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    Mine drilling system and related method
    61.
    发明授权
    Mine drilling system and related method 有权

    公开(公告)号：US11002075B1

    公开(公告)日：2021-05-11

    申请号：US16527505

    申请日：2019-07-31

    申请人： J.H. FLETCHER & CO.

    发明人： Sean Joseph McQuerrey ,  Adam Teator

    IPC分类号： E21B7/02 ,  E21B47/09 ,  E21C37/00 ,  E21D20/00

    摘要： A system for drilling one or more boreholes in a face of a mine passage including markers attached to the mine passage. A drilling machine includes one or more drills for drilling the one or more boreholes, and a first sensor for sensing a position of the markers. Based on the sensed position of the at least two markers, a computer determines: (i) a survey vector generally parallel to the line; and (ii) a face plane generally orthogonal to the survey vector and coincident with a location where the survey vector intersects the face. A controller may be provided for automatically controlling the feeding of the drill(s) based on the location of the face plane and the back plane to form the boreholes in the face. A back plane may also be determined to ensure that all boreholes are drilled to a corresponding depth. Related methods are also disclosed.

    Projectile drilling system
    65.
    发明授权
    Projectile drilling system 有权

    公开(公告)号：US10557308B2

    公开(公告)日：2020-02-11

    申请号：US15340753

    申请日：2016-11-01

    申请人： HYPERSCIENCES, INC.

    发明人： Mark C. Russell

    IPC分类号： E21B7/16 ,  E21B7/18 ,  E21B7/00 ,  F41A1/04 ,  E21C37/00 ,  F41A1/02 ,  F42B12/06 ,  F42B12/74 ,  F42D3/04 ,  E21B33/14 ,  E21B17/18

    摘要： A hole in geologic material, such as a wellbore, may be extended by impacting the working face of the hole with high velocity projectiles. A tube may be placed within the hole, and the lower end of the tube may be sealed to prevent ingress of material from the hole into the tube. A projectile may be accelerated through the tube, such as by igniting a combustible gas mixture to impart a force to the projectile. The impact of the projectile may extend the hole. In some cases, accelerated projectiles may be used in conjunction with a drill bit to drill a wellbore or other type of hole.

    System and method for controlling a drilling machine
    66.
    发明授权
    System and method for controlling a drilling machine 有权

    公开(公告)号：US10428638B2

    公开(公告)日：2019-10-01

    申请号：US15465798

    申请日：2017-03-22

    申请人： Atlas Copco Drilling Solutions LLC

    发明人： Peter D. Miller

    IPC分类号： E21B44/00 ,  E21B44/04 ,  E21D9/00 ,  E21C37/00 ,  E21B7/02

    摘要： A system and method for drilling a borehole using a drilling rig having a rotary drill bit includes monitoring one or more drilling parameters; determining whether the one or more monitored drilling parameters are within predetermined specifications for one or more of the monitored drill parameters; and, executing an exception control procedure for control of a drilling parameter. The exception control procedure receives an input sensor value associated with a drilling parameter and applies feedback control to establish a scaled error value that is used to compute a setting value for the drilling parameter. The drilling parameters controlled may include the rotation speed of the drill bit, the feed rate of the drill bit, the weight-on-bit, or rotation torque during retraction of the drill bit. A computer-readable database of specifications of drill bits may be provided as a part of the system.