Optimization Study on Fracture Morphology Based on Different Reservoir Types

Yu Fu; Fuwei Li

doi:10.54097/ajst.v6i3.10513

Authors

Yu Fu
Fuwei Li

DOI:

https://doi.org/10.54097/ajst.v6i3.10513

Keywords:

Reservoir classification, Fracture morphology, Fracture length, Conductivity.

Abstract

The research on the optimization of hydraulic fracturing fracture morphology is an essential aspect of hydraulic fracturing design. However, suboptimal fracture morphology resulting in lower than expected production often occurs due to the mismatch between reservoir types and hydraulic fracturing operational parameters. Different geological sweet spot reservoirs require distinct optimal fracture morphologies. In this paper, we categorize reservoirs into types I, II, and III, considering them as preferred layers for hydraulic fracturing. Three geological models are established to investigate the impact of fracture length and fracture conductivity on post-fracturing productivity, aiming to determine the optimal fracture morphology. The findings of this research will provide a scientific basis for the development of tight sandstone gas reservoirs in the Ordos Basin.

Downloads

Download data is not yet available.

References

Li, X., Wang, L., Wang, W., et al. Innovative Key Technologies and Efficient Development Practice of Hydraulic Fracturing Based on Small Borehole Completion: A Case Study of Tight Gas Reservoirs in the Sulige Gas Field. Natural Gas Industry, 2022, 42(09), 76-83.

Fu, S., Fei, S., Ye, Z., et al. Parameter Optimization of Horizontal Wells in Tight Sandstone Gas Reservoirs. Natural Gas Industry, 2018, 38(4), 10.

Wang, Z. Research on the EFGM of Two-dimensional Random Crack Propagation Problems. (Master's thesis). Xinyang Normal University, 2021. DOI: 10.27435/d.cnki.gxsfc.2021.000021.

Sun, J., Zeng, B., Liu, J., et al. Numerical Simulation of Fracture Network Expansion in Deep Shale Hydraulic Fracturing in Southern Sichuan. Journal of Engineering Geology, 2022, 30(04), 1193-1202.

Damjanac, B., Gil, I., Pierce, M., et al. A New Approach to Hydraulic Fracturing Modeling in Naturally Fractured Reservoirs. Proceedings of the 44th US Rock Mechanics Symposium and 5th US-Canada Rock Mechanics Symposium, American Rock Mechanics Association, 2010.

Dershowitz, W. S., Cottrell, M. G., Lim, D. H., et al. A Discrete Fracture Network Approach for Evaluating Hydraulic Fracture Stimulation of Naturally Fractured Reservoirs. Proceedings of the 44th US Rock Mechanics Symposium and 5th US-Canada Rock Mechanics Symposium, 2010, ARMA-10-475.

Riahi, A., Damjanac, B. Numerical Study of the Interaction between Injection and the Discrete Fracture Network in Enhanced Geothermal Reservoirs. Proceedings of the 47th U.S. Rock Mechanics/Geomechanics Symposium, 2013, ARMA-2013-333.

Cottrell, M., Hosseinpour, H., Dershowitz, W. Rapid Discrete Fracture Analysis of Hydraulic Fracture Development in Naturally Fractured Reservoirs. Unconventional Resources Technology Conference, 2013, 2341-2353.

Cheng, Y., Li, Y., Shi, X., et al. Analysis and Application of Fracture Network Model for Shale Gas Reservoirs. Natural Gas Industry, 2013, 33(9), 53-59.