摘要
应用多分支水平井勘探开发油气藏，比用直井效益更好。虽然其钻井成本比直井高，但是一口水平井往往可以取代多口直井，且具有相当于多口直非的产量。因此，90年代以来世界水平井钻井技术获得长足进步，包括多分支水平并应用大大增加，先进的水平并钻头、先进的井下钻井液马达、旋转导向钻井系统、遥控式可调直径的井下稳定器、新型短半径钻井系统、小眼井水平井钻井以及地质导向技术等。文中对此逐一进行介绍。
Reservoir exploration and development by multi-lateral horizontal wells has greater economic benefits than straight wells. Although drilling cost of a multi-lateral horizontal well is higher than a straight welt a horizontal well can replace many straight wells and has comparable production. So, world horizontal drilling technology has got great development in 90's, including increasing application of multi-lateral horizontal drilling technology, advanced horizontal drilling bit, downhole drilling fluid motor, rotary navigstional drilling system, remote-controlled adjustable downhole stabilizer, new type short-radius drilling system, slim hole horizontal drilling and steerings technique, etc. This article presents detailed description of them.
出处
《钻采工艺》
CAS
1999年第3期47-52,共6页
Drilling & Production Technology
关键词
定向井
水平井
钻头
井下工具
钻井
分支井
directional well, horizontal well, bit, stabilizer, downhole tool, bit guide
