Drill bit penetration measurement system and method
OwnerScott Hal Kozin, Joseph C. McGinley +1inventors
InventorsScott Hal Kozin, Joseph C. McGinley, Scott T. Porter
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Abstract
A drill bit penetration measurement system and method for determining a depth of penetration of a rotating drill bit in a bore. A first sensor outputs a first signal representative of a displacement of the leading edge of the drill bit in the bore. A second sensor outputs a second signal representative of a force applied to the leading edge of the drill bit. A processor outputs a third signal representative of the depth of penetration of the leading edge of the drill bit when the leading edge of the drill bit passes from a first medium having a first density to a second medium having a second density. The third signal is based on the first and second signals.
Claims16
A drill bit penetration measurement system for determining, with respect to a reference point, a depth of penetration of a leading edge of a rotating drill bit in a bore when the leading edge of the drill bit passes from a first medium to a second medium, the first medium contiguous with the second medium, the first medium having a first density, the second medium having a second density, the system comprising:
- a first sensor outputting a first signal representative of a displacement, with respect to the reference point, of the leading edge of the drill bit in the bore;
- a second sensor outputting a second signal representative of a force applied to the leading edge of the drill bit;
- a processor in electrical communication with the first and second sensors, the processor configured in a first mode to output a third signal representative of the depth of penetration of the leading edge of the drill bit when the leading edge of the drill bit passes from the first medium to the second medium, the third signal based on the first and second signals.
A drill bit penetration measurement system for determining, with respect to a reference point, a depth of penetration of a leading edge of a rotating drill bit in a bore when the leading edge of the drill bit passes from a first medium to a second medium, the first medium having a first density, the second medium having a second density, the drill bit being rotatably driven by a drive within a drill housing, the system comprising:
- a drill bit displacement measurement assembly connected to the drill housing, the displacement measurement assembly having a first sensor outputting a first signal representative of a displacement of the leading edge of the drill bit in the bore;
- a drill bit load measurement assembly comprising:
- a housing having an axis of rotation, the housing removably connected to the drive for rotation thereby;
- a thrust assembly about which the housing is rotatable;
- a drill chuck connected to the housing for rotation therewith and to the thrust assembly for rotation with respect thereto, the drill chuck movable in translation along the axis of rotation of the housing;
- and
- a second sensor connected to the thrust assembly, the second sensor outputting a second signal representative of a force applied to the drill bit;
- and
- a controller assembly in electrical communication with the first sensor and the second sensor, the controller assembly having a processor configured in a first mode to output a third signal representative of the depth of penetration of the leading edge of the drill bit when the leading edge of the drill bit passes from the first medium to the second medium, the third signal based on the first and second signals.
A method for determining, with respect to a reference point, a depth of penetration of a leading edge of a rotating drill bit in a bore when the leading edge of the drill bit transitions from a first medium to a second medium, the first medium adjacent the second medium, the first medium having a first density, the second medium having a second density, the method comprising:
- establishing an initial position of the leading edge of the drill bit with respect to the reference point;
- outputting a first signal representing the depth of penetration of the leading edge of the rotating drill bit in the bore;
- outputting a second signal representing a force applied to the leading edge of the drill bit;
- outputting a third signal representative of the depth of penetration of the leading edge of the drill bit when the leading edge of the drill bit passes from the first medium to the second medium, the third signal based on the first and second signals.
Dependencies are inferred from the claim text.