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1. 发明授权

US4004637A Oil recovery by improved surfactant flooding 失效
标题翻译：通过改善表面活性剂淹水获得油
公开(公告)号：US4004637A
公开(公告)日：1977-01-25
申请号：US553689
申请日：1975-02-27
申请人： Riley B. Needham , Gilbert R. Glinsmann , Donald R. Wier
发明人： Riley B. Needham , Gilbert R. Glinsmann , Donald R. Wier
IPC分类号： C09K8/584 , C09K8/588 , C09K8/84 , E21B43/20 , E21B43/16
CPC分类号： C09K8/845 , C09K8/584 , C09K8/588 , E21B43/20
摘要： The quantity of oil which can be economically recovered from an already waterflooded predominantly oil-wet formation is increased by passing a first solution through the formation to change the formation from its oil-wet to a water-wet state, passing a second solution having high interfacial tension with the oil through the formation to force the oil from the small pores of the formation into larger ones, and passing a third solution having a low interfacial tension between the third solution and the oil through the formation, optionally passing a mobility buffer-solution through the formation to prevent fingering or channeling, and finally passing the driving fluid through the formation.
摘要翻译：通过将第一溶液通过地层，可以从已经水驱的主要是油湿地层中经济地回收的油的量增加，以将地层从其油润湿状态改变到水湿状态，通过具有高的与通过地层的油的界面张力将油从地层的小孔促成较大的油，并且通过地层通过第三溶液和油之间具有低界面张力的第三溶液，任选地通过流动缓冲液 - 解决方案通过形成以防止指法或引导，并最终通过驱动流体通过地层。

2. 发明授权

US4258789A Cosurfactant blends for oil recovery surfactant system 失效
标题翻译：辅助表面活性剂混合油回收表面活性剂体系
公开(公告)号：US4258789A
公开(公告)日：1981-03-31
申请号：US071609
申请日：1979-08-31
申请人： James H. Hedges , Gilbert R. Glinsmann
发明人： James H. Hedges , Gilbert R. Glinsmann
IPC分类号： B01F17/00 , C09K8/584 , E21B43/22
CPC分类号： B01F17/00 , C09K8/584 , Y10S507/938
摘要： A first and second series of aqueous surfactant-cosurfactant-electrolyte systems are prepared at varying electrolyte concentrations using, respectively, a relatively water insoluble cosurfactant and a relatively water soluble cosurfactant. The resulting systems are mixed with oil to be displaced or its equivalent and allowed to equilibrate so as to determine the salinity at which the microemulsion phases formed on said equilibration have approximately equal volumes of oil and water, thus giving the optimal salinity concentration for each surfactant-cosurfactant combination. Similar equilibrations are made using at least one surfactant system which employs a cosurfactant of intermediate water solubility. These systems are then used under the same or similar conditions to displace oil at the optimal salinity for each system and the resulting oil recovery percentage is plotted versus the salinity. Thereafter using the relationship that increasing the more water soluble component of the cosurfactant increases the optimum salinity value and vice versa, a cosurfactant blend is prepared so as to give a system which has an optimum salinity essentially corresponding to the unique salinity.
摘要翻译：使用相对不溶于水的辅助表面活性剂和相对水溶性助表面活性剂，以不同的电解质浓度制备第一和第二系列水性表面活性剂 - 辅助表面活性剂 - 电解质体系。所得到的体系与要移动的油或其等同物混合并允许平衡，以便确定在所述平衡上形成的微乳相的盐度具有大致相等体积的油和水，从而给出每种表面活性剂的最佳盐度浓度 - 表面活性剂组合。使用至少一种使用中等水溶性的辅助表面活性剂的表面活性剂体系进行类似的平衡。然后在相同或相似的条件下使用这些系统以置换每个系统的最佳盐度的油，并且将所得的油回收百分比绘制为相对于盐度。此后，使用增加辅助表面活性剂的更多水溶性组分的关系增加最佳盐度值，反之亦然，制备辅助表面活性剂共混物，以便产生具有基本上对应于独特盐度的最佳盐度的体系。

3. 发明授权

US4300635A Aqueous petroleum sulfonate mixture and method of use in post-primary oil recovery 失效
标题翻译：含水石油磺酸盐混合物及其在原油回收中的应用
公开(公告)号：US4300635A
公开(公告)日：1981-11-17
申请号：US122349
申请日：1980-02-19
申请人： Gilbert R. Glinsmann
发明人： Gilbert R. Glinsmann
IPC分类号： C09K8/584 , E21B43/22
CPC分类号： C09K8/584 , Y10S507/936
摘要： An aqueous mixture is made of water, oil containing petroleum sulfonate, inorganic salt and, optionally, polymeric material wherein the polymeric material is added when it is desired to increase the viscosity of the mixture so that it is more suitable for use in certain types of oil recovery processes. The oil-to-active petroleum sulfonate ratio is adjusted to a preferred amount and oil in the petroleum sulfonate can be extracted and another oil can be added to replace the extracted oil so that the mixture has an increased tolerance to inorganic salt.
摘要翻译：含水混合物由含水的石油磺酸盐油，无机盐和任选的聚合材料制成，其中当希望增加混合物的粘度时加入聚合物材料，使得其更适合用于某些类型的采油过程。将油 - 活性石油磺酸盐比调节至优选量，并且可以提取石油磺酸盐中的油，并且可以加入另一种油以代替提取的油，使得该混合物对无机盐的耐受性增加。

4. 发明授权

US4274488A Cosurfactant in preflush for surfactant flood system 失效
标题翻译：表面活性剂在表面活性剂泛化系统的预冲洗中的表面活性剂
公开(公告)号：US4274488A
公开(公告)日：1981-06-23
申请号：US71608
申请日：1979-08-31
申请人： James H. Hedges , Gilbert R. Glinsmann
发明人： James H. Hedges , Gilbert R. Glinsmann
IPC分类号： C09K8/584 , E21B43/22
CPC分类号： C09K8/584
摘要： In a post-primary oil recovery process involving the sequential addition of a saline preflush, a surfactant system comprising a surfactant, a cosurfactant and brine, the improvement comprising the addition of cosurfactant to the preflush. If desired, cosurfactant can also be added to a subsequent injected mobility buffer. The resulting system gives extraordinarily high recovery of oil.
摘要翻译：在涉及顺序添加生理盐水预冲洗的后原油回收方法中，包含表面活性剂，辅助表面活性剂和盐水的表面活性剂体系，其改进包括将辅助表面活性剂加入到预冲洗中。如果需要，辅助表面活性剂也可以添加到随后注入的移动性缓冲液中。所得到的系统油的回收率非常高。

5. 发明授权

US4265308A Oil recovery method using unique salinity for oil recovery surfactant system 失效
标题翻译：石油采收方法采用独特的盐度作为油回收表面活性剂体系
公开(公告)号：US4265308A
公开(公告)日：1981-05-05
申请号：US71642
申请日：1979-08-31
申请人： James H. Hedges , Gilbert R. Glinsmann
发明人： James H. Hedges , Gilbert R. Glinsmann
IPC分类号： C09K8/584 , E21B49/00 , E21B43/22
CPC分类号： E21B49/00 , C09K8/584 , Y10S507/938
摘要： A series of surfactant systems is prepared at varying electrolyte concentrations, each system being mixed with oil to be displaced or its equivalent and allowed to equilibrate to determine the salinity at which the microemulsion phase has approximately equal volumes of oil and water; thereafter additional series of such surfactant systems are prepared utilizing different cosurfactants; thereafter the resulting surfactant systems are used at their optimal salinity (i.e., the salinity at which approximately equal volumes of oil and water are taken up into the microemulsion phase) to recover oil from test cores and the resulting oil recovery plotted versus the salinity to give the unique salinity at which maximum oil recovery is obtained for the particular oil-surfactant combination.
摘要翻译：以不同的电解质浓度制备一系列表面活性剂体系，每个系统与要移位的油或其等同物混合并使其平衡以确定微乳液相具有大约相等体积的油和水的盐度; 此后使用不同的辅助表面活性剂制备另外的一系列这样的表面活性剂体系; 此后，所得表面活性剂体系以其最佳盐度（即将大约相等体积的油和水吸收到微乳液相中的盐度）使用以从测试核心回收油，并且所得油回收相对于盐度绘制，得到特定的油 - 表面活性剂组合获得最大的油回收率的独特的盐度。

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