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1.发明授权
公开(公告)号：US4293428A
公开(公告)日：1981-10-06
申请号：US870313
申请日：1978-01-18
CPC分类号： C09K8/584 , Y10S516/02 , Y10S516/03 , Y10S516/04
摘要： A method for recovering oil from a subterranean formation is disclosed wherein a novel solution is injected into and driven through the formation. The solution contains an effective amount of surface-active agent having the general formulaR.sub.1 O(C.sub.3 H.sub.6 O,.sub.m (C.sub.2 H.sub.4 O).sub.n YXwhereinR.sub.1 is a linear or branched alkyl radical, an alkenyl radical, or an alkyl or alkenyl substituted benzene radical, the non-aromatic portion of the radical containing from about 6 to about 24 carbon atoms;m has an average value of between about 1 and about 10;n has an average value of between about 1 and about 10;Y is a hydrophilic group; andX is a cation, preferably monovalent.
摘要翻译： 公开了一种从地层中回收油的方法，其中将新的溶液注入和驱动通过地层。 该溶液含有有效量的具有通式R 1 O（C 3 H 6 O，m（C 2 H 4 O）n Y X）的表面活性剂，其中R 1是直链或支链烷基，烯基或烷基或烯基取代的苯基， 含有约6至约24个碳原子的基团的芳族部分; m具有约1至约10的平均值; n具有约1至约10的平均值; Y是亲水基团; X是 阳离子，优选一价。
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公开(公告)号：US3946812A
公开(公告)日：1976-03-30
申请号：US557719
申请日：1975-03-12
摘要： One embodiment includes an oil recovery process, more particularly a secondary or tertiary type crude oil recovery process utilizing a drive fluid to move a displacing fluid through a subterranean formation wherein the displacing fluid displaces crude oil therefrom and is driven through the formation by means of the drive fluid. The crude oil recovery process is improved by utilizing as the drive fluid a thickened, transparent, aqueous solution of a water-soluble sulfated, polyethoxylated C.sub.10 -C.sub.18 primary alcohol or alkylated phenol. The displacing fluid is generally an aqueous surfactant solution, a miscible displacing medium or most preferably a microemulsion. In a further embodiment, the water-soluble, polyethoxylated C.sub.10 -C.sub.18 primary alcohol or alkylated phenol is employed as a mobility control agent in a waterflood thereby increasing the sweep efficiency thereof.
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公开(公告)号：US3977471A
公开(公告)日：1976-08-31
申请号：US616981
申请日：1975-09-26
CPC分类号： C09K8/584 , Y10S507/938
摘要： A method is disclosed for recovering oil from a subterranean oil-bearing formation wherein a liquid solution in injected into and driven through the formation and oil is recovered from the formation. The liquid solution contains an effective amount of a surface-active agent having the general formula: ##EQU1## or ##EQU2## wherein R.sub.1 is a benzene, toluene, or xylene radical having a linear or branched alkyl substituent containing from 6 to 24 carbon atoms;R.sub.2 is an alkyl, cycloalkyl, alkene or aryl radical containing up to 8 carbon atoms;R.sub.3 is a hydrogen atom, a hydroxyl radical, or an aliphatic radical containing from 1 to 8 carbon atoms;n has a value of 2 or 3;m has an average value of from 1 to 20; andX is a cation.
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4.发明授权Microemulsions which compatibly incorporate viscosifiers and their use in enhanced oil recovery 失效兼容粘合剂的微乳液及其在增强采油中的应用
公开(公告)号：US4271907A
公开(公告)日：1981-06-09
申请号：US54380
申请日：1979-07-02
申请人： Walter W. Gale
发明人： Walter W. Gale
CPC分类号： C09K8/588 , C09K8/584 , Y10S507/938
摘要： To improve the sweep efficiency of a microemulsion flooding process to recover crude oil from a subterranean formation, a mobility control polymer is added to the microemulsion to increase its viscosity. To enable the compatible incorporation of the polymer and surfactant into the microemulsion, while still utilizing an aqueous component having a salinity near that of the formation, a microemulsion oil component is used for which the surfactant's optimal salinity is substantially higher than for reservoir crude oil.
摘要翻译： 为了提高微乳液淹没方法从地层中回收原油的扫描效率，向微乳液中加入迁移率控制聚合物以增加其粘度。 为了能够将聚合物和表面活性剂相容并入微乳液中，同时仍然利用具有接近地层盐度的含水组分，使用微乳液油组分，其表面活性剂的最佳盐度明显高于储层原油。
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公开(公告)号：US3994342A
公开(公告)日：1976-11-30
申请号：US592980
申请日：1975-07-03
申请人： Robert N. Healy , Walter W. Gale
发明人： Robert N. Healy , Walter W. Gale
CPC分类号： C09K8/584
摘要： Crude oil remaining in a subterranean formation is recovered through the injection of a microemulsion comprising an oil, i.e. a refined or crude oil, an aqueous medium and as a surfactant, a C.sub.8-16 orthoxylene sulfonate. The aqueous medium is preferably a brine having a salt concentration of up to about 2 1/2% by weight, although increased brine tolerance can be achieved by inclusion of a cosurfactant within the microemulsion. When utilized in the secondary or tertiary recovery of crude oil, the microemulsion is preferably followed by thickened water and thereafter unthickened water injected into and through the subterranean formation.
摘要翻译： 残留在地层中的原油通过注入包含油，即精制或原油，水性介质和表面活性剂C8-16邻二甲苯磺酸盐的微乳液而回收。 水性介质优选为盐浓度高达约2 1/2重量％的盐水，尽管通过在微乳液中包含辅助表面活性剂可以实现增加的盐水耐受性。 当用于原油的二次或三次回收时，微乳液优选地随后加入增稠的水，然后将未渗透的水注入并通过地下地层。
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公开(公告)号：US4589998A
公开(公告)日：1986-05-20
申请号：US529190
申请日：1983-09-06
申请人： James R. Bragg , Walter W. Gale
发明人： James R. Bragg , Walter W. Gale
IPC分类号： B01D17/04 , C10G33/00 , C10M119/10 , C09K3/00
CPC分类号： C10G33/00 , B01D17/042
摘要： To improve the separation of a produced oil-water emulsion containing a surfactant, the emulsion parameters of temperature and salinity are brought within certain critical limits. The emulsion will separate into an injectable brine/surfactant phase and a pipeline quality crude oil phase. The operable salinity range is from about 70% to about 130% of the reservoir salinity, and the operable temperature range is from about 75.degree. F. lower to about 75.degree. F. higher than the temperature of the reservoir from which the emulsion was produced.
摘要翻译： 为了改进含有表面活性剂的生产油水乳液的分离，将温度和盐度的乳液参数置于某些临界限度内。 乳液将分离成可注射的盐水/表面活性剂相和管道质量原油相。 可操作的盐度范围是储层盐度的约70％至约130％，并且可操作的温度范围比产生乳液的储存器的温度高约75°F至约75°F 。
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7.发明授权Enhanced oil recovery process utilizing a lignosulfonate as a _solubilizing agent in an afterflush 失效在后冲中利用木质素磺酸盐作为增溶剂的增强的油回收方法
公开(公告)号：US4479542A
公开(公告)日：1984-10-30
申请号：US443261
申请日：1982-11-22
申请人： Mark P. Warchol , Walter W. Gale
发明人： Mark P. Warchol , Walter W. Gale
摘要： To reduce the surfactant adsorption in a subterranean formation during a surfactant or microemulsion flooding process, lignosulfonate salts are injected into the formation after the surfactant solution has already been injected. The lignosulfonate afterflush may contain a thickener to promote better sweep efficiency, and water or brine will usually be used to drive the lignosulfonate salts through the reservoir to a production well.
摘要翻译： 为了在表面活性剂或微乳液淹没过程中减少地下地层中的表面活性剂吸附，在表面活性剂溶液已经注射后，将木质素磺酸盐注入地层中。 木质素磺酸盐后冲可以含有增稠剂以促进更好的扫射效率，并且通常使用水或盐水将木质素磺酸盐通过储层驱动到生产井。
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公开(公告)号：US3983940A
公开(公告)日：1976-10-05
申请号：US588759
申请日：1975-06-20
CPC分类号： C09K8/584 , Y10S507/938
摘要： A water-external microemulsion and a method of recovering crude oil therewith, the water-external microemulsion being one which comprises at least 90% by weight of an aqueous medium, an oil component and a surfactant comprising a C.sub.8-16 orthoxylene sulfonate in an amount greater than the critical micelle concentration to form the microemulsion. The water-external microemulsion allows for effective and efficient crude oil recovery by providing minimum adsorption and low oil-water interfacial tension.
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