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Real-time prognostic on downhole printed circuit board assembly of measurement-while-drilling/logging-while-drilling
Real-time prognostic on downhole printed circuit board assembly of measurement-while-drilling/logging-while-drilling
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机译:随钻测量/随钻测井实时预测井下印刷电路板组件
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摘要
A method and apparatus for estimating a time to failure of an electronic component used in a downhole environment is disclosed. A stress is applied to the electronic component to cause failure of a plurality of prognostic sensors associated with the electronic component, wherein the stress level at which a prognostic sensor fails is indicative of a stress level at which the electronic component fails. Failure times are obtained due to the applied stress for the plurality of prognostic sensors. A trend is determined from the obtained failure times of the prognostic sensors. The time of failure of the electronic component is estimated from the determined trend.
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