公开(公告)号：US20190264511A1

公开(公告)日：2019-08-29

申请号：US16410135

申请日：2019-05-13

申请人： Smith International, Inc.

发明人： Chen Chen ,  Huimin Song ,  Liang Zhao ,  Youhe Zhang ,  Michael G. Azar ,  Xiaoge Gan ,  Madapusi K. Keshavan ,  Zhijun Lin ,  Bala Durairajan ,  Michael L. Stewart

IPC分类号： E21B10/567 ,  E21B10/573

摘要： A cutting element may include a substrate, an upper surface of the substrate including a crest, the crest transitioning into a depressed region, and an ultrahard layer on the upper surface, thereby forming a non-planar interface between the ultrahard layer and the substrate. A top surface of the ultrahard layer includes a cutting crest extending along at least a portion of a diameter of the cutting element, the top surface having a portion extending laterally away from the cutting crest having a lesser height than a peak of the cutting crest.

公开(公告)号：US20190112877A1

公开(公告)日：2019-04-18

申请号：US16089401

申请日：2017-03-22

申请人： Smith International, Inc.

发明人： Xiaoge Gan ,  Huimin Song ,  Jason Gregg ,  Sandeep Tammineni

IPC分类号： E21B10/567

摘要： 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.

公开(公告)号：US20180002986A1

公开(公告)日：2018-01-04

申请号：US15630420

申请日：2017-06-22

申请人： Smith International, Inc.

发明人： Youhe Zhang ,  Xiaoge Gan ,  Huimin Song

IPC分类号： E21B10/60 ,  E21B10/43 ,  E21B21/10 ,  E21B10/42

CPC分类号： E21B10/602 ,  E21B10/43 ,  E21B10/50

摘要： A bit includes a bit body having at least one blade coupled to the bit body. The blade has a plurality of cutting elements at a nose region and a shoulder region of the blade. A plurality of fluid outlets are positioned on the blade such that at least 30% of the cutting elements have a fluid outlet within a distance that is two or three times a cutting element diameter away from a cutting face of the cutting element.