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The AAPG/Datapages Combined Publications Database
Showing 772 Results. Searched 200,293 documents.
Three-dimensional Fractal Model of Hydraulically Fractured Horizontal Wells in Anisotropic Naturally Fractured Reservoirs
Rosa M. Mariscal Romero, Rodolfo Camacho-Velázquez
Unconventional Resources Technology Conference (URTEC)
... an integral convolution dependent on previous temporal states: 𝜕< 𝑚 1 1 𝜕𝑚(𝑥, 𝑦, 𝑧, 𝑡 > ) > = # 𝑑𝑡 𝜕𝑡 < 𝛤 (1...
2022
Machine-learning Facilitates Prediction of Geomechanical Properties Directly From SEM Images in Unconventional Plays
Heehwan Yang, Deepak Devegowda, Mark Curtis, Chandra Rai
Unconventional Resources Technology Conference (URTEC)
... is that convolution can process images so that the outcomes are translation invariant. This has led to wide adoption of CNNs for image classification...
2023
Towards Universal Production Forecasting via Adversarial Transfer Learning and Transformer with Application in the Shengli Oilfield, China
Ji Chang, Jin Meng, Dongwei Zhang, Tianrui Ye, Han Wang, Yitian Xiao
Unconventional Resources Technology Conference (URTEC)
...., Fang, J., Zhao, X., Ge, J., & Xiao, Y. (2022). Temporal convolution network based on attention mechanism for well production prediction. Journal...
2024
Sedimentary Structure and Environment of Some Thick Sandstone Beds of Turbidite Type
David H. Chipping
Journal of Sedimentary Research (SEPM)
.... Superimposed upon this are deformations of greatly varied dimensions, and some beds show very complex deformation at certain horizons. The convolution...
1972
Early Precambrian Tidal Sedimentation in the Pongola Supergroup of South Africa
Victor Von Brunn, David K. Hobday
Journal of Sedimentary Research (SEPM)
... and deposition is indicated by inter al convolution. Ripplemarks occur in a variety of shapes and sizes and include flat-topped, double-crested, TABLE 1...
1976
Improving Reservoir Modeling through Integration of Seismic Data in Eocene Turbidites for West Brae Field, Central North Sea, United Kingdom
Anne M. Schwab, Steve Buckner, James A. Bramald, Julie Cass
AAPG Special Volumes
.... An a priori 3-D elastic time-domain model (Vp, Vs, Rhob, or AI and SI) is input and converted into synthetic angle stacks by convolution...
2011
Late Pleistocene Fan-Deltas Along the Dead Sea Rift
Amihai Sneh
Journal of Sedimentary Research (SEPM)
..., individual laminae are deeply folded, and units are rarely more than 15 cm thick. The convolution fades laterally, merging with other structures within...
1979
Basin-Filling Models: Chapter 9
Charles L. Angevine, Paul L. Heller, Chris Paola
AAPG Special Volumes
...! One way of resolving this apparent conflict is to think of a given real basin as a kind of convolution of general processes with specific local...
1990
Mud-Flat Cycles, Incised Channels, and Relative Sea-Level Changes on a Paleocene Mud-Dominated Coast, Ellesmere Island, Arctic Canada
Brian D. Ricketts
Journal of Sedimentary Research (SEPM)
... cross-bed set contacts and foresets are veneered by mudstone. Oversteepening or convolution of foresets and mud drapes is common. The few cross-bed...
1994
Limitations on Resolution of Seismic Reflections and Geologic Detail Derivable from Them: Section 1. Fundamentals of Stratigraphic Interpretation of Seismic Data
Robert E. Sheriff
AAPG Special Volumes
... is called convolution. Let us calculate the composite wavelet shape from a sandstone layer 20 m thick with a velocity of 2,500 m/sec, assuming...
1977
High-Frequency Explosive Volcanic Eruptions in a Late Jurassic Volcanic Arc: The Ameghino Formation, Antarctic Peninsula
Roberto A. Scasso
Journal of Sedimentary Research (SEPM)
.... In some cases, the entire bed has undergone partial fluidization and convolution. Many layers show very fine sand to coarse silt unimodal grain-size...
2001
Chapter 129: Architecture of a Laterally Migrating Channel Complex — Isaac Formation, Windermere Supergroup, British Columbia, Canada
C. J. O’Byrne, C. Pirmez, M. D. Barton, H. Buergisser, G. S. Steffens
AAPG Special Volumes
... structures most commonly found in channel margins. Slump features include shear folds, dewatering pipes, and convolution and gently buckled strata...
2007
Three-Dimensional Trend Mapping Using Gamma-Ray Well Logs: Simpson Group, South-Central Kansas
J. H. Doveton , Zhu Ke-an , J. C. Davis
AAPG Bulletin
... the convolution of a subsurface impedance sequence with a relatively broad energy wavelet. This wavelet behaves as a low-pass filter of the variation...
1984
Regional-Scale Porosity and Permeability Variations, Peace River Arch Area, Alberta, Canada (1)
STEFAN BACHU and J. R. UNDERSCHULTZ
AAPG Bulletin
... analogy, the present distribution in rock properties is the result of a convolution integral in time of the effects of all the elements which ever acted...
1992
Integration of geology, rock physics, logs, and prestack seismic data for reservoir porosity estimation
Abdulaziz M. AlMuhaidib, Mrinal K. Sen, M. Nafi Toksoz
AAPG Bulletin
... as the convolution of 12 interpolated angle-dependent wavelets and 12 respective angle-dependent reflectivity series.The 12 reflectivity series are functions...
2012
A hybrid deep learning network for tight and shale reservoir characterization using pressure and rate transient data
Hamzeh Alimohammadi, Hamid Rahmanifard, and Shengnan Nancy Chen
AAPG Bulletin
.... The hybrid structure is a five-layer-deep network and weights with two one-dimensional convolution layers, one fully connected layer, and two LSTM...
2022
Abstract: Enhanced Surface Seismic Data Processing Using Simultaneous Acquired DAS-VSP Data; #91204 (2023)
Gang Yu, Jinliang Xiong, Junjun Wu, Yuanzhong Chen, Yingshui Zhao
Search and Discovery.com
... viscoelastic compensation from one dimension to two dimensions. Mittet and Sollie (1995) used explicit convolution filtering in the frequency space...
2023
4D Finite Difference Forward Modeling within a Redefined Closed-Loop Seismic Reservoir Monitoring Workflow, #41922 (2016).
David Hill, Dominic Lowden, Sonika, Chris Koeninger
Search and Discovery.com
... acoustic attributes, and variations of well-log-based fluid-substitution and petrophysical modeling, 2) 1D convolution modeling and 3) 2D/3D point spread...
2016
Formation Damage Disaggregation in Gas Well and Sensitivity Reservoirs from Build Up Well Test
E. A. Lopez, S. Zapata, C. Rangel, A. Naranjo
Search and Discovery.com
... problem in the moment to get the damage factor; Spivey et al. propose a model to generate type curves for non-Darcy flow, which is based on convolution...
2016
Seismic Stratigraphic and Quantitative Interpretation of Leonardian Reefal Carbonates, Eastern Shelf of the Midland Basin: Insight Into Sea Level Effects, Geomorphology and Associated Reservoir Quality; #10909 (2017)
Abidin B. Caf, John D. Pigott
Search and Discovery.com
... convolution ( reflectivity(i)=wavelet(i) * noise(i)); Reflectivity = AI (lower layer ) / AI (upper layer); Background model gives low freq. ( filtered...
2017
Detection of Fluvial Systems Using Spectral Decomposition (Continuous Wavelet Transformation) and Seismic Multi-Attribute Analysis A New Potential Stratigraphic Trap in the Carbonera Formation, Llanos Foothills, Colombia; #42281 (2018)
Essam Saeid, James Kellogg, Christopher Kendall, Ibraheem Hafiz, Zyaid Albesher
Search and Discovery.com
...) or filter (Convolution) the input seismic data (Schlumberger, 2017). In this case after extracting the dominant frequencies you have to flatten each...
2018
Near Field Exploration: Detailed Reservoir Characterization and Facies Distribution of Upper Badenian Channel-Levee-Overbank Systems in the Vienna Basin, Austria; #51456 (2018)
Linda Lerchbaumer, Wolfgang Siedl, Philipp Strauss
Search and Discovery.com
... Shale well-1 convolution D‘ 5 km Fig. 7a (left): Sum of amplitudes map of Top 13-16TH with position of cross section shown in Fig. 7b. (above...
2018
The Role of Forward Seismic Modeling: Outcrop Analogs of Deep-Water Architectures; #51679 (2020)
Jamie K. Pringle, David A. Stanbrook
Search and Discovery.com
... Versus One Dimensional Convolution: The Seismic Appearance of the Grès d’Annot Turbidite System, in P. Joseph and S. Lomas (eds.), Deep-Water...
2020
The Difficulty in the Transgressive Seas Explanation for Organically Enriched Rocks Is a Fundamental Problem with Applied Sequence Analysis, and it Is the Misunderstanding of the Condensed Section, #70405 (2020).
D. M. Parker,
Search and Discovery.com
... in a major distributive fluvial system, enhanced by upstream uplift and tectonics, rather than sealevel fall. Furthermore, convolution of the known...
2020
Convolutional neural networks as an aid to biostratigraphy and micropaleontology: a test on late Paleozoic microfossils
Rafael Pires De Lima, Katie F. Welch, James E. Barrick, Kurt J. Marfurt, Roger Burkhalter, Murphy Cassel, Gerilyn S. Soreghan
PALAIOS
... in the biological sense. Classification.—The process of assigning data to a particular class. Convolution.—A mathematical operation that uses two functions...
2020