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SHALES AS SEALS AND UNCONVENTIONAL
STORAGE RESERVOIRS
Project Number 1022403
Robert Dilmore
Office of R&D, Predictive Geosciences Division
U.S. DOE, National Energy Technology Laboratory
U.S. Department of Energy
National Energy Technology Laboratory
Carbon Storage R&D Project Review Meeting
Transforming Technology through Integration and Collaboration
August 18-20, 2015
2
Benefit to the Program
• Carbon Storage Program Goals Addressed:
– Support industry’s ability to predict CO2 storage
capacity in (unconventional) geologic formations to
within ± 30 percent
– Ensuring 99 percent storage permanence.
• Project Benefits:
– Improve understanding of injection/storage
performance of unconventional formations
– Inform efficiency estimation for resource assessment
– Insights feeding to seal characterization in integrated
assessment of risk
3
Presentation Outline
• Project Overview
– Introduction to research area
– Project Description
• Progress to Date on Key Technical Issues
• Plans for Remaining Technical Issues
• Tie in with other work
• Project wrap-up
4
Project Overview:
Goals and Objectives
• Project Objectives
– Evaluate matrix response to CO2 exposure (sorption,
swelling/shrinkage, geochemical interactions)
– Characterize effective permeability and porosity of
shale to CO2
– Experimental and simulation-based performance of
CO2 storage in/transport through shale with natural
and engineered fractures
– Reduced order characterization to improve resource
estimation and quantitative risk assessment of
geologic CO2 storage
Sources: HF illustration from National Energy Technology Laboratory (NETL), 2011), Micro CT images by Rebecca Rodriguez, ORISE; Shale image from Reference:
Lacazette , A. and Engelder, T. (1992) Fluid-driven cyclic propagation of a joint in the Ithaca Siltstone, Appalachian Basin, New York: p. 297 - 323 in B. Evans and T.-F. Wong
(editors): Fault Mechanics and Transport Properties of Rocks; a festschrift in honor of W. F. Brace: Academic Press, San Diego.; NETL Carbon Storage Atlas IV (2012)
Shales as Seals
Shales as
Storage
Reservoirs
Technical Scope
5
Considering shale matrix and fracture
dynamcis
SOURCE: Warren, J.E. and Root, P.J.: "The
Behavior of Naturally Fractured Reservoirs,"
SPEJ (Sept.1963) 245-255.
Building on previous related work
evaluating potential for CO2 storage and enhanced
recovery in depleted shale gas formations
Industrial Carbon
Management Initiative
Carbon Storage
Depleted Shale Fields
Representing Fracture Networks
Semi-stochastic fracture
Network
Discrete Transverse
Fracture Planes
Crushed Zone
Representation
Semi-stochastic fracture
network and flow modeling
Modified dual porosity,
multiphase, compositional,
multidimensional flow model
Discrete Fracture
Modeling coupled
with conventional
reservoir simulation
Multiple influences contribute to
shale response to CO2 exposure
9
Matrix
Effective
Permeaility
Relative
Permeability
Effects
Stress
Dependence of
Permeability and
Porosity
TOC and
Kerogen
Type
Formation
Initial State
and
Flooding
Scheme
Clay Type
Fluid
Composition
and PVT
properties
Age,
Depositional
History,
Thermal
Maturity
Wettability
and
Contact
Angle
Hydration
State
Swelling /
Shrinkage
Behavior
Natural
Fracture
Network
Properties
Fracture
Dynamics
Proppant
Distribution
Efficiency
Matrix
Heteroge
nietiy
Matrix
Permeability
Hysteresis
Stimulation
Details of
Engineered
Fractures
Single and MultiPhase Flow from Micro to
Reservoir Scale
MICRO-SCALE DATA COLLECTION (CT, SEM,
ETC)
DATA CONVERSION
AND COMPUTATIONAL
FLUID DYNAMICS
Shale Density
from CT Scan
vs Well Log
MULTISCALE DATA
ANALYSIS
Flow in
fractures and
pore space
RESERVOIR-SCALE
MODELING
Moore – Shales at All Scales – June 9th, 2015
Shales as Seals and
Unconventional Reservoirs
• Subtask 3.1 Understanding Permeability, Residual Saturation,
and Porosity in Shale to Reduce Uncertainty in Long-Term CO2
Storage and Efficiency
– Understanding permeability, porosity in unfractured shale matrix
– Characterize the influence of shale swelling in response to CO2 uptake
on fracture conductivity in shales
– Simulation of fractured shale formation response to CO2 uptake
• Subtask 3.2 Improve Characterization of Physical Changes in
Shale with Exposure to CO2
– Sorption and Characterizing Mechanisms of CO2-Shale Interactions
– Swelling and Shrinkage in Shale Matrix in Response to CO2 Uptake
– Mineralogical, Geochemical, and Pore Characteristics of Shales
• Subtask 3.3 Field Activity to Obtain, Log, Ship, and Store Shale
Core from South Dakota
MEASURING EFFECTIVE PERMEABILITY, POROSITY,
AND CAPILLARY ENTRY PRESSURE
Source: Q.R. Passey, K.M. Bohacs, W.L. Esch, R. Klimentidis, and S.
Sinha. My Source Rock is Now My Reservoir - Geologic and
Petrophysical Characterization of Shale-Gas Reservoirs. Search and
Discovery Article #80231 (2012AAPG Discovery Pages
Precision Petrophysical Analysis
Laboratory (RaSSCAL
prototype)
Effective porosity and
permeability of shale
to CO2/CH4 over
range of effective
stress, capillary entry
pressure, gas
slippage, and strain
measurements
GRI Method: Walls, J.D., Nur, A.M., and Bourbie, T., 1982, Effects of pressure and partial water saturation on gas permeability in tight sands: experimental
results: Journal of Petroleum Technology, v. 34, No. 4, p. 930-936 (April)
Subtask 3.1 Understanding Permeability, Residual
Saturation, and Porosity in Shale to Reduce Uncertainty in
Long-Term CO2 Storage and Efficiency
Randolph stead-state core analysis
laboratory (RaSSCAL) apparatus
• Steady-state flow measurement, research quality data
• Capable of reproducing in-situ net stress, and measuring gas flow
under partial liquid saturation.
• Can also measure pore volume to gas, sorption isotherms and PV
compressibility using N2, CH4 or CO2
• Uses stable gas pressure as a reference for flow measurement
• Temperature controlled
• Stable to one part in 500,000
• Target flow measurement is 10-6 standard cm3 per second
Shale matrix response to CO2 exposure
Autolab 1500 – strain measurements with CO2 uptake
• Storage capacity of geologic samples
• Permeability of tight or moderately permeable samples
• Elastic constants via strain gages and linear variable differential transducers
• Sonic velocity and resistivity - unique “sonic/ resistive fingerprints” of the
representative samples for remote “on-site” monitoring of subsurface fluid
storage and motion.
Autolab 1500 (NER, Inc.)
Swelling of smectite clay
15
REFERENCE: de Jong, S.M., Spiers, C.J., Busch, A. Development of swelling strain in smectite clays through
exposure to CO2. International Journal of Greenhouse Gas Control 24(2014) 149-161.
Observing bulk mechanical swelling of
unconfined clays and shales (3.2)
STx-1b
~1500psia CO2~900psia CO2Vac
Swelling ofTexas montmorillonite (Hong et al. )
• Fracture in shaly limestone
• Used for looking at changes in fracture
topography and aperture under cyclic
pressure
• Flow in fracture (DI H2O)
• Utilize isolated fracture image to
calculate apertures (bV, beff & bH)
– Isolation via imageJ
• Typically can use Otsu thresholding
• In complex fractures use manual
thresholding via selective histogram
Isolating Fractures
Fracture in Shaley Limestone
Moore – Shales at All Scales – June 9th, 2015
Fracture Hysteresis Under Cyclic
Pressure
Source: Moore – Shales at All Scales – June 9th, 2015
Characterize fracture conductivity change in
response to shale swelling with CO2
Source: Crandall, D. Gill, M., McIntyre, D.L., and Bromhal, G.S. (2013) Coupling Mechanical Changes of a Fracture to Hydraulic Changes
SPE 165695-MS. prepared for SPE Eastern Regional Meeting held in Pittsburgh, Pennsylvania, USA, 20–22 August 2013. © 2013, SPE
Industrial CT Scanner
Does CO2 sorption lead to swelling
in shales, reducing effective
fracture aperture and fracture
hydraulic conductivity?
Top
16
Hour
Top
36
Hour
Top
118
Hour
Bottom 16
Hour
Bottom 36
Hour
Bottom 118
Hour
Shale core without confining
pressure. Fractures still present.
(Scale in millimeters.)
Fractured shale response to CO2 exposure
Sample courtesy of UND EERC
Lower Bakken shale
TOC >20 wt%
Permeability evolution calculations for
the top portion of the fracture.
21
Sample courtesy of UND EERC; data generated by Moore, Crandall et al.
Modeling CO2 Flow in Fractured Shale
Incorporating matrix swelling/shrinkage effects
22
Images from: Sams, N. Overview of NFFLOW & FRACGEN. June 3, 2013
FRACGEN stochastically
generates fracture networks
NFFLOW models flow in discrete
fracture networks
https://edx.netl.doe.gov/tools
Dynamic permeability model to account for
clay swelling during CO2 invasion into shale
reservoir
• based on the induced strain – effective
horizontal stress relationship
• Applies a transmissivity modifier to the
fracture segment transporting the CO2
23
Subtask 3.3 South Dakota Core Acquisition and Logging
Subtask 3.3 South
Dakota Core Acquisition
and Logging
• MOU between DOE and South Dakota School Mines
&Technology and South Dakota Geological Survey.
Treedam core (Pierre shale)
• Treedam core from South Dakota shipped from Rapid
City, SD to Morgantown, WV (January)
• Logging using Multi-Scanner Core Logger (MSCL)
complete, source rock analysis tests complete
• Preliminary tests in core-flooding unit
Presho core
• Completed coring in South Dakota
– Pierre Shale section, and all of Niobrara Formation
below it.
– total of about 900 feet of core available for processing.
• Brought to NETL and scanning with MSCL
• SDGS is going to try to log the hole at Presho; MSCL
data on the core will provide tie point back to the rock
(or, If the field logging attempt fails, the MSCL scan will
be the only petrophysical data)
• Thin section billets, source rock analysis chips, and a
dozen or so core plugs will be available
Dr. Foster Sawyer of SDSM&T pointing to the
Pierre-Niobrara contact at an outcrop location along
the Missouri River south of I-90.
Pierre shale
Relationship to Other NETL
ORD Research
• CO2 Storage Task 4: National-Scale
Resource Estimation Methodology
Development
• National Risk Assessment Partnership –
NSealR fractured seal model
• NETL discrete fracture flow simulator –
NFFLOW – shale storage and seal
performance
26
Tie in: Storage Resource Assessment
Methodology for Unconventional Formations
27
Tie in: NRAP Seal Leakage Characterization
Tool for estimating leakage through fractured seal (NSealR)
• Uses inputs of pressure and
saturation at the reservoir/seal
interface
• Computes two-phase (brine and
supercritical CO2) flux and
Includes fluid thermal/pressure
dependence
• Module to compute leakage
through a Barrier (Seal) Layer
• Various levels of complexity to
model barrier response
• Accounts for effective stress
dependence of aperture
• Estimate flux through a fractured or perforated seal
• Account for storage outside of primary target zone
Accomplishments to Date
– Established workflow and demonstrated capability to
measure change in fracture aperture and permeability in
response to stress cycling and matrix volumetric change
– Commissioned a high resolution steady state
permeameter to collect research-quality permeability
measurements in shale matrix
– Initiated development of matrix shrinkage/swelling and
fracture aperture dynamics model in
NFFLOW/FRACGEN
29
Synergy Opportunities
– Continued collaboration with South Dakota
School Mines &Technology and South Dakota
Geological Survey, RCSPs, industry
collaborators
– Suggest interlab comparison as a means of
cross-validation and method refinement
30
NETL Research Presentations and Posters
TUESDAY, AUGUST 18, 2015
• 2:15 PM Resource Assessment - Angela Goodman
• 5:10 PM Catalytic Conversion of CO2 to Industrial Chemicals - Doug Kauffman
• 6:00 p.m. Poster Session (CORE R&D, NRAP, and RCSPs)
1. Dave Blaushild - Perfluorocarbon Tracer (PFT) Analysis to Support the South West Partnership,
2. Liwei Zhang - Numerical simulation of pressure and CO2 saturation above the fractured seal as a result of CO2 injection: implications
for monitoring network design
3. NRAP, EDX, and NATCARB Grant Bromhal, Bob Dilmore, Kelly Rose, Maneesh Sharma
WEDNESDAY, AUGUST 19, 2015
• 1:15 PM Monitoring the Extent of CO2 Plume and Pressure Perturbation - Bill Harbert
• 2:05 PM Reservoir and Seal Performance - Dustin Crandall
• 3:45 PM Monitoring Groundwater Impacts - Christina Lopano
• 5:30 p.m. Poster Session (SubTER, NRAP, and EFRCs)
1. Kelly Rose - Evaluating Induced Seismicity with Geoscience Computing & Big Data – A multi-variate examination of the cause(s) of
increasing induced seismicity events
2. NRAP, EDX, and NATCARB Grant Bromhal, Bob Dilmore, Kelly Rose, Maneesh Sharma
3. John Tudek- EFRC
4. Sean Sanguinito NETL CO2 SCREEN)
THURSDAY, AUGUST 20, 2015
• 11:25 AM Shales as Seals and Unconventional Reservoirs for CO2– Robert Dilmore
31
Robert Dilmore, Ph.D., PE
Research Engineer
NETL ORD, Predictive Geosciences Division
dilmore@netl.doe.gov
(412)386-5763
Shaly limestone
Marcellus
sample (F2HB)
from Facies 2,
with several
dense bivalve
fossils in its
interior.
Thanks for
listening!

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SHALES AS SEALS AND UNCONVENTIONAL STORAGE RESERVOIRS robert dilmore doe netl

  • 1. SHALES AS SEALS AND UNCONVENTIONAL STORAGE RESERVOIRS Project Number 1022403 Robert Dilmore Office of R&D, Predictive Geosciences Division U.S. DOE, National Energy Technology Laboratory U.S. Department of Energy National Energy Technology Laboratory Carbon Storage R&D Project Review Meeting Transforming Technology through Integration and Collaboration August 18-20, 2015
  • 2. 2 Benefit to the Program • Carbon Storage Program Goals Addressed: – Support industry’s ability to predict CO2 storage capacity in (unconventional) geologic formations to within ± 30 percent – Ensuring 99 percent storage permanence. • Project Benefits: – Improve understanding of injection/storage performance of unconventional formations – Inform efficiency estimation for resource assessment – Insights feeding to seal characterization in integrated assessment of risk
  • 3. 3 Presentation Outline • Project Overview – Introduction to research area – Project Description • Progress to Date on Key Technical Issues • Plans for Remaining Technical Issues • Tie in with other work • Project wrap-up
  • 4. 4 Project Overview: Goals and Objectives • Project Objectives – Evaluate matrix response to CO2 exposure (sorption, swelling/shrinkage, geochemical interactions) – Characterize effective permeability and porosity of shale to CO2 – Experimental and simulation-based performance of CO2 storage in/transport through shale with natural and engineered fractures – Reduced order characterization to improve resource estimation and quantitative risk assessment of geologic CO2 storage
  • 5. Sources: HF illustration from National Energy Technology Laboratory (NETL), 2011), Micro CT images by Rebecca Rodriguez, ORISE; Shale image from Reference: Lacazette , A. and Engelder, T. (1992) Fluid-driven cyclic propagation of a joint in the Ithaca Siltstone, Appalachian Basin, New York: p. 297 - 323 in B. Evans and T.-F. Wong (editors): Fault Mechanics and Transport Properties of Rocks; a festschrift in honor of W. F. Brace: Academic Press, San Diego.; NETL Carbon Storage Atlas IV (2012) Shales as Seals Shales as Storage Reservoirs Technical Scope 5
  • 6. Considering shale matrix and fracture dynamcis SOURCE: Warren, J.E. and Root, P.J.: "The Behavior of Naturally Fractured Reservoirs," SPEJ (Sept.1963) 245-255.
  • 7. Building on previous related work evaluating potential for CO2 storage and enhanced recovery in depleted shale gas formations Industrial Carbon Management Initiative Carbon Storage Depleted Shale Fields
  • 8. Representing Fracture Networks Semi-stochastic fracture Network Discrete Transverse Fracture Planes Crushed Zone Representation Semi-stochastic fracture network and flow modeling Modified dual porosity, multiphase, compositional, multidimensional flow model Discrete Fracture Modeling coupled with conventional reservoir simulation
  • 9. Multiple influences contribute to shale response to CO2 exposure 9 Matrix Effective Permeaility Relative Permeability Effects Stress Dependence of Permeability and Porosity TOC and Kerogen Type Formation Initial State and Flooding Scheme Clay Type Fluid Composition and PVT properties Age, Depositional History, Thermal Maturity Wettability and Contact Angle Hydration State Swelling / Shrinkage Behavior Natural Fracture Network Properties Fracture Dynamics Proppant Distribution Efficiency Matrix Heteroge nietiy Matrix Permeability Hysteresis Stimulation Details of Engineered Fractures
  • 10. Single and MultiPhase Flow from Micro to Reservoir Scale MICRO-SCALE DATA COLLECTION (CT, SEM, ETC) DATA CONVERSION AND COMPUTATIONAL FLUID DYNAMICS Shale Density from CT Scan vs Well Log MULTISCALE DATA ANALYSIS Flow in fractures and pore space RESERVOIR-SCALE MODELING Moore – Shales at All Scales – June 9th, 2015
  • 11. Shales as Seals and Unconventional Reservoirs • Subtask 3.1 Understanding Permeability, Residual Saturation, and Porosity in Shale to Reduce Uncertainty in Long-Term CO2 Storage and Efficiency – Understanding permeability, porosity in unfractured shale matrix – Characterize the influence of shale swelling in response to CO2 uptake on fracture conductivity in shales – Simulation of fractured shale formation response to CO2 uptake • Subtask 3.2 Improve Characterization of Physical Changes in Shale with Exposure to CO2 – Sorption and Characterizing Mechanisms of CO2-Shale Interactions – Swelling and Shrinkage in Shale Matrix in Response to CO2 Uptake – Mineralogical, Geochemical, and Pore Characteristics of Shales • Subtask 3.3 Field Activity to Obtain, Log, Ship, and Store Shale Core from South Dakota
  • 12. MEASURING EFFECTIVE PERMEABILITY, POROSITY, AND CAPILLARY ENTRY PRESSURE Source: Q.R. Passey, K.M. Bohacs, W.L. Esch, R. Klimentidis, and S. Sinha. My Source Rock is Now My Reservoir - Geologic and Petrophysical Characterization of Shale-Gas Reservoirs. Search and Discovery Article #80231 (2012AAPG Discovery Pages Precision Petrophysical Analysis Laboratory (RaSSCAL prototype) Effective porosity and permeability of shale to CO2/CH4 over range of effective stress, capillary entry pressure, gas slippage, and strain measurements GRI Method: Walls, J.D., Nur, A.M., and Bourbie, T., 1982, Effects of pressure and partial water saturation on gas permeability in tight sands: experimental results: Journal of Petroleum Technology, v. 34, No. 4, p. 930-936 (April)
  • 13. Subtask 3.1 Understanding Permeability, Residual Saturation, and Porosity in Shale to Reduce Uncertainty in Long-Term CO2 Storage and Efficiency Randolph stead-state core analysis laboratory (RaSSCAL) apparatus • Steady-state flow measurement, research quality data • Capable of reproducing in-situ net stress, and measuring gas flow under partial liquid saturation. • Can also measure pore volume to gas, sorption isotherms and PV compressibility using N2, CH4 or CO2 • Uses stable gas pressure as a reference for flow measurement • Temperature controlled • Stable to one part in 500,000 • Target flow measurement is 10-6 standard cm3 per second
  • 14. Shale matrix response to CO2 exposure Autolab 1500 – strain measurements with CO2 uptake • Storage capacity of geologic samples • Permeability of tight or moderately permeable samples • Elastic constants via strain gages and linear variable differential transducers • Sonic velocity and resistivity - unique “sonic/ resistive fingerprints” of the representative samples for remote “on-site” monitoring of subsurface fluid storage and motion. Autolab 1500 (NER, Inc.)
  • 15. Swelling of smectite clay 15 REFERENCE: de Jong, S.M., Spiers, C.J., Busch, A. Development of swelling strain in smectite clays through exposure to CO2. International Journal of Greenhouse Gas Control 24(2014) 149-161.
  • 16. Observing bulk mechanical swelling of unconfined clays and shales (3.2) STx-1b ~1500psia CO2~900psia CO2Vac Swelling ofTexas montmorillonite (Hong et al. )
  • 17. • Fracture in shaly limestone • Used for looking at changes in fracture topography and aperture under cyclic pressure • Flow in fracture (DI H2O) • Utilize isolated fracture image to calculate apertures (bV, beff & bH) – Isolation via imageJ • Typically can use Otsu thresholding • In complex fractures use manual thresholding via selective histogram Isolating Fractures Fracture in Shaley Limestone Moore – Shales at All Scales – June 9th, 2015
  • 18. Fracture Hysteresis Under Cyclic Pressure Source: Moore – Shales at All Scales – June 9th, 2015
  • 19. Characterize fracture conductivity change in response to shale swelling with CO2 Source: Crandall, D. Gill, M., McIntyre, D.L., and Bromhal, G.S. (2013) Coupling Mechanical Changes of a Fracture to Hydraulic Changes SPE 165695-MS. prepared for SPE Eastern Regional Meeting held in Pittsburgh, Pennsylvania, USA, 20–22 August 2013. © 2013, SPE Industrial CT Scanner Does CO2 sorption lead to swelling in shales, reducing effective fracture aperture and fracture hydraulic conductivity?
  • 20. Top 16 Hour Top 36 Hour Top 118 Hour Bottom 16 Hour Bottom 36 Hour Bottom 118 Hour Shale core without confining pressure. Fractures still present. (Scale in millimeters.) Fractured shale response to CO2 exposure Sample courtesy of UND EERC Lower Bakken shale TOC >20 wt%
  • 21. Permeability evolution calculations for the top portion of the fracture. 21 Sample courtesy of UND EERC; data generated by Moore, Crandall et al.
  • 22. Modeling CO2 Flow in Fractured Shale Incorporating matrix swelling/shrinkage effects 22 Images from: Sams, N. Overview of NFFLOW & FRACGEN. June 3, 2013 FRACGEN stochastically generates fracture networks NFFLOW models flow in discrete fracture networks https://edx.netl.doe.gov/tools
  • 23. Dynamic permeability model to account for clay swelling during CO2 invasion into shale reservoir • based on the induced strain – effective horizontal stress relationship • Applies a transmissivity modifier to the fracture segment transporting the CO2 23
  • 24. Subtask 3.3 South Dakota Core Acquisition and Logging
  • 25. Subtask 3.3 South Dakota Core Acquisition and Logging • MOU between DOE and South Dakota School Mines &Technology and South Dakota Geological Survey. Treedam core (Pierre shale) • Treedam core from South Dakota shipped from Rapid City, SD to Morgantown, WV (January) • Logging using Multi-Scanner Core Logger (MSCL) complete, source rock analysis tests complete • Preliminary tests in core-flooding unit Presho core • Completed coring in South Dakota – Pierre Shale section, and all of Niobrara Formation below it. – total of about 900 feet of core available for processing. • Brought to NETL and scanning with MSCL • SDGS is going to try to log the hole at Presho; MSCL data on the core will provide tie point back to the rock (or, If the field logging attempt fails, the MSCL scan will be the only petrophysical data) • Thin section billets, source rock analysis chips, and a dozen or so core plugs will be available Dr. Foster Sawyer of SDSM&T pointing to the Pierre-Niobrara contact at an outcrop location along the Missouri River south of I-90. Pierre shale
  • 26. Relationship to Other NETL ORD Research • CO2 Storage Task 4: National-Scale Resource Estimation Methodology Development • National Risk Assessment Partnership – NSealR fractured seal model • NETL discrete fracture flow simulator – NFFLOW – shale storage and seal performance 26
  • 27. Tie in: Storage Resource Assessment Methodology for Unconventional Formations 27
  • 28. Tie in: NRAP Seal Leakage Characterization Tool for estimating leakage through fractured seal (NSealR) • Uses inputs of pressure and saturation at the reservoir/seal interface • Computes two-phase (brine and supercritical CO2) flux and Includes fluid thermal/pressure dependence • Module to compute leakage through a Barrier (Seal) Layer • Various levels of complexity to model barrier response • Accounts for effective stress dependence of aperture • Estimate flux through a fractured or perforated seal • Account for storage outside of primary target zone
  • 29. Accomplishments to Date – Established workflow and demonstrated capability to measure change in fracture aperture and permeability in response to stress cycling and matrix volumetric change – Commissioned a high resolution steady state permeameter to collect research-quality permeability measurements in shale matrix – Initiated development of matrix shrinkage/swelling and fracture aperture dynamics model in NFFLOW/FRACGEN 29
  • 30. Synergy Opportunities – Continued collaboration with South Dakota School Mines &Technology and South Dakota Geological Survey, RCSPs, industry collaborators – Suggest interlab comparison as a means of cross-validation and method refinement 30
  • 31. NETL Research Presentations and Posters TUESDAY, AUGUST 18, 2015 • 2:15 PM Resource Assessment - Angela Goodman • 5:10 PM Catalytic Conversion of CO2 to Industrial Chemicals - Doug Kauffman • 6:00 p.m. Poster Session (CORE R&D, NRAP, and RCSPs) 1. Dave Blaushild - Perfluorocarbon Tracer (PFT) Analysis to Support the South West Partnership, 2. Liwei Zhang - Numerical simulation of pressure and CO2 saturation above the fractured seal as a result of CO2 injection: implications for monitoring network design 3. NRAP, EDX, and NATCARB Grant Bromhal, Bob Dilmore, Kelly Rose, Maneesh Sharma WEDNESDAY, AUGUST 19, 2015 • 1:15 PM Monitoring the Extent of CO2 Plume and Pressure Perturbation - Bill Harbert • 2:05 PM Reservoir and Seal Performance - Dustin Crandall • 3:45 PM Monitoring Groundwater Impacts - Christina Lopano • 5:30 p.m. Poster Session (SubTER, NRAP, and EFRCs) 1. Kelly Rose - Evaluating Induced Seismicity with Geoscience Computing & Big Data – A multi-variate examination of the cause(s) of increasing induced seismicity events 2. NRAP, EDX, and NATCARB Grant Bromhal, Bob Dilmore, Kelly Rose, Maneesh Sharma 3. John Tudek- EFRC 4. Sean Sanguinito NETL CO2 SCREEN) THURSDAY, AUGUST 20, 2015 • 11:25 AM Shales as Seals and Unconventional Reservoirs for CO2– Robert Dilmore 31
  • 32. Robert Dilmore, Ph.D., PE Research Engineer NETL ORD, Predictive Geosciences Division dilmore@netl.doe.gov (412)386-5763 Shaly limestone Marcellus sample (F2HB) from Facies 2, with several dense bivalve fossils in its interior. Thanks for listening!