A new pseudo 3D hydraulic fracture propagation model for sandstone reservoirs considering fracture penetrating height

Zhao, Wenwei; Ji, Guofa; Li, Kuidong; Liu, Wei; Xiong, Likun; Xiao, Ji

doi:10.1016/j.engfracmech.2022.108358

Cited by 16 publications

(15 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to Olson's (Figure 3A) and Zhao's (Figure 3B) research, the fractures at the array's ends have the most freedom to open. The result of BDEM (Figure 3C) is consistent with the results of Olson (2008) and Zhao et al (2022). This verifies that the calculation method (i.e., the 3D block distinct element method) can simulate multiple fracturing of the horizontal well with great accuracy.…”

Section: The Geometry Of Seven Fracturessupporting

confidence: 86%

Influence of the bedding plane on the propagation of multiple hydraulic fractures

Wang

Zheng

2023

Front. Earth Sci.

View full text Add to dashboard Cite

The presence of bedding planes (BPs) in unconventional shale reservoirs is common and widespread. BPs always affect fracture propagation. The objective of this study was to investigate the impacts of BPs on multiple hydraulic fracturing. The BPs were assumed to be perpendicular to the direction of the fractures. Based on the block distinct element method, we established a numerical model to simulate multiple fracture propagation in reservoirs with BPs. The model considered the fluid partitioning of multiple fractures and the fracture interaction by stress shadow. The numerical simulations clearly showed that the BPs reduced the non-uniform growth of multiple fractures. The results indicated that when hydraulic fractures met BPs, the BPs likely prevented the hydraulic fractures from passing through the formation with a smaller stress contrast. When hydraulic fracturing in a formation containing BPs, the key problem is how to reduce the obstructive effects of the BPs to increase the length of the main fractures.

show abstract

Section: The Geometry Of Seven Fracturessupporting

confidence: 86%

Influence of the bedding plane on the propagation of multiple hydraulic fractures

Wang

Zheng

2023

Front. Earth Sci.

View full text Add to dashboard Cite

show abstract

“…Tan et al (2021) proposed the notion of transition zone in the layered formation and investigated the effects of multiple influencing factors on hydraulic fracture vertical propagation behavior based on XFEM-based CZM method. Zhao et al (2022) given a new pseudo 3D hydraulic fracture propagation model for sandstone reservoirs considering fracture penetrating height. In conclusion, the mechanism of weak bedding plane hindering vertical propagation of fractures has been preliminarily understood, that is, the shear behavior on the bedding plane increases the difficulty of hydraulic fracture penetration.…”

Section: Introductionmentioning

confidence: 99%

Research on the influence of stress on the penetration behavior of hydraulic fracture: Perspective from failure type of beddings

Bai

Liao

et al. 2023

Front. Earth Sci.

View full text Add to dashboard Cite

The failure types of bedding determine the penetration behavior of hydraulic fracture. A stratum model containing bedding was established based on the 3D block distinct element method to explore the penetration behavior of hydraulic fractures with different types of bedding. The mechanics of hydraulic fractures penetrating the shear- failure bedding plane and tensile-failure bedding plane were analyzed. The results showed that the shear-failure bedding plane was more difficult to expand than the tensile-failure bedding plane after the hydraulic fracture turns to bedding plane. The initial stress magnitude controls the expansion difficulty of hydraulic fractures, and the high stress magnitude attenuated penetration behavior. The vertical stress affected the shear failure by increasing the shear strength of the bedding plane. It affected the tensile failure by increasing the initiation stress of the bedding plane. The effect of horizontal stress on the penetration behavior included the influence on the initiation stress of vertical joints and the enhancement of the interference stress on the horizontal bedding plane. The conclusions can provide the guidance for hydraulic fracturing in reservoir with bedding planes.

show abstract

“…Therefore, a technical method to enhance coal permeability is needed. Hydraulic fracturing is an effective method and is widely used in the production of coalbed methane and shale gas 1–4 . Nowadays, hydraulic fracturing is applied to increase the permeability of coal during gas extraction.…”

Section: Introductionmentioning

confidence: 99%

“…Hydraulic fracturing is an effective method and is widely used in the production of coalbed methane and shale gas. [1][2][3][4] Nowadays, hydraulic fracturing is applied to increase the permeability of coal during gas extraction. The stimulated fractures are more conducive to gas migration.…”

Section: Introductionmentioning

confidence: 99%

Exploring the propagation of hydraulic fracture with nonuniform stress based on the block distinct element method

Jia

Gao

Lei

et al. 2023

Energy Science & Engineering

View full text Add to dashboard Cite

The stress field is a critical factor for fracture propagation in hydraulic fracturing. Attention should be paid to fracture propagation with the nonuniform stress field. A stress field with gradient was established to investigate the influence of the nononuniform stress on fracture propagation. Based on the three‐dimensional block distinct element model the fracture propagation law with nononuniform stress was obtained. The mechanism of stress gradient and magnitude of uneven fracture propagation was revealed. Aiming at the uneven propagation, the influence of elastic modulus and construction parameters was analyzed. The results show that the influence of the elastic modulus follows the χ2 distribution equation and the influence of construction parameters can be expressed by the product of the injection rate and fluid viscosity. This conclusion is of theoretical significance for fracturing with nonuniform in situ stress.

show abstract

A new pseudo 3D hydraulic fracture propagation model for sandstone reservoirs considering fracture penetrating height

Cited by 16 publications

References 11 publications

Influence of the bedding plane on the propagation of multiple hydraulic fractures

Influence of the bedding plane on the propagation of multiple hydraulic fractures

Research on the influence of stress on the penetration behavior of hydraulic fracture: Perspective from failure type of beddings

Exploring the propagation of hydraulic fracture with nonuniform stress based on the block distinct element method

Contact Info

Product

Resources

About