Intergrated transmitter surveying while boring entrenching powering device for the continuation of a guided bore hole
AssigneeHunting Performance, Inc.
InventorsParis E. Blair, Joseph L. Ficken, Daniel J. Richards
Life of this patent
Estimating the term…
Abstract
A bottom hole assembly for horizontal directional drilling that improves the accuracy of surveying while boring by enabling the progress of the bore to be monitored and tracked with the aid of a sonde. In one embodiment the sonde is received in the wall of a housing area of a mud motor surrounding the bearing mandrel, in another embodiment the sonde is carried in the wall of a collar surrounding the bearing mandrel housing, and in an additional embodiment the sonde is carried in an adapter between the bearing mandrel and the bit.
Claims8
A bottom hole assembly for horizontal drilling comprising a mud motor having a bit mounted on its forward end, the mud motor including axially extending bearing, transmission and power sections, said sections including a bent housing, an axially extending bearing mandrel rotationally and axially supported in the bearing section, the bearing section and the power section having respective axes at a small angle relative to one another, the bit being carried by the bearing mandrel, the transmission section transmitting torque from the power section to the bearing mandrel to rotationally drive the bit, and a sonde for electromagnetic signalling of its location and other data relating to its orientation to the surface, the sonde being located on the bottom hole assembly between the bit and the power section.
A mud motor for horizontal directional drilling comprising a bearing section, a transmission section, and a power section, the bearing section including a shaft for driving a bit and bearing structure for radially and axially supporting the shaft, the power section including a rotor operated by fluid power of mud received from a drill string, the transmission section transferring power from the rotor of the power section to the shaft, the bearing, transmission and power sections having respective surrounding housing areas, and a sonde carried on a housing area forward of the power section.
Dependencies are inferred from the claim text.