公开(公告)号：WO2017172431A2

公开(公告)日：2017-10-05

申请号：PCT/US2017/023509

申请日：2017-03-22

Applicant: SMITH INTERNATIONAL, INC.

Inventor： XIAOGE, Gan ,  SONG, Huimin ,  GREGG, Jason ,  TAMMINEMI, Sandeep

IPC: E21B10/42 ,  E21B10/54

CPC classification number: E21B10/5673 ,  E21B10/42 ,  E21B10/54 ,  E21B10/55

Abstract: A cutting element may include a substrate; and an ultrahard layer on the substrate, the ultrahard layer including a non-planar working surface that is surrounded by a peripheral edge having a varying height around a circumference of the cutting element, the working surface also having: a plurality of cutting crests extending from an elevated portion of the peripheral edge across at least a portion of the working surface; at least one valley between the plurality of cutting crests; and a canted surface extending laterally from each of the outer plurality of cutting crests towards a depressed portion of the peripheral edge, a height between the depressed portion and the elevated portion being greater than a height between the elevated portion and the valley.

Abstract translation: 切割元件可以包括基板; 以及在所述基底上的超硬层，所述超硬层包括由周围边缘围绕的非平面工作表面，所述周边具有围绕所述切割元件的圆周的变化的高度，所述工作表面还具有：多个切割脊，从 横跨工作表面的至少一部分的外围边缘的升高部分; 所述多个切割脊之间的至少一个谷; 以及倾斜表面，所述倾斜表面从所述外部多个切割峰中的每一个朝向所述外围边缘的凹陷部横向延伸，所述凹陷部与所述升高部之间的高度大于所述升高部与所述谷之间的高度。 >