Early identification of hidden dangers of geological hazards along oil and gas pipelines combined with InSAR and LiDAR

doi:10.13474/j.cnki.11-2246.2023.0213

Abstract

Abstract: Northeast Sichuan has complex geological conditions, and frequent geological disasters. Geological disasters pose a certain threat to the safe operation of pipelines. It is necessary to use scientific and effective methods to quickly identify hidden geological hazards along the pipeline. Taking an oil and gas pipeline in Dazhou City as an example, uses InSAR to carry out regional surface deformation monitoring, and combines high-precision remote optical sensing technology to preliminarily identify geological hazards along the pipeline. At the same time, obtained the refined characteristics and signs of slope deformation in key areas by airborne LiDAR technology, and further confirm the hidden dangers of geological disasters Finally, the early identification of geological hazards is completed through field investigation. Based on survey data, successfully identified 10 potential geological hazards, including 4 historical landslides or unstable slopes near the pipeline and 3 newly discovered potential geological hazards. The results show that the proposed method system can effectively identify the potential geological hazard areas along oil and gas pipelines, and can provide scientific basis for the prevention and control of geological hazards along oil and gas pipelines.

Key words: oil and gas pipelines, geological hazards, early identification, InSAR, LiDAR

CLC Number:

ZHAO Xun, YANG Mingfeng, WEI Xinnian, WANG Haifang, CHEN Jiangpan, YANG Li. Early identification of hidden dangers of geological hazards along oil and gas pipelines combined with InSAR and LiDAR[J]. Bulletin of Surveying and Mapping, 2023, 0(7): 131-135.

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