US 12,680,396 B2Granted

Real-time wear detection of a drill bit downhole in a wellbore

AssigneeHalliburton Energy Services, Inc.

InventorsYuanyan Chen, Ketan C. Bhaidasna, Siyang Song

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Abstract

Certain aspects and features relate to a system that can perform real-time wear detection of a drill bit downhole in a wellbore. For example, the system can measure, during a drilling operation for drilling of the wellbore, at least one drilling operational parameter using one or more sensors positioned at a surface of the wellbore. The system can generate, during the drilling operation and based on the at least one drilling operational parameter, a bit-rock signature of at-bit parameters for a drill bit used for drilling the wellbore. The system can determine, during the drilling operation and based on the at-bit parameters of the bit-rock signature meeting one or more predefined conditions, a bit condition of the drill bit. The system can output the drill bit for use in modifying the drilling of the wellbore.

Claims20

Dependent claims

A system comprising:

a processing device;
and
a memory device that includes instructions executable by the processing device for causing the processing device to:
measure, during a drilling operation for drilling of a wellbore, at least one drilling operational parameter using one or more sensors positioned at a surface of an operating rig for the wellbore;
determine, during the drilling operation and based on the at least one drilling operational parameter, a specific energy of a subterranean formation and a drilling strength of a drill bit;
determine a correlation coefficient between the specific energy and the drilling strength;
and
automatically adjust the drilling operation by (i) increasing at least one parameter of a drill string in response to determining that the correlation coefficient is below a predetermined threshold or (ii) decreasing the at least one parameter of the drill string in response to determining that the correlation coefficient is above the predetermined threshold, wherein the at least one parameter includes weight on bit, rotations per minute, or flow rate.

5 more elements

A method comprising:

measuring, by a processing device, at least one drilling operational parameter during a drilling operation for drilling of a wellbore using one or more sensors positioned at a surface of an operating rig for the wellbore;
determining, by the processing device and based on the at least one drilling operational parameter, a specific energy of a subterranean formation and a drilling strength of a drill bit;
determining, by the processing device, a correlation coefficient between the specific energy and the drilling strength;
and
automatically adjusting, by the processing device, the drilling operation by (i) increasing at least one parameter of a drill string in response to determining that the correlation coefficient is below a predetermined threshold or (ii) decreasing the at least one parameter of the drill string in response to determining that the correlation coefficient is above the predetermined threshold, wherein the at least one parameter includes weight on bit, rotations per minute, or flow rate.

2 more elements

A non-transitory computer-readable medium comprising program code that is executable by a processing device for causing the processing device to:

measure, during a drilling operation for drilling of a wellbore, at least one drilling operational parameter using one or more sensors positioned at a surface of the wellbore;
determine, based on the at least one drilling operational parameter, a specific energy of a subterranean formation and a drilling strength of a drill bit;
determine a correlation coefficient between the specific energy and the drilling strength;
and
automatically adjust the drilling operation by (i) increasing at least one parameter of a drill string in response to determining that the correlation coefficient is below a predetermined threshold or (ii) decreasing the at least one parameter of the drill string in response to determining that the correlation coefficient is above the predetermined threshold, wherein the at least one parameter includes weight on bit, rotations per minute, or flow rate.

2 more elements

Dependencies are inferred from the claim text.