张海502井钻井液技术  

Drilling Fluid Technology for ZhangHai 502 Well

作　　者：田春雨[1] 毕井龙[1] 张松杰[2] 周明信[3] 陈少亮[1] 黄达全[1] 孔庆明[1] 王禹[1] 

机构地区：[1]大港钻井泥浆技术服务公司 [2]大港钻井工程公司 [3]大港油田滩海勘探开发公司

出　　处：《钻井液与完井液》2006年第4期21-24,87,共5页Drilling Fluid & Completion Fluid

摘　　要：张海502井完钻斜深为4360 m,最大井斜为56°,井底水平位移为3019.06 m,位移垂深比为1.04∶1。井斜大、位移长、浅定向、大井眼段长是其主要特点,且50°~56°稳斜段长达3480 m,其中井深1100 m到3600 m为φ311 mm大井眼,这给携岩、砂床控制、防卡等提出了极高要求。二开采用聚合物钻井液,三开、四开采用硅基防塌钻井液。该井使用合理的流变性能和多种有效的工程技术措施解决了携岩及砂床控制问题,用固液结合润滑技术解决了防卡问题,用超低渗透油层保护技术解决了钻完井油层保护问题,用GWJ、GWX、SAS、硅腐钾等处理剂和合理的密度解决了井塌问题,为将来采用常规钻井液体系和现场技术低成本地完成类似高难度井提供了借鉴意义。The total depth of ZhangHai 502 well was 4360 m.The maximum deviation angle was 56° and the horizontal displacement was 3019.06 m.The ratio of displacement to vertical depth was 1.04:1.The well were characteristic of large deviation angle,long displacement,shallow directional point and long large hole section.The holding angle was 50°-56° and the holding section was 3480 m long in which it was a φ 311 mm hole for the section of the depth from 1100 m to 3600 m and thus they were very difficult to transport c...

关 键 词：大斜度井 大位移井 井眼净化 探井 润滑 硅基防塌钻井液 

分 类 号：TE254[石油与天然气工程—油气井工程]