Patents Assigned to Peabody Energy Australia
  • MULTI PURPOSE DRILLING SYSTEM AND METHOD
    Publication number: 20170044887
    Abstract: A method of forming a multi purpose drilling for degassing a coal seam that is to mined, the method including the steps of drilling a primary borehole from a surface into a zone above the coal seam, such that at least a portion of the primary borehole extends substantially parallel to the coal seam, and drilling at least one secondary borehole, wherein the least one secondary borehole extends from the primary borehole into the coal seam.
    Type: Application
    Filed: March 24, 2015
    Publication date: February 16, 2017
    Applicant: Peabody Energy Australia
    Inventor: JAN BENJAMIN PIETER COETZEE