大庆石油地质与开发2025，Vol.44Issue(3)：64-69,6.DOI:10.19597/J.ISSN.1000-3754.202404023
大庆油田二次上返区块封堵失效井的识别与治理
Identification and treatment of failed plugging wells in secondary upward development block in Daqing Oilfield
付青春 1黄凯 1师磊1
作者信息
- 1. 中国石油大庆油田有限责任公司第三采油厂,黑龙江 大庆 163113
- 折叠
摘要
Abstract
Block A is one of the first upward development blocks in Daqing Oilfield,with plugging SⅡ10-SⅢ10 strata series and secondary upward developing SⅡ1-9 strata series.Due to the existence of plugging failure,development effect is not as good as the first upward.Aiming at the problem of development affected by failed plugging intervals after upward development in Block A,research and analysis are performed focusing on 4 aspects including injectivi-ty,fluid productivity,polymer mass concentration in produced fluid and response degree.Response characteristics of different types of failed plugging wells are clarified through targeted construction of plugging failure evaluation pa-rameters of variation amplitudes of apparent injectivity index,fluid production index,water cut and polymer mass concentration in produced fluid.Chart for identifying plugging failure layers is established combining with produc-ers response,and applied to 317 wells in Block A,with identification accuracy of 90.8%.The research effectively guides the identification of failed plugging wells in upward development block,minimizes interference between wa-ter flooding and polymer flooding and ensures the effect of polymer flooding development.关键词
封堵失效/两驱干扰/二次上返/聚驱/大庆油田Key words
plugging failure/interference between water flooding and polymer flooding/secondary upward devel-opment/polymer flooding/Daqing Oilfield分类
石油、天然气工程引用本文复制引用
付青春,黄凯,师磊..大庆油田二次上返区块封堵失效井的识别与治理[J].大庆石油地质与开发,2025,44(3):64-69,6.
