Advanced controlled flow excavation system designs

Abstract

A controlled flow excavation system for subsea operations in which there are provided multiple individual excavating tools (11,12) and in which the outputs of at least two of the tools are arranged to operate as a linked team, in use, each of the tools of such a team is electrically driven. The tools of a linked team (11,12) can have their relative angle or position altered by an operator of the team whilst remaining, in all relative operational positions, in substantially the same plane as one another by the provision of means enabling the relative angle or position of the tools in the team to be altered so as to occupy, in use, a plane or planes other than the plane first referred to.

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