[12] Patent
[11] Patent No.:GC0013759  
[45] Date of Publishing the Grant of the Patent: 9/Sep /2025                102/2025  		 Number of the Decision to Grant the Patent:2025/203285
Date of the Decision to Grant the Patent:04/Aug/2025

[21] Application No.:GC 2018-36263

[22] Filing Date:21/10/2018

[30] Priority:

[33] State [32] Priority date [31] Priority No.
PCT
26/12/2017
 PCT/US2017/068420

[72] Inventors:1- Trond HagenŲŒ2- Christopher Milton

[73] Owner: Halliburton Energy Services, Inc., 3000 N. Sam Houston Parkway E., , Texas, USA

[74] Agent: SMAS Intellectual Property WLL

  

 

   

[51]IPC:
Int. Cl.: E21B17/00; E21B47/12 (2006.01)

[56] Cited Documents:

-US 4806928 A (VENERUSO, ANTHONY F.) 21 February 1989
-US 2004-0238166 A1 (SALAMITOU et al.) 02 December 2004
-WO 2016-171679 A1(HALLIBURTON ENERGY SERVICES, INC.) 27 October 2016
-WO 99-36802 A1 (PANEX CORPORATION et al.) 22 July 1999
-US 2012-0017673 A1 (GODAGER, OIVIND) 26 January 2012  
Examiner: Eng. Ahmed Saleem AlHinai

[54] ALTERNATING POLARITY OF CASING-SIDE ANTENNAS IN A WELLBORE
[57] Abstract: An antenna system can include casing-side antennas and a full wave rectifier. The casing-side antennas can be coupled to a casing string that is positioned in a wellbore for communicatively coupling to a tubing-side antenna positioned in the wellbore. Each of the casing-side antennas can include a conductive wire positioned to carry current that can be induced on the conductive wire in response to an electromagnetic field from the tubing-side antenna. A direction, relative to a common antenna junction point, of the current on the conductive wire can be opposite to the direction, relative to the common antenna junction point, in which an adjacent casing-side antenna is positioned to carry current induced in response to the electromagnetic field. The full-wave rectifier can be conductively coupled to the casing-side antennas for converting alternating current that can be generated on the casing-side antennas into direct current.
No. of claims: 15     No. of figures: 8


 

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