Hydraulic fracturing in unconventional shale gas reservoirs. Dr.-Ing. Johannes Will, Dynardo GmbH, Weimar, Germany
|
|
- Domenic Glenn
- 6 years ago
- Views:
Transcription
1 Hydraulic fracturing in unconventional shale gas reservoirs Dr.-Ing. Johannes Will, Dynardo GmbH, Weimar, Germany
2 Founded: 2001 (Will, Bucher, CADFEM International) More than 35 employees, offices at Weimar and Vienna Leading technology companies Daimler, Bosch, Eon, Nokia, Siemens, BMW are supported by us Software Development Dynardo is your engineering specialist for CAE-based sensitivity analysis, optimization, robustness evaluation and robust design optimization. CAE-Consulting Our expertise: Mechanical engineering Civil engineering & Geomechanics Automotive industry Consumer goods industry Energy Industry 2 Simulation of Hydraulic Fracturing
3 Hydraulic fracturing To mine unconventional shale gas stimulation of the reservoir rock becomes necessary for a profitable gas production Hydraulic fracturing is used to create a large and complex network of fractures which connects the production wells with the greatest possible volume of reservoir rocks - Horizontal well driven in the reservoir layer. - Water pressure is fracturing (enhancing natural and create new fracture) the jointed rock. - Proppant is added to keep fractures open after fluids have been removed and pressure has been subsided. 3 Simulation of Hydraulic Fracturing
4 Simulation of hydraulic fracturing of jointed rock Dr.-Ing. Johannes Will, Dynardo GmbH, Weimar, Germany
5 Challenge of modeling hydraulic fracturing Shale is a jointed rock Because of bedding plane and natural fracture system anisotropic strength behavior dominate fracture growth Fracture network dominates fluid flow Therefore 3D geometric model including strength anisotropies and fracture flow approach is mandatory Isotropic mechanical material models will fail 2D or pseudo 3D modeling will fail Porous flow approach inadequat Rock mechanical challenge or the question: Discrete or smeared modeling of joints Discrete joint modeling in 3D result in computational and parameter overkill Therefore homogenized continuum approach for seepage flow in jointed rock which was established for 3D FEM simulation in jointed rock in dam engineering in 1980 /90 s is the method of choice 5 Simulation of Hydraulic Fracturing
6 homogenized continuum approach mechanics Homogenized continuum approach does not model joints discrete. Jointed rock will be modelled as volume having intact rock and sets of strength anisotropies (joints). Matrix and joints will be evaluated at every discretization point! Major fault Sets of joints: K1, K2, Sch (picture from Wittke, W.: Rock Mechanics, Theory and Application with Case Histories, ISBN/EAN: But major faults will be modelled discrete with a layer of volume elements, having plane of weakness and matrix material. 6 Simulation of Hydraulic Fracturing
7 Mechanical analysis Mechanical analysis For nonlinear mechanical analysis material model from multiplas based on anisotropic Mohr-Coulomb or Drucker Prager model are used. Consistent numerical treatment of multisurface plasticity describes failure of intact rock and 3 joints. In multiplas the joint orientation is defined by a plane x -y in local coordinate system, which is related to global (WCS) by two orientation angles alpha and beta. 7 Simulation of Hydraulic Fracturing
8 Hydraulic analysis Flow is dominated by laminar flow in joints. Homogenized fluid flow approach superpose intact (porous) rock with fluid flow in joints, resulting in anisotropic conductivity matrix K flow equation (mass balance): q R S h t s Darcy s law (momentum balance): q K h transient seepage equation: K x xx h x K y yy h y K z zz h z R S s h t 8
9 3D-hydraulic fracturing simulator - 3D simulations of hydraulic fracturing based on coupled hydraulic mechanical FEM analysis using ANSYS+multiPlas was setup + 9
10 Application of Hydraulic Fracturing Analysis Barnett Shale, Texas, US 2008/2009 calculate and calibrate jointed rock volume as well as related gas production
11 Analysis Plan 1) Setting up a three dimensional layered model which can represent - all important layers including a three dimensional joint systems (bedding plane + two joint sets) - coupled fluid flow mechanical analysis, including propagation of fractures 2) Calibration of important model parameters with measurements (DFIT/ISIP, seismic fracture measurements) 3) Using the calibrated model for sensitivity analysis and optimization of operational conditions [Will J.: Optimizing of hydraulic fracturing procedure using numerical simulation; Proceedings Weimarer Optimierung- und Stochastiktage 7.0, 2010, Weimar, Germany, 11 Simulation of Hydraulic Fracturing
12 Collecting Jointed Rock Properties Rock properties are extracted from core and log data as well as they are assumed from experience and literature. More than 200 parameters: Geometry, layering Elastic properties of rock and joints Strength properties of rock and joints Permeability In-situ stress and pore pressure Joint system orientation Marble Falls Shale Marble Falls Limestone Barnett Shale A Barnett Shale B Barnett Shale C 3 rd joint 170/80 joint for all rock units Barnett Shale D Ellenburger 12 Simulation of Hydraulic Fracturing
13 Simulation of Hydraulic Fracturing Parametric model setup and calibration
14 Parametric one well model and mesh Parametric model geometry and mesh generation N reference points [XX3,YY3] [XX5,YY5] ST4 ST3 Well position ST5 Stage 3 with 4 perforations [XX6,YY6] ST
15 in situ stress and pore pressure state effective vertical stress - SZ hydraulic height Calculation of initial situ stress state: The initialization of the in-situ stress condition is very important The different layers have different stiffness and in-situ stress states Non-linear mechanical analysis for every layer necessary Calculation of initial pore pressure: All nodes get hydraulic height as boundary condition: H = z g pp / g w H hydraulic height z node z coordinate g pp pore pressure gradient (over pressured) g w pore pressure gradient (water) 15 ECF 18 Simulation of Hydraulic Fracturing
16 Coupled mechanical and fluid flow analysis Mechanical Analysis of Fracture Growth Mechanical analysis: coupling non linear time history analysis Starting from in-situ stress state, forces from the updated pore pressure field are effecting the stress field if effective stresses violate strength criteria plastic strain (fracture growth) occurs Fluid Flow Analysis to update Pore Pressure Frontier Transient hydraulic analysis: Nodes at perforations get hydraulic height according to the bottom hole pressure of the hydraulic fracturing regime Coupling of hydraulic and mechanic analysis via updated anisotropic permeability matrix 16 ECF 18 Simulation of Hydraulic Fracturing
17 3D-hydraulic fracturing simulator Input parameters Schematics of 3D coupled hydraulic-mechanical simulation FE-model Initial pore pressure Initial effective stresses Conductivity update Main loop Transient hydraulic analysis Mechanical analysis Flow force update Outputs/results 17 Simulation of Hydraulic Fracturing
18 Hydraulic Fracturing needs calibration Because of the large amount of uncertain jointed rock and reservoir parameter the reservoir model needs advanced calibration procedure. Sensitivity, Calibration & Optimization Calibrator Optimizer 3D-hydraulic fracturing simulator FEA Solver 18 Simulation of Hydraulic Fracturing
19 Model Calibration Calibration At first, numerical key parameters such as the maximum permeability of open joints or energy dissipation at pore pressure frontier are calibrated. Then with the help of optislang, a sensitivity study of 200 physical parameters is performed to identify the most important parameters. The mechanisms of important parameters are validated and the model is calibrated to the measurements. The calibrated model is later used to optimize the stimulated volume and to predict the gas production rate of the wells. 19 Simulation of Hydraulic Fracturing Blue:Stimulated rock volume Red: seismic frac measurement
20 Modeling of Hydraulic Fracturing Using the Calibrated Model for Prediction and Optimization
21 Calculation of Gas Production From the calibrated model of one stage we derive a shape factor between measurement data (maximum width*length*height) and 3D volume from our simulator. Can we use the shape factor for all stages? 21 Simulation of Hydraulic Fracturing
22 Calculation of Gas Production Using the shape factor of stage 1, we estimated the total volume of all 5 stages. Using field correlation data between stimulated volume and gas production, we estimated the gas production. real production FM_estimated dynardo Calibration well MMscf That was a positive result that the estimation of total gas production is very good using the shape factor! But can the shape factor be used to forecast the neighboring well? 22 Simulation of Hydraulic Fracturing
23 Forecast of Gas Production Forecast well is located 0,5 mile south of calibration well Forecast well used 6 active stages Stimulated volume of the two wells cross Calibration well Forecast well 23 Simulation of Hydraulic Fracturing
24 Forecast of Gas Production Seismic fracturing measurement estimated the total stimulated Barnett Shale volume to 266 e6 ft 3 and the 6 month cumulative gas production is estimated to 71.5 MMscf. Using fracture mapping results of maximum width, length and height as well our body shape factor of 4.0 we estimate the stimulated volume to 103 e6 ft 3 and 6 month cumulative Gas production of 27.5 MMscf real production FM_estimated dynardo Calibration well MMscf Forecast well MMscf The estimation of stimulated Barnett Rock volume with the shape factor shows again a very nice agreement with the real 6 month gas production. 24 Simulation of Hydraulic Fracturing
25 Optimization of Gas Production By improving just one fracture design parameter, the stimulated volume (and the gas production) could improve by 25%. initial design stage1 Barnett Volume=24.2 e6 Improved frac design Barnett Volume=30.2 e6 Pressured volume at 193 min (end of pressuring) 25 Simulation of Hydraulic Fracturing
26 Application of Hydraulic Fracturing Analysis other Reservoirs, US 2010/2011 calculate and calibrate joint network creation including stage and well interaction
27 Simulator improvements 2010 calculate and calibrate jointed set opening, investigate stage interaction and sensitivities of reservoir and hydraulic fracturing design parameter During 2010 following improvements are implemented: - Parametric model of multiple stages - Improvement of hydro mechanical coupling, calculation of joint set openings and related anisotropic conductivity updates - Introduction of influence of Joint Roughness Coefficient (JRC) and ratio of geometric and effective hydraulic opening to fluid flow in fractures - Introduction of parametric perforation efficiency - the overlapping of stimulated rock volumes is investigated and overlapping factors are derived 27 Simulation of Hydraulic Fracturing
28 Simulator improvements 2010 Visualization of geometric joint set openings normal to joint plane 1 st joint bedding plane 2 nd joint set 3 rd joint set joint set openings [in] 28 Simulation of Hydraulic Fracturing
29 Simulator improvements 2011 Industrial projects (short term) - Improvement of parametric to model and calculate multiple stages at multiple well to investigate well interaction and re-stimulation - Introduction of dilatancy functions and non local material models to improve accuracy of permeability update Funded projects (mid term) - Speed up simulation process and minimize memory requirements - Extraction of most probable network of joints, export network to reservoir simulators and CFD codes - Implementation of stress dependent conductivity decline to run flow back and production 29 Simulation of Hydraulic Fracturing
30 Model and Mesh FE-model Mesh for hydraulic analysis 1 to 8 approach 8x finer mesh of mechanical model mesh of hydraulic model Hydraulic mesh needs to be finer to cover fracture discretization, one element in mechanical mesh covers 8 elements in the hydraulic model, but every fluid element needs 5 elements to introduce anisotropic conductivity matrix 30 Simulation of Hydraulic Fracturing
31 User defined anisotropic hydraulic element Transient hydraulic analysis Motivation / current state rock with four joints is represented by five SOLID70 elements, with identical nodes one element for intact rock defined in global coordinate system each joint is represented by one element defined in joint coordinate system anisotropy is obtained by rotation of the element contributions in the global assembling procedure total hydraulic conductivity k k k xx xy xz k k k xy yy yz k k k xz yz zz hydr. conductivity intact rock k 0 0 R 0 k = R kr hydr. conductivity joint 1 kj k 0 J hydr. conductivity joint 2 kj k 0 J y y 1, 1 2, 2 x x Problems high numerical effort and high memory demand (up to five super-imposed elements are used) during simulation special mesh generation procedures required for the generation of the super-imposed elements and handling of the element properties (e.g. local element coordinate systems) post-processing is difficult due to super-imposed SOLID70-elements (special post-processing procedures required time-consuming) Solution New hydraulic element with general anisotropic conductivity 31 Simulation of Hydraulic Fracturing
32 User defined anisotropic hydraulic element Transient hydraulic analysis Element definition implementation of a new element using ANSYS user-defined element API (USER300) 8 node, isoparametric brick element one degree of freedom per node: hydraulic height fully integrated (2x2x2 Gauss quadrature) ansiotropic hydraulic conductivity matrix support for lumped storativity matrix element body load: internal flow generation rate Performance one stage structured mesh, PC 2 proc mechanical elements fluid elements new old reduction simulation + post processing 41 hours 53,5 hours 24% memory requirements 9 GB 19 GB 47% Get ready for HPC environment running multiple stages at multiple wells 32 Simulation of Hydraulic Fracturing
33 New hydraulic element testing and performance new old Pore pressure Joint opening 33 Simulation of Hydraulic Fracturing
34 Please visit our homepage and contact us for more information! Simulation of Hydraulic Fracturing
Optimization of Hydrocarbon Production from Unconventional Shale Reservoirs using FEM based fracture simulation. Lectures. J. Will, St.
Lectures Optimization of Hydrocarbon Production from Unconventional Shale Reservoirs using FEM based fracture simulation J. Will, St. Eckardt presented at the Weimar Optimization and Stochastic Days 2016
More informationIf your model can t do this, why run it?
FRACTURE MODEL DESIGN MODEL REQUIREMENTS Describe/Include the basic physics of all important processes Ability to predict (not just mimic) job results Provide decision making capability Understand what
More informationParameter identification of damage parameters of LS-DYNA GURSON material model from a tensile test. Lectures. Johannes Will
Lectures Parameter identification of damage parameters of LS-DYNA GURSON material model from a tensile test Johannes Will presented at the Weimar Optimization and Stochastic Days 2009 Source: www.dynardo.de/en/library
More informationRecent Developments for Random Fields and Statistics on Structures. Lectures. Sebastian Wolff, Christian Bucher
Lectures Recent Developments for Random Fields and Statistics on Structures Sebastian Wolff, Christian Bucher presented at the Weimar Optimization and Stochastic Days 2012 Source: www.dynardo.de/en/library
More informationractical Geomechanics for Unconventional Resources
P ractical Geomechanics for Unconventional Resources 24-26 October 2012, Calgary, Canada Practical Geomechanics for Unconventional Resources Nowadays, unconventional resources have been brought into the
More informationJihoon Kim, George J. Moridis, John Edmiston, Evan S. Um, Ernest Majer. Earth Sciences Division, Lawrence Berkeley National Laboratory 24 Mar.
TOUGH+ROCMECH for the Analysis of coupled Flow, Thermal, Geomechanical and Geophysical Processes Code Description and Applications to Tight/Shale Gas Problems Jihoon Kim, George J. Moridis, John Edmiston,
More informationEDEM DISCRETIZATION (Phase II) Normal Direction Structure Idealization Tangential Direction Pore spring Contact spring SPRING TYPES Inner edge Inner d
Institute of Industrial Science, University of Tokyo Bulletin of ERS, No. 48 (5) A TWO-PHASE SIMPLIFIED COLLAPSE ANALYSIS OF RC BUILDINGS PHASE : SPRING NETWORK PHASE Shanthanu RAJASEKHARAN, Muneyoshi
More informationCREATION OF A FIELD META MODEL ON THE BASIS OF ELECTRO-THERMAL- MECHANICAL FEM SIMULATIONS
Creation of a field meta model on the basis of CREATION OF A FIELD META electro-thermal-mechanical FEM simulations MODEL ON THE BASIS OF ELECTRO-THERMAL- MECHANICAL FEM SIMULATIONS Robert Bosch GmbH: Dynardo
More informationEnabling Technologies
Enabling Technologies Mechanical Modelling 1 Key Parameter Mineral System Exploration is reflected in scale-dependent translation A. Gradient in hydraulic potential B. Permeability C. Solubility sensitivity
More informationNumerical Analysis on the Interaction between Two Zipper Frac Wells with Continuum Damage Model
Copyright 2013 Tech Science Press SL, vol.9, no.1, pp.1-22, 2013 Numerical Analysis on the Interaction between Two Zipper Frac Wells with Continuum Damage Model Xinpu Shen 1 Abstract: Zipper fracturing
More informationGas Shale Hydraulic Fracturing, Enhancement. Ahmad Ghassemi
Gas Shale Hydraulic Fracturing, Stimulated Volume and Permeability Enhancement Ahmad Ghassemi Tight Gas A reservoir that cannot produce gas in economic quantities without massive fracture stimulation treatments
More informationA Constitutive Framework for the Numerical Analysis of Organic Soils and Directionally Dependent Materials
Dublin, October 2010 A Constitutive Framework for the Numerical Analysis of Organic Soils and Directionally Dependent Materials FracMan Technology Group Dr Mark Cottrell Presentation Outline Some Physical
More informationA Better Modeling Approach for Hydraulic Fractures in Unconventional Reservoirs
A Better Modeling Approach for Hydraulic Fractures in Unconventional Reservoirs OUTLINE Numerical Simulation: Comparison of Conventional and NEW Approaches NEW Approach as a Modeling Tool (understanding
More informationEffect Of The In-Situ Stress Field On Casing Failure *
Effect Of The In-Situ Stress Field On Casing Failure * Tang Bo Southwest Petroleum Institute, People's Republic of China Lian Zhanghua Southwest Petroleum Institute, People's Republic of China Abstract
More informationractical Geomechanics for Oil & Gas Industry
P ractical Geomechanics for Oil & Gas Industry Practical Geomechanics for Oil and Gas Industry The integrity of the wellbore plays an important role in petroleum operations including drilling, completion
More informationRobustness Evaluations for CAE-based Virtual Prototyping of Automotive Applications. Lectures. Johannes Will
Lectures Robustness Evaluations for CAE-based Virtual Prototyping of Automotive Applications Johannes Will presented at the ECCOMAS Conference 2012 Source: www.dynardo.de/en/library European Congress on
More informationI hereby declare that, except where specifically indicated, the work submitted herein is my own original work.
Finite Element Studies on the Mechanical Stability of Arbitrarily Oriented and Inclined Wellbores Using a Vertical 3D Wellbore Model by Di Zien Low (F) Fourth-Year Undergraduate Project in Group D, 2010/2011
More informationSPE Comparison of Numerical vs Analytical Models for EUR Calculation and Optimization in Unconventional Reservoirs
SPE-180209 Comparison of Numerical vs Analytical Models for EUR Calculation and Optimization in Unconventional Reservoirs A. Moinfar, J.C. Erdle, K. Patel, Computer Modelling Group Inc. Motivation Analytical
More informationMicroseismic Monitoring Shale Gas Plays: Advances in the Understanding of Hydraulic Fracturing 20 MAR 16 HANNAH CHITTENDEN
Microseismic Monitoring Shale Gas Plays: Advances in the Understanding of Hydraulic Fracturing 20 MAR 16 HANNAH CHITTENDEN Introduction Early days: Microseismic monitoring has been around since the early
More informationGeomechanics for reservoir and beyond Examples of faults impact on fluid migration. Laurent Langhi Team Leader August 2014
Geomechanics for reservoir and beyond Examples of faults impact on fluid migration Laurent Langhi Team Leader August 2014 Reservoir Geomechanics It is critical to understand the mechanical behaviour of
More informationRole of lithological layering on spatial variation of natural and induced fractures in hydraulic fracture stimulation
Role of lithological layering on spatial variation of natural and induced fractures in hydraulic fracture stimulation Vincent Roche *, Department of Physics, University of Alberta, Edmonton roche@ualberta.ca
More informationFinite Element Method in Geotechnical Engineering
Finite Element Method in Geotechnical Engineering Short Course on + Dynamics Boulder, Colorado January 5-8, 2004 Stein Sture Professor of Civil Engineering University of Colorado at Boulder Contents Steps
More informationGeomechanics, Anisotropy and LMR
Geomechanics, Anisotropy and LMR Marco Perez *, Apache Canada Ltd, Calgary, AB, Canada marco.perez@apachecorp.com Bill Goodway, Apache Canada Ltd, Calgary, AB, Canada bill.goodway@apachecorp.com David
More informationPre- and Post-Fracturing Analysis of a Hydraulically Stimulated Reservoir
ARMA 18 503 Pre- and Post-Fracturing Analysis of a Hydraulically Stimulated Reservoir Erfan Sarvaramini Department of Civil and environmental Engineering, University of Waterloo, Waterloo, ON, Canada Robert
More information2015 Training Course Offerings
2015 Training Course Offerings OilField Geomechanics offers a wide-range of the geomechanics-related training including: 1) Geomechanics for Unconventional Plays; 2) Basic Geomechanics for the Oilfield;
More informationMicroseismic Geomechanical Modelling of Asymmetric Upper Montney Hydraulic Fractures
Microseismic Geomechanical Modelling of Asymmetric Upper Montney Hydraulic Fractures Drew Chorney, Byungtark Lee, Shawn Maxwell (IMaGE) Summary Geomechanical modelling is a powerful tool to quantitatively
More informationPractical methodology for inclusion of uplift and pore pressures in analysis of concrete dams
Practical methodology for inclusion of uplift and pore pressures in analysis of concrete dams Michael McKay 1 and Francisco Lopez 2 1 Dams Engineer, GHD Pty 2 Principal Dams/Structural Engineer, GHD Pty
More informationDiscrete Element Modeling of Thermo-Hydro-Mechanical Coupling in Enhanced Geothermal Reservoirs
PROCEEDINGS, Thirty-Eighth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California Discrete Element Modeling of Thermo-Hydro-Mechanical Coupling in Enhanced Geothermal Reservoirs
More informationUSING SENSITIVITY ANALYSIS AND OPTIMIZATION FOR CIVIL ENGINEERING AND GEOTECHNICAL APPLICATIONS
MINERIT & GEOMECANICĂ USING SENSITIVITY ANALYSIS AND OPTIMIZATION FOR CIVIL ENGINEERING AND GEOTECHNICAL APPLICATIONS R. Schlegel, Dr., J. Will, Dr. Dynardo GmbH, Weimar, Germany H. Konietzky, Prof. Dr.-Ing.
More informationConsiderations for Infill Well Development in Low Permeability Reservoirs
Considerations for Infill Well Development in Low Permeability Reservoirs George Waters Technical Manager Unconventional Completions September 9, 2014 Topics Continuous Improvement in Field Development
More informationWhat Microseismicity Tells Us About Re-fracturing An Engineering Approach to Re-fracturing Design
What Microseismicity Tells Us About Re-fracturing An Engineering Approach to Re-fracturing Design Alireza Agharazi, Sudhendu Kashikar MicroSeismic, Inc. ABSTRACT: Microseismic monitoring of re-fracturing
More informationReservoir Geomechanics and Faults
Reservoir Geomechanics and Faults Dr David McNamara National University of Ireland, Galway david.d.mcnamara@nuigalway.ie @mcnamadd What is a Geological Structure? Geological structures include fractures
More informationand a contribution from Offshore Europe
Primary funding is provided by The SPE Foundation through member donations and a contribution from Offshore Europe The Society is grateful to those companies that allow their professionals to serve as
More information3D HM-DEM model for Hydro-Fracturing
3D HM-DEM model for Hydro-Fracturing E. Papachristos, F.V. Donzé & B. Chareyre Laboratoire Sols, Solides, Structures, Grenoble, France efthymios.papachristos@3sr-grenoble.fr,, frederic.donze@3srgrenoble.fr,
More informationA Better Modeling Approach for Hydraulic Fractures in Unconventional Reservoirs
A Better Modeling Approach for Hydraulic Fractures in Unconventional Reservoirs OUTLINE Numerical Simulation: Comparison of Conventional and NEW Approaches NEW Approach as a Modeling Tool (understanding
More informationA THREE-DIMENSIONAL STOCHASTIC FRACTURE NETWORK MODEL FOR GEOTHERMAL RESERVOIR STIMULATION
PROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 31 - February 2, 2011 SGP-TR-191 A THREE-DIMENSIONAL STOCHASTIC FRACTURE NETWORK
More informationAbstracts ESG Solutions
Abstracts ESG Solutions 2015-2016 For more information, please contact Melissa Hoy, Technical Marketing Coordinator at melissa.hoy@esgsolutions.com Visit us online at www.esgsolutions.com Abstract #1 Fracture
More informationFault Reactivation Predictions: Why Getting the In-situ Stresses Right Matters
Fault Reactivation Predictions: Why Getting the In-situ Stresses Right Matters Pat McLellan, M.Sc., P.Eng. Principal Consultant McLellan Energy Advisors Inc. Calgary, Alberta May 8, 2015 Presented at the
More informationShale Gas Reservoir Simulation in Eclipse
PNG 512- Project Report Shale Gas Reservoir Simulation in Eclipse Submitted By: Priyank Srivastava Thought by: Dr. Turgay Ertekin Spring-2017 Model Description From Given Eclipse File Reservoir dimensions
More informationBifurcation Analysis in Geomechanics
Bifurcation Analysis in Geomechanics I. VARDOULAKIS Department of Engineering Science National Technical University of Athens Greece and J. SULEM Centre d'enseignement et de Recherche en Mecanique des
More informationRelease Notes Digimat 6.0.1
Release Notes Digimat 6.0.1 May 2015 p. 2 p. 3 p.4 p. 6 p. 7 p. 9 - p.10 1 P a g e C o p y r i g h t M S C S o f t w a r e B e l g i u m, 2015 New Capabilities Failure indicators o Temperature dependent
More informationIn situ fracturing mechanics stress measurements to improve underground quarry stability analyses
In situ fracturing mechanics stress measurements to improve underground quarry stability analyses Anna M. Ferrero, Maria R. Migliazza, Andrea Segalini University of Parma, Italy Gian P. Giani University
More informationMaximize the potential of seismic data in shale exploration and production Examples from the Barnett shale and the Eagle Ford shale
Maximize the potential of seismic data in shale exploration and production Examples from the Barnett shale and the Eagle Ford shale Joanne Wang, Paradigm Duane Dopkin, Paradigm Summary To improve the success
More informationIn all of the following equations, is the coefficient of permeability in the x direction, and is the hydraulic head.
Groundwater Seepage 1 Groundwater Seepage Simplified Steady State Fluid Flow The finite element method can be used to model both steady state and transient groundwater flow, and it has been used to incorporate
More informationA NEW SIMPLIFIED AND EFFICIENT TECHNIQUE FOR FRACTURE BEHAVIOR ANALYSIS OF CONCRETE STRUCTURES
Fracture Mechanics of Concrete Structures Proceedings FRAMCOS-3 AEDFCATO Publishers, D-79104 Freiburg, Germany A NEW SMPLFED AND EFFCENT TECHNQUE FOR FRACTURE BEHAVOR ANALYSS OF CONCRETE STRUCTURES K.
More informationTechnology of Production from Shale
Technology of Production from Shale Doug Bentley, European Unconventional, Schlumberger May 29 th, 2012 Johannesburg, South Africa What are Unconventional Reservoirs Shale both Gas & Oil Coal Bed Methane
More informationThe Interaction of Reservoir Engineering and Geomechanics (a story)
The Interaction of Reservoir Engineering and Geomechanics (a story) Brian G D Smart FREng, FRSE, FIMMM, CEng Petromall Ltd Why is the interaction a good thing? Assertion - Reservoir Geomechanics enables
More informationTheoretical Manual Theoretical background to the Strand7 finite element analysis system
Theoretical Manual Theoretical background to the Strand7 finite element analysis system Edition 1 January 2005 Strand7 Release 2.3 2004-2005 Strand7 Pty Limited All rights reserved Contents Preface Chapter
More informationUnderstanding hydraulic fracture variability through a penny shaped crack model for pre-rupture faults
Penny shaped crack model for pre-rupture faults Understanding hydraulic fracture variability through a penny shaped crack model for pre-rupture faults David Cho, Gary F. Margrave, Shawn Maxwell and Mark
More informationKeys to Successful Multi-Fractured Horizontal Wells In Tight and Unconventional Reservoirs
Keys to Successful Multi-Fractured Horizontal Wells In Tight and Unconventional Reservoirs Presented by: Larry K. Britt NSI Fracturing & Britt Rock Mechanics Laboratory Key Questions for Horizontal Success
More informationAnalysis of the THM-behaviour of Callovo-Oxfordian Claystone due to Heating by Applying Statistical Methods for Rock Parameter Identification
Analysis of the THM-behaviour of Callovo-Oxfordian Claystone due to Heating by Applying Statistical Methods for Roc Parameter Identification Jobmann M 1. Li S 1. Polster M 1. Breustedt M. 1 Schlegel R
More informationAdvanced Geotechnical Simulations with OpenSees Framework
Advanced Geotechnical Simulations with OpenSees Framework Boris Jeremić Department of Civil and Environmental Engineering University of California, Davis OpenSees Developer Symposium, RFS, August 26 http://sokocalo.engr.ucdavis.edu/
More informationMITIGATE RISK, ENHANCE RECOVERY Seismically-Constrained Multivariate Analysis Optimizes Development, Increases EUR in Unconventional Plays
White Paper MITIGATE RISK, ENHANCE RECOVERY Seismically-Constrained Multivariate Analysis Optimizes Development, Increases EUR in Unconventional Plays SM Seismically-Constrained Multivariate Analysis Optimizes
More informationInvestigating the Barnett Shale
Investigating the Barnett Shale An Integrated Workflow from Petrophysics to Visualisation and Seismic Decomposition Vision for Energy The Barnett Shale 1981: Barnett Shale discovery 8,000+ wells to date
More informationFrom Micro to Macro: Application of a Geomechanically Calibrated, Seismically Constrained Reservoir Model to Unconventional Resource Development
13-14 June 2017 The Woodlands, Texas, USA The Woodlands Resort From Micro to Macro: Application of a Geomechanically Calibrated, Seismically Constrained Reservoir Model to Unconventional Resource Development
More informationSPE DISTINGUISHED LECTURER SERIES is funded principally through a grant of the SPE FOUNDATION
SPE DISTINGUISHED LECTURER SERIES is funded principally through a grant of the SPE FOUNDATION The Society gratefully acknowledges those companies that support the program by allowing their professionals
More informationProduction-induced stress change in and above a reservoir pierced by two salt domes: A geomechanical model and its applications
Production-induced stress change in and above a reservoir pierced by two salt domes: A geomechanical model and its applications Peter Schutjens, Jeroen Snippe, Hassan Mahani, Jane Turner, Joel Ita and
More informationWhat Can Microseismic Tell Us About Hydraulic Fracturing?
What Can Microseismic Tell Us About Hydraulic Fracturing? Shawn Maxwell May 2015 Microseismic Geomechanics: Increased understanding; reduced risk 1 Outline Microseismic Introduction Microseismic in Unconventional
More informationEarth dam steady state seepage analysis
Engineering manual No. 32 Updated 3/2018 Earth dam steady state seepage analysis Program: FEM Water Flow File: Demo_manual_32.gmk Introduction This example illustrates an application of the GEO5 FEM module
More informationEDEM-Easy5/ADAMS Co-simulation of Particle-Structure Interaction Dr John Favier DEM Solutions Ltd
EDEM-Easy5/ADAMS Co-simulation of Particle-Structure Interaction Dr John Favier DEM Solutions Ltd MSC.Software VPD Conference 2007 1 1 Outline DEM Solutions profile Why use Discrete Element Modelling (DEM)?
More informationDefmod, an earthquake simulator that adaptively switches between quasi-static and dynamic states
Defmod, an earthquake simulator that adaptively switches between quasi-static and dynamic states C. Meng (cmeng@mit.edu) B. Hager ERL, MIT May 16, 2016 Reservoir production/injection induced seismicity
More informationUniversity of Colorado, Dept. of Civil Engineering Boulder CO
EFFECT OF GEOLOGY ON UPLIFT AND DAM STABILITY B. Amadei, C. Dialer, C. chinnaswarny T. Illangasekare University of Colorado, Dept. of Civil Engineering Boulder CO 80309-0428 INTRODUCTION Geology and water
More informationHalliburton Engineering for Success in Developing Shale Assets
Halliburton Engineering for Success in Developing Shale Assets Nov 30, 2010 Shale is a Very Broad Name Used to Describe a Large Category of Rock In conventional petroleum geology shale is thought of as
More informationLaboratory Triaxial and Permeability Tests on Tournemire Shale and Cobourg Limestone (Contract : R413.8) FINAL REPORT
RSP-413.8 Laboratory Triaxial and Permeability Tests on Tournemire Shale and Cobourg Limestone (Contract 87055-14-0209: R413.8) FINAL REPORT M.H.B. Nasseri, Ph.D and R.P. Young, Ph.D University of Toronto
More informationEffects of VTI Anisotropy in Shale-Gas Reservoir Characterization
P-014 Summary Effects of VTI Anisotropy in Shale-Gas Reservoir Characterization Niranjan Banik* and Mark Egan, WesternGeco Shale reservoirs are one of the hottest plays in the oil industry today. Our understanding
More informationDYNAMIC ANALYSIS OF PILES IN SAND BASED ON SOIL-PILE INTERACTION
October 1-17,, Beijing, China DYNAMIC ANALYSIS OF PILES IN SAND BASED ON SOIL-PILE INTERACTION Mohammad M. Ahmadi 1 and Mahdi Ehsani 1 Assistant Professor, Dept. of Civil Engineering, Geotechnical Group,
More informationA review of friction laws and their application for simulation of microseismicity prior to hydraulic fracturing
A review of friction laws and their application for simulation of microseismicity prior to hydraulic fracturing Jiyang Ye, Mirko Van Der Baan (Email: jiyang1@ualberta.ca, Mirko.VanderBaan@ualberta.ca)
More informationGeneric Strategies to Implement Material Grading in Finite Element Methods for Isotropic and Anisotropic Materials
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Engineering Mechanics Dissertations & Theses Mechanical & Materials Engineering, Department of Winter 12-9-2011 Generic
More informationNumerical Modeling of Interface Between Soil and Pile to Account for Loss of Contact during Seismic Excitation
Numerical Modeling of Interface Between Soil and Pile to Account for Loss of Contact during Seismic Excitation P. Sushma Ph D Scholar, Earthquake Engineering Research Center, IIIT Hyderabad, Gachbowli,
More information3D simulations of an injection test done into an unsaturated porous and fractured limestone
3D simulations of an injection test done into an unsaturated porous and fractured limestone A. Thoraval *, Y. Guglielmi, F. Cappa INERIS, Ecole des Mines de Nancy, FRANCE *Corresponding author: Ecole des
More informationEOSC433: Geotechnical Engineering Practice & Design
EOSC433: Geotechnical Engineering Practice & Design Lecture 1: Introduction 1 of 31 Dr. Erik Eberhardt EOSC 433 (Term 2, 2005/06) Overview This course will examine different principles, approaches, and
More informationCritical Borehole Orientations Rock Mechanics Aspects
Critical Borehole Orientations Rock Mechanics Aspects By R. BRAUN* Abstract This article discusses rock mechanics aspects of the relationship between borehole stability and borehole orientation. Two kinds
More information3.4 Fuzzy Logic Fuzzy Set Theory Approximate Reasoning Fuzzy Inference Evolutionary Optimization...
Contents 1 Introduction... 1 1.1 The Shale Revolution... 2 1.2 Traditional Modeling... 4 1.3 A Paradigm Shift... 4 2 Modeling Production from Shale... 7 2.1 Reservoir Modeling of Shale... 9 2.2 System
More informationExploration / Appraisal of Shales. Petrophysics Technical Manager Unconventional Resources
Exploration / Appraisal of Shales Rick Lewis Petrophysics Technical Manager Unconventional Resources Organic Shale Factors Controlling Gas Reservoir Quality Conventional sandstone Mineral framework Gas
More information3D Finite Element Modeling of fault-slip triggering caused by porepressure
3D Finite Element Modeling of fault-slip triggering caused by porepressure changes Arsalan Sattari and David W. Eaton Department of Geoscience, University of Calgary Suary We present a 3D model using a
More informationDISCRETE FRACTURE NETWORK MODELLING OF HYDRAULIC FRACTURING IN A STRUCTURALLY CONTROLLED AREA OF THE MONTNEY FORMATION, BC
DISCRETE FRACTURE NETWORK MODELLING OF HYDRAULIC FRACTURING IN A STRUCTURALLY CONTROLLED AREA OF THE MONTNEY FORMATION, BC Steve Rogers Golder Associates Ltd Pat McLellan McLellan Energy Advisors Inc Gordon
More informationModule 5: Failure Criteria of Rock and Rock masses. Contents Hydrostatic compression Deviatoric compression
FAILURE CRITERIA OF ROCK AND ROCK MASSES Contents 5.1 Failure in rocks 5.1.1 Hydrostatic compression 5.1.2 Deviatoric compression 5.1.3 Effect of confining pressure 5.2 Failure modes in rocks 5.3 Complete
More informationUncertainty modelling using software FReET
Uncertainty modelling using software FReET D. Novak, M. Vorechovsky, R. Rusina Brno University of Technology Brno, Czech Republic 1/30 Outline Introduction Methods and main features Software FReET Selected
More informationContent. Department of Mathematics University of Oslo
Chapter: 1 MEK4560 The Finite Element Method in Solid Mechanics II (January 25, 2008) (E-post:torgeiru@math.uio.no) Page 1 of 14 Content 1 Introduction to MEK4560 3 1.1 Minimum Potential energy..............................
More informationOpen-hole compressive strength prediction of CFRP composite laminates
Open-hole compressive strength prediction of CFRP composite laminates O. İnal 1, A. Ataş 2,* 1 Department of Mechanical Engineering, Balikesir University, Balikesir, 10145, Turkey, inal@balikesir.edu.tr
More informationImpact of fracture spacing and mechanical parameter anisotropy on fracture width in horizontal wells in shales
Scholars' Mine Masters Theses Student Research & Creative Works Spring 2014 Impact of fracture spacing and mechanical parameter anisotropy on fracture width in horizontal wells in shales Deepak Gokaraju
More informationUniversity of Sheffield The development of finite elements for 3D structural analysis in fire
The development of finite elements for 3D structural analysis in fire Chaoming Yu, I. W. Burgess, Z. Huang, R. J. Plank Department of Civil and Structural Engineering StiFF 05/09/2006 3D composite structures
More informationA circular tunnel in a Mohr-Coulomb medium with an overlying fault
MAP3D VERIFICATION EXAMPLE 9 A circular tunnel in a Mohr-Coulomb medium with an overlying fault 1 Description This example involves calculating the stresses and displacements on a fault overlying a 5 m
More informationAnisotropic permeabilities evolution of reservoir rocks under pressure:
Extended reserves Clean refining Fuel-efficient vehicles Diversified fuels Controlled CO 2 Anisotropic permeabilities evolution : New experimental and numerical approaches (1) Dautriat J. 1-2*, Gland N.
More informationPractical Geomechanics
www.bakerhughes.com Practical Geomechanics Baker Hughes - RDS Geomechanics Services 2015 Baker Hughes Incorporated. All rights reserved Copyright By accepting these materials you agree that all materials
More informationq v = - K h = kg/ν units of velocity Darcy's Law: K = kρg/µ HYDRAULIC CONDUCTIVITY, K Proportionality constant in Darcy's Law
Darcy's Law: q v - K h HYDRAULIC CONDUCTIVITY, K m/s K kρg/µ kg/ν units of velocity Proportionality constant in Darcy's Law Property of both fluid and medium see D&S, p. 62 HYDRAULIC POTENTIAL (Φ): Φ g
More informationNumerical Simulation of Unsaturated Infilled Joints in Shear
University of Wollongong Research Online Coal Operators' Conference Faculty of Engineering and Information Sciences 2018 Numerical Simulation of Unsaturated Infilled Joints in Shear Libin Gong University
More informationFEM-Study ILD-AHCAL. Seismic simulation. K. Gadow, M. Lemke, F. Sefkow Santander,
FEM-Study ILD-AHCAL Seismic simulation K. Gadow, M. Lemke, F. Sefkow Santander, 3.6..2016 Overview > Reminder of earlier studies > Sub-structuring method > First results > Outlook Martin Lemke FEM-Study
More informationJens Otto CADFEM GmbH
Titelmasterformat Simulation of Electric durch Machines Klicken with bearbeiten ANSYS Jens Otto CADFEM GmbH 1 Why Simulation with ANSYS? Challenges for electric machines Electromagnetic Design: Rated power/
More informationINTERNATIONAL JOURNAL OF APPLIED ENGINEERING RESEARCH, DINDIGUL Volume 2, No 1, 2011
Interlaminar failure analysis of FRP cross ply laminate with elliptical cutout Venkateswara Rao.S 1, Sd. Abdul Kalam 1, Srilakshmi.S 1, Bala Krishna Murthy.V 2 1 Mechanical Engineering Department, P. V.
More informationOptimising Resource Plays An integrated GeoPrediction Approach
Optimising Resource Plays An integrated GeoPrediction Approach Edward Hoskin, Stephen O Connor, Scott Mildren, Michel Kemper, Cristian Malaver, Jeremy Gallop and Sam Green Ikon Science Ltd. Summary A mechanical
More informationHydraulic properties of porous media
PART 5 Hydraulic properties of porous media Porosity Definition: Void space: n V void /V total total porosity e V void /V solid Primary porosity - between grains Secondary porosity - fracture or solution
More informationGain information on the development of Engineered Geothermal Systems (EGS) and enhance our understanding of long-term reservoir behaviour.
1 GEOTHERMAL ICL was involved in the first commercial Enhanced Geothermal System (EGS) project in the EU and for over 15 years has undertaken international research programs for the monitoring of rock
More informationBrittle Deformation. Earth Structure (2 nd Edition), 2004 W.W. Norton & Co, New York Slide show by Ben van der Pluijm
Lecture 6 Brittle Deformation Earth Structure (2 nd Edition), 2004 W.W. Norton & Co, New York Slide show by Ben van der Pluijm WW Norton, unless noted otherwise Brittle deformation EarthStructure (2 nd
More informationJornadas de Producción, Tratamiento y Transporte de Gas El Desafío del Gas no Convencional
Jornadas de Producción, Tratamiento y Transporte de Gas El Desafío del Gas no Convencional Shale Engineering George Vassilellis, Carlos Sanz September 1, 2011 Gaffney, Cline & Associates 1 Agenda Objectives
More informationRobust Design Optimization of an Axial Compressor Johannes Einzinger ANSYS Germany GmbH
Robust Design Optimization of an Axial Compressor Johannes Einzinger ANSYS Germany GmbH 1 Motivation Turbo Machines show: Rotating and stationary Parts Transient Flow Field Choke, Stall Dynamic Blade Loading
More informationIntegrating Geomechanics and Reservoir Characterization Examples from Canadian Shale Plays
Integrating Geomechanics and Reservoir Characterization Examples from Canadian Shale Plays AAPG Geosciences Technology Workshops Geomechanics and Reservoir Characterization of Shale and Carbonates July
More informationSummary. Simple model for kerogen maturity (Carcione, 2000)
Malleswar Yenugu* and De-hua Han, University of Houston, USA Summary The conversion of kerogen to oil/gas will build up overpressure. Overpressure is caused by conversion of solid kerogen to fluid hydrocarbons
More informationPRELIMINARY VALIDATION OF COMPOSITE MATERIAL CONSTITUTIVE CHARACTERIZATION
Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2012 August 12-15, 2012, Chicago, IL, USA DETC2012-71082
More informationMathematical Modelling of a Fault Slip Induced by Water Injection
Mathematical Modelling of a Fault Slip Induced by Water Injection T. S. Nguyen, 1 J.Rutqvist 2 and Y. Gugliemi 2 1 Canadian Nuclear Safety Commission 2 Lawrence Berkeley National Laboratory ComGeo IV Symposium
More information