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Logging instrument reliability evaluation method

A logging instrument and reliability technology, applied in instrumentation, electrical digital data processing, computer-aided design, etc., can solve the problems of accurate assessment of reliable life and endurance, and achieve the effect of accurate analysis

Inactive Publication Date: 2020-07-14
CHANGZHOU INST OF TECH
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Problems solved by technology

[0003] The method for evaluating the reliability of a logging instrument provided by the present invention solves the problem that it is difficult for on-site engineers to make an accurate assessment of the reliable life and endurance of the logging instrument after it goes down the well, and realizes the reliable life and endurance of the logging instrument after it goes down the hole. make an accurate analysis

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  • Logging instrument reliability evaluation method
  • Logging instrument reliability evaluation method
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Embodiment Construction

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0040] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] The invention discloses a method for evaluating the reliability of a logging instrument, which includes the following steps:

[0042] 1. Use the reliability test method to analyze the failure mode and failure mechanism of the antenna system of the logging instrument. Specifically, high temperature aging test or accelerated life test can be used, not limited to the above two test methods, other reliability ...

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Abstract

The invention provides a logging instrument reliability evaluation method. The logging instrument reliability evaluation method comprises the following steps: carrying failure mode analysis and failure mechanism analysis on an antenna system of a logging instrument by utilizing the reliability experiment method; establishing a logging instrument antenna system fault analysis model based on a Weibull distribution model, and performing reliability life analysis on the antenna system of the logging instrument; performing goodness-of-fit test on the logging instrument antenna system fault analysismodel based on the Weibull distribution model by using a Kolmogorov-Smirnov test method; and evaluating the reliability of the logging instrument by utilizing the model which is inspected to be qualified by the Kolmogorov-Smirnov inspection method.

Description

technical field [0001] The invention relates to the technical field of petroleum logging, in particular to a method for evaluating the reliability of a logging instrument. Background technique [0002] Logging instruments play a very important role in unconventional oil and gas exploitation and exploration of deep sea oil and gas resources, and their reliability determines drilling efficiency and production costs. However, due to the influence of the high temperature and high pressure environment in the well, the antenna system is prone to aging and has a high failure rate. The failure of the antenna system will not only affect the measurement accuracy of the logging instrument and the real-time geosteering ability, but also directly affect the normal construction of the well team and cause frequent accidents. It takes a lot of manpower and material resources to drill and run down the hole, and it is difficult for field engineers to make an accurate assessment of its reliabl...

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Application Information

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IPC IPC(8): G06F30/20G06F119/04G06F119/02
Inventor 李辉姜一波蔡建文陶寅涵陆佳佳丁伟
Owner CHANGZHOU INST OF TECH
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