高陡构造井壁失稳及井下复杂的机理研究  

MECHANISM RESEARCH ON SIDEWALL UNSTABILITY AND DOWNHOLE COMPLEXITY IN HIGH AND STEEP STRUCTURE OF XINJIANG OILFIELD

作　　者：杜青才[1] 石晓兵[1] 聂荣国[1] 徐显广[2] 李维鲜[2] 陈平[1] 查永进[2] 张文波[2] 

机构地区：[1]西南石油学院 [2]新疆油田分公司

出　　处：《钻采工艺》2004年第4期6-7,共2页Drilling & Production Technology

基　　金：中石油新疆油田分公司科技攻关项目"准噶尔南缘勘探井筒配套技术研究"的部分内容;西南石油学院基金项目 (编号 :院 2 3 7)

摘　　要：新疆油田霍 10井区是准噶尔南缘的重点勘探区域 ,由于地层倾角大、地层各向异性强、井身质量差和机械钻速低是该地区钻井工程突出的问题。从理论上探讨了高陡构造井壁失稳、井下复杂的机理 ,针对霍 10井区高陡大倾角构造、地层各向异性的地质特征 ,分析研究了可用于该研究区域的井眼稳定的方法和技术 ,对霍 10井区对井身质量和钻井机械效率的提高具有一定的指导作用。Huo 10 wellblock of Xinjiang Oilfield is an important exploration region.For large stratigraphic dip and strong formation anisotropism,poor wellbore quality and low ROP are very projective problem during drilling in the area.The paper discusses the mechanism of sidewall unstability and downhole complexity in high and steep structure in theory.Based on the geologic features of Huo 10 wellblock, the method and technique of keeping sidewall stabilization used in the region are researched. It has directory acting for improving wellbore quality and drilling efficiency of Huo 10 wellblock.

关 键 词：井壁 各向异性 倾角 地层 机械钻速 钻井工程 井眼 

分 类 号：TE21[石油与天然气工程—油气井工程]