Discrete Element Method as the Numerical Tool for the Hydraulic Fracturing Modeling

Klejment, Piotr; Foltyn, Natalia; Kosmala, Alicja; Dębski, Wojciech

doi:10.1007/978-3-319-71788-3_15

Cited by 2 publications

(2 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The basic idea of this method [2,13,14,105,106] is to discretize the object of study into rigid blocks: each rigid block follows Newton's second law; each rigid block is connected by contact; the interaction between the rigid blocks is described by using the display difference method; the discontinuous units formed between different rigid blocks can be used to describe weak surface structures, such as cracks and laminar surfaces; and the discontinuous units between the channels formed between the discontinuous cells allow for fluid flow, thus solving the fluid-solid coupling problem (Figure 6a). The discrete element method has been introduced by researchers to study the mechanism of hydraulic fracture extension because of its greater advantage in dealing with discontinuous structures, such as natural fractures and laminated surfaces [13,14,17,106,107].…”

Section: Discrete Element Methodsmentioning

confidence: 99%

“…Minerals 2022, 12, 1438 10 of 24 of this method [2,13,14,105,106] is to discretize the object of study into rigid blocks: each rigid block follows Newton's second law; each rigid block is connected by contact; the interaction between the rigid blocks is described by using the display difference method; the discontinuous units formed between different rigid blocks can be used to describe weak surface structures, such as cracks and laminar surfaces; and the discontinuous units between the channels formed between the discontinuous cells allow for fluid flow, thus solving the fluid-solid coupling problem (Figure 6a). The discrete element method has been introduced by researchers to study the mechanism of hydraulic fracture extension because of its greater advantage in dealing with discontinuous structures, such as natural fractures and laminated surfaces [13,14,17,106,107]. Many scholars have established discrete element models based on the discrete element method to simulate the dynamic propagation process of hydraulic fractures during the fracturing process, and among these models, the common models are the wireline network model, discrete fracture model, randomly distributed multi-fracture model and unconventional fracture model [2,14,17,32,109].…”

Section: Discrete Element Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Advances in Hydraulic Fracture Propagation Research in Shale Reservoirs

Gong

Liu

et al. 2022

Minerals

View full text Add to dashboard Cite

The characterization of artificial fracture propagation law in the fracturing process of shale reservoirs is the basis for evaluating the fracture conductivity and a key indicator of the reservoir stimulated effect. In order to improve the fracture stimulated volume of shale reservoirs, this paper systematically discusses the current status of research on artificial fracture propagation law from the research methods and main control factors and provides an outlook on its future development direction. The analysis finds that the study of fracture propagation law by using indoor physical simulation experiments has the advantages of simple operation and intuitive image, and the introduction of auxiliary technologies such as acoustic emission monitoring and CT scanning into indoor physical model experiments can correct the experimental results so as to better reveal the propagation mechanism of artificial fractures. At present, the numerical simulation methods commonly used to study the propagation law of artificial fractures include the finite element method, extended finite element method, discrete element method, boundary element method and phase field method, etc. The models established based on these numerical simulation methods have their own advantages and applicability, so the numerical algorithms can be integrated and the numerical methods selected to model and solve the different characteristics of the propagation law of artificial fractures in different regions at different times can greatly improve the accuracy of the model solution and better characterize the propagation law of artificial fractures. The propagation law of artificial fracture in the fracturing process is mainly influenced by geological factors and engineering factors, so when conducting research, geological factors should be taken as the basis, and through detailed study of geological factors, the selection of the fracturing process can be guided and engineering influencing factors can be optimized.

show abstract