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二连油区的低渗透砂岩油藏已投入开发十几年，其年产量曾一度稳定在70×104t左右，其开发过程具有自身的特点，尤其是以“西南”油田为代表的多数区块，为了改善开发效果，实施过完善注采系统、细分开发层系、井网加密、强注强采、调水增油等措施，开展过储层伤害、裂缝分布、周期注水等方面的研究，目前已进入深度开发阶段。开发过程中取得了一些成功的经验，也暴露了一些开发问题。本文从油藏工程的角度，总结分析了该类油藏在注水政策、压裂与重复压裂、油层伤害、地层裂缝、井网部署与调整、稳产接替方式、低速低效区块的二次开发、经济效益以及新技术应用等方面的实践经验，讨论了开发中存在的一些问题，提出了一些新的认识，并指出了今后的工作方向，目的是更清楚地认识和解决油藏开发中的某些问题，以期为该类油藏的合理开发提供参考。
The low permeability sandstone reservoir in Erlian oil zone has been put into development for more than ten years. Its annual output has been stable at 70 × 104t once, and its development process has its own characteristics, especially in most of the blocks represented by Southwest oilfield In order to improve the development effect, we have implemented such measures as perfect injection and recovery system, subdivision development strata system, well network encryption, strong injection and strong stimulation, water and oil increase, etc. to carry out researches on reservoir damage, distribution of fractures and periodic water injection , Has now entered the depth of development. The development process has made some successful experience, but also exposed some development issues. In this paper, from the perspective of reservoir engineering, this paper analyzes and summarizes the characteristics of such reservoirs in terms of water injection policy, fracturing and repeated fracturing, reservoir damage, formation fractures, deployment and adjustment of well pattern, steady-production succession mode, Development, economic benefits and application of new technologies, discussed some problems existing in development, put forward some new understandings and pointed out the future work direction with the purpose of more clearly understanding and resolving problems in reservoir development In order to provide a reference for the rational development of such reservoirs.