LAPSE:2024.0889
Published Article
LAPSE:2024.0889
Analysis of Multi-Fracture Extension Pattern of Horizontal Wells in Shale Reservoirs under Natural Fracture Perturbation
June 7, 2024
Abstract
There are many natural fractures in shale reservoirs, changes in hydraulic fracture extension patterns. In the paper, a multi-fracture extension finite element model for horizontal wells in shale reservoirs under the disturbance of natural fractures is established by combining the actual geological parameters and construction parameters of a horizontal well multi-fracturing operation in X oilfield to analyze the effects of the difference in geostress, elastic modulus, angle of natural fractures, and the number of natural fracture groups on the hydraulic fracture extension. The results show that with the increase in ground stress difference and natural fracture angle, hydraulic fractures are more likely to penetrate the natural fractures; with the increase in elastic modulus, the fracture stress and tip stress increase, the volume of rupture unit, the fracture extension width and the pore pressure concentration area decrease, and it is easy to form a long and narrow fracture; with the increase in the number of fracture groups, the connectivity of reservoir fractures increases, the extension of fractures is stronger, and it is easier to form a complex fracture network.
There are many natural fractures in shale reservoirs, changes in hydraulic fracture extension patterns. In the paper, a multi-fracture extension finite element model for horizontal wells in shale reservoirs under the disturbance of natural fractures is established by combining the actual geological parameters and construction parameters of a horizontal well multi-fracturing operation in X oilfield to analyze the effects of the difference in geostress, elastic modulus, angle of natural fractures, and the number of natural fracture groups on the hydraulic fracture extension. The results show that with the increase in ground stress difference and natural fracture angle, hydraulic fractures are more likely to penetrate the natural fractures; with the increase in elastic modulus, the fracture stress and tip stress increase, the volume of rupture unit, the fracture extension width and the pore pressure concentration area decrease, and it is easy to form a long and narrow fracture; with the increase in the number of fracture groups, the connectivity of reservoir fractures increases, the extension of fractures is stronger, and it is easier to form a complex fracture network.
Record ID
Keywords
fracture networks, horizontal well, multi-fractures, natural fracture, shale reservoirs
Subject
Suggested Citation
Wang J, Zhao H, Liu H, Li W, Li J, Tang P, Zhang M, Liu Y, Wang S, Xu X, He T. Analysis of Multi-Fracture Extension Pattern of Horizontal Wells in Shale Reservoirs under Natural Fracture Perturbation. (2024). LAPSE:2024.0889
Author Affiliations
Wang J: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China; National Key Laboratory of Continental Shale Oil, Daqing 163318, China [ORCID]
Zhao H: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China; National Engineering Research Center of Oil & Gas Drilling and Completion Technology, Daqing 163318, China
Liu H: Research Institute of Exploration and Development, PetroChina Dagang Oilfield Company, Tianjin 300450, China
Li W: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China; National Key Laboratory of Continental Shale Oil, Daqing 163318, China; National Engineering Research Center of Oil & Gas Drilling and Completion Technology, Daqing 163 [ORCID]
Li J: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
Tang P: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China; Daqing Oilfield Production Technology Institute, Daqing 163453, China
Zhang M: Daqing Oilfield Production Technology Institute, Daqing 163453, China
Liu Y: Institute of Geology, No. 3 Oil Production Plant of Daqing Oilfield Co., Ltd., Daqing 163113, China
Wang S: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
Xu X: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
He T: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
Zhao H: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China; National Engineering Research Center of Oil & Gas Drilling and Completion Technology, Daqing 163318, China
Liu H: Research Institute of Exploration and Development, PetroChina Dagang Oilfield Company, Tianjin 300450, China
Li W: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China; National Key Laboratory of Continental Shale Oil, Daqing 163318, China; National Engineering Research Center of Oil & Gas Drilling and Completion Technology, Daqing 163 [ORCID]
Li J: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
Tang P: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China; Daqing Oilfield Production Technology Institute, Daqing 163453, China
Zhang M: Daqing Oilfield Production Technology Institute, Daqing 163453, China
Liu Y: Institute of Geology, No. 3 Oil Production Plant of Daqing Oilfield Co., Ltd., Daqing 163113, China
Wang S: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
Xu X: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
He T: School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
Journal Name
Processes
Volume
12
Issue
3
First Page
614
Year
2024
Publication Date
2024-03-20
ISSN
2227-9717
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PII: pr12030614, Publication Type: Journal Article
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LAPSE:2024.0889
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https://doi.org/10.3390/pr12030614
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Jun 7, 2024
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