大庆油田二类油层聚合物驱见效规律与认识  

Effectiveness Regularity of Polymer Flooding in Class II Reservoirs in Daqing Oilfield

作　　者：周钢[1] 

机构地区：[1]大庆油田有限责任公司第一采油厂,黑龙江大庆163001

出　　处：《内蒙古石油化工》2009年第4期140-141,共2页Inner Mongolia Petrochemical Industry

摘　　要：大庆油田主力油层聚合物驱开发技术已经成熟,二类油层聚合物驱与主力油层聚合物驱相比有很大的差别,二类油层聚合物驱见效规律也难以把握。因此我们通过室内研究,不断深化油藏地质认识、总结动态开发特点,分析存在的问题。形成了"以聚驱控制程度为核心,以限制注聚对象、细分层系、优化注聚方案为主要内容"的二类油层聚合物驱总体开发原则;得出二类油层见效规律与主力油层相比注入采出能力低,井点间受效不均衡的新认识。为二类油层大面积推广应用及产量接替提供了技术保障。The development technology of polymer flooding in major reservoirs has become mature, however, it is hard to grasp the effectiveness regularity of the technology in class Ⅱ reservoirs due to dif- ferences between major reservoirs and class Ⅱ reservoirs. Therefore, based on laboratory study in this paper, geological situation of reservoirs, dynamic development characteristics, and existing problems are further investigated. The general development principles of polymer flooding in class Ⅱ reservoirs take the polymer flooding control extent as the core and polymer flooding object restriction, layer subdivision, and injection schemes optimization as the main points. Comparing with the major reservoirs, the injection and production capability is lower in class Ⅱ reservoirs and the inter--well effect is uneven. The study will provide technical support for large--area extension and application of polymer flooding in class Ⅱ reservoirs and production replacement.

关 键 词：二类油层 见效规律 认识 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程] TE321