摘要 |
<p>I UUtL I29M0 A downhole cutting tool for use in a well is provided. The tool includes: a body having a first end for connection with a rotating component of a drill string; and a cutting end for rotation in unison with the body, the cutting end comprising a first cutting element and a second cutting element, each of the first and second cutting elements comprising a longitudinal axis and a cutting profile disposed asymmetrically relative to the longitudinal axis along a cutting face of the first and second cutting elements, the asymmetrically disposed cutting profile providing a first cutting surface portion disposed between a first lateral edge of the cutting profile and the first lateral side surface and a second cutting surface portion disposed between a second lateral edge of the cutting profile and the second lateral side surface, wherein the first cutting surface portion comprises a first distance between the first lateral edge and the first lateral side surface that is at least twice as long as a second distance between the second lateral edge and the second lateral side surface, and wherein the cutting face of the first cutting element is arranged facing the cutting face of the second cutting element, the first cutting surface portion of the first cutting element being disposed opposite the cutting profile of the second cutting element and the first cutting surface portion of the second cutting element being disposed opposite the cutting profile of the first cutting element.</p> |