摘要
为实现聚驱区块高效开发,利用经验分析和数值模拟法对注聚参数进行了优选;根据聚驱不同开采阶段特点,对大量井的注聚动态参数进行了分析和计算,总结形成了生产动态调控图版。认为,为保证聚驱效果应采用少量的2500万超高分聚合物作为调堵段塞,1900万高分聚合物进行前期封堵段塞的注入,中后期注入700万抗盐聚合物;利用分类井的浓度匹配可满足对单井的注入浓度进行设计;利用数模法进行注入方案的优化,有利于优化各注入段塞的用量和各段塞的聚合物用量;注入端优化调整图版、采出端优化调整图版、深度调剖选井选层技术规范、采出井压裂技术规范等模板的建立,形成了一套适合于聚驱开发的聚驱配套调整技术,使何时调整、如何调整、如何措施选井变得有据可依。该研究大大提高了聚驱开发效果,也有利于管理水平的提高,应用成效显著。
In order to realize efficient development of polymer flooding blocks, empirical analysis and nu-merical simulation were used to optimize the polymer injection parameters. According to the characteristics of different stages of polymer flooding, the dynamic parameters of polymer injection in a large number of Wells are analyzed and calculated, and the production dynamic control chart is summarized and formed. In order to ensure the effect of polymer flooding, a small amount of 25 million ultra-high content polymers should be used as the plugging control slug, 19 million high-content polymers should be injected into the early plugging slug, and 7 million salt-resistant polymers should be injected in the middle and late stage. The concentration matching of classified Wells can be used to design the injection concentration of a single well. It is beneficial to optimize the amount of each injection slug and the amount of polymer of each injection slug. The establishment of the injection end optimization and adjustment chart, the production end optimization and adjustment chart, the depth profile control well selection and formation selection technical specification, the production well fracturing technical specification and other templates, formed a set of polymer flooding matching adjustment technology suitable for the development of polymer flooding, so that when to adjust, how to adjust, how to measure well selection has become the basis. The research has greatly improved the development effect of polymer flooding, and is also beneficial to the improvement of management level.
出处
《石油天然气学报》
CAS
2021年第1期25-35,共11页
Journal of Oil and Gas Technology
