表面活性剂和石油磺酸盐.doc

一种阴离子非离子复合表面活性剂和石油磺酸盐的影响，用在生力孤东油田聚合物驱，东中国表面活性剂，对孤东原油模型油和合成的地层水的界面性质的界面张力测量的研究， interfacial viscoelasticity and Zeta potential. The infl uence of the surfactants on the stability of Gudong water-in-oil (W/O) and oil-in-water (O/W) emulsions was evaluated by separating water from the W/O emulsion and residual oil in the aqueous phase of the O/W emulsion respectively. The results showed that the two kinds of surfactants, namely anionic-nonionic composite surfactant and petroleum sulfonate, are both able to decrease the interfacial tension between the oil phase and the aqueous phase and increase the surface potential of the oil droplets dispersed in the O/W emulsion, which can enhance the stability of the W/O and O/W crude oil emulsions. Compared with petroleum sulfonate, the anionic-nonionic composite surfactant is more interfacially active and able to enhance the strength of the interfacial fi lm between oil and water, hence enhance the stability of the W/O and O/W emulsions more effectively 界面粘弹性和Zeta电位。的表面活性剂对孤东油中的水稳定性的影响（W / O）和水包油型（O / W）的水从的o / w乳液的水相的W / O乳液分别与剩余油的分离进行了乳液。结果表明，两种表面活性剂，即阴离子和非离子复合表面活性剂和石油磺酸盐，均能降低界面张力的油相、水相、增加油滴分散在O / W型乳液的表面电位，可以提高稳定的W / O和O / W型原油乳状液。与石油磺酸盐阴离子非离子表面活性剂相比，复合材料的界面活性，更能提高油和水之间的界面膜的强度，从而提高的W / O和O / W型乳状液的稳定性更有效 表面活性剂驱油聚合物（SP）是近年来提高生力孤东油田采收率的一种有效技术在中后期。该技术使用部分水解聚丙烯酰胺（HPAM）作为聚合物。溶解的聚合物可以增加驱替液的粘度，降低水的流度比油，提高波及效率。表面活性剂可降低 interfacial tension of water and oil and improve the cleaning efficiency. Therefore, SP flooding can enhance oil recovery greatly.The bivalent cations dissolved in the reservoir, such as Ca2+ and Mg2+, can precipitate the molecules of HPAM and anion surfactant of petroleum sulfonate, and then reduce the flooding effi ciency. To solve this problem, petroleum sulfonate 油和水的界面张力，提高清洗效率。因此，SP驱可以大大提高原油采收率。在水库溶解的二价阳离子，如Ca2 +和Mg2 +，可以沉淀HPAM和石油磺酸盐阴离子表面活性剂分子，然后降低驱油效率。为了解决这个问题，石油磺酸盐 is used as the main surfactant, and an anionic-nonionic composite surfactant is used as cosurfactant in Gudong oilfield. As a result it can reduce th