关键词: 复合驱技术, 聚合物当量, 油藏适应性, 技术经济评价, 采收率

Abstract: The investment of alkali-surfactant-polymer (ASP) flooding project was analyzed and compared with the polymer flooding project.According to the concept of polymer amount used in the polymer flooding project,a new concept of polymer equivalent was defined for the agent amount of ASP flooding.For the reservoirs are potentially recovered by ASP flooding,the requirments of ASP flooding projects for injector-producer distance,polymer equivalent and oil price in different reservoir conditions are analyzed.When the aggregate investment was reduced to the needed increasing oil production under the standard oil price,the lower limit of enhanced oil recovery could be obtained.The comprehensive evaluation model for the reservoir adaptability of ASP flooding technology was economically established.This model is simple and credible for evaluating the development plan of ASP flooding project.

Key words: ASP flooding technology, polymer equivalent, reservoir adaptability, technical and economic evaluation, oil recovery