IMPROVEMENTS ON ROLLING CUTTER STABILITY
    1.
    发明申请

    公开(公告)号:US20180283106A1

    公开(公告)日:2018-10-04

    申请号:US15764002

    申请日:2016-09-21

    IPC分类号: E21B10/56 E21B10/42

    摘要: A cutting element includes a cutting end extending a depth from a cutting face to an interface surface opposite from the cutting face, and a spindle, the spindle axially separated from the cutting end by a transition region. The spindle has a spindle diameter measured between a spindle side surface, which is less than a cutting end diameter. A guide length, measured from a point of transition to the transition region to a retention feature, is longer than 75% of a total length of the spindle.

    MULTIPLE RIDGE CUTTING ELEMENT
    2.
    发明申请

    公开(公告)号:US20190112877A1

    公开(公告)日:2019-04-18

    申请号:US16089401

    申请日:2017-03-22

    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.

    MULTIPLE RIDGE CUTTING ELEMENT
    3.
    发明申请

    公开(公告)号:US20210156202A1

    公开(公告)日:2021-05-27

    申请号:US17164622

    申请日:2021-02-01

    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.

    Multiple ridge cutting element
    4.
    发明授权

    公开(公告)号:US10907415B2

    公开(公告)日:2021-02-02

    申请号:US16089401

    申请日:2017-03-22

    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.

    Rolling cutter stability
    5.
    发明授权

    公开(公告)号:US10774596B2

    公开(公告)日:2020-09-15

    申请号:US15764002

    申请日:2016-09-21

    IPC分类号: E21B10/56 E21B10/62 E21B10/42

    摘要: A cutting element includes a cutting end extending a depth from a cutting face to an interface surface opposite from the cutting face, and a spindle, the spindle axially separated from the cutting end by a transition region. The spindle has a spindle diameter measured between a spindle side surface, which is less than a cutting end diameter. A guide length, measured from a point of transition to the transition region to a retention feature, is longer than 75% of a total length of the spindle.