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The AAPG/Datapages Combined Publications Database
Showing 5,195 Results. Searched 200,616 documents.
Monopole slow formation shear head wave Greens function in a LWD borehole acoustic configuration
Tim Geerits, Stefan Schimschal, Anna Swiatek
International Meeting for Applied Geoscience and Energy (IMAGE)
... ( s ) domain cylinder q functions (or excitation functions), C kn' , can be expressed as an inverse Fourier integral with respect the vertical...
2022
Sedimentologic and Physical Oceanographic Evidence of a Shelf Edge Counter Current Off Guinea Bissau, Guinea and Sierra Leone
David W. McGrail
Journal of Sedimentary Research (SEPM)
... incompressible viscous fluid supplemented by the continuity equation is the basis for the derivation: [vq]/[vt] + q · q + 2 q = [1]/[-p-v ( q) (conservation...
1977
A Semi-Analytical Poroelastic Solution of Induced Pressure-Stress Changes and Its Applications to Depletion Delineation of Transversely Isotropic Shale Reservoirs
Shihao Wang, Yuzhe Cai, Bin Wang, Yunhui Tan, Kainan Wang, Jiehao Wang, Xinghui Liu, Yuguang Chen
Unconventional Resources Technology Conference (URTEC)
... - c12 ) - qz2c44 ê A=ê -0.5qx q y ( c11 + c12 ) ê -qx qz ( c44 + c13 ) ë -0.5qx q y ( c11 + c12 ) 2 2 -0.5qx ( c11 - c12 ) - q y c11 - qz2c44 -q y qz...
2024
Subsurface Characterizaton Using Microseismic Velocity, Attenuation, and Ansiotrophy Tomography in a Geothermal Field
Ahmad Syahputra, Andri Dian Nugraha, Rachmat Sule, Sri Widiyantoro
Indonesian Petroleum Association
... The attenuation value of a medium is the inverse of the quality factor (Q); that is the ability of a medium to transmit elastic wave energy. The t* value...
2014
Rescaled Decline Curves: A Solution for Shale Gas Assessment, #40748 (2011)
Jean-Yves Chatellier, Bob Menard, Sylvestre Charles,
Search and Discovery.com
... being the exception. Many wells can thus be plotted at once using rescaled decline curves, any of these curves is typical of an inverse function...
2011
A method to identify subtle carbonate reservoirs
Shaoying Chang, Mengxiu Wang, Kaiyuan Ji
International Meeting for Applied Geoscience and Energy (IMAGE)
... inverse transformation for seismic sections, and then the principle component analysis (PCA) can be applied to seismic Figure1: The sections...
2022
Clari-Fi Broadband Processed 2D Seismic in Portugal and the Mid-North Sea High
Sindre Jansen, Will Bradbury, Bent Erlend Kjølhamar, TGS
GEO ExPro Magazine
..., designature and inverse-Q. A multi-domain denoising process attenuates various types of noise before the deghosting algorithm accounts for the local...
2016
Extended Abstract: Water Influx Predictions in Reservoirs with Aquifer Drive Using the Two-Phase Reservoir Integral Type Pseudo-Pressure with Applicability in Gas Hydrate Reservoirs
Melvin Kome, Mohd Amro
Africa Energy and Technology Conference, 2016
...ry inverse Laplace solutions are estimated thus producing from the water layer could be beneficial to easy and faster depressurization of the hydrate lay...
2016
InvMixer An efficient deep neural network for seismic inversion
Tianyi Zhang, Mauricio Araya-Polo, Anshumali Shrivastava
International Meeting for Applied Geoscience and Energy (IMAGE)
..., Deep learning for seismic inverse problems: Toward the acceleration of geophysical analysis workflows: IEEE Signal Processing Magazine, 38, 89–119...
2023
Cross Sections from Dipmeter Data (1)
ARNAUD ETCHECOPAR and JEAN-LUC BONNETAIN
AAPG Bulletin
..., v. 28, p. 294-306. Etchecopar, A., G. Vasseur, and M. Daignieres, 1981, An inverse problem in microtectonics for the determination of stress tensors...
1992
Diffusion regularization for multi-parameter near-surface elastic full-waveform inversion
Mohammad Hasyim Taufik, Fu Wang, Tariq Alkhalifah
International Meeting for Applied Geoscience and Energy (IMAGE)
... linear inverse problems. Kamilov et al. (2017) later extended this idea to work on nonlinear imaging problems. In this work, we promote using a recent...
2024
A Technology to Extract Lithology, Porosity and Hydrocarbon Content from Conventional Seismic Data
Roger A. Young
GCAGS Transactions
..., porosity and fluids) to seismic. The forward modeling problem (rocks to seismic) must first be understood before the inverse problem (seismic to rocks) can...
1999
Quantitative and Comparative Mineralogy Analysis From Cores, Cuttings and Logs in Vaca Muerta Shale Play
Laurent E. Mosse, Luz Rodriguez, Enrique R. Chiapello, Marcelo J. Sanchez, Laurent Lambert, Jean-Pierre Leduc
Unconventional Resources Technology Conference (URTEC)
... association factor and covers each where is called factor, standing for element listed in the previous paragraph. In the literature the inverse...
2015
On singularity points in elastic orthorhombic media
Alexey Stovas, Yu Roganov, V. Roganov
International Meeting for Applied Geoscience and Energy (IMAGE)
... , (9) d 23 with inverse transformation, d12 = f13 f23 , d13 = f12 f23 , d23 = f12 f13 . (10) If d jk 0 , the position of the singularity...
2022
Frequency-dependent reflection characteristics of single thin layer and waveform inversion
Zhengyang Kuai, Danping Cao, Chao Jin
International Meeting for Applied Geoscience and Energy (IMAGE)
... obtained from the propagation matrix and eigenvector matrix: (1) Q=D-1 D2 E2 D-1 D3 1 2 QUU QUD (2) Q z1 ,z2 = QDU QDD Q in Equation 1 is the wave...
2023
Simultaneous 3D 4C - OBC & VSP Walkaway Survey in the Attaka Field, East Kalimantan, Indonesia
Bill Borland, Phil Johnston, Mike Reblin, Suta Vijaya, Omar Kulbrandstad, Muhammad Idrees, Scott Leaney, Jan van de Mortel
Indonesian Petroleum Association
... compensation and employs inverse Q extrapolation and coherency optimization to balance offset-dependent amplitudes (see figure 20). This second algorithm may...
2000
Workflow for Zoeppritz AVO Inversion to Estimate Seismic Anisotropy, Geomechanical Properties and TOC of Shale: Case Study of Avalon Shale, Delaware Basin, #42416 (2019).
Un Young Lim, Nurul Kabir, Richard L. Gibson Jr.,
Search and Discovery.com
... N2 = T 2 q 2 K =D A C =1+K Q = M2 (C 2 N2 + fN1 ) + 4q 2 A2 P = M1 (B 2 N1 + fN2 ) + 4eDM1 M2 N1 N2 8 Inverse problem as the minimization...
2019
Accurate simulations of pure P-waves in attenuating transversely isotropic media
Qiang Mao, Jianping Huang, Xinru Mu
International Meeting for Applied Geoscience and Energy (IMAGE)
... Laplacians, based on the constant Q model. The separable low-rank decomposition method (SLRDM) is employed to solve our new wave equation due...
2023
Textual heterogeneity in massive sandstones from the Grès d'Annot and Numidian Flysch: Implications for depositional processes
Urval S. Patel,, Dorrik A.V. Stow, Andy Gardiner, Jim Buckman
Journal of Sedimentary Research (SEPM)
...., Palaeomagnetism and Diagensis in Sediments: Geological Society of London, Special Publication 151, p. 125– 126. Hand, B.M., 1997, Inverse grading...
2022
A simultaneous denoising and event picking approach using supervised machine learning
Salman Abbasi, Motaz Alfarraj, Dmitry Borisov, Vikram Jayaram, Iftekhar Alam, Bakhtawer Sarosh
International Meeting for Applied Geoscience and Energy (IMAGE)
... signal-tonoise ratio (SNR) (Trnkoczy, 2012). Many filtering algorithms exist that can be applied to enhance the S/N of the recorded waveforms. Some...
2023
Reef Delineation by Multiple Offset Borehole Seismic Data Collection: A Case Study
D. E. Miller and L. Dupal
AAPG Special Volumes
... on linearized inverse scattering (Born inversion; see e.g. Stolt and Weglein, 1985, for a summary). Figure 3. Plan view of the experiment showing well...
1987
Establishing the Basis for Multi-Segment Arps Decline Models
John Lee
Unconventional Resources Technology Conference (URTEC)
... that includes all but the first of these flow regimes for a typical MFHW. Log(q) ~ Log(t) q/qmax 1 0.1 Actual Time MB Time 1/2 - Slope Unit Slope Pseudo...
2021
Fabric of Coarse Deep-water Sandstones Tourelle Formation, Quebec, Canada
Richard N. Hiscott, Gerard V. Middleton
Journal of Sedimentary Research (SEPM)
... by fine sand, with inverse grading upward into medium to coarse sand. This sequence, called a stratification band (Hiscott and Middleton, 1979...
1980
Calculating sensitivities for 3D inversion of electromagnetic well logging data
Cícero Régis, Paulo Roberto de Carvalho
International Meeting for Applied Geoscience and Energy (IMAGE)
... in inverse problems. Here, an efficient solution is discussed that generates accurate sensitivities using a 3D Vector Finite Element program with a direct...
2023
PWD-PINN: Slope-assisted seismic interpolation with physics-informed neural networks
Francesco Brandolin, Matteo Ravasi, Tariq Alkhalifah
International Meeting for Applied Geoscience and Energy (IMAGE)
... be used to estimate the dominant local slopes of the data by solving an inverse problem that minimizes the residual between the predicted and original...
2022