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Simulating the hydraulic stimulation of multiple fractures in an anisotropic stress field applying the discrete element method

The current study investigates hydraulic fracture stimulation for an Enhanced Geothermal System (EGS) in a petrothermal environment to evaluate stress shadowing and fracture interaction in a multi-fracture setup. Previous studies investigated the geothermal potential of the area around Freiberg (Saxony, Germany), which is therefore used as a case example. The commercial discrete element code 3DEC™ is applied to conduct the numerical simulations. The simulation results show that hydraulic fracture stimulation results in a strong stress field alteration, which significantly influences the propagation of subsequently stimulated fractures. The resulting deflection of fractures can be minimized applying an optimized stimulation concept.

Simulating the hydraulic stimulation of multiple fractures in an anisotropic stress field applying the discrete element method   Conny Zeeba, Heinz Konietzkya aGeotechnical Institute, TU Bergakademie Freiberg, Gustav-Zeuner-Str. 1, 09599 Freiberg, Germany   Abstract The current  study  investigates  hydraulic  fracture  stimulation  for an Enhanced  Geothermal  System  (EGS)  in a petrothermal environment  to evaluate stress shadowing and

A Comprehensive Model for Real Gas Transport in Shale Formations with Complex Non-planar Fracture Networks

Case 1 is the simple planar hydraulic fracture; Case 2 is the non-planar hydraulic fracture; Case 3 is the simple planar natural fracture; Case 4 is the non-planar natural fracture; Case 5 is the simple planar natural fracture network; Case 6 is the non-planar natural fracture network.

A Comprehensive Model for Real Gas Transport in Shale Formations with Complex Non-planar Fracture Networks   Ruiyue Yang1, Zhongwei Huang1, Wei Yu2, Gensheng Li1, Wenxi Ren1, Lihua Zuo2, Xiaosi Tan2, Kamy Sepehrnoori3, Shouceng Tian1 & Mao Sheng1 1State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, P.R. China.

A Numerical Investigation of Fault Slip Triggered by Hydraulic Fracturing

The study of fault slip in response to fluid injection offers a means to understand the complex hydromechanical behavior of shale gas and oil reservoir systems during hydraulic fracturing operations, together with the induced seismicity, and corresponding mitigation measures, arising from such events. In this paper, a series of numerical simulations are performed to investigate the relationship between hydraulic fracturing (i.e. fluid injection) and the response of a naturally fractured rock mass to transient fluid pressures.

A Numerical Investigation of Fault Slip Triggered by Hydraulic Fracturing Neda Zangeneh, Erik Eberhardt, R. Marc  Bustin and Amanda Bustin University of British Columbia, Vancouver, British Columbia, Canada Abstract The study of fault slip in response to fluid injection offers a means to understand the complex hydromechanical behavior of shale gas and oil reservoir

Microseismic Imaging of Hydraulically Induced-Fractures in Gas Reservoirs: A Case Study in Barnett Shale Gas Reservoir, Texas, USA

Microseismic technology has been proven to be a practical approach for in-situ monitoring of fracture growth during hydraulic fracture stimulations. Microseismic monitoring has rapidly evolved in acquisition methodology, data processing, and in this paper, we evaluate the progression of this technology with emphasis on their applications in Barnett shale gas reservoir.

Microseismic Imaging of Hydraulically Induced-Fractures in Gas Reservoirs: A Case Study in Barnett Shale Gas Reservoir, Texas, USA   Abdulaziz M. Abdulaziz Mining, Petroleum, and Metallurgical Engineering Department, Faculty of Engineering, Cairo University, Giza, Egypt Abstract Microseismic technology has been proven to be a practical approach for in-situ monitoring of fracture growth during hydraulic fracture

Investigation of Fracturing Network Propagation in Random Naturally Fractured and Laminated Block Experiments

Researchers have recently realized that silty laminas are very developed in naturally fractured continental sedimentary formations in the Ordos Basin(China). Studies have shown that silty laminas are significant to improve the physical properties and gas storage capacity, and the natural fractures interact with the hydraulic fractures to maximize the fracture network during hydraulic fracturing.

Investigation of Fracturing Network Propagation in Random Naturally Fractured and Laminated Block Experiments Yu Wang, Xiao Li *, Jianming He, Zhiheng Zhao and Bo Zheng Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China Abstract: Researchers have recently realized that silty laminas are very

Selection of the optimal completion of horizontal wells with multi-stage hydraulic fracturing of the low-permeable formation, field C

Selection of the optimal completion of horizontal wells with multi-stage hydraulic fracturing of the low-permeable formation

Selection of the optimal completion of horizontal wells with multi-stage hydraulic fracturing of the low-permeable formation, field C Author: A.M. Bozoev1 and E.A. Demidova2 1-Gazpromneft Muravlenko, Muravlenko, Russia, 2-Tomsk Polytechnic University, Tomsk, Russia Abstract At  the  moment,  many  fields  of  Western  Siberia  are  in  the  later  stages  of development. In this regard, the multilayer

Numerical simulation of hydraulic fracturing and associated microseismicity using finite-discrete element method

Hydraulic fracturing (HF) technique has been extensively used for the exploitation of unconventional oil and gas reservoirs. HF enhances the connectivity of less permeable oil and gas-bearing rock formations by fluid injection, which creates an interconnected fracture network and increases the hydrocarbon production.

Numerical simulation of hydraulic fracturing and associated microseismicity using finite-discrete element method Qi Zhaoa, Andrea Lisjakb, Omid Mahabadib, Qinya Liuc, Giovanni Grassellia a-Department of Civil Engineering, University of Toronto, Toronto, ON, Canada. b-Geomechanica Inc., Toronto, ON, Canada. c-Department of Physics, University of Toronto, Toronto, ON, Canada Abstract Hydraulic fracturing (HF) technique has been extensively

Application of the fractal geometry theory on fracture network simulation

Comparing with other simulation models, the fractal fracture could not only maintain the bifurcation of the fracture geometry but also represent the multi-level feature of the complex fracture networks according to its fractal characteristics.

Application of the fractal geometry  theory on fracture network simulation Zhiwei Zhou, Yuliang Su, Wendong Wang and Yi Yan China University of Petroleum(East), No. 66, Changjiang West Road, Huangdao District, Qingdao 266580, China   Abstract In this paper, we introduce an L-system based on the fractal geometry to study complex fracture networks. Comparing with other

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