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The AAPG/Datapages Combined Publications Database
Showing 4,386 Results. Searched 200,357 documents.
Flowing Material Balance and Decline Curve Analysis: A Hybrid Approach for Better EUR and Decline Profile Predictions for CSG Wells
Gerardo E. Guillen Falcon
Unconventional Resources Technology Conference (URTEC)
... – Φ*0.5 3302 20 3270 11.7 Anisotropy effects. Anisotropy effects were evaluated starting from the base case (k=20 mD) and introducing a 5:1 (44.7...
2021
Geologic Controls on Interaction Between the Edwards and Trinity Aquifers, Balcones Fault System, Texas
David A. Ferrill, Alan P. Morris, Darrell W. Sims, Ron Green, Nathan Franklin, Deborah J. Waiting
Bulletin of South Texas Geological Society
... rock layers. If a stratigraphic sequence is not deformed, this vertical inhomogeneity and anisotropy produced by layering will dominate the bulk...
2008
Seamless in Seam - New Geosteering Technology Delivered Challenging Coal Seam Gas Project with Success
Arman Nick Kholgh, Martin Mackinlay, Sophie Garrard, Mohammad Zaman, Haifeng Wang, Chris Hibberson, Nicholas Challands, Hoan Van Luu, Rohit Tekale, Francis Advent Kalukal, Yang Liu, Nadia Ardikani
Australian Petroleum Production & Exploration Association (APPEA) Journal
... from the trans verse antenna T6 and the tilted receivers R3 and R4, called the T6 second harmonica anisotropy. These measurements are sensitive...
2022
Natural-Hydraulic Fracture Interaction: Microseismic Observations and Geomechanical Predictions
Jian Huang, Reza Safari, Kevin Burns, Ingo Geldmacher, Uno Mutlu, Mark McClure, Stuart Jackson
Unconventional Resources Technology Conference (URTEC)
..., orientation and frictional properties); in-situ stress state (e.g. stress anisotropy and magnitude); stimulation design parameters (e.g. pumping schedule...
2014
A Systematic Technique for Describing and Quantifying Fractures in Core
D. F. Lockman, R. P. George Jr, M. J. Hayes
Pacific Section of AAPG
... the magnitude and direction of permeability anisotropy of the reservoir, and help determine which fractures are more likely to be closed by in situ...
1997
Basin Modelling in the Mahakam Delta Based on the Integrated 2D Model TEMISPACK
Jean Burrus, Etienne Brosse, Ghislain Choppin de Janvry, Yves Grosjean, Jean-Louis Oudin
Indonesian Petroleum Association
... model, then refined to fit the observed pressure. Due to the presence of interbedded shale and sands, considerable permeability anisotropy...
1992
3-D Integrated Workflow for Understanding the Fracture Interference and its Impact into the Gas Production of the Woodford Shale
Eva Peza
Unconventional Resources Technology Conference (URTEC)
... are consistent with other micro-seismic observations in the study area. The resulting maximum principal stress direction from shear anisotropy analysis can...
2014
Mechanisms of Drape Folding in the Wyoming Province
David W. Stearns
Wyoming Geological Association
... planes of anisotropy like bedding or foliation allows granitic rocks to behave in a "statistically isotropic" manner. These rocks are not perfectly...
1971
The Stress Regime of The Western Canadian Basin and Implications for Hydrocarbon Production
J.S. Bell, E.A. Babcock
CSPG Bulletin
... excavations. Horizontal stress anisotropy is inferred from the presence of breakouts. By far the largest body of data is provided by wellbore breakouts...
1986
Shale Resource Assessment in Presence of Nanopore Confinement
I. Yucel Akkutlu, Seunghwan Baek, Olufemi M. Olorode, Pang Wei, Zhang Tongyi, Ai Shuang
Unconventional Resources Technology Conference (URTEC)
... by large concentration gradients and pressure anisotropy. The heterogeneity and anisotropy effects become dominant when the organic pore size is reduced...
2017
Quantifying the Influence of Rock Fabric, Composition, and Electrical Double Layer on the Broadband Dielectric Dispersion of Organic-rich Mudrocks
Artur Posenato Garcia, Zoya Heidari
Unconventional Resources Technology Conference (URTEC)
... considering the electrode polarization effect, respectively. Furthermore, we observed a significant dielectric permittivity anisotropy due to the preferential...
2018
Preliminary Map of Fracture Patterns in Coal in the Western United States
Stephen E. Laubach, Roger Tyler, W. A. Ambrose, C. M. Tremain, M. A. Grout
Wyoming Geological Association
... of Geologists, p. 93-108. Stoner, J. D., 1981, Horizontal anisotropy determined by pumping in two Powder River Basin coal aquifers, Montana: Groundwater...
1992
Petrophysical Rock Typing in Unconventional Shale Plays: The Niobrara Formation Case Study
Asm Kamruzzaman, Manika Prasad, Stephen Sonnenberg
Unconventional Resources Technology Conference (URTEC)
... mechanical properties (Figure 10). For instance, Kamruzzaman (2015) has reported sizable stress-dependent acoustic velocity anisotropy in these rocks. Several...
2019
Issues with Gas Relative Permeability in Low-permeability Sandstones
Alan P. Byrnes
AAPG Special Volumes
... anisotropy may need to be considered. Berkowitz, B., and R. P. Ewing, 1998, Percolation theory and network modeling applications in soil physics...
2008
Relating Small-Scale Permeability Heterogeneity to Lithofacies Distribution
Michael N. Gaud, Gary A. Smith, Sean A. Mckenna
Special Publications of SEPM
...). Variograms are calculated along different azimuths to characterize anisotropy. The calculations of γ based on measured data are the experimental variogram...
2004
Cambrian-Ordovician Shales in the Humber Zone: Thermal Maturation and Source Rock Potential
Rudolf Bertrand, Denis Lavoie, Martin Fowler
CSPG Bulletin
... in Table 3, synthesized in Table 4 and presented on Figures 5a to c. Migrabitumen shows various microtextures: 1) isotropy or weak anisotropy, 2) wavy...
2003
Analysis of Well Interference in Delaware Basin: A Physics-Based and Data-Driven Approach
Esmail Eltahan, Shayan Tavassoli, Brian Casey, Guinevere McDaid, Emery Goodman
Unconventional Resources Technology Conference (URTEC)
...-in pressure (ISIP), and horizontal stress anisotropy (𝑺 𝑯 𝒎𝒂𝒙 − 𝑺 𝒉 𝒎𝒊𝒏 ). For each of the wells considered, a list of the nearest 10 wells...
2021
Using Quantitative Tracer Analysis to Calibrate Hydraulic Fracture and Reservoir Simulation Models: A Permian Basin Case Study
Magdalene Albrecht, Shannon Borchardt, Chase Murphree, Mark McClure, Janz Rondon
Unconventional Resources Technology Conference (URTEC)
...’s Modulus and Poisson’s Ratio were measured with sonic logs and calibrated to static core measurements, considering transverse anisotropy. Minimum...
2022
Integrated Approaches for Wells Interference and Drainage Assessment in Vaca Muerta Shale Play, Argentina
Martín E. Fasola, Luciana De Marzio, Mariano I. Suarez
Unconventional Resources Technology Conference (URTEC)
... the Organics levels and the Regressive and are not observed in the Cocina. Regarding anisotropy, a lower fracture growth is expected for Cocina (lower...
2023
From Laboratory to Field: Simulation of a Surfactant Huff-n-Puff Pilot in the Eagle Ford
Jingjing Zhang, Isaiah Ataceri, Eduardo Gildin, David Schechter, Hadi Nasrabadi
Unconventional Resources Technology Conference (URTEC)
... as the anisotropy ratio of reservoir permeability. Their initial values, varying ranges, and calibrated values are listed in Table 3. The simulation results...
2023
Experimental Investigation of Cyclic CO2 Injection and Storage in Unconventional Reservoirs Under Reservoir Conditions
Amirsaman Rezaeyan, Kelvin Humphrey-Kugbega, Son Tran, Adnan Younis, Chengyao Song, Amin Ghanizadeh, Hamidreza Hamdi, Christopher R. Clarkson
Unconventional Resources Technology Conference (URTEC)
... capacities of both vertical and horizontal intact Montney samples are limited and similar (Figure 7) despite noticeable rock anisotropy (Table 2...
2024
Modernizing Petrophysical Interpretation in Unconventional Reservoirs by Integrating Advanced Well Logs and Core Analysis in High-Definition Wells
Haijing Wang, Luisa Crousse, Sergio Cuervo, Ronald Brown, Andrew Tipton, Tim Fischer, Michael Cheshire, Mason Edwards, Aygul Kostinovsky, Ezequiel Lombardo, Esteban Rives, Ricardo Freitas, Ali Wushur
Unconventional Resources Technology Conference (URTEC)
... resistivity values that are largely due to intrinsic electrical anisotropy of shale (Clavaud, 2008; Allen et al., 2023). For practical purposes, we simply...
2025
Insights into Stress Effects on Gas Recovery from Marcellus Shale Horizontal Wells
Mohamed El Sgher, Kashy Aminian, Ameri Samuel
Unconventional Resources Technology Conference (URTEC)
... to mechanical anisotropy rather than surface roughness. The propped fracture conductivity measurements revealed that, Elimsport and Allenwood vertical (bed...
2025
Quantifying the Impacts of CO2 Adsorption on the Elasticity of Organic-Rich Mudrocks
Jamil El Masry, Ibrahim Gomaa, Elsa Maalouf, Zoya Heidari
Unconventional Resources Technology Conference (URTEC)
... that higher concentration and thermal maturity level of kerogen enhances P-wave anisotropy (i.e., difference between C11 and C33) in ORM. Moreover, Han et al...
2025
Structural Models of Subsurface Thrust-related Folds in the Foothills of British ColumbiaCase Studies of Sidetracked Gas Wells
Mark Cooper, Chris Brealey, Peter Fermor, Rick Green, Mike Morrison
AAPG Special Volumes
... is at best only approximate. In areas of complex geology, the effects of refraction and anisotropy above the target often cannot be accounted for in seismic...
2004