摘要：【中文】本发明公开了一种驱油用双长链阴‑非复合型表面活性剂及其制备方法。本发明利用长链脂肪醇和环氧氯丙烷反应生成1,3‑二烷氧基‑2‑丙醇（I）,I与环氧乙烷和环氧丙烷加成生成双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚（II），II再用ClSO₃H磺化得到双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚磺酸盐阴‑非复合型表面活性剂。该方法制的双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚磺酸盐在低弱碱或无碱条件下具有较好的界面性能、乳化性能和驱油效果。其中双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚磺酸盐（diC_xGE‑E_mP_n‑HS，x=8或10，m=15,n=10）适合用作低弱碱表面活性剂，用于油田三元复合驱；双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚磺酸盐（diC_xGE‑E_mP_n‑HS，x=12，m=15,n=10）适用无碱表面活性剂，用于油田二元复合驱。 【EN】The invention discloses a double-long-chain anionic-non-composite surfactant for oil displacement and a preparation method thereof. The invention utilizes the reaction of long-chain fatty alcohol and epichlorohydrin to generate 1, 3-dialkoxy-2-propanol (I), the addition of the I, ethylene oxide and propylene oxide to generate dialkoxy glycerin ether polyoxyethylene-polyoxypropylene ether (II), and the ClSO is used to generate the diethoxy glycerin ether polyoxyethylene-polyoxypropylene ether (II)₃H is sulfonated to obtain the dialkoxy glycerol ether polyoxyethylene-polyoxypropylene ether sulfonate anion-non-composite surfactant. The dialkoxy glycerol ether polyoxyethylene-polyoxypropylene ether sulfonate prepared by the method has better interface performance, emulsifying performance and oil displacement effect under the condition of low weak base or no base. Wherein the dialkoxy glycerol ether polyoxyethylene-polyoxypropylene ether sulfonate (diC)_xGE‑E_mP_n-HS, x =8 or 10, m =15, n = 10) is suitable for use as a low weak base surfactant for oilfield tri-compound flooding; bis-alkoxy glyceryl ether polyoxyethylene-polyoxypropylene ether sulfonate (diC)_xGE‑E_mP_n-HS, x =12, m =15, n = 10) suitable alkali-free surfactants for use in oilfield binary compound flooding.

摘要：【中文】本发明公开了一种驱油用双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚羧酸盐表面活性剂及其制备方法。本发明利用长链脂肪醇和环氧氯丙烷反应生成1,3‑二烷氧基‑2‑丙醇（I）,I先后与环氧丙烷和环氧乙烷加成生成双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚（II），II再用氯乙酸羧甲基化得到双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚羧酸盐表面活性剂。该方法制备的表面活性剂在低弱碱或无碱条件下具有较好的溶解性能、界面性能、乳化性能和驱油效果。其中，双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚羧酸盐（diC₁₀GE‑E₁₅P₁₀‑CS）适合作低弱碱表面活性剂，用于油田三元复合驱，具有较高的驱油效率；双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚羧酸盐（diC₁₂GE‑E₁₅P₁₀‑CS）适用作无碱表面活性剂，用于油田二元复合驱。 【EN】The invention discloses a dialkoxy glyceryl ether polyoxyethylene-polyoxypropylene ether carboxylate surfactant for oil displacement and a preparation method thereof. The invention utilizes the reaction of long-chain fatty alcohol and epichlorohydrin to generate 1, 3-dialkoxy-2-propanol (I), the I is added with propylene oxide and ethylene oxide in sequence to generate dialkoxy glycerin ether polyoxyethylene-polyoxypropylene ether (II), and the II is carboxymethylated by chloroacetic acid to obtain the dialkoxy glycerin ether polyoxyethylene-polyoxypropylene ether carboxylate surfactant. The surfactant prepared by the method has good solubility, interface performance, emulsifying performance and oil displacement effect under the condition of low weak base or no base. Wherein the dialkoxy glyceryl ether polyoxyethylene-polyoxypropylene ether carboxylate (diC)₁₀GE‑E₁₅P₁₀CS) is suitable for being used as a low weak base surfactant, is used for oil field ternary combination flooding, and has higher oil displacement efficiency(ii) a Bis-alkoxy glyceryl ether polyoxyethylene-polyoxypropylene ether carboxylate (diC)₁₂GE‑E₁₅P₁₀-CS) is suitable as an alkali-free surfactant for binary combination flooding in oil fields.

摘要：【中文】本发明公开了一种高效表面活性剂的复合体系，属于油田开发三次采油技术领域。该复合体系组成为500mg/L‑4000mg/L的聚合物、0.01%‑1.0%的表面活性剂和0%‑3.0%的碱；其中高效表面活性剂组成由烷基苯磺酸盐与阴非复合型表面活性剂按质量分数5:95‑95:5的比例组成，溶剂质量分数为0‑10%。该复合体系具有更好的溶解性；可在更宽的碱浓度范围内与原油形成超低界面张力；随着碱浓度的增加，复合体系与原油形成的微乳液可由Winsor I型→Winsor III型→Winsor II型连续转变；该复合体系可比水驱提高采收率28个百分点以上，比现有复合体系可多提高采收率10.75个百分点，具有更高的驱油效率。本发明还提供一种高效表面活性剂的复合体系制备方法及其在三次采油中的应用。 【EN】The invention discloses a composite system of a high-efficiency surfactant, belonging to the technical field of tertiary oil recovery in oilfield development. The composition of the complex system is 500mg/L-4000mg/L of polymer, 0.01% -1.0% of surfactant and 0% -3.0% of alkali; wherein the high-efficiency surfactant comprises alkylbenzene sulfonate and a non-composite surfactant according to the mass fraction of 5:95-95:5, and the mass fraction of the solvent is 0-10%. The complex system has better solubility; can form ultra-low interfacial tension with crude oil in a wider alkali concentration range; with the increase of the alkali concentration, the microemulsion formed by the composite system and the crude oil can be continuously converted from Winsor type I → Winsor type III → Winsor type II; the compound system can improve the recovery ratio by more than 28 percent compared with water drive, can improve the recovery ratio by more than 10.75 percent compared with the existing compound system, and has higher oil displacement efficiency. The invention also provides a preparation method of the composite system of the high-efficiency surfactant and application of the composite system in tertiary oil recovery.

摘要：【中文】本发明公开了一种驱油用双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚硫酸盐表面活性剂及其制备方法。本发明利用长链脂肪醇和环氧氯丙烷反应生成1,3‑二烷氧基‑2‑丙醇（I）,I先后与环氧丙烷和环氧乙烷加成生成双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚（II），II再用氯磺酸硫酸化得到双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚硫酸盐表面活性剂。该方法制备的表面活性剂在低弱碱或无碱条件下具有较好的溶解性能、界面性能、乳化性能和驱油效果。其中，双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚硫酸盐（diC₁₀GE‑E₁₅P₁₀‑SS）适合作低弱碱表面活性剂，用于油田三元复合驱具有较高的驱油效率；双烷氧基甘油醚聚氧乙烯‑聚氧丙烯醚硫酸盐（diC₁₂GE‑E₁₅P₁₀‑SS）适合作无碱表面活性剂，用于油田二元复合驱。 【EN】The invention discloses a dialkoxy glycerol ether polyoxyethylene-polyoxypropylene ether sulfate surfactant for oil displacement and a preparation method thereof. The invention utilizes long-chain fatty alcohol and epichlorohydrin to react to generate 1, 3-dialkoxy-2-propanol (I), the I is added with epoxypropane and epoxyethane to generate dialkoxy glycerol ether polyoxyethylene-polyoxypropylene ether (II), and the II is sulfated by chlorosulfonic acid to obtain the dialkoxy glycerol ether polyoxyethylene-polyoxypropylene ether sulfate surfactant. The surfactant prepared by the method has good solubility, interface performance, emulsifying performance and oil displacement effect under the condition of low weak base or no base. Wherein, bis-alkoxyGlyceryl ether polyoxyethylene-polyoxypropylene ether sulfate (diC)₁₀GE‑E₁₅P₁₀SS) is suitable for being used as a low weak base surfactant and has higher oil displacement efficiency when being used for the oil field ternary combination flooding; bis-alkoxy glyceryl ether polyoxyethylene-polyoxypropylene ether sulfate (diC)₁₂GE‑E₁₅P₁₀-SS) is suitable as an alkali-free surfactant for binary combination flooding in oil fields.