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Journal Article

Improving reservoir characterization and time-lapse seismic through joint inversion of PP- and PS-wave seismic data

Ali Tura, James Simmons, Sima Daneshvar, Matthew Copley, Joseph Stitt
Journal: Interpretation
Published: 14 March 2022
Interpretation (2022) 10 (2): T341–T350.
DOI: https://doi.org/10.1190/INT-2021-0167.1
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Modeling and inversion of electromagnetic data collected over steel casings: An analysis of two controlled field experiments in Colorado

Gurban Orujov, Rita Streich, Andrei Swidinsky
Journal: The Leading Edge
Published: 01 February 2022
The Leading Edge (2022) 41 (2): 114–121.
DOI: https://doi.org/10.1190/tle41020114.1
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State of stress in areas of active unconventional oil and gas development in North America

Jens-Erik Lund Snee, Mark D. Zoback
Journal: AAPG Bulletin
Published: 01 February 2022
AAPG Bulletin (2022) 106 (2): 355–385.
DOI: https://doi.org/10.1306/08102120151
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Comparison of Two Logistic Regression Models for Landslide Susceptibility Analysis Through a Case Study

Lauren Southerland, Wendy Zhou
Published: 24 November 2021
Environmental & Engineering Geoscience (2021) 27 (4): 471–486.
DOI: https://doi.org/10.2113/EEG-D-20-00057
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Bitumen geochemistry and producibility in the Upper Cretaceous Niobrara Formation shale oil play

Yuanjia Han, Brian Horsfield, Nicolaj Mahlstedt, Heather LaReau
Journal: AAPG Bulletin
Published: 01 October 2021
AAPG Bulletin (2021) 105 (10): 2017–2039.
DOI: https://doi.org/10.1306/03122118078
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Multidisciplinary analysis of hydraulic stimulation and production effects within the Niobrara and Codell reservoirs, Wattenberg Field, Colorado — Part 1: Baseline reservoir conditions

Matthew Bray, Jacquelyn Daves, Daniel Brugioni, Asm Kamruzzaman, Tom Bratton, Sheila Harryandi, Alena Grechishnikova, Ali Tura, Tom Davis, Jim Simmons
Journal: Interpretation
Published: 12 July 2021
Interpretation (2021) 9 (4): SG1–SG12.
DOI: https://doi.org/10.1190/INT-2020-0144.1
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Multidisciplinary analysis of hydraulic stimulation and production effects within the Niobrara and Codell reservoirs, Wattenberg Field, Colorado — Part 2: Analysis of hydraulic fracturing and production

Matthew Bray, Jacob Utley, Yanuri Ning, Angela Dang, Jacquelyn Daves, Isabel White, Ahmed Alfataierge, Erdinc Eker, Tom Davis, Ali Tura, Jim Simmons
Journal: Interpretation
Published: 12 July 2021
Interpretation (2021) 9 (4): SG13–SG29.
DOI: https://doi.org/10.1190/INT-2020-0153.1
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A case study of vertical hydraulic fracture growth, stress variations with depth and shear stimulation in the Niobrara Shale and Codell Sand, Denver-Julesburg Basin, Colorado

Kevin L. McCormack, Mark D. Zoback, Wenhuan Kuang
Journal: Interpretation
Published: 12 July 2021
Interpretation (2021) 9 (4): SG59–SG69.
DOI: https://doi.org/10.1190/INT-2020-0246.1
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Sequence stratigraphy of the Niobrara Formation: Implications for age-constraining tectonic events and stratigraphic complexities in the Denver-Julesburg Basin, United States

William R. Drake, Sarah J. Hawkins
Journal: AAPG Bulletin
Published: 01 July 2021
AAPG Bulletin (2021) 105 (7): 1293–1328.
DOI: https://doi.org/10.1306/12092019098
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Tectonic controls on basement exhumation in the southern Rocky Mountains (United States): The power of combined zircon (U-Th)/He and K-feldspar 40 Ar/ 39 Ar thermochronology

Jason W. Ricketts, Jacoup Roiz, Karl E. Karlstrom, Matthew T. Heizler, William R. Guenthner, J. Michael Timmons
Journal: Geology
Published: 14 June 2021
Geology (2021) 49 (10): 1187–1192.
DOI: https://doi.org/10.1130/G49141.1
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Bulk composition of a zoned rare-earth minerals-bearing pegmatite in the Pikes Peak granite batholith near Wellington Lake, central Colorado, U.S.A.

Markus B. Raschke, Charles R. Stern, Evan J. D. Anderson, M. Alexandra Skewes, G. Lang Farmer, Julien M. Allaz, Philip M. Persson
Published: 01 June 2021
Rocky Mountain Geology (2021) 56 (1): 1–18.
DOI: https://doi.org/10.24872/rmgjournal.56.1.1
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Journal Article

Beryllium-silicon disorder and rare earth crystal chemistry in gadolinite from the White Cloud pegmatite, Colorado, USA

Julien M. Allaz, Joseph R. Smyth, Rhiana E. Henry, Charles R. Stern, Philip Persson, Joy J. Ma,