MULTI-LATERAL SELECTIVE RE-ENTRY TOOL

摘要

In a wellbore having at least one lateral or branch wellbore (16) extending therefrom, a selective re-entry tool (120) is presented for running on a completion string to enable an operator to select the branch desired so as to enter such branch with a coil tubing workstring. In a preferred embodiment, the selective re-entry tool (460) includes an outer stationary sub (468) and an inner longitudinally shiftable sleeve (482). Preferably, this sleeve (482) is connected to a rectangular box (466) which is spaced from an exit sub (470) having a pair of exit openings (490, 492). A flapper (462) is pivotally connected at the intersection between the exit openings to the box by a pair of rails (464) or pivot pins (478). Laterally extending ears (480) on opposed sides of the flapper are received in a respective pair of elongated ramped guide slots (488) formed on opposed lateral surfaces of the box.