波及系数

采收率和波及系数是油田开发的重要指标。

The recovery factor and sweep efficiency are the important indexes .

在水驱初期，波及系数增加较快，之后缓慢增加至稳定。

Sweep efficiency increased rapidly at the initial stage of water flooding and then became steady .

将该计算过程编制成VBA程序，绘制出了不同含水率的条件下，聚驱波及系数与流度比倒数的关系图版。

Compiling this calculation process into the VBA software , we can draw the plate about the relation between the sweep efficiency and reciprocal mobility ratio under different water cut conditions .

计算得到当流度比为1时，水驱前缘突破时刻的波及系数为71%，与Muskat的实验结果误差仅为1%。

When the mobility ratio is equal one , the sweep efficiency is 71 % at the time of breaking of water flooding front . The error compared with the result of Muskat is only 1 % .

水平井与垂直井联合井网波及系数研究

Research on sweep efficiency in horizontal - vertical combined well pattern

提出拟波及系数、临界流体饱和度等新概念；

We introduce two new concepts : critical saturation and pseudo conformance .

数控系统二次曲线比较积分插补算法研究二次采油体积波及系数

Research on Conic Section Comparison Integral Interpolation Algorithm of Numerical Control System

衰竭层效应和粘弹性效应对聚合物波及系数的作用研究

The Action of Depleted Layer Effect and Viscoelastic Effect on Polymer Sweep Coefficient

纵向非均质大型平面模型聚合物驱油波及系数室内实验研究

Experimental study on sweep efficiency of polymer flooding with longitudinal heterogeneous plane model

驱油效率与波及系数分析；

Analysis of oil displacement efficiency and sweep efficiency ;

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 .

驱油效率和体积波及系数的确定非均质油层波及系数计算模型

A model for the calculation of the sweep efficiency in a heterogeneous oil reservoir

聚合物驱既可以提高驱油效率，又能够提高波及系数。

Polymer flooding can increase both displacing and sweeping efficiency and thus enhance oil recovery .

用波及系数修正法确定油藏的理论含水率曲线

Application of Conformance Efficiency Modification Method to Determination of Theoretic Water Cut Curve of Reservoir

不同流度比情况下的波及系数的变化趋势也与实验结果一致。

The changing trend under different mobility ratios is also the same as the experimental result .

波及系数的研究以物理实验、数值模拟以及经验公式三种方法为主。

The main research methods about sweep efficiency are experiment , numerical simulation and empirical formula .

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 .

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 .

该多元回归式不仅可确定最终驱油效率，而且还可计算注水倍数，确定不同开发阶段的驱油效率、波及系数。

Using the relational expression can calculate not only oil displacement efficiency but also water injection times and waterflood sweep effciency .

室内研究表明，油井深部堵水可以更高提高水驱波及系数，进而提高原油采收率，并且堵剂放置的位置存在一个最佳深度，此时单位体积堵剂的采收率增值最大。

The laboratory experiment indicates that the deep water plugging in oil well could improve flooding conformance factor and oil recovery factor .

作为附加值较高的汽车制造业，其产业链长，产业关联度与产业波及系数均较高。

As a high value-added industry , auto manufacturing has a long industry chain with high relativity of industries and industrial spread factors .

泡沫驱既能显著提高波及系数，又能提高洗油效率，是一种很有发展前景的三次采油方法。

Foam flooding can not only significantly improve sweep efficiency , but also improve the displacement efficiency and is a promising EOR method .

在非均质油层中，分层渗透率越大，分层平面波及系数越大，分层采收率越高；

In the heterogeneous reservoir , the bigger the separate stratum permeability is , the higher the sweep efficiency and recovery percent are ;

初步得出驱油效率对提高采收率值的贡献率为33.27%，波及系数的贡献率为66.73%。

Contribution generated from displacement oil to enhance oil recovery is obtained , which is 33.27 % , and sweep efficiency contribution is 66.73 % .

要想较好地挖掘层内剩余油，就必须有既提高波及系数，也有提高洗油效率的提高原油采收率的技术。

In order to better recover the by-passed oil in reservoirs , EOR technologies that can improve both sweep efficiency and flushing efficiency are needed .

因而，迄今尚没有一种完整而简便的非均质油层波及系数计算模型。

Therefore , no simple and complex calculation model for the determination of the sweep efficiency of a heterogeneous reservoir has been derived till now .

此外，注入压力提高引起压力梯度增加，驱替动力增大，微观波及系数增加。

The presure gradient and driving force increased due to the increase in injection pressure , which resulted in the increase of sweep efficiency microscopically .

该堵剂用能提高注入水的波及系数，改善地层的吸水剖面，从而达到提高石油采收率的目的。

It can improve the sweeping coefficient of injecting water and ameliorate water-injecting profile of stratum . So it can improve the recovery of crude oil .

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 .

组合调驱可以既提高水驱波及系数又提高洗油效率，是更趋完善的提高采收率方法。

It was a more perfect improved recovery method that profile control and flooding combination technology could increase water-flood sweep efficiency as well as increase displacement efficiency .