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Reaming system reliably lands casing and liners

机译:扩孔系统可靠地使套管和衬管着陆

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摘要

Aberdeen-based Deep Casing Tools completed its first operation in the Norwegian North Sea, with a successful 21-hr reaming run. Two conventional attempts to run a 7-in. liner to total depth (TD) had been unsuccessful in the Statoil-operated Gullfaks satellite well, resulting in the liner hanging up, hundreds of m from TD. The problem was caused by borehole instability and severe washout in the weak shales, coals and notorious paleosols of the area.
机译:基于阿伯丁的深套管工具在挪威北海完成了首次作业,并成功进行了21小时的扩孔。两次常规尝试以7英寸运行。在由挪威国家石油公司(Statoil)运营的Gullfaks卫星井中,衬管至总深度(TD)一直未成功,导致衬管悬垂,距TD数百米。该问题是由于该地区薄弱的页岩,煤和臭名昭著的古土壤中的井眼不稳定和严重冲刷造成的。

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