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公开(公告)号：US10161221B2
公开(公告)日：2018-12-25
申请号：US14557709
申请日：2014-12-02
Applicant: CONOCOPHILLIPS COMPANY
Inventor： James A. Mills , Robert S. Redman , David L. Lee
Abstract: A method and system for insulating wells using dual concentric vacuum insulated tubing layers with joints staggered with respect to one another. The method can be combined with other insulating methods, and well as with other subsidence mitigation techniques.
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