[12] Patent
[11] Patent No.:GC0009292  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/141105
Date of the Decision to Grant the Patent:06/Dec/2018

[21] Application No.:GC 2014-28434

[22] Filing Date:2/12/2014

[30] Priority:

[33] State [32] Priority date [31] Priority No.
PCT
5/12/2013
PCT/US2013/073425

[72] Inventors:1- WILSON, GLENN A.،2- DONDERICI, BURKAY

[73] Owner: HALLIBURTON ENERGY SERVICES, INC., 10200 Bellaire Boulevard, Texas 77072, Houston, USA

[74] Agent: Abu-Gazaleh Intellectual Property L.L.C

  

 

  

[51]IPC:
E21B 47/022

[56] Cited Documents:

-US 5,218,301 A (KUCKES ARTHUR F) 08 June 1993
-US 7,440,858 B2 (SIMONS DAVID J. et al) 21 October 2008
 
Examiner: Eng. Imad A. AlAhaidib

[54] DOWNHOLE TRIAXIAL ELECTROMAGNETIC RANGING
[57] Abstract: A ranging system calculates the distance, direction and orientation of a target well through rotationally invariant analysis of triaxial electric and magnetic field measurements from a bottom hole assembly (“BHA”) having electromagnetic sensors. The triaxial electric and magnetic field sensors can be deployed in any downhole device without explicitly needing to process or retrieve rotational information about the downhole BHA or wireline device. Also, the distance, direction and orientation of the target well can be retrieved from a single measurement position.
No. of claims: 30     No. of figures: 3


 

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