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1. (WO2016057014) METHOD FOR HYDRAULIC COMMUNICATION WITH TARGET WELL FROM RELIEF WELL

Pub. No.:    WO/2016/057014    International Application No.:    PCT/US2014/059325
Publication Date: Fri Apr 15 01:59:59 CEST 2016 International Filing Date: Tue Oct 07 01:59:59 CEST 2014
IPC: E21B 7/06
E21B 34/00
E21B 47/02
Applicants: HALLIBURTON ENERGY SERVICES, INC.
Inventors: HESS, Joe E.
CUTHBERT, Andy J.
Title: METHOD FOR HYDRAULIC COMMUNICATION WITH TARGET WELL FROM RELIEF WELL
Abstract:
A system and method for establishing hydraulic communication between a relief well and a target well, wherein the relief well intersects with the target well at an intersection point and the relief well includes a distal portion of the relief well that is deviated and intersects the first wellbore from below the intersection point. A directional drilling system and a magnetic ranging system may be used to guide the relief well from a kick-off point to the intersection point. The deviation angle between the two intersecting wells is at least 45 degrees, but may be approximately 90 degrees or obtuse. A deviated portion of the relief well includes a J-shaped or U-shaped trajectory, thus allowing the wellhead of the relief well to be located at a site removed from the wellhead of the target well, but still intersect the target well at a shallow true vertical depth.