In the non-permeability porous matrix,the capillary imbibition is important action to improve oil production.
实验表明在不具渗透性的多孔基质岩块内,毛管自吸驱油是改善基质岩块内石油动用程度的重要作用;储层在不同含水饱和度下均存在自吸作用,毛管自吸驱油系数随自吸时间延长而提高,最高可达35%;周期注水是利用毛管自吸驱油改善开发效果的有效开发方式,实验中最佳压力变化幅度为1。
W's imbibition theoretical formula shows the relation in fractured oil reservoir between oil displacement rate of spontaneous water imbibition and matrix physical characterization, wettability, interfacial tension, oil viscosity as well as area of oil - vater contact.
的自吸理论公式揭示了裂缝性油藏自吸水驱油量与基质的物性、润湿性、油水界面张力、原油粘度以及油水接触面积的关系。
In a spectral half-quantitative analysis,the self-absorption augments along with the increase of the element consistence,thus seriously deviating the analytical results from the truth.
看谱半定量分析随着样品中元素浓度的增大 ,自吸增加 ,从而使分析结果严重的偏离真实值。
The structure and the principle of self-priming pump was introduced,which is used on the ship.
介绍了船用自吸式耐腐蚀泵的结构和工作原理,并结合工程应用分析了此类泵的设计方法和设计过程,在实际应用中取得了较好的效果。
The metering problem in self-absorption experiment is analyzed and a new metering method is proposed.
对储层润湿性评价实验各种方法进行了对比,特别是特低渗储层,分析了自吸法实验中计量存在的问题,提出新的计量方法,并对这种实验方法进行了测试结果的比对,发现该方法可行,简单实用,同时可以节约大量的实验成本,降低劳动强度,提高工作效率。
Studies on self-absorption of radioactivity cement-based functional composites;
放射性“自吸收”水泥基功能复合材料的研究
The self-absorption phenomenon is clear with the increase of Yb doping concentration in YAG crysta.
随着Yb3+离子掺质浓度的增高,晶体中出现的自吸收现象越为明显。
-% Yb∶YAG single crystal is suitable for pumping with 940 nm laser diode(LD) and the self-absorption effect is smaller than that of 5 at.
5%的Yb∶YAG晶体相对于原子数分数为5%的Yb∶YAG晶体自吸收效应的影响要小。