聚合物驱油技术是通过提高水的波及系数提高原油采收率。
Polymer flooding technology enhances oil recovery by increasing the sweep efficiency of water.
常温驱油效率低，水驱波及系数小，且水驱后原油黏度增加。
At normal temperatures, the oil driving efficiency and the sweep efficiency of water driving are low, and the crude viscosity increases after water drive.
在纵向上，后续水从高渗层转向低渗透层，提高纵向波及系数。
In the vertical direction, follow-up water diverted from the high-permeability layer to the low-permeability layer to enhance the vertical sweep efficiency.
平面波及系数是注水方式、裂缝走向夹角及裂缝相对长度的函数。
Lateral sweep efficiency is the function of injection-and-production system, angles between direction of injection and fractures, and the relative length of fractures.
开展线性注水先导试验，提高注入水的波及系数，改善区块开发效果。
Pilot test of linear water injection may be carried out to improve the sweep efficiency of the injected water and improve the effect of block development.
是既有提高波及系数，也有提高洗油效率的一种新的提高原油采收率技术。
This is a new EOR technology which can improve swept factor and oil displacement efficiency.
了解注水波及系数及油层的水淹状况是注水开发油田动态分析的一项重要内容。
What knowing about water injection sweep efficiency and oil layer's water flooded condition is an important content for dynamically analyzing development oilfield by water injection.
根据对我国陆上油田各项指标的统计与分析，评价了这些油田采收率与波及系数。
According to the statistics and analysis of each index of onshore oilfields in China, they have been evaluated.
根据裂缝分布规律，优化了A区注采井网，有效地提高了该油藏产能和注水波及系数。
The flooding pattern of a area is optimized according to the distribution rule of the fractures. Productivity and waterflooded sweep efficiency of this oil reservoir raised effectively.
差油层动用状况较差，导致油田水驱效率和波及系数较低，最终采收率低，开发效果差。
Producing condition of poor reservoir is bad, which makes waterflood efficiency, conformance factor and final recovery efficiency low, and the development effect is bad.
其次，计算了价格波及系数，得出北京市房地产业提价的影响几乎波及国民经济的各个部门。
Then, calculates the price spread coefficient, conclusions show that the raise of Beijing's real estate price almost affects all sectors of the national economy.
因此，注蒸汽热采可以改善稠油渗流特性，降低残余油饱和度，提高驱油效率、波及系数及采收率。
The steam flood can improve heavy oil seepage flow characteristics, remain oil saturation, and enhance oil displacement efficiency, conformance factor as well as EOR.
对于地质构造复杂的大型非均质油田，油层作用波及系数对采出过程和最终采收率起着决定性作用。
The sweep efficiency of an oil reservoir plays a decisive role in the course of oil production and the ultimate recovery in a large heterogeneous oil reservoir with complex geological structure.
从最佳封堵用量研究得出：堵剂用量越大，高渗带封堵得越彻底，因此波及系数越大，原油采收率越高。
Study on optimum plugging quantity proves that the more plugging agent used, the more complete plugging of high permeable formations, and thus higher sweep efficiency and recovery.
利用采出程度、驱油效率和体积波及系数三者关系，给出了体积波及系数与可采储量采出程度的计算公式。
In addition, using the relationship among recovery percent, displacement and volumetric sweep efficiency, the equations for estimation of the volumetric sweep efficiency and.
用数值模拟研究手段对七点法井网、五点法井网以及单油层、多油层聚合物驱的波及系数及驱油效果进行了模拟；
The sweep efficiency and oil displacement effect of polymer flooding in seven spot and five spot patterns for single and multizone reservoirs were simulated by numerical simulation.
结果表明，聚合物驱可有效地提高油层的动用状况，扩大平面波及系数，减小层间差异，使层内纵向动用更加均匀。
Results show that polymer flooding can improve the producing reserves effectively, extend the plane sweep efficiency, reduce the difference between layers and balance the in-layer vertical producing.
油藏非均质性严重，就会导致平面上水线推进不均匀，使生产井过早见水或水淹，从而影响水驱面积波及系数的大小。
Reservoir heterogeneity can lead to uneven waterline forward on flat moreover that will result in water breakthrough too early. Thus the area sweep coefficient was affected.
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。
The mechanism and the extent of action of polymer solution's depleted layer effect and viscoelastic effect on displacement efficiency and sweep coefficient.
聚合物驱提高原油采收率的主要机理是扩大波及系数，聚合物驱后油层波及状况的研究是聚合物驱效果评价和进一步提高采收率的基础。
Research on sweep conditions of the oil reservoir after polymer flooding is the foundation of effect evaluation and further enhancing oil recovery.
聚合物驱提高原油采收率的主要机理是扩大波及系数，聚合物驱后油层波及状况的研究是聚合物驱效果评价和进一步提高采收率的基础。
Research on sweep conditions of the oil reservoir after polymer flooding is the foundation of effect evaluation and further enhancing oil recovery.
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