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The AAPG/Datapages Combined Publications Database
Showing 5,194 Results. Searched 200,693 documents.
Combining Sonic Velocity and Characterization of Pore Architecture to Develop a Proxy for Reservoir Permeability in Unconventional Carbonates: An Example from the Mid-Continent Mississippian Limestone
Beth Vanden Berg, G. Michael Grammer
Unconventional Resources Technology Conference (URTEC)
...) has a predictable, inverse relationship with total porosity. As shown in Figure 1, there is an overall trend whereby samples with the highest...
2014
Nonuniform dispersed source arrays for broadband seismic acquisition
Joaqun A. Acedo, Mauricio D. Sacchi
International Meeting for Applied Geoscience and Energy (IMAGE)
... i stands of ideal and ∗k means convolution in the wave-number domain. The recovering process of NU-DSA entails solving an inverse problem...
2023
Multichannel seismic deconvolution via 2D K-SVD and convolutional sparse coding
Guiqian Zhang, Xiayu Gao, Bangli Zou, Yaojun Wang, Yingzhu Chen
International Meeting for Applied Geoscience and Energy (IMAGE)
... ◦ FL + γFH ◦ Fdh + γFH ◦ Fdv dh dv (4) where F and F−1 are the FFT and inverse FFT operations, respectively, and FH is the complex conjugate of F. FL...
2023
Deep Learning Enhanced Joint Inversion for Mineral Exploration Using Airborne Geophysics: Application in Decorah Area
Yanyan Hu, Xiaolong Wei, Xuqing Wu, Jiajia Sun, Jiefu Chen, Yueqin Huang
International Meeting for Applied Geoscience and Energy (IMAGE)
... in solving joint inverse problems. Part of the studies utilizes the end-to-end network, directly mapping from data domain to model domain (Sun et al., 2020b...
2023
Comparison of Magnetic Vector Inversion With Sparse Norm Susceptibility Inversion Accounting for Demagnetization
John M. Weis, Lindsey J. Heagy, Douglas W. Oldenburg
International Meeting for Applied Geoscience and Energy (IMAGE)
... susceptibility inversion, increasing the non-uniqueness of the inverse problem. We show that if appropriate prior information is available, modeling...
2023
Depositional Mechanics of Thick-Bedded Sandstones at the Base of A Submarine Slope, Tourelle Formation (Lower Ordovician), Quebec, Canada
Richard N. Hiscott, Gerard V. Middleton
Special Publications of SEPM
... orientation and indurated blocks of shale i types imbrication massive sandstones with poor or inverse to normal of these lack flutes and internal...
1979
Petrophysical Interpretation of Multi-Frequency Electromagnetic Measurements in Clay- and Conductive-Mineral-Rich Mudrocks
Siddharth Misra, Yifu Han
Unconventional Resources Technology Conference (URTEC)
...-Frequency Conductivity-Permittivity Inversion. The non-linear inverse problem discussed in this section involves estimation of petrophysical parameters...
2016
Is There Value in Reprocessing Legacy Marine Streamer Seismic for Improved Resolution? A Recent Example from Indonesia
Dmitri Skorinski, Ted Manning
Indonesian Petroleum Association
... on the stack that is dominated by the stronger frequencies below 100Hz, but it could be boosted by later inverse Q amplitude compensation. Since most...
2014
Low-rank representation for reflectivity model and its applications in least-squares migration
Jidong Yang, Jianping Huang, Hejun Zhu, George McMechan
International Meeting for Applied Geoscience and Energy (IMAGE)
... images, particularly in scenarios with finite acquisition aperture, limited frequency bands and uneven illumination. By solving a linear inverse problem...
2024
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
Time-Lapse Microgravity to Monitoring Fluid Movement Estimation, Water Saturation, Pressure & Density Changes in Reservoir (Case Studies On Field TFQ, Sumatera)
Taufiq, Ermin Retnowati, Ahmad Zaenudin
Indonesian Petroleum Association
..., the influence of temperature, and the shock during the survey. Drift correction magnitude is formulated as follows (Gunawan, 1985) : FILTERS AT TIME-LAPSE...
2015
Facies-constrained elastic full-waveform inversion for tilted orthorhombic media
Ashish Kumar, Ilya Tsvankin
International Meeting for Applied Geoscience and Energy (IMAGE)
... of the inverse problem and increase the spatial resolution of the obtained parameters. Most existing applications of elastic FWI to orthorhombic media...
2024
Time-lapse full-waveform inversion by model order reduction using radial basis function
Haipeng Li, Robert G. Clapp
International Meeting for Applied Geoscience and Energy (IMAGE)
... associated with hydrocarbon production (Hicks et al., 2016) and CO2 injection (Egorov et al., 2017). Nonetheless, FWI is a high-dimensional inverse...
2024
Simultaneous imaging of basement relief and varying susceptibility in deep-learning approach
Zhuo Liu, Yaoguo Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... in the basement rock from one set of total-field anomaly data. As we use deep learning for an inverse problem, we adopt terms from the machine-learning studies...
2024
Porosity Calibration of Modern Porosity Logs and Old Neutron Logs, Mabee Field, Andrews and Martin Counties, Texas
Dennis W. Dull
West Texas Geological Society
... deflection and porosity was demonstrated by Brown and Bowers (1959). They discovered that there is an inverse linear relationship between porosity...
1992
Kriging-based surrogate models for convergence acceleration of Markov chains: An example of magnetotellurics-dix joint inversion
Alejandro Quiaro, Mauricio D. Sacchi
International Meeting for Applied Geoscience and Energy (IMAGE)
...-probability model could be an estimator of one solution to our inverse problem. The posterior probability is proportional to the right-hand side...
2024
Stable Isotope Applications in Petroleum Exploration by Geochemical Soil Gas Analyses
Don Rigby
Petroleum Exploration Society of Australia (PESA)
... pore gas are compared to the soil inverse correlation between the isotopic two samples at each end of the survey probe survey data in Figure 4...
1991
Full-waveform inversion from a homogeneous starting model: A field dataset study
Zeyu Zhao, Brook Tozer, Mrinal K. Sen
International Meeting for Applied Geoscience and Energy (IMAGE)
... to obtain a ’best-fit’ model that describes the observed data well and satisfies our prior knowledge for the subsurface. We can formulate n objective function...
2024
Assessing the region of ambiguity of potential fields to improve surveying and modelling
Luigi Bianco, Maurizio Fedi, Maurizio Milano
International Meeting for Applied Geoscience and Energy (IMAGE)
... for the sources for gravity or magnetic case. Due to the Green's third identity, the inverse problem has inherently ambiguous solutions (Blakely, 1996) since...
2024
Estimation of Seismic Attenuation (Q): More Insight from Zero-Offset VSP
Mohammad Risyad
Indonesian Petroleum Association
...) Attenuation coefficient (α) is related to the inverse of Q-factor (Q). The relationship between α and Q is given on equation (1.b). If we take...
2018
Optimization of Variograms used for Truncated Plurigaussian Simulation
Samaneh Sadeghi, Jeff B. Boisvert
CSPG Bulletin
... Gaussian simulation t0 = –999, tK = 999, and G−1(.) is the inverse cumulative distribution function for the standard normal distribution, and cpK (u) k = 1...
2015
Refined Karst Feature and Fault Identification Through Integrated Wave Field Separation and Imaging of Diffraction Energy
Riaz Alai, Afiq Mokhtar, Christopher Lee Slind, Yonghe Guo, Rizki Krishna Pratama
Indonesian Petroleum Association
... imaging and the many advantages. Inverse Scattering Series (ISS) internal multiple predictions (Weglein et al., 1997 and Wang and Hung, 2014...
2021
An Analysis of the Implicit Assumptions of the Methodology of Seismic Sequence Stratigraphy: Chapter 21: Sea-Level and Seismic Stratigraphic Studies
Julian A. Thorne
AAPG Special Volumes
.... These assumptions are divided into four groups: (1) seismic stratal geometry identification, (2) the depositional sequence model, (3) the inverse model...
1992
Fracture Basement Imaging, Identification, and Characterization Through Separated Wave Field Processing Strategies - A Case Study From Offshore Indonesia
Riaz Alai, Afiq Mokhtar, Yonghe Guo, Hendra Iriansyah Darmawan, M Hilman B Roslan
Indonesian Petroleum Association
... was important to ensure minimal interference with basement fracture energy. Therefore, Inverse Scattering Series (ISS) interbed multiple prediction...
2022
Fluorescent Tracer Particle Determination of the Size-Velocity Relation for Foreshore Sediment Transport, Sandy Hook, New Jersey: NOTES
Warren E. Yasso
Journal of Sedimentary Research (SEPM)
..., for these two size classes both first arrival and converted peak arrival data indicate an inverse size-velocity relationship prevails in beach drift...
1965