A rotating bit with cutters used in drilling operations to advance a borehole in the earth. The bit includes column cutters in the bit body in a recessed central area. The column cutters contact a column of borehole material that is formed during operation. The column cutters are oriented to fracture the column, producing larger cuttings or chips, and to exert a force on the column to limit lateral movement of the bit during operation.
申请公布号
WO2015127123(A1)
申请公布日期
2015.08.27
申请号
WO2015US16684
申请日期
2015.02.19
申请人
ULTERRA DRILLING TECHNOLOGIES, L.P.
发明人
MAW, JASON;CHREST, BENJAMIN;MATTHEWS, RYAN;DAMIAN, THOMAS, ALAN;DEEN, CARL, ARON;MURDOCK, ANDRW, DAVID