Skip to main content

Furthering the Knowledge Base For Reducing the Environmental Footprint of Shale Gas Development (FracRisk)

Deliverables

Design document of SG-RBCA

Prepare a design document of the SGRBCA starting from existing RBCA design documents and platforms

Multiple-injection design and parameter sensitivity analysis

The UGOE group shall assess the determinability invertibility of major hydrogeologic parameters transporteffective values of fissure aperture and spacing total frac volume matrix porosity fracmatrix interface area from artificialtracer signals detectable uphole in flux mode during flowback and production

Use of electrical resistivity tomography to detect temporal near surface changes providing reliable uncertainty estimates for pollution risk assessment

This postdoctoral project supervised by Prof Andrew Curtis and Dr Mark Chapman undertaken by PDRA Erica Galetti initially had the goals of analysing microseismicity distributions from actual fracking data their correlations with productionrelated activity and the extent to which anisotropy could be detectable in order to assess fracture orientations A data set for this was in the universitys possession in Edinburgh at the time of writing the proposal Unfortunately by the time the PDRA was recruited the data were not available for this purpose the industrial owner of the data restricted their use As a result it was necessary to redesign the project for this PDRARemaining in the same general area of using Geophysics to detect subsurface information related to risk assessment of fracking operations the following project was thought an appropriate replacement during such operations the nearsubsurface depths of tens to lowhundreds of metres is potentially at risk of pollution from escaping drilling fluids reservoir fluids migrating up fracture networks and by the escape of pollutants from the drilling and production platform or injectionwater pool To enable the nearsubsurface to be monitored and concomitant pollution risks tracked over time a new subsurface monitoring method is being developed and tested that uses electrical resistivity tomography ERT to image the near surface The key new feature of the method is that it is a fully nonlinear Monte Carlo method which for the first time produces reliable estimates of ERT uncertainty in subsurface properties Reliable uncertainty estimates are necessary for pollution risk assessment but todate they have been unavailable Hence this new project direction makes a significant contribution to risk assessment of fracking operations

Legislative and Regulatory Review Final

the review in deliverable D72 will necessarily have to be continually updated throughout the life of the project and the final review delivered month 34

Results of the application of the SG-RBCA to three sites in Europe

Results of the application of the SGRBCA to three sites in Europe

Report of reactive experimental data

A series of batch reaction experiments using selected UK and European shale samples exposed to brine at reservoir temperature will be undertaken. This will allow the determination of the composition of produced water which will arise from these formations during Fracking. The study will investigate the factors inherent in the shales, such as mineralogy and organic content, which control the dissolved salts, heavy metals and radioactive element composition of the produced waters

Report on Hydro-geo-chemo-mechanical facies analysis relative to gas shale’s of key basins

Report on Hydrogeochemomechanical facies analysis relative to gas shales of key basins Data will be assembled on the stress regimes generic thicknesses of deposits reservoir characteristics depositional history hydrocarbon quality resource potential and natural faulting The information will be used to provide a realistic framework for the Features Events and Processes characterization in WP 3 to focus the risk scenario work in WP4 and to provide realistic parametrical variations for the modelling investigation in WP5

"Financial report period #2"

second official reporting in writing to the Commission including establishing and maintaining financial records coordination of payments and distribution of partner shares

Report on enhancement potential of seismic techniques

The analysis of various datasets coming from different wellknown hydrocarbon provinces around the world from within this project and available in the literature will first aim at setting up operation recommendations depending on the scenarios developed in WP5 operations goals and target formations

Results of the reactive transport modelling case-studies

The objective of this task is to ensure the availability of tools to model the long term fate of fracking fluids additives The chemical interactions of the chemical additives the formation water and in situ rock minerals in the shale nearby formations and shallow aquifers will be simulated by UU with the TOUGHREACT code and by CSIC using CODEBRIGHTRETRASO

Report on developments for hydraulic fracturing and induced seismicity in the open-source simulator CODEBRIGHT-RETRASO

The chemical interactions of the chemical additives the formation water and in situ rock minerals in the shale nearby formations and shallow aquifers will be simulated by UU with the TOUGHREACT code and by CSIC using CODEBRIGHTRETRASO

Report of HM Fracking data

Analogue samples of shale from key formations in Europe UK Germany will be selected collected and fracked in unique polyaxial experimental apparatus at the University of Edinburgh Samples with a diameter of 20 cm and length of 20 cm will be placed under in situ conditions of anisotropic stress temperature and fluid pressure Injection will be simulated by including a central well in the sample and fluid injected until the sample fracks

Parameter and model uncertainty quantification

Global sensitivity analyses techniques based will be employed to identify the key contribution of uncertain parameters to the overall uncertainty associated with predictions provided by each model tested

"Financial report period #1"

Official reporting in writing every 18 months to the Commission including establishing and maintaining financial records coordination of payments and distribution of partner shares

Literature study on multi-continua approaches and upscaling methods

Uncertainty quantification requires a systematic categorization of the origin of uncertainty thereby involving stochastic modelling approaches which include modern geostatistically based methodologies

Report on existing (geophysical) monitoring techniques

review existing monitoring techniques and analyse methodological and technological extensions studying the different conceivable network designs and helping to optimise them

Report on the experimental results of fluid fracking

Two sets of experiments will be undertaken firstly to improve understanding of the response of a fracture network to changes in an anisotropic stress field in shale and secondly to simulate the actual act of fracking and development of a new fracture network under fluid pressure Controlled fluid volumes will be injected at high pressure via an artificial borehole into these samples to simulate the fracking conditions expected Analogue samples will be chosen which show various degrees of discontinuities or compositional heterogeneity The development of the fracture network as a response to the fluid injection under anisotropic stress conditions in these samples will be monitored closely The samples will then be analysed in detail to determine the location and geometry of the experimentally generated fracture network and used to validate numerical models of the fracking process

Legislative and Regulatory Review Update

Legislation and regulatory practices of those member states with significant shalegas reserves United Kingdom France Germany Spain Poland Austria Hungary and Romania will be collated and compared with each other and with legislation from some of the other firstworld countries with mature shalegas industries The main focus of the collation and review will be on how existing legislation recognizes and seeks to control risks arising from scientific uncertainty embedded in the shalegas industrys exploration and exploitation practices

Results of the flow and transport simulations

Results of the flow and transport simulations using the discrete fracturenetwork models multicontinua models and multiscale approaches

Uncertainty quantification techniques

Development of a an original geostatistical scaling approach embedded in a stochastic modeling framework to quantify uncertainty associated with flow and transport predictions at multiple scales of observations b a Bayesian methodology to quantify uncertainty associated with the use of different competing flow and transport models The results from these theoretical settings will be directly compatible with the modelling tools developed in the project

Report on artificial tracer signal modelling and parameter sensititiviy analysis

WP6 uses only tracer species detectable on site in real time with standard field equipment Their signals first during flowback next during gas flow enable I multiplefrac inflow profiling II quantifying matrixfracture as part of F transport III monitoring of EP fig above but require a spiking design and parameter inversion workflow

Development and deployment of SG-RBCA

Development and deployment of SGRBCA

Characterisation of key risk scenarios

Based on the identification of the key risk combinations in task 31 the possible parametrical variations of key input variables within the six focused model scenarios will be characterised These values will be based on an assessment of the different hydrogeochemicalmechanical facies characteristics expected within the seven different shale gas basins already identified within Europe WP2 D23 This ensures that events and processes occurring at different sites can be compared and contrasted against a common frame of reference providing the basis for the construction of a structured knowledge base and generic risk assessment

"Management report period #1"

Official management reporting in writing will take place every 18 months to the Commission

Report on the modelling of CH4 Storage and release in shale matrix

The works proposed here consists in the improvement of the GenMol code subcontracted to the GenMol developers coord G Ppe U Marseille France1 in order to 1 study the CH4 sorption capacity of the kerogen organic matter 2 increase the model size in order to tackle discontinuities larger than 20 and 3 model the CH4 molecules motion in these discontinuities The model will be run for a representative set of examples corresponding to the conditions prescribed in WP2 The results will be used to parameterize the macroscopic production modelling WP3

Report on modelling clay-CH4 and Kerogen-CH4 interactions

To improve the kerogen modeling and test the assumption implicitly made in the presently used empirical models of massive CH4 sorption on kerogen it necessary to introduce other types of atomic and molecular entities trapped in the mass representation First the composition of standard kerogens found in such environment will be investigated from the literature and then these structures will be implemented in the GenMol

Summary report of scientific recommendation for best practices

Scientific recommendations for best practices to minimise the environmental footprint of shale gas exploration and extraction will be collated into a final report which shall summarise the tools developed during the project and how these can be used to improve safety of fracking operations and to minimize their risk

Results of the geomechanical modelling, coupled to flow modelling and micro-seismics simulations

Apply the numerical modelling approaches developed here and validate them against the results for the experimental investigation of fracking described in task 37 Experimental investigation of fracture propagation and fluid flow in fractures under anisotropic stress conditions and during hydrofracturing Most academic codes simulate fracturing through concentrated plastic strain along failure planes This approach may be adequate for ductile materials but not for the fragile failure conditions expected at hydraulic fracturing sites Therefore the second objective of this task is to extend and use existing codes to simulate fracture generation and to predict induced micro seismicity magnitude

FEP Database

The first consortium meeting will include a two day workshop where all the focused model scenarios will be studied in detail to evaluate both a Features Events and Processes list and to assess the level of risk associated with each scenario This list will be provided as a data base to the consortium members and key risk combinations used to direct the modelling investigation and assessment of monitoring options with the aim of reducing uncertainty

Provision of baseline seismic data access

Analysis of passive seismic monitoring of the Bowland basin in the UK will provide more detailed characterization of background seismic behavior

Ranked FEP list with key responsibilities for further modelling or scientific investigation

Rank key risk FEPs associated with lack of understanding or uncertainty identified in WP3 lead FEP work shop Direct modelling and investigation effort in WP5 to reduce uncertainty and WP3 work to increase understanding

Scaling Laws for hydrogeologic parameters

Statistical scaling uncertainty quantification through rigorous Bayesian treatment of multiple models across diverse space scales

Review of Capabilities of Existing Industry and Research Codes

Perform a formal review and comparison on the type of processes that each existing code includes in the representation of each phenomenon on how these processes are approximated and on how they are coupled

"Management report period #2"

Second period management reporting in writing to the Commission

Report on developments for DFN models and multi-continua models

The results from the DFN simulations with flow solely in the fractures or in both fractures and matrix while in the matrix we expect mainly diffusion to be relevant can be compared with a dualmultipleporosity approach

Report on spatio-temporal distributions of microseismic compared with other baseline data during fracking

Spatiotemporal distributions of microseismic events will be compared with other baseline data such as treatment curves and fracture distributions in order to better understand the geomechanical characteristics of the reservoir

"Scientific progress report period #2"

Collation of annual research scientific progress updates for period 2 from each of the WPs

Report on impact of self-healing fluids on mitigation

Developing selfhealing fluids and emplacement protocols for clogging leakage both in the well and in fractures as an alternative to the existing techniques based mainly on Portland cement slurries

Database of physical and chemical properties and thresholds relevant to SG

Collect needed data and information relevant to the materials used in the shale gas industry with potential impacts on air water and soil pollution Assemble information on threshold levels permitted levels toxicity levels potential receptors and their respective sensitivities Collect data and information on admissible levels of induced seismicity as function of the area and the underground formations Form a database of the relevant physical and chemical properties and of the threshold levels

"Scientific progress report period #1"

Collation of annual research scientific progress updates for the first reporting period from each of the WPs

Empirical comparative study on the characteristics of propped and unpropped hydraulic fractures in shale-gas formations

Empirical comparative study on the characteristics of propped and unpropped hydraulic fractures in shalegas formations Postfrac hydraulic test data or gas productionrate histories will be diagnosed and analysed in order to investigate flow characteristics bilinear formationlinear radial or others fracture conductivity fracture storage coefficient and outer boundary conditions of propped and unpropped fractures or fracturesystems in shalegas formations

Curation and storage of publically available data sets

Curation and storage of publically available data sets

Presentations for public dissemination

The goal of this task is to make project results available to the general public This will be achieved by active participation in discussion forums the media scientific dissemination activities periodically organized by partner institutions and the like

TV documentary on hydraulic fracturing

produce a TV documentary for TV dissemination and eventual publication in Youtube

Project website inaugurated

Website designed to engage with the public via a project specific Website with a password protected intra net for use by the consortium to encourage integrations between partners and dissemination of findings

Educational articles and promotional material

The goal of this task is to make project results available to the general public This will be achieved by active participation in discussion forums the media scientific dissemination activities periodically organized by partner institutions and the like To this end we will prepare 1 a set of presentations with varying degrees of technical details for presentations to varying publics 2 a TV documentary for TV dissemination and eventual publication in Youtube and 3 Educational articles and promotional material In addition to making this material available to newspapers magazines radio and TV channels they will also be published on the FracRisk project website

Searching for OpenAIRE data...

Publications

The effects of nearby fractures on hydraulically induced fracture propagation and permeability changes

Author(s): Bruno Figueiredo, Chin-Fu Tsang, Jonny Rutqvist, Auli Niemi
Published in: Engineering Geology, 228, 2017, Page(s) 197-213, ISSN 0013-7952
Publisher: Elsevier BV
DOI: 10.1016/j.enggeo.2017.08.011

Wastewater from hydraulic fracturing in the UK: assessing the viability and cost of management

Author(s): M. C. O'Donnell, S. M. V. Gilfillan, K. Edlmann, C. I. McDermott
Published in: Environmental Science: Water Research & Technology, 2018, ISSN 2053-1400
Publisher: Royal society of chemistry
DOI: 10.1039/C7EW00474E

Adaptive POD model reduction for solute transport in heterogeneous porous media

Author(s): Calogero B. Rizzo, Felipe P. J. de Barros, Simona Perotto, Luca Oldani, Alberto Guadagnini
Published in: Computational Geosciences, 22/1, 2018, Page(s) 297-308, ISSN 1420-0597
Publisher: Kluwer Academic Publishers
DOI: 10.1007/s10596-017-9693-5

Influence of capillary end effects on steady-state relative permeability estimates from direct pore-scale simulations

Author(s): Gaël Raymond Guédon, Jeffrey De’Haven Hyman, Fabio Inzoli, Monica Riva, Alberto Guadagnini
Published in: Physics of Fluids, 29/12, 2017, Page(s) 123104, ISSN 1070-6631
Publisher: American Institute of Physics
DOI: 10.1063/1.5009075

The Effect of CO2 Phase on Oil Displacement in a Sandstone Core Sample

Author(s): Ebraheam Al-Zaidi, Xianfeng Fan, Katriona Edlmann
Published in: Fluids, 3/1, 2018, Page(s) 23, ISSN 2311-5521
Publisher: MDPI
DOI: 10.3390/fluids3010023

Superposition approach to understand triggering mechanisms of post-injection induced seismicity

Author(s): Silvia De Simone, Jesús Carrera, Víctor Vilarrasa
Published in: Geothermics, 70, 2017, Page(s) 85-97, ISSN 0375-6505
Publisher: Pergamon Press
DOI: 10.1016/j.geothermics.2017.05.011

A stable computation of log-derivatives from noisy drawdown data

Author(s): Gustavo Ramos, Jesus Carrera, Susana Gómez, Carlos Minutti, Rodolfo Camacho
Published in: Water Resources Research, 53/9, 2017, Page(s) 7904-7916, ISSN 0043-1397
Publisher: American Geophysical Union
DOI: 10.1002/2017wr020811

A methodology to detect and locate low-permeability faults to reduce the risk of inducing seismicity of fluid injection operations in deep saline formations

Author(s): Victor Vilarrasa, Gil Bustarret, Lyesse Laloui, Mehdi Zeidouni
Published in: International Journal of Greenhouse Gas Control, 59, 2017, Page(s) 110-122, ISSN 1750-5836
Publisher: Elsevier BV
DOI: 10.1016/j.ijggc.2017.02.010

Analytical Solutions to Coupled HM Problems to Highlight the Nonlocal Nature of Aquifer Storage

Author(s): Silvia De Simone, Jesús Carrera
Published in: Water Resources Research, 53/11, 2017, Page(s) 9580-9599, ISSN 0043-1397
Publisher: American Geophysical Union
DOI: 10.1002/2017wr020824

Settlements around pumping wells: Analysis of influential factors and a simple calculation procedure

Author(s): Estanislao Pujades, Silvia De Simone, Jesus Carrera, Enric Vázquez-Suñé, Anna Jurado
Published in: Journal of Hydrology, 548, 2017, Page(s) 225-236, ISSN 0022-1694
Publisher: Elsevier BV
DOI: 10.1016/j.jhydrol.2017.02.040

Self-averaging and weak ergodicity breaking of diffusion in heterogeneous media

Author(s): Anna Russian, Marco Dentz, Philippe Gouze
Published in: Physical Review E, 96/2, 2017, ISSN 2470-0045
Publisher: American Physical Society
DOI: 10.1103/physreve.96.022156

Numerical investigations of upward migration of fracking fluid along a fault zone during and after stimulation

Author(s): Reza Taherdangkoo, Alexandru Tatomir, Robert Taylor, Martin Sauter
Published in: Energy Procedia, 125, 2017, Page(s) 126-135, ISSN 1876-6102
Publisher: Elsevier
DOI: 10.1016/j.egypro.2017.08.093

Moment-based metrics for global sensitivity analysis of hydrological systems

Author(s): Aronne Dell'Oca, Monica Riva, Alberto Guadagnini
Published in: Hydrology and Earth System Sciences, 21/12, 2017, Page(s) 6219-6234, ISSN 1607-7938
Publisher: Copernicus Publications
DOI: 10.5194/hess-21-6219-2017

Transdimensional Electrical Resistivity Tomography

Author(s): E. Galetti, A. Curtis
Published in: Journal of Geophysical Research: Solid Earth, 2018, ISSN 2169-9313
Publisher: American Geophysical Union
DOI: 10.1029/2017jb015418

A discrete fracture model for two-phase flow in fractured porous media

Author(s): Dennis Gläser, Rainer Helmig, Bernd Flemisch, Holger Class
Published in: Advances in Water Resources, 110, 2017, Page(s) 335-348, ISSN 0309-1708
Publisher: Pergamon Press Ltd.
DOI: 10.1016/j.advwatres.2017.10.031

Effects of Pore-Scale Geometry and Wettability on Two-Phase Relative Permeabilities within Elementary Cells

Author(s): Emanuela Bianchi Janetti, Monica Riva, Alberto Guadagnini
Published in: Water, 9/4, 2017, Page(s) 252, ISSN 2073-4441
Publisher: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.3390/w9040252

Statistical modeling of gas-permeability spatial variability along a limestone core

Author(s): M. Siena, M. Riva, M. Giamberini, P. Gouze, A. Guadagnini
Published in: Spatial Statistics, 2017, ISSN 2211-6753
Publisher: Elsevier BV
DOI: 10.1016/j.spasta.2017.07.007

Theoretical analysis of non-Gaussian heterogeneity effects on subsurface flow and transport

Author(s): Monica Riva, Alberto Guadagnini, Shlomo P. Neuman
Published in: Water Resources Research, 53/4, 2017, Page(s) 2998-3012, ISSN 0043-1397
Publisher: American Geophysical Union
DOI: 10.1002/2016WR019353

Uncertainty Quantification in Scale-Dependent Models of Flow in Porous Media

Author(s): A. M. Tartakovsky, M. Panzeri, G. D. Tartakovsky, A. Guadagnini
Published in: Water Resources Research, 53/11, 2017, Page(s) 9392-9401, ISSN 0043-1397
Publisher: American Geophysical Union
DOI: 10.1002/2017WR020905

Conceptual model development using a generic Features, Events, and Processes (FEP) database for assessing the potential impact of hydraulic fracturing on groundwater aquifers

Author(s): Alexandru Tatomir, Christopher McDermott, Jacob Bensabat, Holger Class, Katriona Edlmann, Reza Taherdangkoo, Martin Sauter
Published in: Advances in Geosciences, 45, 2018, Page(s) 185-192, ISSN 1680-7359
Publisher: copernicus
DOI: 10.5194/adgeo-45-185-2018

Geophysical Monitoring of a Hydrocarbon Reservoir

Author(s): Enrico Caffagni, Götz Bokelmann
Published in: Energy Procedia, 97, 2016, Page(s) 294-301, ISSN 1876-6102
Publisher: Elsevier Ltd
DOI: 10.1016/j.egypro.2016.10.003

An Approach Towards a FEP-based Model for Risk Assessment for Hydraulic Fracturing Operations

Author(s): D. Gläser, A. Dell’Oca, A. Tatomir, J. Bensabat, H. Class, A. Guadagnini, R. Helmig, C. McDermott, M. Riva, M. Sauter
Published in: Energy Procedia, 97, 2016, Page(s) 387-394, ISSN 1876-6102
Publisher: Elsevier ltd
DOI: 10.1016/j.egypro.2016.10.030

A practical solution to the mechanical perturbations induced by non-isothermal injection into a permeable medium

Author(s): Silvia De Simone, Jesus Carrera, Berta Maria Gómez-Castro
Published in: International Journal of Rock Mechanics and Mining Sciences, 91, 2017, Page(s) 7-17, ISSN 1365-1609
Publisher: Pergamon Press Ltd.
DOI: 10.1016/j.ijrmms.2016.11.001

Stochastic simulation of soil particle-size curves in heterogeneous aquifer systems through a Bayes space approach

Author(s): A. Menafoglio, A. Guadagnini, P. Secchi
Published in: Water Resources Research, 52/8, 2016, Page(s) 5708-5726, ISSN 0043-1397
Publisher: American Geophysical Union
DOI: 10.1002/2015WR018369

A Class-Kriging Predictor for Functional Compositions with Application to Particle-Size Curves in Heterogeneous Aquifers

Author(s): Alessandra Menafoglio, Piercesare Secchi, Alberto Guadagnini
Published in: Mathematical Geosciences, 48/4, 2016, Page(s) 463-485, ISSN 1874-8961
Publisher: Springer Verlag
DOI: 10.1007/s11004-015-9625-7

Theory and generation of conditional, scalable sub-Gaussian random fields

Author(s): M. Panzeri, M. Riva, A. Guadagnini, S.P. Neuman
Published in: Water Resources Research, 52/3, 2016, Page(s) 1746-1761, ISSN 0043-1397
Publisher: American Geophysical Union
DOI: 10.1002/2015WR018348

Characterization of two- and three-phase relative permeability of water-wet porous media through X-Ray saturation measurements

Author(s): Leili Moghadasi, Alberto Guadagnini, Fabio Inzoli, Martin Bartosek, Dario Renna
Published in: Journal of Petroleum Science and Engineering, 145, 2016, Page(s) 453-463, ISSN 0920-4105
Publisher: Elsevier BV
DOI: 10.1016/j.petrol.2016.05.031

Comparative assessment of three-phase oil relative permeability models

Author(s): Ehsan Ranaee, Monica Riva, Giovanni M. Porta, Alberto Guadagnini
Published in: Water Resources Research, 52/7, 2016, Page(s) 5341-5356, ISSN 0043-1397
Publisher: American Geophysical Union
DOI: 10.1002/2016WR018872

Data-worth analysis through probabilistic collocation-based Ensemble Kalman Filter

Author(s): Cheng Dai, Liang Xue, Dongxiao Zhang, Alberto Guadagnini
Published in: Journal of Hydrology, 540, 2016, Page(s) 488-503, ISSN 0022-1694
Publisher: Elsevier BV
DOI: 10.1016/j.jhydrol.2016.06.037

Study of hydraulic fracturing processes in shale formations with complex geological settings

Author(s): Bruno Figueiredo, Chin-Fu Tsang, Jonny Rutqvist, Auli Niemi
Published in: Journal of Petroleum Science and Engineering, 152, 2017, Page(s) 361-374, ISSN 0920-4105
Publisher: Elsevier BV
DOI: 10.1016/j.petrol.2017.03.011

Transdimensional Monte Carlo Electrical Resistivity Tomography

Author(s): E. Galetti, A. Curtis
Published in: Near Surface Geoscience 2016 - 22nd European Meeting of Environmental and Engineering Geophysics, 2016, ISBN 978-94-6282-194-1
Publisher: EAGE Publications BV
DOI: 10.3997/2214-4609.201602017

Probabilistic characterization of targeted model output for focused scenarios related to hydraulic fracturing

Author(s): Class, H., A. Dell'Oca, D. Gläser, A. Guadagnini, M. Beck, M. Riva, R. Helmig, C. McDermott and M. Sauter
Published in: Computational methods in water resources XXII, 2018
Publisher: University of Rennes

Sorption, matrix diffusion need not make a major difference for frac characterization from short-term tracer signals

Author(s): Julia Ghergut, Horst Behrens, Jac Bensabat, Martin Sauter, Bianca Wagner, Bettina Wiegand
Published in: Proceedings of the 43rd Workshop on Geothermal Reservoir Engineering., 2018
Publisher: Stanford University

A FEM approach to investigate hydraulic fracturing fluid transport within faulted geological reservoirs

Author(s): Robert Taylor Jr, Alexandru Tatomir and Martin Sauter
Published in: . EGU General Assembly Conference 2018, session ERE2.1 – Environmental impacts of hydraulic fracturing: Measurements, monitoring, mitigation and management., 2018
Publisher: EGU

Investigation of potential impact of hydraulic fracturing fluid and methane leakage at regional-scale

Author(s): Alexandru Bogdan A.C. Tatomir, Chris McDermott and Martin Sauter.
Published in: EGU General Assembly Conference 2018, session ERE2.1 – Environmental impacts of hydraulic fracturing: Measurements, monitoring, mitigation and management., 2018
Publisher: EGU

Modelling the chemical degradation of hydrolysable fracking constituents.

Author(s): Uli Maier, Alexandru Tatomir and Martin Sauter.
Published in: EGU General Assembly Conference 2018, session ERE5.3 – Process quantification and modelling in subsurface utilization., 2018
Publisher: EGU

The long-term response of geological setting to hydraulic fracturing in the presence of a leaky well

Author(s): Reza Taherdangkoo, Alexandru Tatomir, Tega Anighoro and Martin Sauter
Published in: EGU General Assembly Conference 2018, session ERE2.1 – Environmental impacts of hydraulic fracturing: Measurements, monitoring, mitigation and management., 2018
Publisher: EGU

The Noble Gas Fingerprint in a UK Unconventional Gas Reservoir

Author(s): R McKavney, S Gilfillan, D Györe, F Stuart.
Published in: EGU General Assembly Conference Abstracts, 18, 16478, 2018
Publisher: EGU

Hydro-mechanical pressure response to fluid injection into finite aquifers highlights the non-local behavior of storage

Author(s): De Simone S. & Carrera J.
Published in: 19th EGU General Assembly, EGU2017, proceedings from the conference held 23-28 April, 2017 in Vienna, Austria., 2017, Page(s) 4106
Publisher: EGU

Post-injection induced seismicity provoked by superposition of different mechanisms

Author(s): De Simone S., Carrera J. & Vilarrasa V.
Published in: 19th EGU General Assembly, EGU2017, proceedings from the conference held 23-28 April, 2017 in Vienna, Austria, 2017, Page(s) 4073
Publisher: EGU

A New Method to simulate Shear and Tensile Failure due to Hydraulic Fracturing Operations.

Author(s): Gómez Castro B.M., De Simone S. & Carrera J.
Published in: 19th EGU General Assembly, EGU2017, proceedings from the conference held 23-28 April, 2017 in Vienna, Austria, 2017, Page(s) 8657
Publisher: EGU

Numerical Advances to simulate Shear Failure and Tensile Failure due to Hydraulic Fracturing Operations

Author(s): B. Gómez-Castro, S. De Simone, J. Carrera.
Published in: 6th International Conference on Coupled THMC Processes in Geosystems 5-7 Jul 2017 Paris, 2017, Page(s) p. 38-39.
Publisher: "GeoProc2017: book of abstracts"""

Comparison of sequential and fully-coupled approaches for flow and geomechanics

Author(s): Beck, M. & Class, H
Published in: European Geosciences Union (EGU) General Assembly 2018, 8.-13. April 2018 Vienna, Austria, 2018
Publisher: EGU

Flow regime mapping: outcome, or pre-requisite of tracer tests? (from the standpoint of deep-georeservoir characterization, development, operation, and monitoring)

Author(s): Ghergut, Julia; Behrens, Horst; Sauter, Martin.
Published in: EGU General Assembly Conference Abstracts, Vienna, Austria, April 2017., 2017
Publisher: EGU

Numerical Advances to simulate Shear Failure and Tensile Failure due to Hydraulic Fracturing operations

Author(s): Gómez Castro B.M., De Simone S. & Carrera J
Published in: GeoProc 6th International Conference on Coupled THMC Processes in Geosystems 5-7 Jul 2017 Paris (France), 2017
Publisher: GeoProc

Transdimensional Monte Carlo Electrical Resistivity Tomography

Author(s): Galetti, E., Curtis, A.
Published in: EAGE 22nd European Meeting of Environmental and Engineering Geophysics, 2016
Publisher: EAGE

. Induced Seismicity connections: from hydraulic fracturing to knowledge gaps, regulations, and mitigation strategy

Author(s): Caffagni, Enrico; Bokelmann, Goetz; Lenhardt, Wolfgang; Joswig, Manfred; Sauter, Martin.
Published in: ESC, European Seismological Commission Conference, Trieste, September 2016, 2016
Publisher: ESC

Rapid analytical assessment of the mechanical perturbations induced by non-isothermal injection into a subsurface formation.

Author(s): De Simone S., Carrera J., Gómez Castro B.M
Published in: EGU General Assembly Conference, Vienna, April 2016, 2016
Publisher: EGU

Development of a new code to solve hydro-mechanical coupling, shear failure and tensile failure due to hydraulic fracturing operations

Author(s): Gómez Castro B. M., De Simone S & Carrera J.
Published in: EGU General Assembly Conference Abstracts Vol. 18, Vienna, Austria., 2016
Publisher: EGU

Jolokia EGS - the limits of hydraulic stimulation

Author(s): Hogarth, R., Baisch, S., Holl, H.-G., Jeffrey, R., Jung, R.
Published in: European Geothermal Congress 2016, Sep. 2016, Strasbourg, France., 2016
Publisher: European Geothermal Congress

A Parametric Sensitivity Study on CO2 Injection in Deep Saline Aquifers Accounting for Hydro-mechanical Microfracturing

Author(s): Tatomir AB, Tomac I, Sauter M
Published in: Energy Geotechnics: Proceedings of the 1st International Conference on Energy Geotechnics, ICEGT 2016, Kiel, Germany, 29-31 August 2016, 2016, ISBN 1315-31522X
Publisher: CRC Press

An approach towards a parameterised model for risk assessment of hydraulic fracturing operations

Author(s): Gläser, Dennis; Class, Holger; Kissinger, Alexander; Beck, Martin.
Published in: EGU General Assembly Conference, Vienna, April 2016, 2016
Publisher: EGU

3D simulation of fluid-pressure-induced fracture nucleation and growth in rock samples

Author(s): Lisjak A, Mahabadi OK, Tatone BSA, Alruwaili K, Couples GD, Ma J and Al-Nakhli A
Published in: 2016
Publisher: American Rock Mechanics Association

Effect of Fracture Surface Damage on Fluid Flow and Transport in Geo-reservoirs

Author(s): I. Tomac, A.B. Tatomir, M. Sauter
Published in: Second EAGE Workshop on Geomechanics and Energy, 2015, ISBN 978-94-6282-161-3
Publisher: EAGE Publications BV
DOI: 10.3997/2214-4609.201414317

passive seismic data from the UK around UK shale gas operations

Author(s): galetti, erica; Curtis, Andrew; Chapman, mark
Published in: 1, 2018
Publisher: earth arXiv
DOI: 10.5281/zenodo.1308104

Shale Gas Features, Events and Processes (FEP) database

Author(s): tatomir, Alex; mcdermott, chris; bensabat, jacob; Weiner hagit; edlmann, Katriona; Goren, Yoni
Published in: 1, 2018
Publisher: zenodo
DOI: 10.5281/zenodo.1308106

Cyclic CO2 – H2O injection and residual trapping: implications for CO2 injection efficiency and storage security

Author(s): Mcdermott, Christopher; Ennis-King, Jonathan; Johnson, Gareth; Heinemann, Niklas; Hinchliffe, Sofi; Edlmann, Katriona
Published in: 2, 2018
Publisher: earth arXiv
DOI: 10.17605/OSF.IO/653CV