Invention Grant
- Patent Title: Real-time prognostic on downhole printed circuit board assembly of measurement-while-drilling/logging-while-drilling
- Patent Title (中): 井下印刷电路板组件的实时预测同时进行钻孔/测井同步测量
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Application No.: US13251396Application Date: 2011-10-03
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Publication No.: US09051814B2Publication Date: 2015-06-09
- Inventor: Sheng Zhan , Izhar Ahmad
- Applicant: Sheng Zhan , Izhar Ahmad
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Cantor Colburn LLP
- Main IPC: G01V1/40
- IPC: G01V1/40 ; E21B41/00 ; G01M99/00 ; G01R31/28
Abstract:
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.
Public/Granted literature
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