DRILL STRING SECTIONS WITH INTERCHANGEABLE COUPLINGS
摘要
A drill string section includes one or two tool joints that are removable from a body. Tool joints with different thread configurations may be interchangeably used with the same body. The tool joints have a compact construction that can facilitate making the drill string section short. The body overlaps with threads of one or both of the tool joints. The drill string section has non-exclusive application between a mud motor and a drill bit.
申请公布号
WO2015168804(A1)
申请公布日期
2015.11.12
申请号
WO2015CA50415
申请日期
2015.05.08
申请人
EVOLUTION ENGINEERING INC.
发明人
DERKACZ, PATRICK R.;LOGAN, AARON W.;LOGAN, JUSTIN C.