Numerical simulation of the environmental impact of hydraulic fracturing of tight/shale gas reservoirs on near‐surface groundwater: Background, base cases, shallow reservoirs, short‐term gas, and water transport
Abstract
Abstract Hydrocarbon production from unconventional resources and the use of reservoir stimulation techniques, such as hydraulic fracturing, has grown explosively over the last decade. However, concerns have arisen that reservoir stimulation creates significant environmental threats through the creation of permeable pathways connecting the stimulated reservoir with shallower freshwater aquifers, thus resulting in the contamination of potable groundwater by escaping hydrocarbons or other reservoir fluids. This study investigates, by numerical simulation, gas and water transport between a shallow tight‐gas reservoir and a shallower overlying freshwater aquifer following hydraulic fracturing operations, if such a connecting pathway has been created. We focus on two general failure scenarios: (1) communication between the reservoir and aquifer via a connecting fracture or fault and (2) communication via a deteriorated, preexisting nearby well. We conclude that the key factors driving short‐term transport of gas include high permeability for the connecting pathway and the overall volume of the connecting feature. Production from the reservoir is likely to mitigate release through reduction of available free gas and lowering of reservoir pressure, and not producing may increase the potential for release. We also find that hydrostatic tight‐gas reservoirs are unlikely to act as a continuing source of migrating gas, asmore »
- Authors:
-
- Lawrence Berkeley National Laboratory Berkeley California USA
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1225107
- Alternate Identifier(s):
- OSTI ID: 1213450; OSTI ID: 1785855
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Published Article
- Journal Name:
- Water Resources Research
- Additional Journal Information:
- Journal Name: Water Resources Research Journal Volume: 51 Journal Issue: 4; Journal ID: ISSN 0043-1397
- Publisher:
- American Geophysical Union (AGU)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 03 NATURAL GAS
Citation Formats
Reagan, Matthew T., Moridis, George J., Keen, Noel D., and Johnson, Jeffrey N. Numerical simulation of the environmental impact of hydraulic fracturing of tight/shale gas reservoirs on near‐surface groundwater: Background, base cases, shallow reservoirs, short‐term gas, and water transport. United States: N. p., 2015.
Web. doi:10.1002/2014WR016086.
Reagan, Matthew T., Moridis, George J., Keen, Noel D., & Johnson, Jeffrey N. Numerical simulation of the environmental impact of hydraulic fracturing of tight/shale gas reservoirs on near‐surface groundwater: Background, base cases, shallow reservoirs, short‐term gas, and water transport. United States. https://doi.org/10.1002/2014WR016086
Reagan, Matthew T., Moridis, George J., Keen, Noel D., and Johnson, Jeffrey N. Sat .
"Numerical simulation of the environmental impact of hydraulic fracturing of tight/shale gas reservoirs on near‐surface groundwater: Background, base cases, shallow reservoirs, short‐term gas, and water transport". United States. https://doi.org/10.1002/2014WR016086.
@article{osti_1225107,
title = {Numerical simulation of the environmental impact of hydraulic fracturing of tight/shale gas reservoirs on near‐surface groundwater: Background, base cases, shallow reservoirs, short‐term gas, and water transport},
author = {Reagan, Matthew T. and Moridis, George J. and Keen, Noel D. and Johnson, Jeffrey N.},
abstractNote = {Abstract Hydrocarbon production from unconventional resources and the use of reservoir stimulation techniques, such as hydraulic fracturing, has grown explosively over the last decade. However, concerns have arisen that reservoir stimulation creates significant environmental threats through the creation of permeable pathways connecting the stimulated reservoir with shallower freshwater aquifers, thus resulting in the contamination of potable groundwater by escaping hydrocarbons or other reservoir fluids. This study investigates, by numerical simulation, gas and water transport between a shallow tight‐gas reservoir and a shallower overlying freshwater aquifer following hydraulic fracturing operations, if such a connecting pathway has been created. We focus on two general failure scenarios: (1) communication between the reservoir and aquifer via a connecting fracture or fault and (2) communication via a deteriorated, preexisting nearby well. We conclude that the key factors driving short‐term transport of gas include high permeability for the connecting pathway and the overall volume of the connecting feature. Production from the reservoir is likely to mitigate release through reduction of available free gas and lowering of reservoir pressure, and not producing may increase the potential for release. We also find that hydrostatic tight‐gas reservoirs are unlikely to act as a continuing source of migrating gas, as gas contained within the newly formed hydraulic fracture is the primary source for potential contamination. Such incidents of gas escape are likely to be limited in duration and scope for hydrostatic reservoirs. Reliable field and laboratory data must be acquired to constrain the factors and determine the likelihood of these outcomes.},
doi = {10.1002/2014WR016086},
journal = {Water Resources Research},
number = 4,
volume = 51,
place = {United States},
year = {Sat Apr 18 00:00:00 EDT 2015},
month = {Sat Apr 18 00:00:00 EDT 2015}
}
https://doi.org/10.1002/2014WR016086
Web of Science
Works referenced in this record:
Gas Flow Tightly Coupled to Elastoplastic Geomechanics for Tight and Shale Gas Reservoirs: Material Failure and Enhanced Permeability
conference, April 2013
- Kim, Jihoon; Moridis, George J.
- SPE Americas Unconventional Resources Conference
Hydraulic Fracturing 101: What Every Representative, Environmentalist, Regulator, Reporter, Investor, University Researcher, Neighbor and Engineer Should Know About Estimating Frac Risk and Improving Frac Performance in Unconventional Gas and Oil Wells
conference, April 2013
- King, George Everette
- SPE Hydraulic Fracturing Technology Conference
Wellbore integrity analysis of a natural CO2 producer
journal, March 2010
- Crow, Walter; Carey, J. William; Gasda, Sarah
- International Journal of Greenhouse Gas Control, Vol. 4, Issue 2
Mercury Capillary Pressure Measurements on Barnett Core
journal, August 2013
- Sigal, Richard F.
- SPE Reservoir Evaluation & Engineering, Vol. 16, Issue 04
Least squares quantization in PCM
journal, March 1982
- Lloyd, S.
- IEEE Transactions on Information Theory, Vol. 28, Issue 2
A Critical Review of the Risks to Water Resources from Unconventional Shale Gas Development and Hydraulic Fracturing in the United States
journal, March 2014
- Vengosh, Avner; Jackson, Robert B.; Warner, Nathaniel
- Environmental Science & Technology, Vol. 48, Issue 15
Water resource impacts during unconventional shale gas development: The Pennsylvania experience
journal, June 2014
- Brantley, Susan L.; Yoxtheimer, Dave; Arjmand, Sina
- International Journal of Coal Geology, Vol. 126
Evidence and mechanisms for Appalachian Basin brine migration into shallow aquifers in NE Pennsylvania, USA
journal, March 2014
- Llewellyn, Garth T.
- Hydrogeology Journal, Vol. 22, Issue 5
Multiphase Non-Darcy Flow in Proppant Packs
conference, April 2013
- Barree, Robert David; Conway, Michael
- SPE Annual Technical Conference and Exhibition
Oil and gas wells and their integrity: Implications for shale and unconventional resource exploitation
journal, September 2014
- Davies, Richard J.; Almond, Sam; Ward, Robert S.
- Marine and Petroleum Geology, Vol. 56
Fracture Propagation, Fluid Flow, and Geomechanics of Water-Based Hydraulic Fracturing in Shale Gas Systems and Electromagnetic Geophysical Monitoring of Fluid Migration
conference, February 2014
- Kim, Jihoon; Um, Evan Schankee; Moridis, George J.
- SPE Hydraulic Fracturing Technology Conference
Impact of Shale Gas Development on Regional Water Quality
journal, May 2013
- Vidic, R. D.; Brantley, S. L.; Vandenbossche, J. M.
- Science, Vol. 340, Issue 6134
Groundwater Protection and Unconventional Gas Extraction: The Critical Need for Field-Based Hydrogeological Research: R.E. Jackson et al. Ground Water xx, no. x: xx-xx
journal, June 2013
- Jackson, R. E.; Gorody, A. W.; Mayer, B.
- Groundwater, Vol. 51, Issue 4
Constraints on Upward Migration of Hydraulic Fracturing Fluid and Brine: S.A. Flewelling and M. Sharma Ground Water xx, no. x: xx-xx
journal, July 2013
- Flewelling, Samuel A.; Sharma, Manu
- Groundwater, Vol. 52, Issue 1
Methane contamination of drinking water accompanying gas-well drilling and hydraulic fracturing
journal, May 2011
- Osborn, S. G.; Vengosh, A.; Warner, N. R.
- Proceedings of the National Academy of Sciences, Vol. 108, Issue 20
Hydraulic fracture height limits and fault interactions in tight oil and gas formations: HYDRAULIC FRACTURE HEIGHTS LIMITS
journal, July 2013
- Flewelling, Samuel A.; Tymchak, Matthew P.; Warpinski, Norm
- Geophysical Research Letters, Vol. 40, Issue 14
Development of the T+M coupled flow–geomechanical simulator to describe fracture propagation and coupled flow–thermal–geomechanical processes in tight/shale gas systems
journal, October 2013
- Kim, Jihoon; Moridis, George J.
- Computers & Geosciences, Vol. 60
How permeable are clays and shales?
journal, February 1994
- Neuzil, C. E.
- Water Resources Research, Vol. 30, Issue 2
Modeling of fault reactivation and induced seismicity during hydraulic fracturing of shale-gas reservoirs
journal, July 2013
- Rutqvist, Jonny; Rinaldi, Antonio P.; Cappa, Frédéric
- Journal of Petroleum Science and Engineering, Vol. 107
Evaluation of the Potential for Gas and CO2 Leakage Along Wellbores
journal, March 2009
- Watson, Theresa L.; Bachu, Stefan
- SPE Drilling & Completion, Vol. 24, Issue 01
Evaluation of Methane Sources in Groundwater in Northeastern Pennsylvania: L.J. Molofsky et al. Ground Water xx, no. xx: xx-xx
journal, April 2013
- Molofsky, Lisa J.; Connor, John A.; Wylie, Albert S.
- Groundwater, Vol. 51, Issue 3
Hydraulic-Fracture-Height Growth: Real Data
journal, February 2012
- Fisher, M. Kevin; Warpinski, Norman R.
- SPE Production & Operations, Vol. 27, Issue 01
MeshVoro: A three-dimensional Voronoi mesh building tool for the TOUGH family of codes
journal, September 2014
- Freeman, C. M.; Boyle, K. L.; Reagan, M.
- Computers & Geosciences, Vol. 70
Increased stray gas abundance in a subset of drinking water wells near Marcellus shale gas extraction
journal, June 2013
- Jackson, R. B.; Vengosh, A.; Darrah, T. H.
- Proceedings of the National Academy of Sciences, Vol. 110, Issue 28
The RealGas and RealGasH2O options of the TOUGH+ code for the simulation of coupled fluid and heat flow in tight/shale gas systems
journal, April 2014
- Moridis, George J.; Freeman, Craig M.
- Computers & Geosciences, Vol. 65
Potential Contaminant Pathways from Hydraulically Fractured Shale Aquifers
journal, September 2012
- Saiers, James E.; Barth, Erica
- Groundwater, Vol. 50, Issue 6
Hydraulic fractures: How far can they go?
journal, November 2012
- Davies, Richard J.; Mathias, Simon A.; Moss, Jennifer
- Marine and Petroleum Geology, Vol. 37, Issue 1
Wellbore Permeability Estimates from Vertical Interference Testing of Existing Wells
journal, January 2013
- Gasda, Sarah E.; Celia, Michael A.; Wang, James Z.
- Energy Procedia, Vol. 37
A numerical study of performance for tight gas and shale gas reservoir systems
journal, August 2013
- Freeman, C. M.; Moridis, G.; Ilk, D.
- Journal of Petroleum Science and Engineering, Vol. 108
TOUGH2 User's Guide Version 2
report, November 1999
- Pruess, K.; Oldenburg, C.M.; Moridis, G.J.
- LBNL--43134
Hydraulic fracturing in faulted sedimentary basins: Numerical simulation of potential contamination of shallow aquifers over long time scales: HYDRAULIC FRACTURING IN FAULTED SEDIMENTARY BASINS
journal, December 2013
- Gassiat, Claire; Gleeson, Tom; Lefebvre, René
- Water Resources Research, Vol. 49, Issue 12
Hydraulic fracturing in unconventional gas reservoirs: risks in the geological system, part 2: Modelling the transport of fracturing fluids, brine and methane
journal, June 2013
- Kissinger, Alexander; Helmig, Rainer; Ebigbo, Anozie
- Environmental Earth Sciences, Vol. 70, Issue 8
A Closed-form Equation for Predicting the Hydraulic Conductivity of Unsaturated Soils1
journal, January 1980
- van Genuchten, M. Th.
- Soil Science Society of America Journal, Vol. 44, Issue 5
Carbon and hydrogen isotopic evidence for the origin of combustible gases in water-supply wells in north-central Pennsylvania
journal, December 2010
- Révész, Kinga M.; Breen, Kevin J.; Baldassare, Alfred J.
- Applied Geochemistry, Vol. 25, Issue 12
Geochemical evidence for possible natural migration of Marcellus Formation brine to shallow aquifers in Pennsylvania
journal, July 2012
- Warner, Nathaniel R.; Jackson, Robert B.; Darrah, Thomas H.
- Proceedings of the National Academy of Sciences, Vol. 109, Issue 30
The fate of residual treatment water in gas shale
journal, September 2014
- Engelder, Terry; Cathles, Lawrence M.; Bryndzia, L. Taras
- Journal of Unconventional Oil and Gas Resources, Vol. 7
A Numerical Study of Microscale Flow Behavior in Tight Gas and Shale Gas Reservoir Systems
journal, April 2011
- Freeman, C. M.; Moridis, G. J.; Blasingame, T. A.
- Transport in Porous Media, Vol. 90, Issue 1
High-Resolution Numerical Modeling of Complex and Irregular Fracture Patterns in Shale-Gas Reservoirs and Tight Gas Reservoirs
journal, August 2013
- Olorode, Olufemi; Freeman, Craig M.; Moridis, George
- SPE Reservoir Evaluation & Engineering, Vol. 16, Issue 04