A method for cutting off a tubular in a subterranean well removing the cut-off section of the tubular from the well
A method for cutting off a tubular in a subterranean well and removing a cut-off section of said tubular from the subterranean well, wherein the method comprises: - providing a downhole tool assembly (10) on a work string (20) wherein a through-bore (19) extends through said work string (20) and sai...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A method for cutting off a tubular in a subterranean well and removing a cut-off section of said tubular from the subterranean well, wherein the method comprises: - providing a downhole tool assembly (10) on a work string (20) wherein a through-bore (19) extends through said work string (20) and said tool assembly (10), the tool assembly (10) comprising, from top to bottom: - a pull tool (14), - an anchor tool (11) for anchoring the pull tool (14) to a first tubular (1), - a space-out drill pipe string (21), - a spear tool (12) for anchoring the pull tool (14) to a second tubular (2), at least partially surrounded by the first tubular (1), - a packer tool (15), - a valve tool (16) for controlling fluid communication in the through-bore (19), wherein a first fluid conduit (161) extends between the valve tool (16) and the packer tool (15), - a cutter tool (13) for cutting said second tubular (2), - running the tool string into the desired portion of the second casing, cutting, pulling and releasing the anchor tool (11) - pulling the entire tool assembly (10) with the cut-off section of the second tubular (2) out of the well. |
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