STABILIZATION SYSTEM OF DRILL STRING OF SURFACE PLATFORM

摘要

A system for stabilization of a drill string of a surface platform includes dynamical suppressors of vibrations (DSV) installed on the drill string, which is fixed by elastic cable suspensions to the platform. At least one DSV is made of pendulum type. Each of the DSV comprises the lower and upper masses installed on a rod with possibility of control of distance from the point of rotation. At that the lower mass includes a container with elastic inserts, and the units for fixation of the rod are equipped with an elastic shell.