Effects of microfractures on permeability in carbonate rocks based on digital core technology

Carbonate reservoirs develop many different types of microfractures that play an important role in increasing the effective reservoir space and permeability. Thus, qualitative quantitative characterisation effect on permeability rocks is essential. In this study, a method for evaluating impact microfracture parameters carbonate rock was proposed. Lattice Boltzmann simulations were carried two digital cores with artificially added microfractures. Based simulation results, partial least squares regression analysis used to investigate cores. Increases fracture length, aperture, density found linearly increase rocks, as length increased penetrate whole core, exponential observed. Additionally, core more significant high compared low-permeability Although both fractures matrix contribute cores, former have greater Cited as: Liu, C., Zhang, L., Li, Y., F., Martyushev, D. A., Yang, Y. Effects based technology. Advances Geo-Energy Research, 2022, 6(1): 86-90. https://doi.org/10.46690/ager.2022.01.07