一种高失水堵漏剂KSD-1的室内评价及现场应用  

Laboratory Evaluation and Field Application of a High Water Loss Plugging Agent KSD-1

作　　者：李磊[1] 祝学飞 侯博 麻洪霞 宋芳 Li Lei;Zhu Xuefei;Hou Bo;Ma Hongxia;Song Fang(Tarim Oilfi eld Branch of CNPC,Xinjiang,841000;Xinjiang Branch,China Petroleum Group Chuanqing Drilling Engineering Co.,Ltd.,Xinjiang,841000;Changqing Drilling General Company,China Petroleum Group Chuanqing Drilling Engineering Co.,Ltd.,Shaanxi,710000;Chengdu Xiyou Huawei Technology Co.,Ltd.,Sichuan,610500)

机构地区：[1]中国石油天然气股份有限公司塔里木油田分公司,新疆841000 [2]中国石油集团川庆钻探工程有限公司新疆分公司,新疆841000 [3]中国石油集团川庆钻探工程有限公司长庆钻井总公司,陕西710000 [4]成都西油华巍科技有限公司,四川610500

出　　处：《当代化工研究》2025年第1期93-95,共3页Modern Chemical Research

摘　　要：井漏是钻井过程中最常见且最难以治理的井下复杂情况之一。针对裂缝、缝洞等导致的钻井液失返恶性复杂漏失,提出一种可凝结高失水堵漏剂KSD-1,并对其进行了室内评价。结果表明:KSD-1高失水堵漏剂与清水可以配制成不同浓度、可泵送的堵漏浆,堵漏浆加重后悬浮稳定性良好,抗温可达200℃,在一定压力下可快速失水压实形成堵塞,堵塞可变形,具有一定抗压性,通过对裂缝的自适应性变化进行填充实现堵漏。堵塞酸溶率达87%,高失水堵漏完成后可酸化解堵,保护储层。采用该堵剂结合高失水堵漏工艺,成功应用于现场两口井堵漏,为水基钻井液复杂漏失控制提供了有效的技术途径。Lost circulation is one of the most common and difficult downhole complications in the drilling process.A coagulable high wa-ter loss plugging agent KSD-1 was proposed and evaluated for the malignant and complex drilling fluid loss caused by cracks and holes.The results show that KSD-1 and water can be prepared into different concentrations of pumpable plugging slurry,and the plugging slurry has good suspension stability and temperature resistance up to 200℃.Under a certain pressure,the plugging can be formed by rapid water loss compaction.The plug-ging can be deformed and has a certain compressive resistance.The plugging can be realized by filling the adaptive change of the crack.The acid solubility of plugging is 87%,and after the completion of high water loss plugging,the acid can dissolve the plugging and protect the reservoir.The plugging agent combined with high water loss plugging technology has been successfully applied to plugging two wells in the field,providing an ef-fective technical approach for complex loss control of water-based drilling fluid.

关 键 词：高失水堵漏剂 井漏 堵塞 

分 类 号：TE28[石油与天然气工程—油气井工程]