DIFF Subgroup
E21B 29/08 Cutting or deforming pipes to control fluid flow
Introduced: January 1980
Full Title
Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground > Cutting or deforming pipes to control fluid flow
No child classifications to compare. This is a leaf node in both IPC and CPC.