method for intercepting a first well bore formed in a formation by a second well bore; and, well intervention intervention drilling system.

摘要

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 deflected and intercepts the first wellbore below the intersection point. A directional drilling system and a magnetic range system can be used to guide the relief well from a deflection start point to the intersection point. The angle of deviation between the two intersecting wells is at least 45 degrees, but can be approximately 90 degrees or obtuse. a deflected portion of the relief well includes a j-shaped or u-shaped path thus allowing the relief wellhead to be located at a location removed from the target wellhead but still intersects the target pit at a true true shallow depth.