常压井段负压钻井技术探讨  

Discussion on Underbalanced Drilling Techniques under Conventional Pressure Formations

作　　者：侯绪田 曾义金 郭才轩 李国华 

机构地区：[1]中国新星石油公司石油钻井研究所

出　　处：《石油钻探技术》1999年第1期15-17,共3页Petroleum Drilling Techniques

摘　　要：在地层压力系数大于１．０的条件下，可采用常规水基钻井液进行负压钻井，以解决易漏地层的钻井漏失问题，减少产层损害。论述了负压钻井有关参数设计问题，并用新疆塔里木盆地北部的Ｔ４０１井的试验说明负压钻井技术特点和应用效果。At formation pressure coefficient over 1 0, conventional water base drilling fluid can be applied for underbalanced drilling so as to tackle fluid leakage problem and cause less damage to reservoir. Technical parameters and application results are discussed by taking Well T401,Tarim Basin as an example.

关 键 词：负压钻井 钻井液密度 钻井技术 钻具组合 

分 类 号：TE249[石油与天然气工程—油气井工程] TE242