[12] Patent
[11] Patent No.:GC0009348  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/141401
Date of the Decision to Grant the Patent:11/Dec/2018

[21] Application No.:GC 2014-28148

[22] Filing Date:21/10/2014

[30] Priority:

[33] State [32] Priority date [31] Priority No.
PCT
30/12/2013
PCT/US2013/078249

[72] Inventors:1- GOODMAN, George David،2- DONDERICI, Burkay،3- GUNER, Baris

[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 47/18, E21B 43/16

[56] Cited Documents:

-US 6250848 Bl (MORlDIS et al.) 26 June 2001
- US 2008-0290876 Al (AMEEN, MOHAMMED S.) 27 November 2008
-WO 2013-012967 Al (SCHLUMBERGER CANADA LIMITED et al.) 24 January 2013
- US 4802534 A (LARSON et al.) 07 February 1989
- US 6817415 B2 (ORBAN et al.) 16 November 2004
 
Examiner: Eng. Ahmed Saleem AlHinai

[54] FERROFLUID TOOL FOR ENHANCING MAGNETIC FIELDS IN A WELLBORE
[57] Abstract: A tool for enhancing or directing magnetic fields using ferrofluids in a downhole system is provided. The downhole system can include a tool body, a source of ferrofluid, and a positioning magnet. The positioning magnet can magnetically couple with the ferrofluid from the source for enhancing or directing a magnetic field through at least a portion of an annulus between the tool body and a wellbore formation.
No. of claims: 21     No. of figures: 10


 

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