Numerical Experimental Study on Fracture Extension Law of Hydraulic Fracturing Based on Particle Discrete Element

DOI

10.2991/978-94-6463-793-9_18How to use a DOI?

Keywords

Hydraulic fracturing; Fracture extension; Discrete unit method

Abstract

The research of hydraulic fracturing theory and technology is developed with the development of oil and natural gas, and in the petroleum industry, hydraulic fracturing technology has been an important measure to increase the production of oil and natural gas. In order to study the crack extension law of rock body by hydraulic fracturing, sandstone is taken as the research object, and a hydraulic fracturing model is established on the basis of Cundall’s fluid-solid coupling theory to analyze the rupture as well as the crack extension of hydraulic fracturing under different influencing factors. The results show that hydraulic fracturing cracks expand along the direction of the maximum principal stress, and when the horizontal principal stress is equal to the vertical principal stress, the direction of crack expansion is not fixed. As the ground stress field increases, the hydraulic fracture rupture pressure of the rock gradually increases; as the diameter of the well bore increases, the rock fracture pressure decreases. The results can provide some reference for a better understanding of model initiation and crack extension.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Jiangchun Hu
AU  - Miao Liu
AU  - Luyang An
AU  - Bing Liu
AU  - Mengyuan Li
PY  - 2025
DA  - 2025/07/28
TI  - Numerical Experimental Study on Fracture Extension Law of Hydraulic Fracturing Based on Particle Discrete Element
BT  - Proceedings of the 2025 8th International Conference on Traffic Transportation and Civil Architecture (ICTTCA 2025)
PB  - Atlantis Press
SP  - 187
EP  - 199
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-793-9_18
DO  - 10.2991/978-94-6463-793-9_18
ID  - Hu2025
ER  -