Investigation of present-day in situ stresses in a shale gas reservoir of Sichuan Basin, China: field measurement, stress field modeling, and engineering implications

Rui, Yong; Wu, Jianfa; Song, Yujia; Xu, Ersi; Xu, Bin; Wang, Quanzhou; Wu, Lingke

doi:10.1007/s12517-022-10507-6

Arab J Geosci

2022

DOI: 10.1007/s12517-022-10507-6

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Investigation of present-day in situ stresses in a shale gas reservoir of Sichuan Basin, China: field measurement, stress field modeling, and engineering implications

Yong Rui¹,

Jianfa Wu²,

Yujia Song³

et al.

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2024

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A linear shaped charge cutting model for brittle flat plates

Zhao,

Xi,

Tan

et al. 2024

Journal of Applied Physics

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The dynamic response and damage fracture of brittle materials under explosive cutting have always been important research issues in the fields of military, aerospace, and other engineering fields. In this paper, a linear shaped charge cutting model for explosive cutting of brittle materials is proposed. This model suggests that explosive cutting is caused by the combined effects of jet penetration, spallation, and impact fracture. Theoretical calculation models for jet penetration, spallation, and impact fracture were constructed, and the concept of impact strength was introduced to establish dynamic mechanical performance parameters for brittle materials. A calculation program for explosive cutting of brittle materials was developed using the Python language, which can calculate the jet penetration depth, spallation thickness, and impact fracture thickness by inputting parameters such as the size and mechanical properties of the linear shaped charge and target plate, and determine whether the target plate can be successfully cut. Subsequently, a series of explosion cutting experiments and numerical simulations for brittle target plates were conducted to verify the accuracy of the calculation program. The results indicate a high degree of consistency between simulation, experimentation, and program calculation results. This work can provide guidance and promotion for the design and application of explosive energy harvesting cutters.

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A linear shaped charge cutting model for brittle flat plates

Zhao,

Xi,

Tan

et al. 2024

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

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Investigation of present-day in situ stresses in a shale gas reservoir of Sichuan Basin, China: field measurement, stress field modeling, and engineering implications

Cited by 1 publication

References 69 publications

A linear shaped charge cutting model for brittle flat plates

A linear shaped charge cutting model for brittle flat plates

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