[12] Patent
[11] Patent No.:GC0013770  
[45] Date of Publishing the Grant of the Patent: 9/Sep /2025                102/2025  		 Number of the Decision to Grant the Patent:2025/203296
Date of the Decision to Grant the Patent:05/Aug/2025

[21] Application No.:GC 2019-36920

[22] Filing Date:27/1/2019

[30] Priority:

[33] State [32] Priority date [31] Priority No.
PCT
5/3/2018
 PCT/US2018/020965

[72] Inventors:1- Anand Prakash،2- Matthew Chase Griffing

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

[74] Agent: SMAS Intellectual Property WLL

  

 

   

[51]IPC:
Int. Cl.: E21B 47/12; H01Q 7/08 (2006.01)

[56] Cited Documents:

-US 20140032116 A1 (BARIS GUNER et al.) 30 January 2014
-JP 2012070164 A (DENSO CORP.) 05 April 2012
-US 6788065 B1 (DEAN HOMAN et al.) 07 September 2004
-US 20170184753 A1 (HALLIBURTON ENERGY SERVICES, INC.) 29 June 2017
-US 20080036672 A1 (HOZUMI UEDA et al.) 14 February 2008

  
Examiner: Eng. Ghassan F. AlBuhairan

[54] CO-LOCATED ANTENNAS
[57] Abstract: An antenna assembly includes a tool mandrel having a tool axis; a first coil antenna including a first plurality of windings wrapped about the tool mandrel, wherein the first coil antenna is arranged in a first orientation and wherein portions of the first plurality of windings are wrapped about the tool mandrel at a first winding angle defined with respect to the tool axis; and a second coil antenna co-located with the first coil antenna and including a second plurality of windings wrapped about the tool mandrel, wherein the second coil antenna is arranged in a second orientation opposite the first orientation, wherein portions of the second plurality of windings are wrapped about the tool mandrel at a second winding angle defined with respect to the tool axis and wherein a difference between a loop area of the first coil antenna and a loop area of the second coil antenna is less than 25%.
No. of claims: 15     No. of figures: 8


 

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