BLADE STABILISER TOOL FOR DRILL STRING

摘要

A drilling string stabiliser tool (200) comprises a cylindrical body (20) and a plurality of stabiliser blades (100) mounted on the outer surface of the cylindrical body. The stabiliser blades have an elongated shape and a monolithic structure with an upper stabilizing part and a lower mounting part. Between each two adjacent blades (100) there can optionally be a hydrodynamic flute (21) for improving the flow of liquid and cuttings during drilling and tripping.