油气地质与采收率2017，Vol.24Issue(6)：103-107,5.
渤海油田大尺寸优势通道封堵剂性能评价
Performance evaluation of plugging agent for large-size prefenrential channels in Bohai Oilfield
摘要
Abstract
Compared with the onshore oilfield,Bohai Oilfield has great differences in reservoir geological characteristics,injection-production parameters and completion methods.In order to solve the technical problem of the fluid channeling in Bohai Oilfield,the experimental study on the composition selection and performance evaluation of the plugging agent was carried out based on the reservoir characteristics and fluid properties in Bohai Oilfield.The results show that the plugging agent is a dark gray compact solid,which consists of main agent,curing agent,thickener and retarder.It is a kind of plugging agents for large-size prefenrential channels which have the characteristics of high compressive strength and low permeability.Little correlation between total mineralization degree of the solvent and curing time,however,the CO32-and HCO3-in the solvent are beneficial to prolong the curing time.From the technical and economic point of view,the mass fraction of main agents is no less than 30％ and the mass fraction of retarder ranges from 0.05％ to 0.1％.Construction time can met the requirements by adjusting the the mass fraction of the retarder.When the formula of the plugging agent is made up of "thickener 5％ + curing agent 0.15％ + retarder 0.1％ + main agent 30％",the curing time is about 20 h.关键词
大尺寸优势通道/固化时间/封堵剂/性能评价/渤海油田Key words
large-size prefenrential channels/curing time/plugging agent/performance evaluation/Bohai Oilfield分类
能源科技引用本文复制引用
王婷婷,卢祥国,陈阳,潘赫,张云宝,夏欢..渤海油田大尺寸优势通道封堵剂性能评价[J].油气地质与采收率,2017,24(6):103-107,5.基金项目
国家科技重大专项“渤海双高油田多级窜逸堵调驱一体化技术研究及示范”(2016ZX05058-003-010),中海石油(中国)有限公司天津分公司重点攻关课题“无机复合地质聚合物凝胶调堵技术及其配套方法研究”(CCL2016TJTJLST0676). （2016ZX05058-003-010）
