Invention Grant
US09359888B2 Method and apparatus for transmitting or receiving information between a downhole equipment and surface
有权
用于在井下设备和表面之间发送或接收信息的方法和装置
- Patent Title: Method and apparatus for transmitting or receiving information between a downhole equipment and surface
- Patent Title (中): 用于在井下设备和表面之间发送或接收信息的方法和装置
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Application No.: US14325374Application Date: 2014-07-08
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Publication No.: US09359888B2Publication Date: 2016-06-07
- Inventor: Erwann Lemenager , Martin G. Luling , Yves G. Mathieu , Christian Chouzenoux
- Applicant: Schlumberger Technology Corporation
- Applicant Address: US TX Sugar Land
- Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee Address: US TX Sugar Land
- Priority: EP05291628 20050729
- Main IPC: E21B47/12
- IPC: E21B47/12 ; G01V3/08 ; G01V11/00
Abstract:
Techniques involve determining the conductivity profile of a formation from a well between a surface location and a borehole location. The method involves placing a first sensor at the surface location, a second sensor located at the borehole location, obtaining a first signal by detecting Schumann resonances from the electric field occurring at the first location, obtaining a second signal by detecting Schumann resonances from the electric field occurring at the second location with the second sensor; and combining the first and the second signal to determine the conductivity profile of the formation between the first location and the second location.
Public/Granted literature
- US20140318767A1 Method and Apparatus for Transmitting or Receiving Information Between A Downhole Equipment and Surface Public/Granted day:2014-10-30
Information query
