[12] Patent
[11] Patent No.:GC0013772  
[45] Date of Publishing the Grant of the Patent: 9/Sep /2025                102/2025  		 Number of the Decision to Grant the Patent:2025/203298
Date of the Decision to Grant the Patent:05/Aug/2025

[21] Application No.:GC 2018-39240

[22] Filing Date:27/3/2018

[30] Priority:

[33] State [32] Priority date [31] Priority No.
PCT
29/4/2017
 PCT/US2017/030302

[72] Inventors:1- John Hudson HALES،2- Brett Wade WILLIAMS،3- Joseph George BLAKEY،4- Peter C. Jackson

[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 23/06, 33/12, 41/00 (2006.01)

[56] Cited Documents:

-US 6079493 A (LONGBOTTOM et al.) 27 June 2000
-WO 9809054 A1 (BAKER HUGHES INCORPORATED) 05 March 1998
-US 20030085037 A1 (ROANE et al.) 08 May 2003
-US 5322127 A (MCNAIR et al.) 21 June 1994
-EP 1428974 B1 (HALLIBURTON ENERGY SERVICES, INC.) 23 January 2008  
Examiner: Eng. Imad A. AlAhaidib

[54] IMPROVED METHOD AND DEVICE FOR MULTILATERAL SEALED JUNCTIONS
[57] Abstract: This disclosure provides a dissolvable sealing joint system that can be used in an improved method of sealing a multilateral well junction. The sealing joint system is comprised of a dissolvable junction subassembly that can be easily removed after a sealing operation is conducted. A tapered end of the dissolvable junction subassembly is inserted in a liner of a secondary wellbore, and a seal located about the tapered end is sealed against the top of the liner and a no-go shoulder of dissolvable junction subassembly. Once a seal is established, an isolation fluid is pumped into the junction area via a fluid port located in the dissolvable junction subassembly. A method of isolating a wellbore junction is also presented.
No. of claims: 10     No. of figures: 9


 

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