简介：挪威石油和贝克休斯联合研发出世界上首个随钻导向衬管系统。该项技术此前曾在新老油田上都应用过，也在挪威北海油田的布拉吉海洋平台上获得试用成功。贝克休斯称：新技术的理念是将尾管（衬管）直接连接附加在钻具上，司钻人员可以使用导向系统精确钻进，并记录下油井三位剖面图。而传统钻井工艺中，在下套管前，或在下入尾管前，必须起出钻具。

Statoil and Baker Hughes have joined forces to develop the world's first rotary steerable liner-while-drilling system. The technology, which reportedly has applications in fields both new and mature, was successfully tested from Statoil's Brage platform in the Norwegian sector of the North Sea.

The concept of the new system—a rotary steerable system that gives operators the ability to accurately drill and log 3D well profiles with a liner attached directly to the drillstring—is entirely new, according to Baker Hughes.

In conventional drilling operations, it is necessary to pull the drillstring before the casing or liner can be run into the borehole. Liner drilling systems eliminate the need to pull the drillstring to run casing, saving time and drilling costs by minimizing the risk of borehole collapse and reducing nonproductive time. The addition of rotary steerable capabilities helps overcome the challenges of drilling in zones with lower pressure and unstable shale/coal layers and in formations with varying flow and pressure regimes. The system is designed to withstand high circulation rates and high torque loads while providing liner connect and disconnect capabilities.

Statoil and Baker Hughes qualified and verified this drilling technology through a rigorous development process and conducted extensive onshore testing before deploying it on the Brage platform. A research group in Statoil's technology and new energy division (TNE) worked in cooperation with Baker Hughes during this development and qualification process.

"This project highlights the advantages of bringing together experts from several different disciplines to work collaboratively on a project that encompasses both the drilling and completion well construction processes," said Gary Rich, president, Europe region, for Baker Hughes.

Following a second deployment in January at Statoil's Statfjord Field, the new technology will be commercialized.

To learn more, visit www.bakerhughes.com/steerable_liner.

杨宝剑 是全球石油网的高级技术编辑，在石油技术资讯行业有八年的学识和经验。他源源不断地提供石油行业全球最新的技术创新、研发成果、现场应用情况等信息。如果你对“新技术新产品”的内容有任何问题或建议，请联系杨宝剑编辑 +86 10-58236512 Email：allenyo＃zhenweiexpo.com （＃变为＠）欢迎您提供手中的最新技术文章！