弱凝胶调驱技术在濮城油西区沙二上2+3层系的应用  

Application of Modulation and Displacement With Weak Gel in 2 + 3 Zones of the Upper Second Section of Shahejie Formation in Western Regions in Pucheng Oilfield

作　　者：郑卫宏[1] 李科生[1] 刘中兴[1] 郭保卫[1] 王坤生[1] 李卫庆[2] 

机构地区：[1]中原油田分公司采油二厂 [2]中原油田分公司信息中心

出　　处：《断块油气田》2002年第3期39-41,共3页Fault-Block Oil & Gas Field

摘　　要：弱凝胶调驱是通过延缓交联技术、控制聚合物与交联剂的反应时间,使得凝胶溶液可以大剂量注入并达到地层深部,且在较高压差下可以流动的“可动”凝胶。它进入地层后,不仅可以改善纵向非均质性,达到“调”的目的,而且可以改善水驱油流度比,解决油藏的层内及平面矛盾,达到“驱”的目的,是一种提高注入水波及效率的综合技术。结合濮城油田西区沙二上2+3油藏的地质特点、存在问题,详细介绍了弱凝胶调驱技术的原理、施工工艺以及在该区块的现场应用情况。In weak gel modulation and displacement, gel solution,mobile at high pressure difference,can be injected into deep formations at high rate, which can improve not only vertical inhomogeneity to gain the purpose of modulation,but also the mobility ratio flooded by water to resolve inner layers and horizontal contradictory, gaining the purpose of displacement. It is a comprehensive technology to enhance displacement efficiency. This paper presents the detailed technology of modulation and displacement with weak gel, its constructions technique and utilizations combining the reservoir geologic characteristics of 2 + 3 zones of the upper section of Shahejie formation in west district of Pucheng Oilfield.

关 键 词：弱凝胶调驱技术 濮城油田 西区沙二上2+3层系 应用 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]