残余油饱和度

结果表明：分子膜驱相对于水驱可降低残余油饱和度，提高驱油效率；

The results show that molecular deposition flooding can reduce Sor than water flooding , and enhance the efficiency of oil displacement ;

温度对稠油相对渗透率及残余油饱和度的影响

The effect of temperature on the relative permeability and residual oil saturation

水基泥浆取心分析残余油饱和度的应用

Application of core analysis on remaining oil saturation of water-base mud

单井化学示踪剂测残余油饱和度段塞解释模型

Plug interpretation model for single well chemical tracer measuring residual oil saturation

单井化学示踪剂法测残余油饱和度&回顾与展望

The Single-Well Chemical Tracer Method for Measuring Residual Oil Saturation & Review and Prospect

提出了用热解参数计算残余油饱和度的新方法。

Suggest a new method of calculating residual oil saturation by means of pyrolytic parameters .

注水剖面资料确定吸水层动态残余油饱和度

Using Water Injection Profile Data to Determine Dynamic Residual Oil Saturation of Water Accepting Layers

实验条件相似的流体，其弹性越大，驱替后残余油饱和度越低。

The higher the elasticity is , the lower the saturation of residual oil will be .

振动可使岩石的润湿性得到改善，增加油、水相对渗透率，降低残余油饱和度。

The wettability of rock was improved and the relative penetrating coefficient of oil / gas was increased by the mechanical vibration .

此外，注入气体还可以有效地消除界面张力和毛管压力，最大限度地降低残余油饱和度。

In addition , the injected gas can effectively eliminate the interfacial tension and capillary pressure , minimize the residual oil saturation .

在此基础上，建立广油相对渗透率、水相对渗透率和残余油饱和度的拟合方程。

Based on this research , the statistic equations for oil and water to permeabilities and irreducible oil saturation are derived respectively .

但含油水层或水层投注后不能用上述方法确定动态残余油饱和度。

But , the above method can not be used in water / oil bearing beds or water layer which have been injected .

在岩心渗透率级别相同的情况下，越早转注聚其相对渗透率曲线两相区跨度越大，残余油饱和度越低。

For the cores of same permeability , the earlier polymer flooding is , the wider two-phase region , the lower residual oil saturation . 4 .

一般相对渗透率曲线具有束缚水饱和度较高、残余油饱和度较低以及残余油状态相对渗透率较高、两相流动区间较宽的特点；

In general , these curves are characterized by high irreducible water saturation , low remaining oil saturation with high relative permeability and wider two-phase region .

不同阶段相渗参数分析表明，油田进入高含水期后，孔隙度对渗透率、渗透率对残余油饱和度、两相共渗区、驱油效率等参数的影响作用相对增大。

Analysis of relative permeability parameters indicates that influences of porosity to permeability and permeability to residual oil saturation and the oil displacement efficiency have been enhanced relatively .

结果表明：孔喉比增大，残余油饱和度增大，水相达到同样的渗流能力所对应的含水饱和度相对增加；

The results show that as pore-throat ratio becomes larger , residual oil saturation gets larger and the water saturation increases when water achieved the same flow ability .

在蒸汽泡沫微观渗流研究的基础上，研究了温度、气液比、气液速率、残余油饱和度以及渗透率对蒸汽泡沫封堵能力的影响。

The influence of temperature , gas-liquid ratio , gas-liquid rate , residual oil saturation and permeability on steam foam sealing ability is studied on the basis of microscopic percolation study .

在毛管数相同的条件下，驱替液体系的弹性越高，其驱油效率越高，残余油饱和度越低。

Under the same capillarity number , the higher the elasticity of displacing phase is , the higher the oil displacement efficiency is , and the lower the residual oil saturations are .

研究表明，束缚水饱和度下油驱和残余油饱和度下水驱低速非达西的临界雷诺数不同，也就是说，驱替与被驱替介质不同，产生低速非达西的临界雷诺数不一样。

The study shows the different Reynolds numbers mean that the different critical Reynolds numbers of low-velocity non-Darcy flow under these two situations are resulted from different media for displacing and being displaced .

在转注聚时机一定的情况下，岩心渗透率越高，两相区跨度越大，残余油饱和度越低，采收率越高。

For the same time of beginning polymer flooding , the higher the core permeability is , the wider two-phase region , the lower residual oil saturation , the higher the recovery . 5 .

通过现场实测资料的解释，建立了动态残余油饱和度与吸水层每米累计吸水量的定量关系，为剩余油分布研究提供新思路。

Quantitative relationship between the dynamic residual oil saturation and cumulative water intake capacity per meter is built through the interpretation of field data providing new thought for the study of remaining oil distribution .

对于聚丙烯酰胺类聚合物、梳形聚合物和缔合聚合物等不同类型的聚合物驱，增加体系的毛管数和增加溶液的弹性都可以有效的提高驱油效率、降低残余油饱和度。

For polyacrylamide , comb polymer and associative polymer flooding , the increases in capillary number and elasticity of solutions are all effective in increasing the displacement efficiency and decreasing the residual oil saturation .

油水相渗实验表明，润湿性反转剂使残余油饱和度降10%，两相等渗点右移，岩石表面的亲水性增强。

The relative permeability experiments showed irreducible oil was reduced by 10 % by the wettability alteration agents , and the cross-point relative permeability moves to right , and the core converts to water-wet .

驱替实验表明，最终驱油效率可达81.44%，比水驱提高了34.3%，残余油饱和度达到11.14%。

The results of displacement experiment indicated that ultimate oil displacement efficiency is high up 81.44 % , and is increased by 34.3 % than water flooding , the residual oil saturation is 11.14 % .

注氮气是改善稠油蒸汽吞吐后期开采效果的有效途径，其主要增产机理是增加蒸汽波及体积，补充驱动能量，进一步降低残余油饱和度和提高回采水率。

Nitrogen injection is an effective way to improve oil recovery at late stage of steam soaking , which increases the steam soaking volume and provides displacement energy to reduce residual oil saturation and enhance recovery .

针对这一问题提出确定泥浆滤液电阻率、残余油饱和度和油、水相对渗透率来计算水淹层产水率的方法。把渗流理论引入到测井评价中来；

Methods as following can be used to calculate water productivity by determining mud filtrate resistivity , residual oil saturation and relative water permeability : 1 . The seepage theory is introduced to solve the log evaluation problems ;

预计雁翎油田注氮气能获得增产效果，但是，注氮后，较大的缝洞系统中留有13%以上的残余油饱和度。

Finally , it is expected that nitrogen injection in Yanling Field will have an effect of increasing oil recovery , but the residual oil will still be more than 13 % in larger fracture-vug system after nitrogen injection .

根据传统观念上的残余油饱和度以及根据历次的注水剖面资料确定注水层各层的注水量和有效厚度，在此基础上确定注水层当前的动态残余油饱和度值。例举了应用实例。

Traditional residual oil saturations and water injection profile data are used to determine water injection rates and effective thickness of each injecting layer , based on which the current dynamic residual oil saturation of the injecting layers are obtained .

以混相流体的渗流理论为基础，在将油粘度、水粘度、束缚水饱和度、残余油饱和度等参数合理求出之后，探讨了用产出剖面资料计算剩余油饱和度的模型。

Based on the percolation theory of miscible fluid , oil viscosity , water viscosity , irreducible water saturation and residual oil saturation are obtained reasonably . The model for calculating remaining oil saturation with production profile data are explored .

通过聚合物驱岩心试验，对比分析了注聚合物前后岩心的束缚水饱和度、残余油饱和度、绝对渗透率和相对渗透率的变化特征。

Through core test of polymer displacement , the irreducible water saturation , remaining oil saturation and the characteristics of changes of absolute permeability , and relative permeability of cores are contrasted and analyzed both before and after the polymer flooding .