PreprintArticleVersion 1This version is not peer-reviewed
Effects of Loading and Perforation Parameters on Rock Deformation and Damage Behaviors Induced by Dynamic Loadings Caused by the Fracturing of Tight Oil Reservoirs
Version 1
: Received: 9 August 2024 / Approved: 9 August 2024 / Online: 9 August 2024 (17:05:12 CEST)
How to cite:
Chen, B.; Aibaibu, A.; Liu, Y.; Guo, X.; Zhou, H.; Zhao, X.; Zhu, B. Effects of Loading and Perforation Parameters on Rock Deformation and Damage Behaviors Induced by Dynamic Loadings Caused by the Fracturing of Tight Oil Reservoirs. Preprints2024, 2024080711. https://doi.org/10.20944/preprints202408.0711.v1
Chen, B.; Aibaibu, A.; Liu, Y.; Guo, X.; Zhou, H.; Zhao, X.; Zhu, B. Effects of Loading and Perforation Parameters on Rock Deformation and Damage Behaviors Induced by Dynamic Loadings Caused by the Fracturing of Tight Oil Reservoirs. Preprints 2024, 2024080711. https://doi.org/10.20944/preprints202408.0711.v1
Chen, B.; Aibaibu, A.; Liu, Y.; Guo, X.; Zhou, H.; Zhao, X.; Zhu, B. Effects of Loading and Perforation Parameters on Rock Deformation and Damage Behaviors Induced by Dynamic Loadings Caused by the Fracturing of Tight Oil Reservoirs. Preprints2024, 2024080711. https://doi.org/10.20944/preprints202408.0711.v1
APA Style
Chen, B., Aibaibu, A., Liu, Y., Guo, X., Zhou, H., Zhao, X., & Zhu, B. (2024). Effects of Loading and Perforation Parameters on Rock Deformation and Damage Behaviors Induced by Dynamic Loadings Caused by the Fracturing of Tight Oil Reservoirs. Preprints. https://doi.org/10.20944/preprints202408.0711.v1
Chicago/Turabian Style
Chen, B., Xiangyun Zhao and Bolong Zhu. 2024 "Effects of Loading and Perforation Parameters on Rock Deformation and Damage Behaviors Induced by Dynamic Loadings Caused by the Fracturing of Tight Oil Reservoirs" Preprints. https://doi.org/10.20944/preprints202408.0711.v1
Abstract
This study presents a numerical analysis of rock deformation and damage behaviors induced by dynamic loadings, specifically focusing on the fracturing of tight oil reservoirs. An elastoplastic model based on finite element methods was utilized to simulate the effects of varying loading and perforation parameters. Three distinct scenarios were modeled: a single perforation, boundary loading on three sides, and multiple perforations, each providing unique insights into the mechanical responses of the rock material. The analysis revealed that dynamic effects are highly localized around perforations and loaded boundaries across all scenarios. Acceleration magnitudes are captured with rapid attenuation observed as the distance from the perforation increased. This indicated that the highest stress concentrations and deformation occurred close to the points of loading or perforation. Strain rate analysis in the x direction showed significant fluctuations near the perforations, reflecting intense stress redistributions and compressive deformation, especially prominent in the scenario with multiple perforations. Plastic strain, representing irreversible damage, was found to concentrate near perforation tips and loaded boundaries. However, the pattern of plastic strain accumulation varied: in the small domain scenario with boundary loading, plastic strain did not immediately accumulate next to the loading boundary, whereas in scenarios with single and multiple perforations, damage developed from the loading boundaries. These findings highlight the need for precise control in perforation and dynamic loading processes to manage stress and deformation effectively. It is concluded that optimizing perforation patterns and loading strategies can enhance reservoir stimulation efficiency while minimizing unintended damage to the surrounding formation.
Keywords
Rock mechanics; Numerical study; Completion
Subject
Engineering, Energy and Fuel Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
