负压钻井技术在塔北奥陶系地层中的应用  

Application of Underbalanced Drilling Technology in Ordovician System in Northern Tarim

作　　者：刘玉华 唐世春 李江 秦红祥 

机构地区：[1]中国新星石油公司工程部,北京100083 [2]中国新星石油公司西北石油局,新疆乌鲁木齐830011 [3]中国新石油公司石油钻井研究所,山东德州253005

出　　处：《石油钻探技术》1999年第6期9-10,共2页Petroleum Drilling Techniques

摘　　要：介绍了塔北地区古生界奥陶系地层的特点， 并以沙６６ 井为例， 对该井奥陶系地层的负压钻井设计及现场施工（包括所用设备、钻井参数、泥浆性能等） 情况进行了描述。该井的钻井实践表明， 负压钻井技术能有效保护油气层， 避免了井下复杂情况的发生， 有利于提高机械钻速并降低钻井成本， 是塔北奥陶系复杂地层钻井的一项重要新技术， 值得广泛推广应用。This paper introduces the characteristics of Ordovician System formation in Tabei Area. Taking an example of Sha 66 well, underbalanced drilling design and field operation (including the equipment, drilling parameters and mud, etc.) in Ordovician system formation of this well are described. The underbalanced drilling operation of this well shows that under-balanced drilling is one kind of useful technology to exploit the complicated formations of Ordovician system in Tabei area, protects oil and gas reservoirs effectively, avoids hole problems, improves penetration rate and reduces drilling costs. It is worthy of wide applications of under-balanced drilling technology.

关 键 词：负压钻井 奥陶纪 塔里木盆地 油气勘探 

分 类 号：TE249[石油与天然气工程—油气井工程] P618.130.8[天文地球—矿床学]