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本项研究的目的是描述研究ASP配方所采用的方法 ;描述在 2 0 0 0年进行的先导性试验 ;还要确定在VLA 6/ 9/ 2 1油田的始新统C 4油藏单元 ,用ASP技术是否能够经济地采出增加的原油。研究出适用于VLA 6/ 9/ 2 1油田的几种ASP溶液。每种ASP溶液的界面张力值都低于 9× 10 - 3dyne/cm。用不同的添加剂对聚丙烯酰胺聚合物进行的流变学研究表明 ,溶液粘度至少能够保持比原油粘度高 2cP。碱表面活性剂聚合物的滞留量低于 0 0 8mg/g。增产油量比水驱采油量高 ,在油藏岩心中注 0 3PV的ASP溶液和 0 15PV的聚合物获得的采收率在 2 2 %和 39%之间
The purpose of this study was to describe the methodology used to study ASP formulations; to describe the pilot tests conducted in 2000; and to determine the Eocene C4 reservoir units in the VLA 6/9/2 1 field, Whether using ASP technology can economically recover the increased crude oil. Several ASP solutions for the VLA 6/9/2 1 field have been developed. The interfacial tension of each ASP solution is lower than 9 × 10 -3 dyne / cm. Rheological studies of polyacrylamide polymers with different additives showed that the viscosity of the solution can be maintained at least 2 cP higher than that of crude oil. The amount of alkali surfactant polymer retained less than 0 0 8mg / g. Oil recovery was higher than that of waterflooding. The oil recovery of 0 3PV ASP solution and 0 15PV polymer in reservoir cores was between 22% and 39%