轮东1井超深井钻井液技术  

The Drilling Fluid Technology for Ultra-deep Well Lundong-1

作　　者：吕志强[1] 王书琪[2] 尹达[2] 于松法[1] 刘毅[1] 李磊[1] 

机构地区：[1]塔里木油田分公司建设有限责任公司 [2]塔里木油田分公司钻井技术办公室

出　　处：《钻井液与完井液》2008年第6期36-38,共3页Drilling Fluid & Completion Fluid

摘　　要：轮东1井是目前中国石油天然气集团公司在陆上钻的第一风险预探井,完钻井深为7 620 m。该井四开地层情况复杂,地层压力系数低、埋藏深、厚度大,极易发生漏、塌、溢等复杂。通过室内实验调整膨润土量和处理剂加量,优选出不同抗高温处理剂,现场并作了复查实验,最终确定了钻井液配方。经轮东1井的现场应用表明,该钻井液不仅满足了井下的生产需要,而且达到了预先设想的要求,其流变性、悬浮携带能力在200℃以内比较稳定;高温高压滤失量在160℃以内小于8 mL,200℃以内小于22 mL;分别在180℃下老化96 h、200℃下老化48 h,其性能均稳定。该技术为超深井钻井提供了一项技术储备。Well Lundong-1 is an exploration well with a completion depth of 7,620 m.Downhole troubles such as mud losses,bore hole sloughing and water kick existed in the forth interval of the well.A drilling fluid formulation was optimized combining laboratory study and field practice.The application of the designed drilling fluid in Well Lundong-1 showed stable rheology and carrying capacity at temperatures up to 200 ℃.The HTHP fluid loss was less than 8 mL at 160 ℃ and less than 22 mL at 200 ℃.Aging for 96 hours at 180 and 48 hours at 200 found stable properties of the drilling fluid.

关 键 词：高温钻井液 钻井液配方 井眼稳定 抗高温 超深井 轮东1井 

分 类 号：TE254.3[石油与天然气工程—油气井工程]