Anti Stick-Slip Tool (AST)

Although quite similar to a shock absorber in appearance, Tomax’s patented AST tool is something quite different: It is a downhole regulator with capabilities for balancing the loading of the cutters. The AST uses robust mechanics to continuously control the axial force or weight on the bit. In this way, not only does the tool prevent the cutters from sticking, but it also provides an optimal balance between cut and losses to friction. No downhole tool for efficiency improvement has been analyzed and scrutinized by science to the same extent as the AST. Experts from academia in the fields of control systems and nonlinear dynamics now concludes the solution improves efficiency between 30 and 60% with corresponding, positive effects on speed, footage and vibrations. These numbers are backed up with empiric data from 5000 wells and the result is clear on how autonomous regulators like the AST is the way forward in deep drilling.