Tubular cutting with a sealed annular space and fluid flow for cuttings removal

摘要

A spear and tubular cutter combination for cutting a tubular from a surface location, comprising: a mandrel rotatably mounted in an outer assembly, said mandrel supporting a tubular cutter and having a flow passage therethrough; an anchor mounted to said outer assembly and configured to allow said outer assembly to enter the tubular to cut the tubular with a tensile force on the tubular; an annular seal on said outer assembly selectively engaging the tubular when said anchor is moved against the tubular to close off against the tubular when said cutter cuts the tubular, said seal, when engaging the tubular, is disposed on said outer assembly in a manner that allows flow exiting said flow passage of said cutter to selectively reach the surface; said outer assembly further comprises a drag assembly to support at least a portion of said outer assembly as said mandrel is moved relative to said outer assembly; said outer assembly comprises a cone to actuate said anchor when said cone is advanced with respect to said anchor; said anchor comprises at least one slip; said outer assembly comprises a lock assembly to prevent relative axial movement of said cone with respect to said slip until selectively released; said mandrel selectively engageable to said outer assembly for tandem rotation to defeat said lock, whereupon application of a tensile force to said mandrel said cone moves under said slip to engage said slip to the tubular.