[12] Patent
[11] Patent No.:GC0007496  
[45] Date of Publishing the Grant of the Patent: 30/Apr /2018                48/2018  
Number of the Decision to Grant the Patent:2018/125342
Date of the Decision to Grant the Patent:03/Apr/2018

[21] Application No.:GC 2014-27464

[22] Filing Date:30/6/2014

[30] Priority:

[33] State [32] Priority date [31] Priority No.

[72] Inventor: LAJESIC, Borisa

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

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




Int. Cl.: E21B 15/04, 19/24, 7/06 (2006.01)

[56] Cited Documents:

-US 5526880 A (JORDAN, JR., HENRY J. et al.) 18 June 1996
-US 20120305266 A1 (STEELE, DAVID J. et al.) 6 December 2012
-US 6089320 A (LAGRANGE, TIMOTHY EDWARD) 18 July 2000
-US 3866628 A (WEBER, RONALD A. et al.) 18 February 1975
-US 6311776 B1 (PRINGLE, RONALD E. et al.) 6 November 2001
Examiner: Eng. Mohammed A. AlShamrani

[57] Abstract: A wellbore system is disclosed that includes an upper deflector arranged within a main bore and defining first and second channels that extend longitudinally therethrough, a lower deflector arranged within the main bore and spaced from the upper deflector by a predetermined distance, the lower deflector defining a first conduit that communicates with a lower portion of the main bore and a second conduit that communicates with a lateral bore, and a bullnose assembly including a body, a bullnose tip arranged at a distal end of the body, and a sleeve member arranged about the body, where the sleeve member or the bullnose tip is axially movable to vary a length of the bullnose tip, wherein the upper and lower deflectors are configured to direct the bullnose assembly into the lateral bore or the lower portion of the main bore based on the length of the bullnose tip.
No. of claims: 21     No. of figures: 11


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