E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/08 (2006.01) E21B 7/06 (2006.01) E21B 17/00 (2006.01) E21B 23/00 (2006.01) E21B 29/06 (2006.01) E21B 41/00 (2006.01)
Patent
CA 2184322
An assembly for drilling multiple laterals (26) from a borehole and into a formation includes a whipstock assembly having a radially movable lug (82). An elongate tubular secured within the borehole has one or more non-ferrous portions (30) and a ferrous portion (52) adjacent and below a respective non-ferrous portion. A locator (54) is fixed within each ferrous portion at a desired axial spacing relative to the non-ferrous portion. According to the method of the invention, the whipstock assembly is lowered below the locator (54) and pulled upwardly to rotate the whipstock assembly to a selected azimuth within the tubular. The lug (82) on the whipstock assembly fits within the locator to axially position the whipstock face (97) within the non- ferrous portion of the tubular. A drill bit (96) engages the whipstock face and drills a window through the non-ferrous portion of the tubular and then into the formation.
Braddick Britt O.
Murray Mark J.
Finlayson & Singlehurst
Tiw Corporation
LandOfFree
Multiple lateral hydrocarbon recovery system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multiple lateral hydrocarbon recovery system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple lateral hydrocarbon recovery system and method will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1411873