Journal Article10.1007/S12517-016-2823-X
Cluster spacing optimization of multi-stage fracturing in horizontal shale gas wells based on stimulated reservoir volume evaluation
47
TL;DR: In this article, the authors proposed a compelling cluster spacing optimization method, which could reduce the uncertainty in cluster spacing design, and provided some new insights on the optimal design of multi-stage fracturing in horizontal shale gas well.
read more
Abstract: The multi-stage fracturing in horizontal well is a common technique for shale gas reservoir exploitation, in which cluster spacing governs the fracturing performance. Undersized cluster spacing might make the stimulated reservoir volume (SRV), activated by the respective hydraulic fracture, excessively overlap with each other, while oversized cluster spacing might leave a large unstimulated volume between neighboring hydraulic fractures; in either case, fracturing would be inefficient. Previous design of cluster spacing has failed to maximize the SRV due to the absence of a dynamic SRV evaluation model. A numerical model of SRV evaluation in shale reservoir was established by integrating four main modules, including fracture propagation, reservoir pressure distribution, formation stress distribution, and natural fracture failure criterion. Then, a method to optimize cluster spacing was developed with the goal of maximizing SRV. In order to validate this method, it was applied in Fuling shale gas reservoir in Southwest China to determine the optimal cluster spacing. The sensitivity of key parameters on the optimal cluster spacing has been analyzed. This research proposed a compelling cluster spacing optimization method, which could reduce the uncertainty in cluster spacing design, and provides some new insights on the optimal design of multi-stage fracturing in horizontal shale gas well.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Numerical simulation of non-planar fracture propagation in multi-cluster fracturing with natural fractures based on Lattice methods
TL;DR: In this paper, a new computationally version of the particle-based model is established by Xsite to study the fracture propagation in multi-cluster fracturing with natural fractures, and triaxial experiments are performed to verify the accuracy of model.
39
Stress shadow effects and microseismic events during hydrofracturing of multiple vertical wells in tight reservoirs: A three-dimensional numerical model
TL;DR: In this article, a 3D numerical model based on actual reservoir data was developed to explore the influence of hydraulic fracturing schemes on stress shadow effects, including fracturing sequences and well spacing.
29
The effect of completion strategy on fracture propagation from multiple cluster perforations in fossil hydrogen energy development
TL;DR: In this paper, the effect of a completion scheme on simultaneous fracture propagation is proposed, in which the coupling fluid flow and stress interaction is considered, and a fracture propagation uniform index model is used to optimize the completion strategy.
28
Numerical simulation and optimization study of the complex fracture network in naturally fractured reservoirs
Hao Zhang,James J. Sheng +1 more
TL;DR: In this paper, a numerical study for the complex fracture network is proposed, where the displacement discontinuity method (DDM) together with the fluid flow function, is adopted to simulate the hydraulic fracture (HF) dynamic propagation which couples the rock and fluid mechanics.
27
Stress and pressure dependent permeability of shale rock: Discrete element method (DEM) simulation on digital core
TL;DR: Wang et al. as mentioned in this paper built a digital shale core cylinder by combining the discrete element method (DEM) and fluid-solid coupling model, and all the micro parameters of the digital rock were delicately calibrated according to the quasi-triaxial compression tests data of real rock core collected from Bakken shale formation, making the macro-mechanical property and seepage characteristic of digital rock are consistent with real shale rock.
18
References
Influence of Geologic Discontinuities on Hydraulic Fracture Propagation (includes associated papers 17011 and 17074 )
Norman R. Warpinski,L.W. Teufel +1 more
TL;DR: In this article, mineback experiments and laboratory tests and analyses of these data are integrated to describe this complex fracture behavior, which can occur by arresting the growth of the fracture, increasing fluid leakoff, hindering proppant transport, and enhancing the creation of multiple fractures.
882
Remark on algorithm 368: Numerical inversion of Laplace transforms
TL;DR: A formalism which allows us to explicate certain rather gross properties of language processing systems and should be useful for designing the outlines of complex programming systems and their implementation, and it should be especially good for documentation.
838
Solution of plane elasticity problems by the displacement discontinuity method. I. Infinite body solution
TL;DR: In this article, the displacement discontinuity method (DSM) is proposed for solving complex boundary value problems in plane elastostatics, which is similar to integral equation or influence function techniques, and contrasts with finite difference and finite element procedures in that approximations are made only on the boundary contours, and not in the field.
593