Method and apparatus for collecting drill bit performance data
First Claim
1. A drill bit for drilling a subterranean formation, comprising:
- a bit body bearing at least one cutting element and adapted for coupling to a drillstring;
a chamber formed within the bit body, the chamber configured for maintaining a pressure substantially near a surface atmospheric pressure while drilling the subterranean formation; and
one or more sensors disposed in the chamber and configured for sensing at least one physical parameter.
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Accused Products
Abstract
Drill bits and methods for sampling sensor data associated with the state of a drill bit are disclosed. A drill bit for drilling a subterranean formation comprises a bit body and a shank. The shank further includes a central bore formed through an inside diameter of the shank and configured for receiving a data analysis module. The data analysis module comprises a plurality of sensors, a memory, and a processor. The processor is configured for executing computer instructions to collect the sensor data by sampling the plurality of sensors, analyze the sensor data to develop a severity index, compare the sensor data to at least one adaptive threshold, and modify a data sampling mode responsive to the comparison. A method comprises collecting sensor data by sampling a plurality of physical parameters associated with a drill bit state while in various sampling modes and transitioning between those sampling modes.
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Citations
49 Claims
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1. A drill bit for drilling a subterranean formation, comprising:
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a bit body bearing at least one cutting element and adapted for coupling to a drillstring;
a chamber formed within the bit body, the chamber configured for maintaining a pressure substantially near a surface atmospheric pressure while drilling the subterranean formation; and
one or more sensors disposed in the chamber and configured for sensing at least one physical parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method, comprising:
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collecting sensor data at a sampling frequency by sampling at least one sensor disposed in a drill bit, wherein the at least one sensor is responsive to at least one physical parameter associated with a drill bit state; and
analyzing the sensor data in the drill bit to develop a time encoded parameter stream of the sensor data, wherein the analyzing comprises;
partitioning the sensor data into epochs, each epoch comprising consecutive samples between zero crossings;
determining a duration parameter as a number of samples for each epoch; and
determining a shape parameter as a number of minima or a number of maxima for each epoch. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. An apparatus for drilling a subterranean formation, comprising:
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a drill bit bearing at least one cutting element and adapted for coupling to a drillstring; and
a data analysis module disposed in the drill bit and comprising;
at least one sensor configured for developing sensor data by sensing at least one physical parameter;
a memory; and
a processor operably coupled to the memory and the at least one sensor, the processor configured for executing computer instructions, wherein the computer instructions are configured for;
analyzing information derived from the sensor data in the drill bit to develop a time encoded parameter stream of the information, wherein the analyzing comprises;
partitioning the information into epochs, each epoch comprising consecutive samples between zero crossings;
determining a duration parameter as a number of samples for each epoch; and
determining a shape parameter as a number of minima or a number of maxima for each epoch. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. An apparatus for drilling a subterranean formation, comprising:
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a drill bit bearing at least one cutting element and adapted for coupling to a drillstring; and
a data analysis module disposed in the drill bit and comprising;
at least one sensor configured for developing sensor data by sensing at least one physical parameter;
a memory; and
a processor operably coupled to the memory and the at least one sensor, the processor configured for executing the computer instructions, wherein the computer instructions are configured for;
collecting the sensor data by sampling the at least one sensor; and
determining a remaining battery life estimate. - View Dependent Claims (40, 41)
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42. An apparatus for drilling a subterranean formation, comprising:
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a drill bit bearing at least one cutting element and adapted for coupling to a drillstring; and
a data analysis module disposed in the drill bit and comprising;
at least one sensor configured for developing sensor data by sensing at least one physical parameter;
a memory; and
a processor operably coupled to the memory and the at least one sensor, the processor configured for executing the computer instructions, wherein the computer instructions are configured for;
collecting the sensor data by sampling the at least one sensor; and
determining a memory management protocol for replacing old data storage with new data storage. - View Dependent Claims (43, 44)
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45. An apparatus for drilling a subterranean formation, comprising:
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a drill bit bearing at least one cutting element and adapted for coupling to a drillstring; and
a data analysis module disposed in the drill bit and comprising;
at least two sets of accelerometers disposed at different locations within the drill bit, each accelerometer set configured for sensing an acceleration along at least one axis;
a memory configured for storing information comprising computer instructions and sensor data from the at least two sets of accelerometers; and
a processor configured for executing the computer instructions, wherein the computer instructions are configured for;
collecting the sensor data by sampling the at least two sets of accelerometers at a series of sample times; and
determining an acceleration of the drill bit in at least one direction based on the collected sensor data. - View Dependent Claims (46, 47, 48, 49)
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Specification