胜利孤东油田含油污泥调堵体系的制备与评价  

Preparation and Evaluation of Plugging Control System Based on Oily Sludge from Shengli Gudong Oilfield

作　　者：朱英月 梁雪蕊 朱荣娇[1,2] 田玉芹 冯霞[1,2] 王占强[1,2] Zhu Yingyue;Liang Xuerui;Zhu Rongjiao;Tian Yuqin;Feng Xia;Wang Zhanqiang(Department of Chemistry,School of Science,Tianjin University,Tianjin 300072,China;Collaborative Innovation Center of Chemical Science and Engineering(Tianjin),Tianjin 300072,China;Petroleum Engineering Technology Research Institute,Shengli Oil Field Branch,SINOPEC,Shandong Dongying 257000,China)

机构地区：[1]天津大学理学院化学系,天津300072 [2]天津化学化工协同创新中心,天津300072 [3]中国石化胜利油田分公司石油工程技术研究院,山东东营257000

出　　处：《化学工业与工程》2020年第5期14-21,共8页Chemical Industry and Engineering

基　　金：“十三·五”国家重大专项40之课题5“致密油气开发环境保护技术集成及关键装备”(2016ZX05040-005)。

摘　　要：为了实现含油污泥的资源化利用,以胜利孤东油田的含油污泥为研究对象,首先对含油污泥的组分和粒径进行了分析,然后对悬浮剂、V(油田污水):V(含油污泥)、交联剂质量分数等进行了优化,最终确定了含油污泥调堵体系的最适宜配方,并对其应用性能进行了研究。实验结果表明:0.3%悬浮剂+V(油田污水)∶V(含油污泥)(1∶1~3∶1)+0.3%交联剂配制的调堵体系,凝胶时间为22~28 h;抗老化性能良好,在60℃下保持180 d,黏度保留率大于91%。室内岩心实验表明:调堵体系封堵后封堵率可达94%以上,突破压力达6.2 MPa以上;经过孔隙体积倍数为50的盐水冲刷后,封堵率仍可大于92%,说明该调堵体系具有较好的封堵性能和耐冲刷性能。该调堵技术不仅有助于解决含油污泥的污染问题,同时还可以实现含油污泥的资源化再利用。In order to realize the resource utilization of oily sludge,the oily sludge of Shengli Gudong Oilfield was taken as the research object.Firstly,the composition and particle size analyses of oily sludge were analyzed,and then the suspension agent,the ratio of oilfield sewage to oily sludge,and the concentration of crosslinking agent were optimized.Finally,the optimal formula of plugging control system based on oily sludge was determined,and its application performance was studied.The experimental results showed that the plugging control system was prepared by 0.3%suspending agent+the ratio of oilfield sewage to oily sludge(1∶1—3∶1)+0.3%crosslinking agent with gel time of 22—28 h.And the aging resistance was good as the viscosity retention rate was more than 91%at 60℃for 180 days.The indoor core experiments showed that the plugging rate reached over 94%,the breakthrough pressure was above 6.2 MPa after plugging.After 50 PV salt water washing,the blocking rate could still be more than 92%,indicating that the plugging control system had good plugging performance and anti-washing performance.The plugging technology not only helps to solve the pollution problem of oily sludge,but also realizes the recycling of oily sludge.

关 键 词：含油污泥 粒径 调堵体系 封堵率 突破压力 耐冲刷性能 胜利孤东油田 

分 类 号：TE39[石油与天然气工程—油气田开发工程] TE992