Method of construction of multilateral wells and bilateral WEDGE FOR ITS IMPLEMENTATION

摘要

A method of building multilateral well comprising drilling and fastening the main wellbore casing latching double wedge drilling opposing curved branches to a depth with fastening them with additional casing strings, wherein the main bore is drilled with fastening the casing to the design depth, producing extension of the base cutting the trunk casing slot to obtain the upper and lower portions of the main trunk, whereupon installation DUPLEX onnego latching wedge into the bottom of the main wellbore and after drilling and mounting of curved branches recovered sided wedge.