聚胺复合盐润滑防塌钻井液在孤东斜288井的应用  

Application of Polyamine Composite Salt Drilling Fluid with Lubricatingand Anti Collapse Ability in Gudongxie 288 Well

作　　者：厉明伟 周建民 秦涛 王志 王伟 邱春阳 LI Ming-wei;ZHOU Jian-min;QIN Tao;WANG Zhi;WANG Wei;QIU Chun-yang(Drilling Fluid Tech-Service Center,Shengli Petroleum Engineering Co.,Ltd.,SINOPEC,Dongying 257078,China;Bohai Drilling Company of Shengli Petroleum Engineering Ltd.,Dongying 257200,China)

机构地区：[1]中石化胜利石油工程有限公司钻井液技术服务中心,山东东营257078 [2]中石化胜利石油工程有限公司渤海钻井公司,山东东营257200

出　　处：《兰州石化职业技术大学学报》2024年第3期13-16,共4页Journal of Lanzhou Petrochemical University of Vocational Technology

摘　　要：孤东斜288井是胜利工程公司重点定向评价井,设计井深4595.14m。孤东区块上部地层发育较厚,黏土矿物含量高,易发生缩径,造成起下钻阻卡;沙河街组地层层理、孔隙及微细裂缝发育,井壁失稳严重;地层中碳酸氢根离子含量高,钻井液易遭受流体污染;二开定向过程中钻井液井眼净化及润滑防卡技术难度大。优选聚胺复合盐润滑防塌钻井液体系,辅助现场钻井液施工工艺,确保孤东斜288井工程顺利施工;钻井周期较设计降低10.0%;完井周期比设计降低9.87%;全井平均机械钻速为9.78m/h,达到了优快钻井的效果。Gudongxie 288 well is an important evaluation well of Shengli engineering company.The actual completion depth is 4571.00m.The thickness about upper strata is great,and the content of clay mineral is high,so the complex circumstance of hole shrinkage and blockage during tripping occur easily during the course of drilling.The situation of wellbore instability is serious because of the development of bedding,pores and micro fractures in Shahejie formation.The content of bicarbonate ion in formation is high,and the drilling fluid is easy to be polluted.The technology difficulty of hole cleaning and lubrication is very great due to long inclined section.The polyamine composite salt and anti collapse drilling fluid system with strong inhibition ability and lubrication is optimized.Under the help of corresponding drilling fluid maintenance and treatment technics,the well is drilled smoothly.The drilling cycle is reduced by 10.0%compared to the design;The completion cycle is reduced by 9.87%compared to the design,with average ROP of 9.78m/h.At last,the effect of excellent and fast drilling was achieved.

关 键 词：孤东斜288井 大位移 长裸眼 聚胺复合盐 井壁稳定 

分 类 号：TE927[石油与天然气工程—石油机械设备]