SUPPORT DEVICE OF EQUIPMENT INSIDE A WELL, A PROCESS FOR FIXING IT AND A PROCESS FOR PLACING SUCH EQUIPMENT

摘要

The present invention relates especially to a support device of tubular equipment such as a liner inside a well, that is, an unmachined drilled hole, or a casing present in this well, characterised in that it comprises two elements attached to each other, specifically: a) a cylindrical sleeve (2), made of ductile metal, of external diameter slightly less than the inner diameter of the well or of the casing; b) a set of tabs (3) made of hard metal, spaced apart from each other and integral with the cylindrical envelope of this sleeve, by extending it downwards according to generatrices of the cylindrical sleeve; the outer wall of these tabs (3) being fitted with a series of notched formations (30), such as teeth, whereas their inner wall (31) has a conical form, the apex of which is turned down.