Invention Grant
- Patent Title: Optical casing collar locator systems and methods
- Patent Title (中): 光学套管定位系统及方法
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Application No.: US13432206Application Date: 2012-03-28
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Publication No.: US09127532B2Publication Date: 2015-09-08
- Inventor: John L. Maida , Etienne M. Samson , David P. Sharp
- Applicant: John L. Maida , Etienne M. Samson , David P. Sharp
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Agency: Krueger Iselin LLP
- Main IPC: E21B47/092
- IPC: E21B47/092 ; E21B47/09 ; E21B47/12

Abstract:
Fiber optic enabled casing collar locator systems and methods include a wireline sonde or a coil tubing sonde apparatus configured to be conveyed through a casing string by a fiber optic cable. The sonde includes at least one permanent magnet producing a magnetic field that changes in response to passing a collar in the casing string, a coil that receives at least a portion of the magnetic field and provides an electrical signal in response to the changes in the magnetic field, and a light source that responds to the electrical signal to communicate light along an optical fiber to indicate passing collars.
Public/Granted literature
- US20130056202A1 Optical Casing Collar Locator Systems and Methods Public/Granted day:2013-03-07
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