Fracture reorientation mechanism during hydraulic fracturing based on XFEM simulation

Understanding the reorientation mechanism of near-wellbore hydraulic fractures is very important for optimizing parameters in field fracturing treatments. In this study, a fully 2D coupled seepage–stress model based on the extended finite element method (XFEM) model is applied to investigate the fra...

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Main Author: Xiaolong Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-11-01
Series:Frontiers in Earth Science
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Online Access:https://www.frontiersin.org/articles/10.3389/feart.2024.1503934/full
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author Xiaolong Li
author_facet Xiaolong Li
author_sort Xiaolong Li
collection DOAJ
description Understanding the reorientation mechanism of near-wellbore hydraulic fractures is very important for optimizing parameters in field fracturing treatments. In this study, a fully 2D coupled seepage–stress model based on the extended finite element method (XFEM) model is applied to investigate the fracture trajectory and reorientation. The numerical model considering pore pressure is verified by a true triaxial laboratory experiment. The results show that the fracture is generally initiated from perforation and rotates to the direction of maximum horizontal stress with different curving distances. The fracture trajectory and reorientation distance can be influenced by the rock mechanics and fracturing application parameters, including elasticity modulus, Poisson’s ratio, tensile strength, perforation angle, horizontal stress difference, and injection rate. More exact behavior of fracture propagation can be described according to the parametric study. The results provided in this paper can be clearer in the prediction of the fracture trajectory and fracturing design in the near-wellbore region.
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spelling doaj-art-09e9bd05eb7941d4811140970a19aba42024-11-21T11:28:11ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632024-11-011210.3389/feart.2024.15039341503934Fracture reorientation mechanism during hydraulic fracturing based on XFEM simulationXiaolong LiUnderstanding the reorientation mechanism of near-wellbore hydraulic fractures is very important for optimizing parameters in field fracturing treatments. In this study, a fully 2D coupled seepage–stress model based on the extended finite element method (XFEM) model is applied to investigate the fracture trajectory and reorientation. The numerical model considering pore pressure is verified by a true triaxial laboratory experiment. The results show that the fracture is generally initiated from perforation and rotates to the direction of maximum horizontal stress with different curving distances. The fracture trajectory and reorientation distance can be influenced by the rock mechanics and fracturing application parameters, including elasticity modulus, Poisson’s ratio, tensile strength, perforation angle, horizontal stress difference, and injection rate. More exact behavior of fracture propagation can be described according to the parametric study. The results provided in this paper can be clearer in the prediction of the fracture trajectory and fracturing design in the near-wellbore region.https://www.frontiersin.org/articles/10.3389/feart.2024.1503934/fullreorientation mechanismseepage–stressfracture trajectoryextended finite element methodparametric studyreorientation distance
spellingShingle Xiaolong Li
Fracture reorientation mechanism during hydraulic fracturing based on XFEM simulation
Frontiers in Earth Science
reorientation mechanism
seepage–stress
fracture trajectory
extended finite element method
parametric study
reorientation distance
title Fracture reorientation mechanism during hydraulic fracturing based on XFEM simulation
title_full Fracture reorientation mechanism during hydraulic fracturing based on XFEM simulation
title_fullStr Fracture reorientation mechanism during hydraulic fracturing based on XFEM simulation
title_full_unstemmed Fracture reorientation mechanism during hydraulic fracturing based on XFEM simulation
title_short Fracture reorientation mechanism during hydraulic fracturing based on XFEM simulation
title_sort fracture reorientation mechanism during hydraulic fracturing based on xfem simulation
topic reorientation mechanism
seepage–stress
fracture trajectory
extended finite element method
parametric study
reorientation distance
url https://www.frontiersin.org/articles/10.3389/feart.2024.1503934/full
work_keys_str_mv AT xiaolongli fracturereorientationmechanismduringhydraulicfracturingbasedonxfemsimulation