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The AAPG/Datapages Combined Publications Database
Showing 1,739 Results. Searched 200,599 documents.
Upper Cretaceous Shoreface/Tidal Couplets in the San Juan Basin, New Mexico, USA: Significant High Frequency Events Resolved from the Gallup Clastic Wedge
M. I. Alvarez-Bastos
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... to symmetric intermediate-scale base level cycle. In a couplet, the shoreface component is associated to an intermediate-term base level-fall...
2006
Tensile radiation from slip in a medium with rough fractures
Scott Leaney, Chris Chapman
International Meeting for Applied Geoscience and Energy (IMAGE)
... is commonly represented by a symmetric moment tensor (Burridge and Knoppoff, 1964). The symmetric moment tensor, 𝑴, has six independent elements and may...
2022
Reservoir Description by Interferometric Imaging of VSP Data in Transition Zones
Thomas Radford, Martin Karrenbach, Ferry Yustiana, Willi Brianno, Dhea Wachju
Indonesian Petroleum Association
... on the right display effects produced in the presence of a layered sequence. The layered model produces wave fields that are symmetric about the source point...
2013
The Wilson Cycle and Petroleum Plays
Rasoul Sorkhabi
GEO ExPro Magazine
... indicates symmetric rifting, or ‘half-grabens’ (bounded by a normal fault on one side), suggesting asymmetric rifting. The East African Rift has...
2020
New Observations of Grabens from the Needles District, Canyonlands National Park, Utah
Richard A. Schultz, Jason M. Moore
Utah Geological Association
... superjacent brittle strata and propagated upward to form a symmetric graben. Tilting of inter-graben horsts occurs within about 1.5 mi (2 km...
1996
An AI approach to automated magnetic formation mapping beneath cover
David A. Pratt, K. Blair McKenzie, Anthony S. White
Petroleum Exploration Society of Australia (PESA)
... = # 𝐵'% 𝐵'' 𝐵'( ) = ⎢ -% 𝐵(% 𝐵(' 𝐵(( ⎢ -.1 ⎣ -% -./ -' -.0 -./ -( ⎤ -.0 ⎥ -' -.1 -( ⎥ -.1 ⎥ -' -( (1) ⎦ Eigenvector decomposition of the symmetric tensor matrix produces...
2019
Deformation of Flysch Formations in the West Bourland Mountain Area, Western Marathon Basin, Texas
Mary Anne Duncan
West Texas Geological Society
... thrusting only occurs in association with tight asymmetric folding in the study area and not with the relatively symmetric buckle folding of the eastern...
1985
Features of the Formation of Oil-Gas Structures of the Volgo-Ural Region
V. P. Bukhartsev
Petroleum Geology: A Digest of Russian Literature
...nge Q’-r = -0.2 ± 0.2. In the Volga-Ural region strongly asymmetric oil-gas-bearing structures rarely have larger reserves than symmetric or weakly as...
1965
Determining Maximum Horizontal Stress with Microseismic Focal Mechanisms - Case Studies in the Marcellus, Eagle Ford, Wolfcamp
Alireza Agharazi
Unconventional Resources Technology Conference (URTEC)
.... For angular momentum URTeC 2461621 3 conservation, the condition should be satisfied, so the moment tensor is symmetric with just six independent...
2016
Mechanisms for Deformation of Sedimentary Strata at Sheep Mountain Anticline, Bighorn Basin, Wyoming
Jeff Hennier, John H. Spang
Wyoming Geological Association
... (Figure 4) to a tight, nearly symmetric fold at the northwest end (Figure 6). The change in fold geometry indicates that the fold becomes conical...
1983
Noise suppression and compressive sensing recovery with seismic-adapted DnCNN within RED
Nasser Kazemi
International Meeting for Applied Geoscience and Energy (IMAGE)
... and Schniter, 2018) argue that this approximation is only valid when the Denoiser operator is symmetric. They also show that for most denoisers...
2024
Numerical Modeling of 1D Anomalous Diffusion in Unconventional Wells Using a Nonuniform Mesh
Ralf Holy, Erdal Ozkan
Unconventional Resources Technology Conference (URTEC)
.... This definition is an 𝑥𝑥 extension of the symmetric (𝜗𝜗 = 1/2) Caputo derivative definition given in Klimek and Lupa (2011). Detailed derivations...
2017
Can Friction Reducers Transport Sand During Fracturing Treatment?
Lingjuan Shen, Leonid Vigderman, David Heller, Diankui Fu
Unconventional Resources Technology Conference (URTEC)
... is very interesting. Sand pumped with HVFR-1 displayed a symmetric funnel shape, and covered about 80% of the slot height. At 2 minutes, the sand filled up...
2018
Impact on Hydrocarbon Retention of Sedimentary Fracturing and Faulting around Salt Sheets in the Gulf Coast
S. Cao , I. Lerche , J. J. O'Brien
GCAGS Transactions
... to a high density of lines which blacken the central inner region. Note that the fracture directions are nearly symmetric around the nose of the salt because...
1989
Quantitative Modeling of the Dynamic Evolution of Salt Structures
Kenneth Petersen, Ian Lerche
GCAGS Transactions
... sedimentary formations. The procedure also handles asymmetric two-dimensional structures as well as symmetric three-dimensional structures...
1992
Robust 3D Modeling of Hydraulic Fracture Propagation in Naturally Fractured Reservoirs
Amirhossein Kamali, Ahmad Ghassemi
Unconventional Resources Technology Conference (URTEC)
... that the shear slip is not symmetric with respect to the center of the NF. This is attributed to an assymteric stress profile caused by the intersecting...
2019
Analysis of Fracture Interference - Coupling of Flow and Geomechanical Computations with Discrete Fracture Modeling
Jiahui Chen, Juliana Y. Leung
Unconventional Resources Technology Conference (URTEC)
... of 𝑵𝑵 𝐶𝐶 and 𝑵𝑵 𝑅𝑅 , respectively. 𝑺𝑺 𝐸𝐸 is a symmetric positive matrix which guarantees the positivity of stiffness matrix, the choice...
2020
Numerical Upscaling of Discrete Fracture Networks for Transient Analysis
Vincent Artus
Unconventional Resources Technology Conference (URTEC)
... of the smallest angle. Then, the symmetric relative to the angle bisector is taken, then the symmetric relative to the closest segment, and so on. By construction...
2020
Geologic Structure of Novaya Zemlya, Vaygach, Pay-Khoy, Polar Urals, and Northern Pechora: Regional Arctic Geology of the USSR
V. I. Bondarev, S. V. Cherkesova, V. S. Enokyan, B. S. Romanovich
AAPG Special Volumes
...-Vaygach anticlinorium is a symmetric anticlinorium of great structural complexity, but the structural deformation, especially faulting...
1973
Understanding the Natural Fracture System in the Ultra-deep Sandstone Reservoir Using High-Definition Oil-Based Microresistivity Image Logs, Case Study from Junggar Basin
Renzhong Gan, Hao Zhang, Jing Chen, Weidong Huang, Xu Zhang, Bo Liu, Tao Zhang, Wei Wang, Guo Wei, Adaobi Elekwachi, Gamal Sultan
Unconventional Resources Technology Conference (URTEC)
... images are totally opposite. On the other-hand, drilling induced fractures appear as symmetric lines 180° apart. They are bright/light on the resistivity...
2022
Petrology of Siliceous Rocks in the Mishash Formation (Negev, Israel)
Yehoshua Kolodny
Journal of Sedimentary Research (SEPM)
... for the preferred orientation were axially symmetric-as is the fabric-with the axis perpendicular to the foliation. An uniaxial stress with a major vertical axis may...
1969
Optimizing Shale Infill Development with AI: Child Well Meta Models
Charles Connell, Kyle LaMotta, Nitin Chaudhary, Mickey Friedrich
Unconventional Resources Technology Conference (URTEC)
... a discreate prediction under static conditions. A related assumption is that fracs are symmetric along a vertical plane placed through the wellbore. As before...
2023
Late Paleozoic of the Tindouf Basin-North Africa
Victor V. Cavaroc, Guy Padgett, Daniel G. Stephens, William H. Kanes, Ahmed Boudda, Ian D. Woollen
Journal of Sedimentary Research (SEPM)
..., becoming thicker toward the top of the interval (up to 2 m). Current ripples with occasional transverse current or symmetric ripples, are the dominant...
1976
Deep-sea Fan Deposits in the Macigno Formation (Middle-upper Oligocene) of the Gordana Valley, Northern Apennines, Italy: REPLY
Guido Ghibaudo
Journal of Sedimentary Research (SEPM)
... trends in bed thickness; the others show either superposed thickening-upward cycles, symmetric cycles (see Ghibaudo, 1980, Fig. 7 for examp es...
1981
Log-Linear Models, Markov Chains and Cyclic Sedimentation
Timothy R. Carr
Journal of Sedimentary Research (SEPM)
... be interpreted as a symmetric cycle (ABCBA) that was truncated at various times. Hattori (1976) discusses the idealized symmetric cycle and the patterns...
1982