☆ 4.7 Article

Potential of fixed-plane-perforation fracturing technique in enhanced geothermal system

APPLIED THERMAL ENGINEERING (2023)

Related references

Note: Only part of the references are listed.

Article Thermodynamics

Field study on cooling performance of a heat recovery ground source heat pump system coupled with thermally activated building systems (TABSs)

Rong Hu et al.

Summary: This study focuses on the cooling performance of a hybrid recovery ground source heat pump system coupled with thermally activated building systems (TABSs). The results show that the system improves its operation performance with the presence of a cooling tower, but the cooling tower is sensitive to the surrounding environment and causes more energy loss. In addition, increasing the cooling proportion of TABS increases the energy efficiency of the system and the building's cooling load, but the energy output of the energy system does not match the final demand.

ENERGY CONVERSION AND MANAGEMENT (2022)

Add to Collection

Article Energy & Fuels

Fracture spacing in horizontal well multi-perforation fracturing optimized by heat extraction

Xiaotian Wu et al.

Summary: This study establishes a three-dimensional hydraulic fracturing model to reveal the mechanisms of fracture initiation and propagation in multi-perforation fracturing. The study finds that the initiation pressure is higher in multi-perforation fracturing compared to single-perforation fracturing, and stress shadowing increases with time and decreasing FS.

GEOTHERMICS (2022)

Add to Collection

Article Green & Sustainable Science & Technology

Competition between cooling contraction and fluid overpressure on aperture evolution in a geothermal system

Fangchao Kang et al.

Summary: Comprehensive understanding of aperture evolution in HDR fracture is crucial for improving permeability in a geothermal system. Through coupled hydro-mechanical and thermohydro-mechanical simulations, we find that the competition between cooling contraction and fluid overpressure determines the fracture aperture, while factors such as fracture geometry, reservoir properties, and injection settings also play significant roles.

RENEWABLE ENERGY (2022)

Add to Collection

Article Energy & Fuels

Modeling study of the thermal-hydraulic-mechanical coupling process for EGS based on the framework of EDFM and XFEM

Tingyu Li et al.

Summary: In this paper, a combination of embedded discrete fracture model (EDFM) and extended finite element method (XFEM) is proposed to address the challenge of dense grids in thermal hydraulic-mechanical (THM) coupling simulations. By significantly reducing the grid number, the computational efficiency is improved while maintaining relatively high accuracy. The proposed model is validated by comparing it with analytical solutions and COMSOL, and is applied to analyze pressure, temperature, and displacement evolutions in hypothetical EGS scenarios.

GEOTHERMICS (2021)

Add to Collection

Article Geosciences, Multidisciplinary

Study on anisotropy of Longmaxi shale using hydraulic fracturing experiment

Hongyu Zhai et al.

Summary: Differentiated stress loading methods in hydraulic fracturing experiments can improve the mechanical properties of shale, enhance the anisotropy of Young's modulus, and accelerate the decrease in compressive strength in vertical bedding direction. Water-rock physical and chemical reactions may soften shale and reduce Young's modulus, with minimal impact on shale wave velocities but significant decrease in anisotropy characteristics. This study offers valuable data support for future research on the mechanical properties of Longmaxi shale rocks.

SCIENCE CHINA-EARTH SCIENCES (2021)

Add to Collection

Article Green & Sustainable Science & Technology

Experimental study on the physical and mechanical variations of hot granite under different cooling treatments

Fangchao Kang et al.

Summary: This study experimentally investigates the physical and mechanical variations of granite, a typical type of HDR, after different cooling treatments. The results show that liquid-nitrogen cooling treatment induces the most alterations in granite properties, leading to more intensive crack networks and higher permeability, especially for specimens heated to temperatures over 400 degrees C.

RENEWABLE ENERGY (2021)

Add to Collection

Article Energy & Fuels

Experimental near-wellbore hydraulic fracture initiation and growth for horizontal wells with in-plane perforations

Xian Shi et al.

Summary: Different fracture behaviors were studied in laboratory-scale hydraulic fracturing experiments on tight concrete samples with acoustic emission monitoring. The results showed that in-plane perforations can greatly reduce the breakdown pressure and create a simple fan-like structure, while helical perforations had a positive relationship between treatment parameters and breakdown pressure.

JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING (2021)

Add to Collection

Article Mechanics

Effect of thermal shock on laboratory hydraulic fracturing in Laizhou granite: An experimental study

Ning Li et al.

Summary: This study experimentally analyzed the effects of thermal shock on the fracture morphology and injection pressure curve in hydraulic fracturing of hot dry rock. Results showed the formation of a single main hydraulic fracture before 300 degrees C, followed by the potential creation of multiple branching fractures. Additionally, the height difference and tortuosity of the hydraulic fracture surface increased with higher thermal treatment temperatures.

ENGINEERING FRACTURE MECHANICS (2021)

Add to Collection

Article Green & Sustainable Science & Technology

Evaluation and optimization of heat extraction in enhanced geothermal system via failure area percentage

Xiaotian Wu et al.

Summary: This study aims to define a characteristic parameter for evaluating and optimizing geothermal extraction, and finds that fracture network complexity is the most sensitive factor affecting heat extraction.

RENEWABLE ENERGY (2021)

Add to Collection

Article Engineering, Geological

Modelling Rock Fracture Induced By Hydraulic Pulses

Xun Xi et al.

Summary: Soft cyclic hydraulic fracturing is an effective technology for subsurface energy extraction, inducing rock fatigue to reduce breakdown pressure and seismic risk. A numerical method is developed to model rock fracture induced by hydraulic pulses with consideration of rock fatigue. Experimental results validate the developed numerical model, showing that hydraulic pulses can reduce rock breakdown pressure by 10-18% upon 10-4000 cycles.

ROCK MECHANICS AND ROCK ENGINEERING (2021)

Add to Collection

Article Thermodynamics

The role of fracture networks randomness in thermal utilization of enhanced geothermal system

Jingxuan Xie et al.

Summary: This study uses supercritical carbon dioxide as the working fluid to establish three-dimensional fracture networks. It is found that the production performance is optimal when the fracture number is 200 and the fracture length is 100m.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2021)

Add to Collection

Article Engineering, Geological

Grain size heterogeneity controls strengthening to weakening of granite over high-temperature treatment

Fangchao Kang et al.

Summary: This study examined the physical and mechanical properties of granite specimens of different grain grades, finding that the heterogeneity of grain size affects the critical temperature and strength of granite. Nonuniform distribution of grain size leads to cracks induced by thermal expansion mismatch, which can impact the strength of granite. The findings help in predicting the strength of granite under various grain size distributions and thermal environments, which is crucial for the site location and design of deep geological repositories.

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2021)

Add to Collection

Article Green & Sustainable Science & Technology

Impacts of fracture network geometries on numerical simulation and performance prediction of enhanced geothermal systems

Gang Liu et al.

Summary: The distribution of fractures has a significant impact on the heat extraction performance of enhanced geothermal systems (EGS). Denser fracture networks can improve heat extraction efficiency, while non-uniform distribution of primary fractures may have negative effects on system performance.

RENEWABLE ENERGY (2021)

Add to Collection

Article Engineering, Geological

Modeling hydraulic fracturing in jointed shale formation with the use of fully coupled discrete element method

Chung-Yee Kwok et al.

ACTA GEOTECHNICA (2020)

Add to Collection

Article Green & Sustainable Science & Technology

Evaluation of geothermal energy extraction in Enhanced Geothermal System (EGS) with multiple fracturing horizontal wells (MFHW)

Facheng Gong et al.

RENEWABLE ENERGY (2020)

Add to Collection

Article Energy & Fuels

Numerical evaluation of hot dry rock reservoir through stimulation and heat extraction using a three-dimensional anisotropic coupled THM model

Jianxing Liao et al.

GEOTHERMICS (2020)

Add to Collection

Article Engineering, Geological

Thermal Effects on the Physical and Mechanical Properties and Fracture Initiation of Laizhou Granite During Hydraulic Fracturing

Ning Li et al.

ROCK MECHANICS AND ROCK ENGINEERING (2020)

Add to Collection

Article Thermodynamics

Study on the effect of well layout schemes and fracture parameters on the heat extraction performance of enhanced geothermal system in fractured reservoir

Yuanyuan Ma et al.

ENERGY (2020)

Add to Collection

Article Mechanics

Numerical investigation of the interaction between hydraulic fractures and natural fractures in porous media based on an enriched FEM

Yun Zhou et al.

ENGINEERING FRACTURE MECHANICS (2020)

Add to Collection

Article Computer Science, Interdisciplinary Applications

Effect of mechanical heterogeneity on hydraulic fracture propagation in unconventional gas reservoirs

Junpeng Zou et al.

COMPUTERS AND GEOTECHNICS (2020)

Add to Collection

Article Mechanics

Phase field modeling of hydraulic fracturing in porous media formation with natural fracture

Liang-Ping Yi et al.

ENGINEERING FRACTURE MECHANICS (2020)

Add to Collection

Article Green & Sustainable Science & Technology

Stratified rock hydraulic fracturing for enhanced geothermal system and fracture geometry evaluation via effective length

Likui Yu et al.

RENEWABLE ENERGY (2020)

Add to Collection

Article Green & Sustainable Science & Technology

Modified zipper fracturing in enhanced geothermal system reservoir and heat extraction optimization via orthogonal design

Likui Yu et al.

RENEWABLE ENERGY (2020)

Add to Collection

Article Energy & Fuels

Numerical modeling of hydraulic fracture propagation behaviors influenced by pre-existing injection and production wells

Qi Gao et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2019)

Add to Collection

Article Engineering, Geological

Optimization of the horizontal-well multiple hydraulic fracturing operation in a low-permeability carbonate reservoir using fully coupled XFEM model

Seyed Erfan Saberhosseini et al.

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2019)

Add to Collection

Article Thermodynamics

Research of fracture initiation and propagation in HDR fracturing under thermal stress from meso-damage perspective

Wei Zhang et al.

ENERGY (2019)

Add to Collection

Article Energy & Fuels

Analytical modelling of wettability alteration-induced micro-fractures during hydraulic fracturing in tight oil reservoirs

Yunhu Lu et al.

FUEL (2019)

Add to Collection

Article Green & Sustainable Science & Technology

An experimental investigation into the characteristics of hydraulic fracturing and fracture permeability after hydraulic fracturing in granite

Yanjun Zhang et al.

RENEWABLE ENERGY (2019)

Add to Collection

Article Green & Sustainable Science & Technology

Numerical study on heat extraction performance of a multilateral-well enhanced geothermal system considering complex hydraulic and natural fractures

Yu Shi et al.

RENEWABLE ENERGY (2019)

Add to Collection

Article Green & Sustainable Science & Technology

Study of the enhanced geothermal system (EGS) heat mining from variably fractured hot dry rock under thermal stress

Wei Zhang et al.

RENEWABLE ENERGY (2019)

Add to Collection

Article Mechanics

Pore pressure and stress coupling in closely-spaced hydraulic fracturing designs on adjacent horizontal wellbores

B. Sobhaniaragh et al.

EUROPEAN JOURNAL OF MECHANICS A-SOLIDS (2018)

Add to Collection

Article Energy & Fuels

Hydraulic fracturing under high temperature and pressure conditions with micro CT applications: Geothermal energy from hot dry rocks

W. G. P. Kumari et al.

FUEL (2018)

Add to Collection

Article Energy & Fuels

Numerical simulation of the heat extraction in 3D-EGS with thermal hydraulic-mechanical coupling method based on discrete fractures model

Jun Yao et al.

GEOTHERMICS (2018)

Add to Collection

Article Energy & Fuels

XFEM modeling of multistage hydraulic fracturing in anisotropic shale formations

Mao Sheng et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2018)

Add to Collection

Review Green & Sustainable Science & Technology

A global review of enhanced geothermal system (EGS)

Shyi-Min Lu

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2018)

Add to Collection

Article Engineering, Geological

Numerical Modeling of 3D Hydraulic Fractures Interaction in Complex Naturally Fractured Formations

Olga Kresse et al.

ROCK MECHANICS AND ROCK ENGINEERING (2018)

Add to Collection

Article Thermodynamics

Numerical simulation of the heat extraction in EGS with thermal-hydraulic-mechanical coupling method based on discrete fractures model

Zhi-xue Sun et al.

ENERGY (2017)

Add to Collection

Article Engineering, Geological

Modelling hydraulic fractures in porous media using flow cohesive interface elements

Vinh Phu Nguyen et al.

ENGINEERING GEOLOGY (2017)

Add to Collection

Article Energy & Fuels

Numerical simulation of simultaneous multiple fractures initiation in unconventional reservoirs through injection control of horizontal well

Chuang Liu et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2017)

Add to Collection

Article Computer Science, Interdisciplinary Applications

Numerical simulation of fracture path and nonlinear closure for simultaneous and sequential fracturing in a horizontal well

Wan Cheng et al.

COMPUTERS AND GEOTECHNICS (2017)

Add to Collection

Article Energy & Fuels

Initiation and propagation of fracture shearing during hydraulic stimulation in enhanced geothermal system

Linmao Xie et al.

GEOTHERMICS (2016)

Add to Collection

Article Thermodynamics

A novel thermal-hydraulic-mechanical model for the enhanced geothermal system heat extraction

Wenjiong Cao et al.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2016)

Add to Collection

Article Energy & Fuels

Comparison of consecutive and alternate hydraulic fracturing in horizontal wells using XFEM-based cohesive zone method

XiaoLong Wang et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2016)

Add to Collection

Article Energy & Fuels

Simulation of simultaneous propagation of multiple hydraulic fractures in horizontal wells

Jinzhou Zhao et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2016)

Add to Collection

Article Geosciences, Multidisciplinary

Numerical investigation of hydraulic fracture network propagation in naturally fractured shale formations

Yushi Zou et al.

JOURNAL OF STRUCTURAL GEOLOGY (2016)

Add to Collection

Article Chemistry, Physical

The Shear Mechanisms of Natural Fractures during the Hydraulic Stimulation of Shale Gas Reservoirs

Zhaobin Zhang et al.

MATERIALS (2016)

Add to Collection

Article Energy & Fuels

Numerical simulation of hydraulic fracturing in orthotropic formation based on the extended finite element method

XiaoLong Wang et al.

JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING (2016)

Add to Collection

Article Environmental Sciences

Investigation of a new HDR system with horizontal wells and multiple fractures using the coupled wellbore-reservoir simulator TOUGH2MP-WELL/EOS3

Mengting Li et al.

ENVIRONMENTAL EARTH SCIENCES (2015)

Add to Collection

Review Green & Sustainable Science & Technology

Current status and potentials of enhanced geothermal system in China: A review

Yuan Feng et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2014)

Add to Collection

Article Engineering, Multidisciplinary

Coupling schemes for modeling hydraulic fracture propagation using the XFEM

Elizaveta Gordeliy et al.

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING (2013)

Add to Collection

Article Computer Science, Interdisciplinary Applications

Numerical modeling of multiphase fluid flow in deforming porous media: A comparison between two- and three-phase models for seismic analysis of earth and rockfill dams

A. R. Khoei et al.

COMPUTERS AND GEOTECHNICS (2011)

Add to Collection

Article Materials Science, Composites

A Modified Benzeggagh-Kenane Fracture Criterion for Mixed-mode Delamination

Q. V. Bui

JOURNAL OF COMPOSITE MATERIALS (2011)

Add to Collection

Article Energy & Fuels

Three-dimensional finite element simulation and parametric study for horizontal well hydraulic fracture

G. M. Zhang et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2010)

Add to Collection

Article Energy & Fuels

The Experimental Investigation of Fracture Propagation Behavior and Fracture Geometry in Hydraulic Fracturing through Oriented Perforations

M. Chen et al.

PETROLEUM SCIENCE AND TECHNOLOGY (2010)

Add to Collection

© Peeref 2019-2024. All rights reserved.