CUTTING MACHINE FOR USE IN REMOVING DAMAGED OILFIELD RIGS AND EQUIPMENT LOCATED IN OFFSHORE WATERS, AND METHOD OF USING SAME

摘要

An apparatus for cutting off metal piles, casing, conductor pipe and other metal tubulars, uses a metal frame and a metal blade linearly moveable within the frame, the blade being hydraulically and/or pneumatically driven to puncture and then slice and split through the metal being cut off, the cutting surface of the blade having a removable, centralized puncture point located essentially at the projected intersection between two concave cutting surfaces.