CPC Subgroup
E21B 29/10 Reconditioning of well casings, e.g. straightening
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 > Reconditioning of well casings, e.g. straightening