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公开(公告)号:EP3428387B1
公开(公告)日:2020-03-11
申请号:EP18183206.4
申请日:2018-07-12
发明人: NESHEIM, Tom Inge , TONNING, Daniel
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公开(公告)号:EP3612708A1
公开(公告)日:2020-02-26
申请号:EP18723908.2
申请日:2018-04-19
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公开(公告)号:EP3559410A1
公开(公告)日:2019-10-30
申请号:EP17823136.1
申请日:2017-12-21
发明人: FISCHER, Sebastian
IPC分类号: E21B47/09 , E21B47/12 , G01V3/26 , B64C39/02 , E21B47/022
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公开(公告)号:EP3460173B1
公开(公告)日:2019-10-16
申请号:EP18206031.9
申请日:2015-09-17
申请人: Salunda Limited
IPC分类号: E21B19/14 , E21B47/09 , E21B47/01 , H03K17/945 , H01H36/00
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公开(公告)号:EP2652262B1
公开(公告)日:2019-10-16
申请号:EP11848312.2
申请日:2011-11-17
发明人: KUMARAN, Krishnan , SUBRAHMANYA, Niranjan, A. , ENTCHEV, Pavlin, B. , TOLMAN, Randy, C. , ANGELES BOZA, Renzo, M.
IPC分类号: E21B47/09
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公开(公告)号:EP3548701A1
公开(公告)日:2019-10-09
申请号:EP17875911.4
申请日:2017-11-28
IPC分类号: E21B47/022 , E21B47/024 , E21B47/09
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公开(公告)号:EP3492695A1
公开(公告)日:2019-06-05
申请号:EP18208507.6
申请日:2013-03-15
申请人: Halliburton AS
摘要: Wireless downhole sensor technology is being deployed in oil and gas wells. System components are inductively coupled, which enables remote placement of apparatus on the outside of wellbore conduit without the need for any wired connection. These systems make use of a pair of conductive elements that need to be aligned in the well. The present invention provide techniques to correctly space out the wellbore completion string so that the downhole conductive elements will be properly aligned and within proximity to establish wireless connectivity, as the wellbore completion string is set and the tubing hanger is landed inside the wellhead housing of the well.
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公开(公告)号:EP3488076A1
公开(公告)日:2019-05-29
申请号:EP16918435.5
申请日:2016-10-06
IPC分类号: E21B47/022 , E21B47/024 , E21B47/09
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