METHOD AND APPARATUS FOR CLEARING A WELL BORE

摘要

Methods and apparatuses are provided for clearing a wellbore using a means for milling and a means for suctioning within a wellbore. Obstructions such as ball frac seats, bridge plugs, or formation material can be milled within a wellbore. As a result, larger, unrestricted, diameters can be obtained within the liner/wellbore. The cleared wellbore can allow for various remedial tools to be run into the liner/wellbore. In addition, the milled particles can be suctioned/vacuumed up and can be pumped/pushed to surface in an underbalanced fashion. In some embodiments, this can be achieved by incorporating a bottom-hole pump or a venturi component into the bottomhole assembly. The system can be deployed using a spoolable single or multi-conduit coiled tubing system and can be configured as a well intervention or work-over technology. In some embodiments, the clearing equipment can be temporary or mobile.

主权项

1. An apparatus for clearing a material from within a wellbore, comprising:
a means for milling the material within the wellbore; and a means for suctioning the milled material out from the wellbore, the means for suctioning operatively attached to the means for milling; wherein the material can be cleared from within the wellbore.