Method and apparatus for locating and re-entering one or...

Details Method and apparatus for locating and re-entering one or... Method and apparatus for locating and re-entering one or...

E - Fixed Constructions

21

B

E21B 7/08 (2006.01) E21B 29/06 (2006.01) E21B 33/10 (2006.01) E21B 43/14 (2006.01)

Patent

CA 2497631

In accordance with the present invention, a plurality of methods and devices are provided for solving important and serious problems posed by lateral (and especially multilateral) completion (70) including method and devices (94) for re-entering selected lateral wells (70) to perform completions work, additional drilling, or remedial and stimulation work. Various methods and devices are provided for assisting in the location and re-entry of lateral wells (70). Such re-entry devices include permanent or retrievable deflector (e.g. whipstock) devices (94). Preferably, the re-entry methods of this invention permit the bore size of the lateral wells (70) to be the same or substantially the same bore size as the vertical wells (66).

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