Wired Mud Motor Components, Methods of Fabricating the Same, and Downhole Motors Incorporating the Same

摘要

A method for manufacturing a system for drilling includes receiving a drive shaft for transmitting a torque to a downhole tool and forming a hollow central passage in a tubular wall of the drive shaft extending along a longitudinal axis L. The hollow central passage allows a flow of a drilling fluid through a bearing section of the system. The method further includes disposing an elongated flow diverter in the tubular wall of the drive shaft. The elongated flow diverter has a body that includes axially-spaced apertures distributed along the longitudinal axis L of the drive shaft and the hollow central passage. The distribution of the apertures along the longitudinal axis L reduce the impingement of the drilling fluid while diverting the flow of the drilling fluid from an upstream annulus section of the system to the hollow central passage.

主权项

1. A method for manufacturing a system for drilling, the method comprising:
receiving a drive shaft for transmitting a torque to a downhole tool; forming a hollow central passage in a tubular wall of the drive shaft extending along a longitudinal axis L thereof, the hollow central passage allowing a flow of a drilling fluid through a bearing section of the system; and disposing an elongated flow diverter in the tubular wall of the drive shaft, the elongated flow diverter having a body comprising a plurality of axially-spaced apertures distributed along the longitudinal axis L of the drive shaft and the hollow central passage, the distribution of the plurality of apertures along the longitudinal axis L reducing the impingement of the drilling fluid while for diverting the flow of the drilling fluid from an annulus section of the system to the hollow central.