most advanced technologies in the world which is to make casing string rotate through turntable in order to improve displacement efficiency and cementing quality. 旋转固井是目前国际上最先进的固井新工艺之一,在固井施工中,通过转盘带动套管串旋转,提高水泥浆的顶替效率,提高固井质量。
- Based on the example, we knew that the method of tapping potentialities increased the oil productive capacity, improved the use of the thick oil reservoir and raised oil displacement efficiency. 该挖潜方法有效增加产油量,能够改善厚油层动用状况,提高厚油层驱油效率。
- The wall shear stress caused by cement slurry flowing in the annular space is a key element that affects the displacing efficiency. 水泥浆环空流动的壁面剪应力是影响顶替效率的关键因素。
- This paper analyzed laboratory experiment results of oil displacement efficiencies of both water and steam drive in heavy oil reservoir by using basic knowledge and method of reservoir engineering. 利用油藏工程基本知识和基本方法,对稠油油藏水驱和蒸汽驱的两组驱油效率室内实验结果进行了分析。