System and method for health assessment of downhole tools
First Claim
1. A system for assessing a health of a borehole tool, the system comprising:
- at least one sensor associated with the borehole tool configured to obtain observation data relating to a characteristic of a formation;
a memory in operable communication with the at least one sensor, the memory including a database configured to store the observation data relating to the characteristic of the formation; and
a processor in operable communication with the memory configured to receive the observation data relating to the characteristic of the formation, the processor including;
a detector receptive to the observation data and configured to identify whether the borehole tool is operating in a normal mode or a degraded mode, the degraded mode being indicative of a fault in the borehole tool;
a diagnoser responsive to the observation data configured to identify a type of fault from at least one symptom pattern; and
a prognoser in operable communication with the at least one sensor, the detector and the diagnoser, the prognoser configured to calculate a remaining useful life (RUL) of the borehole tool based on a degradation path created from information from at least one of the at least one sensor, the detector and the diagnoser, wherein the prognoser includes a population prognoser configured to calculate the RUL based on a duration of use of the borehole tool, a cause prognoser configured to calculate the RUL based on causal data, and an effect prognoser configured to calculate the RUL based on effect data generated from the fault.
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Accused Products
Abstract
A system for assessing the health of a mechanism includes a processor for receiving observation data from at least one sensor, the processor including: a detector receptive to the observation data and capable of identifying whether the mechanism is operating in a normal or degraded mode; a diagnoser to identify a type of fault from at least one symptom pattern; and a prognoser capable of calculating a remaining useful life (RUL) of the mechanism, wherein the prognoser includes a population prognoser for calculating the RUL based on a duration of use of the mechanism, a cause prognoser for calculating the RUL based on causal data, and an effect prognoser for calculating the RUL based on effect data generated from the fault. A method and computer program product for assessing the health of a downhole tool is also disclosed.
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Citations
18 Claims
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1. A system for assessing a health of a borehole tool, the system comprising:
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at least one sensor associated with the borehole tool configured to obtain observation data relating to a characteristic of a formation; a memory in operable communication with the at least one sensor, the memory including a database configured to store the observation data relating to the characteristic of the formation; and a processor in operable communication with the memory configured to receive the observation data relating to the characteristic of the formation, the processor including; a detector receptive to the observation data and configured to identify whether the borehole tool is operating in a normal mode or a degraded mode, the degraded mode being indicative of a fault in the borehole tool; a diagnoser responsive to the observation data configured to identify a type of fault from at least one symptom pattern; and a prognoser in operable communication with the at least one sensor, the detector and the diagnoser, the prognoser configured to calculate a remaining useful life (RUL) of the borehole tool based on a degradation path created from information from at least one of the at least one sensor, the detector and the diagnoser, wherein the prognoser includes a population prognoser configured to calculate the RUL based on a duration of use of the borehole tool, a cause prognoser configured to calculate the RUL based on causal data, and an effect prognoser configured to calculate the RUL based on effect data generated from the fault. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for assessing a health of a borehole tool, the method comprising:
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receiving observation data relating to a characteristic of a formation obtained at at least one sensor associated with the borehole tool; and using a processor to; operate a detector to identify whether the borehole tool is operating in a normal mode or a degraded mode, the degraded mode being indicative of a fault in the borehole tool, operate a diagnoser responsive to an identification of the degraded mode to identify a type of fault from at least one symptom pattern, create a degradation path using information from the at least one of the sensor, the detector and the diagnoser, and operate a prognoser to calculate a remaining useful life (RUL) of the borehole tool based on a comparison of the observation data with the created degradation path wherein calculating the RUL is based on;
a duration of use of the borehole tool, causal data, and effect data generated from the fault. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A non-transitory computer-readable medium containing computer instructions stored therein for causing a computer processor to perform a method for assessing a health of a borehole tool, the method comprising:
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receiving observation data relating to a characteristic of a formation at at least one sensor associated with the borehole tool; operating a detector to identify whether the borehole tool is operating in a normal mode or a degraded mode, the degraded mode being indicative of a fault in the borehole tool; operating a diagnoser responsive to an identification of the degraded mode to identify a type of fault from at least one symptom pattern; creating a degradation path using information from the at least one of the sensor, the detector and the diagnoser; and operating a prognoser to calculate a remaining useful life (RUL) of the borehole tool based on a comparison of the observation data with the created degradation path, wherein calculating the RUL is based on;
a duration of use of the borehole tool, causal data, and effect data generated from the fault. - View Dependent Claims (18)
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Specification