A coupled hydraulic-mechanical-damage geotechnical model for simulation of fracture propagation in geological media during hydraulic fracturing

Li, Tianjiao; Li, Lianchong; Tang, Chun’an; Zhang, Zilin; Li, Ming; Zhang, Liaoyuan; Li, Aishan

doi:10.1016/j.petrol.2018.10.104

Cited by 49 publications

(29 citation statements)

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“…The damage variable of an element undergoing shear failure or tensile failure is expressed separately as follows [31,34,37]:…”

Section: Methodsmentioning

confidence: 99%

“…The hydraulic behavior responds to mechanics by permeability variation as Equation 8, i.e., the permeability of an element varies as a function of the effective stress state during elastic deformation [58][59][60], increases according to the cubic law when elements are damaged, and obey the assumption of pipe laminar flow for failure elements [31,37,61,62]:…”

Section: Of 29mentioning

confidence: 99%

“…The numerical model built in RFPA-Petrol was populated with a fine mesh discretization considering a distribution of material properties as shown in Figure 1c,d. The dimensions and parameters of the numerical model are shown in Table 1 [31,65]. The numerical model had 1 million elements.…”

Section: Validationmentioning

confidence: 99%

“…By using this approach, the stress distribution in the multilayered formations is calculated directly without defining high-stress zones or low-stress zones artificially. The HMD model is utilized in FEM based rock failure process analysis on petroleum problems (RFPA-Petrol) simulator [30,31]. The RFPA-Petrol considers that material heterogeneity causes macroscopic non-linear material behavior, which is essentially a representation of the accumulation of mesoscopic damage [30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

“…The numerical experiment models are divided into 3 groups discussing the impact of Young's modulus and strength, Poisson's ratio, and permeability of interlayers on fracture geometry respectively. The material and seepage parameters of oil-bearing layers and interlayers of different models are listed inTables 2 and 3[31,65,67].…”

mentioning

confidence: 99%

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The Influence of an Interlayer on Dual Hydraulic Fractures Propagation

Tang

Rutqvist

et al. 2020

Energies

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Multi-cluster hydraulic fracturing of long-range horizontal wells is an approach for enhancing the productivity of low-permeability shale reservoirs. In this study, RFPA-Petrol (rock failure process analysis on petroleum problems) is applied for modeling hydraulic fracture propagation in multilayered formations. RFPA-Petrol based on coupled hydraulic-mechanical-damage (HMD) modeling was first tested by modeling a laboratory scale experiment on a physical (cement) model with a single completion. The modeling demonstrated the capability of RFPA-Petrol for simulating hydraulic fracture propagation. Then, we used RFPA-Petrol to investigate how the difference in material properties between oil-bearing layers and interlayers and the fracturing fluid properties influence the propagation of dual fractures in multilayered laboratory-scale models. In this case, the models with geological discontinuities in the vertical direction are strongly heterogeneous and RFPA-Petrol simulations successfully modeled the fracture configurations.

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“…The damage variable of an element undergoing shear failure or tensile failure is expressed separately as follows [31,34,37]:…”

Section: Methodsmentioning

confidence: 99%

Section: Of 29mentioning

confidence: 99%

Section: Validationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

The Influence of an Interlayer on Dual Hydraulic Fractures Propagation

Tang

Rutqvist

et al. 2020

Energies

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An integrated numerical visualization teaching approach for an undergraduate course, Flow in Porous Media: An attempt toward sustainable engineering education

Okere

et al. 2021

Comp Applic In Engineering

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The complexities of observing flow phenomena in porous media have made it difficult to teach the course, Flow in Porous Media, to undergraduate students majoring in petroleum engineering. In this study, we propose an integrated numerical visualization teaching (INVT) approach that is based on MATLAB Pdetool, graphical user interface, and Visual Basic Programming. The effectiveness of the INVT method was evaluated in two ways: First, via statistical analyses of the examination grades of two groups (experimental and control groups) of selected undergraduate students from the school of petroleum engineering, after a carefully designed INVT tutorial program was conducted on the experimental group, and

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Numerical simulation of the non‐Newtonian fracturing fluid influences on the fracture propagation

Wen¹,

Huang²,

Hou³

et al. 2021

Energy Science & Engineering

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Hydraulic fracturing fracture propagation is the main factor affecting the fracturing effect. In view of the more diversified selection of fracturing fluid, the problem of fracture propagation in non-Newtonian fluid fracturing is often encountered in fracturing. In this paper, the influencing factors of fracture propagation of non-Newtonian fluid fracturing fluid are analyzed. Based on PKN model, a threedimensional fracture propagation model considering the rheology and filtration of fracturing fluid is established, the better fracture shape simulation results are given, and the effects of fluid properties, rock physical properties, and injection parameters on fracture propagation are analyzed in detail. The research shows that (1) in the process of fracture propagation, the fracture length and width gradually increase, and the corresponding pressure in the fracture also increases. The overall increase trend is that the growth is rapid in the initial stage of fracturing and gradually slows down in the later stage.(2) The greater the consistency coefficient and rheological index, the greater the fracture width and pressure in the fracture, and the easier it is to form wide fracture. The larger the filtration coefficient is, the weaker the fracture forming ability is, and the fracture width, length, and pressure in the fracture are reduced. (3) Rock physical properties have a certain influence on fracture propagation, Young's modulus has a great influence on fracture propagation, while Poisson's ratio has little influence on it. However, the larger the Young's modulus, the more difficult the fracture is to expand, and the smaller the corresponding fracture width. (4) The larger the pump injection rate, the larger the fracture size and the higher the pressure in the fracture. The model can provide a theoretical basis for fracturing design and fracture shape prediction.

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A coupled hydraulic-mechanical-damage geotechnical model for simulation of fracture propagation in geological media during hydraulic fracturing

Cited by 49 publications

References 50 publications

The Influence of an Interlayer on Dual Hydraulic Fractures Propagation

The Influence of an Interlayer on Dual Hydraulic Fractures Propagation

An integrated numerical visualization teaching approach for an undergraduate course, Flow in Porous Media: An attempt toward sustainable engineering education

Numerical simulation of the non‐Newtonian fracturing fluid influences on the fracture propagation

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