Izvorni znanstveni članak

https://doi.org/10.21278/TOF.483058123

The Vibroseis Baseplate Vibration Damage Failure Mechanism and the Prediction of Fatigue Life

Zhen Chen ; State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development; Sinopec Key Laboratory of Seismic Elastic Wave Technology; Southwest Petroleum University, Chengdu, Sichuan, 610500, P.R. China
Chaocheng Wei ; Oil and Gas Equipment Technology Sharing and Service Platform of Sichuan Province, Southwest Petroleum University, Chengdu, Sichuan, 610500, P.R. China
Shulong Nie ; Oil and Gas Equipment Technology Sharing and Service Platform of Sichuan Province, Southwest Petroleum University, Chengdu, Sichuan, 610500, P.R. China
Ling Liu ; Engineering and Technology Research Institute, of Western Drilling Engineering, CNPC
Shuang Jing ; Oil and Gas Equipment Technology Sharing and Service Platform of Sichuan Province, Southwest Petroleum University, Chengdu, Sichuan, 610500, P.R. China
Zhiqiang Huang ; Oil and Gas Equipment Technology Sharing and Service Platform of Sichuan Province, Southwest Petroleum University, Chengdu, Sichuan, 610500, P.R. China
Lei Hao ; Bureau of Geophysical Prospecting International, CNPC, Zhuozhou, Hebei, China
Guangjing Zhou ; Branch Technical Services Company, of Western Drilling Tubing & Well Control Technical Services

Sažetak

The present study investigates the impact of earthquake excitation on vibroseis, which can lead to fatigue failure and cracking of the welded area of a baseplate. This reduction in service life adversely affects the quality of geophysical prospecting signals. To mitigate this issue, the study develops a vibrator-geodetic coupling model. It investigates the calculation method and loading law for generating baseplate output force, uncovering the underlying damage mechanisms through macroscopic and micro-morphological analysis. Fatigue tests using a three-point bending method establish correlations with the observed characteristics. The method of fitting S-N curves and the model for predicting lifespan significantly improve the accuracy and efficiency of predicting the baseplate lifespan. The findings support the enhancement of reliability in vibrators and baseplates, with potential applications in the research and development of oil and gas exploration technology and engineering equipment.

Ključne riječi

vibroseis baseplate; vibration mechanics; damage mechanisms; three-point bending fatigue test; fatigue life

Hrčak ID:

318138

URI

https://hrcak.srce.hr/318138

Datum izdavanja:

19.6.2024.

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