THERMAL SCIENCE
International Scientific Journal
MECHANICAL CHARACTERIZATION OF FRACTURED GRANITE RESERVOIRS
ABSTRACT
In this paper, on the basis of laboratory triaxial mechanical experiments, a granite model including different numbers and angles of fractures was established by the discrete element method. Combined with the laboratory triaxial mechanical experiments and PCF simulation results, the effects of the number and angle of fractures on the rock mechanical properties of fractured granite reservoirs were analyzed. The results show that the existence of fractures significantly reduces the strength of the reservoir, but the increase of the fracture angle and the confining pressure will weaken the degree of this reduction, and the fractures are easy to expand and connect during the loading process.
KEYWORDS
PAPER SUBMITTED: 2023-06-12
PAPER REVISED: 2023-08-19
PAPER ACCEPTED: 2023-12-29
PUBLISHED ONLINE: 2024-02-18
THERMAL SCIENCE YEAR
2024, VOLUME
28, ISSUE
Issue 2, PAGES [1135 - 1140]
- Ye, T., et al., The Reservoir Characteristics And Their Significance For Deliverability In Metamorphic Granite Buried Hill: A Case Study from the JZS Oil Field in the Liaodong Bay Basin, NE China, Arabian Journal of Geosciences, 12 (2019), 20, pp. 1-9
- You, L., et al., Reservoir Characteristics and Genetic Mechanisms of the Mesozoic Granite Buried Hills in the Deep-Water of the Qiongdongnan Basin, Northern South China Sea, Acta Geologica Sinica, 95 (2021), 1, pp. 259-267
- Zuo, X., et al., Study on the Solid Production Mechanism of the Fractured Granite Reservoirs-Example of YL Area in Qiongdongnan Basin, Processes, 10 (2022), 12, 2556
- Dou, L., et al., Study on the Effect Of High-Temperature Heat Treatment On The Microscopic Pore Structure and Mechanical Properties of Tight Sandstone, Geofluids, 2021 (2021), 2, pp. 1-13
- Li, Y., et al., Particle Flow Analysis of Parallel Double Crack Evolution under Uniaxial Compression, Journal of Central South University (Science and Technology), 50 (2019), 12, pp. 3035-3045
- Kunmeng, L., et al., Method to Determine Microscopic Parameters of PFC-2D Numerical Model, Journal of Northeastern University: Natural Science, 37 (2016), 4, pp. 563-567