Invention Grant
- Patent Title: Methods and apparatus for communicating across casing
- Patent Title (中): 用于跨套管沟通的方法和装置
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Application No.: US11719382Application Date: 2005-11-24
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Publication No.: US07703515B2Publication Date: 2010-04-27
- Inventor: Christian Chouzenoux , Veronique Nouaze
- Applicant: Christian Chouzenoux , Veronique Nouaze
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Myron K. Stout
- Priority: EP04292801 20041126
- International Application: PCT/EP2005/012693 WO 20051124
- International Announcement: WO2006/056474 WO 20060601
- Main IPC: E21B47/00
- IPC: E21B47/00 ; E21B49/00
Abstract:
A system for passing an electromagnetic signal through a casing comprises a tool body that can be positioned inside the casing; means for magnetically saturating the casing in the vicinity of the tool; a transmitter for transmitting an electromagnetic signal from the tool antenna to the outside of the casing for reception at one or more sensors equipped with an antenna and electronic circuits located outside the casing; and a detector for detecting an electromagnetic signal at the tool from the sensor located outside the casing.
Public/Granted literature
- US20090159276A1 Methods and Apparatus for Communicating Across Casing Public/Granted day:2009-06-25
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