# A Proposal for Rapid Assessment of Long-Distance Oil and Gas Pipelines After Earthquakes
## 6 Conclusions  
In this paper, a theoretical framework for a post-earthquake rapid evaluation method for long-distance oil and gas pipeline safety is initially constructed by sorting out the relevant elements of long-distance oil and gas pipeline engineering and seismic disasters. The main conclusions are as follows:  
1. The elements of pipeline safety evaluation under the influence of seismic disasters are identified, and it is concluded that fault activities and coseismic landslides in seismic disasters are most likely to affect pipeline safety. There are many monitoring devices along the pipeline, but they have not yet formed a unified system, and it is not possible to realise the safety evaluation of the whole pipeline. Pipeline engineering in mountainous sections is more complicated, with varying resistance to geological disasters. Therefore, a comprehensive evaluation of post-earthquake pipeline safety is necessary.
2. The application level and evaluation means of the post-earthquake pipeline safety rapid evaluation system are divided, and based on this, a four-step evaluation process system of susceptibility evaluation, hazard rating, risk evaluation, and safety evaluation is proposed for the post-earthquake pipeline safety rapid evaluation, which can realise the comprehensive theoretical framework of multi-source data.
3. The steps and processes of the post-earthquake pipeline safety rapid evaluation method are organized and introduced, and the general structure is outlined, providing a framework for the integration of multi-source data, which can realise the rapid assessment of post-earthquake pipeline risk and the adjustment of pipeline risk level based on real-time data. This enables rapid assessment of post-earthquake pipeline risk and the adjustment of pipeline risk level based on real-time data. This, in turn, can provide timely decision-making basis for pipeline management and reduce the potential damages caused by earthquakes to the pipelines.  
It is important to note that this study is still in the preliminary construction framework stage and requires continuous deepening and optimisation. The subsequent study can aim to establish a more perfect data platform for pipeline safety evaluation to achieve efficient collection, transmission, storage, processing. and analysis of various types of data, providing a more solid data foundation for the evaluation method. Concurrently, the practical application research on different regions and types of oil and gas pipelines should be strengthened to continuously optimise the evaluation system and improve its scientificity and practicality.  
Conceptualization, H.J., L.H., H.L. and W.J.; methodology, L.H., H.L. and W.J.; writing--original draft preparation, L.H., H.L. and W.J.; writing--review and editing, H.J., L.H., Q.D. and R.N.; visualization, L.H.; supervision, H.J., Q.D. and R.N.; project administration, Q.D.; funding acquisition, Q.D. and H.J. All authors have read and agreed to the published version of the manuscript.  
This research was funded by the \"Unveiling and Commanding\" Project of PipeChina, grant number AQWH202304.  
Not applicable.  
No new data was created for this article.  
Author [PERSON] was employed by the company PipeChina. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.