Invention Grant
- Patent Title: Active noise cancellation through the use of magnetic coupling
- Patent Title (中): 通过使用磁耦合来主动消除噪声
-
Application No.: US12646694Application Date: 2009-12-23
-
Publication No.: US07911877B2Publication Date: 2011-03-22
- Inventor: Douglas J. Patterson , Xiao Ming Tang , Alexei Bolshakov
- Applicant: Douglas J. Patterson , Xiao Ming Tang , Alexei Bolshakov
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Mossman Kumar & Tyler PC
- Main IPC: G01V1/00
- IPC: G01V1/00
Abstract:
Passive suppression of casing signals is used to improve the ability to measure formation velocities. Passive suppression includes the use of a magnet slidably coupled to the casing.
Public/Granted literature
- US20100097887A1 Active Noise Cancellation Through the Use of Magnetic Coupling Public/Granted day:2010-04-22
Information query
