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Duvernay Shale

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Journal Article

The impact of organic pores on estimation of overpressure generated by gas generation in organic-rich shale: Example from Devonian Duvernay Shale, Western Canada Sedimentary Basin

Pengwei Wang, Zhuoheng Chen, Kezhen Hu, Xiao Chen
Journal: AAPG Bulletin
Published: 01 September 2023
AAPG Bulletin (2023) 107 (9): 1477–1492.
DOI: https://doi.org/10.1306/12202220005
... Shale of the Western Canada Sedimentary Basin to investigate the impact of organic porosity on prediction of overpressure due to fluid expansion in gas generation windows. A comparison of formation pressure predictions from the application example in the Duvernay Shale demonstrates that the proposed...
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View PDF for article title, The impact of organic pores on estimation of overpressure generated by gas generation in organic-rich <span class="search-highlight">shale</span>: Example from Devonian <span class="search-highlight">Duvernay</span> <span class="search-highlight">Shale</span>, Western Canada Sedimentary Basin
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Journal Article

Phase Behavior in Nanopores and Its Indication for Cyclic Gas Injection in a Volatile Oil Reservoir from Duvernay Shale

Xiangwen Kong, Hongjun Wang, Wei Yu, Ping Wang, Li Liu, Wenjing Zhang
Journal: Lithosphere
Publisher: GSW
Published: 27 July 2022
Lithosphere (2022) 2022 (Special 12): 5261253.
DOI: https://doi.org/10.2113/2022/5261253
...Xiangwen Kong; Hongjun Wang; Wei Yu; Ping Wang; Li Liu; Wenjing Zhang Abstract Duvernay shale spans over 6 million acres with a total resource of 440 billion barrels’ oil equivalent in the Western Canada Sedimentary Basin (WCSB). The oil recovery factors typically decrease with the decreasing...
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View PDF for article title, Phase Behavior in Nanopores and Its Indication for Cyclic Gas Injection in a Volatile Oil Reservoir from <span class="search-highlight">Duvernay</span> <span class="search-highlight">Shale</span>
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Journal Article

Predicting unconventional reservoir potential from wire-line logs: A correlation between compositional and geomechanical properties of the Duvernay shale play of western Alberta, Canada

Marco Venieri, Per K. Pedersen, David W. Eaton
Journal: AAPG Bulletin
Published: 12 May 2021
AAPG Bulletin (2021) 105 (5): 865–881.
DOI: https://doi.org/10.1306/10262019042
... the Duvernay unconventional shale play in western-central Alberta (Canada). Our analysis reveals a high degree of correlation between core-measured mineral components and two wire-line logs: pulsed neutron spectroscopy (PNS) and spectral gamma ray (SGR). In particular, we show that PNS-derived calcium...
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View PDF for article title, Predicting unconventional reservoir potential from wire-line logs: A correlation between compositional and geomechanical properties of the <span class="search-highlight">Duvernay</span> <span class="search-highlight">shale</span> play of western Alberta, Canada
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Journal Article

Seismic reservoir characterization of Duvernay shale with quantitative interpretation and induced seismicity considerations — A case study

Satinder Chopra, Ritesh Kumar Sharma, Amit Kumar Ray, Hossein Nemati, Ray Morin, Brian Schulte, David D’Amico
Journal: Interpretation
Published: 27 February 2017
Interpretation (2017) 5 (2): T185–T197.
DOI: https://doi.org/10.1190/INT-2016-0130.1
.... The oil and gas generation in this shale formation made it the source rock for many oil and gas fields in its vicinity. We attempt to showcase the characterization of Duvernay Formation using 3D multicomponent seismic data and integrating it with the available well log and other relevant data. This has...
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View PDF for article title, Seismic reservoir characterization of <span class="search-highlight">Duvernay</span> <span class="search-highlight">shale</span> with quantitative interpretation and induced seismicity considerations — A case study
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Journal Article

Applicability of decision tree-based machine learning models in the prediction of core-calibrated shale facies from wireline logs in the late Devonian Duvernay Formation, Alberta, Canada

Elisabeth G. Rau, Scott C. James, Kathy Breen, Stacy C. Atchley, Anna M. Thorson, David W. Yeates
Journal: Interpretation
Published: 14 July 2022
Interpretation (2022) 10 (3): T555–T566.
DOI: https://doi.org/10.1190/INT-2021-0239.1
... is composed of organic-rich mudrocks and carbonates and has total organic carbon (TOC) values ranging from 3 wt% to 5 wt% ( Preston et al., 2016 ). As a result, since 2011, the Duvernay Formation has been developed as a shale reservoir through horizontal multistage fracturing ( Preston et al., 2016...
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View PDF for article title, Applicability of decision tree-based machine learning models in the prediction of core-calibrated <span class="search-highlight">shale</span> facies from wireline logs in the late Devonian <span class="search-highlight">Duvernay</span> Formation, Alberta, Canada
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Journal Article

A revised method for organic porosity estimation in shale reservoirs using Rock-Eval data: Example from Duvernay Formation in the Western Canada Sedimentary Basin

Zhuoheng Chen, Chunqing Jiang
Journal: AAPG Bulletin
Published: 01 March 2016
AAPG Bulletin (2016) 100 (3): 405–422.
DOI: https://doi.org/10.1306/08261514173
... that organic porosity in the Duvernay Formation ranges greatly from none in immature intervals to >6% in highly mature and organic-rich shale intervals. Scanning electron microscope images of immature and mature organic-rich shale samples of the Duvernay Formation show a progressive increase in organic...
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View PDF for article title, A revised method for organic porosity estimation in <span class="search-highlight">shale</span> reservoirs using Rock-Eval data: Example from <span class="search-highlight">Duvernay</span> Formation in the Western Canada Sedimentary Basin
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Journal Article

A model for porosity evolution in shale reservoirs: An example from the Upper Devonian Duvernay Formation, Western Canada Sedimentary Basin

Tian Dong, Nicholas B. Harris, Julia M. McMillan, Cory E. Twemlow, Brent R. Nassichuk, David L. Bish
Journal: AAPG Bulletin
Published: 15 May 2019
AAPG Bulletin (2019) 103 (5): 1017–1044.
DOI: https://doi.org/10.1306/10261817272
...Tian Dong; Nicholas B. Harris; Julia M. McMillan; Cory E. Twemlow; Brent R. Nassichuk; David L. Bish ABSTRACT The influence of thermal maturity on porosity in shale samples from the Upper Devonian Duvernay Formation is examined. The samples span a maturity range from immature to the wet gas window...
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View PDF for article title, A model for porosity evolution in <span class="search-highlight">shale</span> reservoirs: An example from the Upper Devonian <span class="search-highlight">Duvernay</span> Formation, Western Canada Sedimentary Basin
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Journal Article

NATURE AND CONTROL OF SHALE BASIN FILL AND ITS EFFECT ON REEF GROWTH AND TERMINATION: UPPER DEVONIAN DUVERNAY AND IRETON FORMATIONS OF ALBERTA, CANADA

F. A. Stoakes
Published: 01 September 1980
Bulletin of Canadian Petroleum Geology (1980) 28 (3): 345–410.
DOI: https://doi.org/10.35767/gscpgbull.28.3.345
...F. A. Stoakes ABSTRACT Within basin-filling shales of the Frasnian Duvernay and Ireton Formations a number of inclined electric log markers indicate the presence of significant submarine topography during deposition. Log markers reflect submarine hardgrounds on the platform and in the basin...
View PDF for article title, NATURE AND CONTROL OF <span class="search-highlight">SHALE</span> BASIN FILL AND ITS EFFECT ON REEF GROWTH AND TERMINATION: UPPER DEVONIAN <span class="search-highlight">DUVERNAY</span> AND IRETON FORMATIONS OF ALBERTA, CANADA
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Image
Sonic transit time versus depth for Duvernay Shale from different wells in the Western Canada Sedimentary Basin. The blue is sonic readings of immature Duvernay Shale, and the red is sonic readings of mature Duvernay Shale.

Sonic transit time versus depth for Duvernay Shale from different wells in ...

Published: 01 September 2023
Figure 1. Sonic transit time versus depth for Duvernay Shale from different wells in the Western Canada Sedimentary Basin. The blue is sonic readings of immature Duvernay Shale, and the red is sonic readings of mature Duvernay Shale.
Image
The distribution of Duvernay Shale in central Alberta, Canada, showing the lateral distribution of Duvernay sediments and core sample sites (well locations) in Alberta (modified from Rokosh et al., 2012). The inset at the upper left corner shows the location of the Western Canada Sedimentary Basin. Scale units are in kilometers.

The distribution of Duvernay Shale in central Alberta, Canada, showing the ...

Published: 01 September 2023
Figure 3. The distribution of Duvernay Shale in central Alberta, Canada, showing the lateral distribution of Duvernay sediments and core sample sites (well locations) in Alberta (modified from Rokosh et al., 2012 ). The inset at the upper left corner shows the location of the Western Canada
Image
Pore diameter distribution of Duvernay shale. Each line denotes sample from various depths of Duvernay shale.

Pore diameter distribution of Duvernay shale. Each line denotes sample from...

Published: 27 July 2022
Figure 2 Pore diameter distribution of Duvernay shale. Each line denotes sample from various depths of Duvernay shale.
Image
Effect of nanopores on oil phase density in Duvernay shale.

Effect of nanopores on oil phase density in Duvernay shale.

Published: 27 July 2022
Figure 6 Effect of nanopores on oil phase density in Duvernay shale.
Image
Effect of nanopores on oil phase viscosity in Duvernay shale.

Effect of nanopores on oil phase viscosity in Duvernay shale.

Published: 27 July 2022
Figure 7 Effect of nanopores on oil phase viscosity in Duvernay shale.
Image
Effect of gas injection on P-T diagram in Duvernay shale. Solid lines indicate the phase envelop, and dashed lines connecting to solid lines indicate the equal-gas-liquid mole fraction lines. Solid circles indicate the critical points. The vertical black dashed line indicates the reservoir temperature. The red lines and solid circle indicate the P-T diagram before injection. The other colors of lines indicate P-T diagrams after different gas injection.

Effect of gas injection on P-T diagram in Duvernay shale. Solid lines indic...

Published: 27 July 2022
Figure 8 Effect of gas injection on P-T diagram in Duvernay shale. Solid lines indicate the phase envelop, and dashed lines connecting to solid lines indicate the equal-gas-liquid mole fraction lines. Solid circles indicate the critical points. The vertical black dashed line indicates
Image
Cross-basin demonstration of the SVM approach. Data from the Duvernay Shale Formation and the Barnett Shale Formation are used as the test and training data, respectively. Panels (a-d) show the input logs from the Duvernay Shale Formation: gamma-ray, resistivity, sonic, and density logs, respectively. Panel (e) shows the predicted TOC-rich (green) and TOC-poor (red) layers for the Duvernay Shale Formation. The predictions match with independently measured core-measured TOC values (blue) and TOC predicted by using a revised sonic and density-based model (Wang et al., 2016).

Cross-basin demonstration of the SVM approach. Data from the Duvernay Shale...

Published: 30 June 2021
Figure 8. Cross-basin demonstration of the SVM approach. Data from the Duvernay Shale Formation and the Barnett Shale Formation are used as the test and training data, respectively. Panels (a-d) show the input logs from the Duvernay Shale Formation: gamma-ray, resistivity, sonic, and density logs
Image
(a) Location of the case study in the Fox Creek area of the Duvernay shale play in central Alberta, Canada, located inside the Duvernay zone defined by the Alberta Energy Regulator to implement a magnitude‐based traffic‐light protocol (TLP; Shipman et al., 2018). Dots show earthquakes reported by the Alberta’s RAVEN seismograph network (Stern et al., 2018), and short lines indicate the measured directions of the maximum horizontal stress (Heidbach et al., 2016). (b) Map view of the study area showing depth to the top of the Duvernay formation obtained from the 3D seismic data (Weir et al., 2018). Hydraulic fracturing of horizontal wells was monitored with 68 borehole three‐component (3C) stations, six surface broadband seismometers, one surface 3C geophone, and one strong‐motion accelerometer. (c,d) Cross sections from the map view of the study area shown in (b), with the gamma‐ray log of the vertical well (shown for reference). (e) Density and dipole sonic logs from the vertical well were used to calibrate the background model. The color version of this figure is available only in the electronic edition.

(a) Location of the case study in the Fox Creek area of the Duvernay shale ...

Published: 03 April 2019
Figure 1. (a) Location of the case study in the Fox Creek area of the Duvernay shale play in central Alberta, Canada, located inside the Duvernay zone defined by the Alberta Energy Regulator to implement a magnitude‐based traffic‐light protocol (TLP; Shipman et al. , 2018 ). Dots show
Journal Article

Identification of thermally mature total organic carbon-rich layers in shale formations using an effective machine-learning approach

Adewale Amosu, Yuefeng Sun
Journal: Interpretation
Published: 30 June 2021
Interpretation (2021) 9 (3): T735–T745.
DOI: https://doi.org/10.1190/INT-2020-0184.1
...Figure 8. Cross-basin demonstration of the SVM approach. Data from the Duvernay Shale Formation and the Barnett Shale Formation are used as the test and training data, respectively. Panels (a-d) show the input logs from the Duvernay Shale Formation: gamma-ray, resistivity, sonic, and density logs...
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View PDF for article title, Identification of thermally mature total organic carbon-rich layers in <span class="search-highlight">shale</span> formations using an effective machine-learning approach
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Journal Article

Low- and high-relief Leduc Formation reefs; a seismic analysis

N. L. Anderson, R. J. Brown, R. C. Hinds
Journal: Geophysics
Published: 01 November 1989
Geophysics (1989) 54 (11): 1410–1419.
DOI: https://doi.org/10.1190/1.1442604
... on the Leduc-Woodbend atoll section; and reflections from the offreef shales (Duvernay and Ireton formations) terminate abruptly against the reef flank.In addition, the amplitude of the underlying Cooking Lake platform reflection varies laterally, depending on the velocity of the overlying formation (Duvernay...
View PDF for article title, Low- and high-relief Leduc Formation reefs; a seismic analysis
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Journal Article

A Bayesian multivariate model using Hamiltonian Monte Carlo inference to estimate total organic carbon content in shale

Shib Sankar Ganguli, Mohamed Mehdi Kadri, Akash Debnath, Souvik Sen
Journal: Geophysics
Published: 04 July 2022
Geophysics (2022) 87 (5): M163–M177.
DOI: https://doi.org/10.1190/geo2021-0665.1
... TOC estimation is conditioned on the available well-log observations and is further defined by a priori and likelihood distributions. We demonstrate examples of applications of this approach to estimate the TOC content on two real field data sets from the well-known Devonian Duvernay shale of Western...
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View PDF for article title, A Bayesian multivariate model using Hamiltonian Monte Carlo inference to estimate total organic carbon content in <span class="search-highlight">shale</span>
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Image
(A) Plots comparing observed and organic-porosity corrected sonic readings in the 14-16-62-21W5 well. (B) Estimated formation pressure with (red) and without (blue) correction for organic porosity of Duvernay Shale (3250–3290 m) in the 14-16-62-21W5 well. The data points are average values of every 20 m. The red dotted lines are the top and bottom of Duvernay Shale.

(A) Plots comparing observed and organic-porosity corrected sonic readings ...

Published: 01 September 2023
Figure 8. (A) Plots comparing observed and organic-porosity corrected sonic readings in the 14-16-62-21W5 well. (B) Estimated formation pressure with (red) and without (blue) correction for organic porosity of Duvernay Shale (3250–3290 m) in the 14-16-62-21W5 well. The data points are average