A new failure analysis and validation scheme for shale gas pilot processes

Abstract

Shale gas pilot processes are usually composed of skid-mounted assemblies of individual equipment, with weak process matching, unknown unit equipment wear, and high failure rates. We propose a solution using the grey relational analysis model, analytical hierarchy process model, and reliability analysis model to achieve failure analysis, prediction, and improvement validation, respectively. The probability and degree of influence relationships between the factors affecting the occurrence of failures are discussed. The practical application of the study area shows that: when the threshold value is set to 0.8833, it can match the grey correlation conclusion well, connect the logic of hierarchical analysis, and cluster the engineering problems; this study area needs to focus on preventing the problems of erosion damages and puncture leakage. Although the short life of the nozzle has a large impact on the overall process, but the frequency of occurrence is not high, the next step needs to continue to collect data, using other mathematical models to mine the fault data internal information.

Keywords:

• Failure
• grey correlation analysis
• hierarchical test
• process
• testing

Authors’ contributions

Ye Yang: Conceptualization, Methodology, Writing - original draft, Writing - review & editing; Zhiqiang Liu: Conceptualization, Methodology, Writing - original draft, Writing - review & editing.

Disclosure statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Data availability

The data that supports the findings of this study are available in this article.

Additional information

Funding

We acknowledge funding from China Petrochemical Shale Gas "Ten Dragons" Science and Technology Research Project (P18051).