Methods and associated apparatus for drilling and completing...

Details Methods and associated apparatus for drilling and completing... Methods and associated apparatus for drilling and completing...

E - Fixed Constructions

21

B

E21B 33/138 (2006.01) E21B 7/06 (2006.01) E21B 23/12 (2006.01) E21B 29/06 (2006.01)

Patent

CA 2341119

Apparatus and methods are provided which enhance drilling and completion of wellbore intersections. In a described embodiment, a cutting tool diverter is used to drill a branch wellbore extending outwardly from a main wellbore. The diverter is provided with an outer easily millable portion which reduces the amount of time needed to retrieve the diverter. In another embodiment, a substance is injected into a formation surrounding the intersection of the main and branch wellbores, to thereby facilitate sealing of the intersection.

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