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Showing 5,194 Results. Searched 200,693 documents.
Integrating U-net with full-waveform inversion for an efficient salt body construction
Abdullah Alaliand, Tariq Alkhalifah
International Meeting for Applied Geoscience and Energy (IMAGE)
... Geologists REFERENCES Alali, A., B. Sun, and T. Alkhalifah, 2020, The effectiveness of a pseudo-inverse extended born operator to handle lateral...
2022
Gabon: Staying Ahead of the Herd in the Ultra-Deep Waters
Jake Berryman, Gregor Duval, CGG
GEO ExPro Magazine
... the relationship between acoustic impedance and TOC. This confirmed an inverse relationship between measured TOC and Acoustic Impedance (AI...
2020
Multi-realization seismic data processing with deep variational preconditioners
Matteo Ravasi
International Meeting for Applied Geoscience and Energy (IMAGE)
...), such an assumption cannot always be met in practice. the proposed methodology. THEORY Variational inverse problems Throughout this work, we consider linear...
2023
Acoustic approximation VTI reverse-time migration using pseudo-depth mapping method
Xinwen Zhang, Jianping Huang, Zhenchun Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... (1983) chose the finite difference method to solve the twoway wave equations. Chang and McMechan (1987, 1994) proposed inverse time migration...
2023
ABSTRACT: A Study of the Effect of Moisture on Gas Storage Capacity in American Coals
Chad Hartman, Tim Pratt
The Society for Organic Petrology (TSOP)
... and distribution etc.). Moisture content is of particular importance due to its inverse relationship to gas storage capacity. For this reason...
2005
Abstract: Pre-Stack Inversion: An Extension of AVO for Lithology and Hydrocarbon Fluid Quantification
Rick Wallace and Roger Young
Houston Geological Society Bulletin
..., based on volume averaging, allows inversion of the inverse P- and S-impedance to yield mineral volumes. Calculating Sand, Clay and Hydrocarbons Where...
1998
ABSTRACT: COALBED METHANE EXPLORATION AND STORAGE PREESTIMATE USING MULTI-CHANNEL TELEMETRY METHOD OF THE COAL SEAM RESISTIVITY
Zhong Li, Shunian Ning, Ren’an Zhou, Guangliang Li
The Society for Organic Petrology (TSOP)
... is in inverse radio to the square of depth, and direct radio to the visual resistivity of the 143 Abstracts of the 23th Annual Meeting of the Society...
2006
Estimating CO2 saturation and porosity using the double difference approach based invertible neural network
Arnab Dhara, Mrinal K. Sen, Sohini Dasgupta
International Meeting for Applied Geoscience and Energy (IMAGE)
... parameters by learning a mapping between data and model parameters. But seismic inverse problems have ill-posed and non-unique. Several probabilistic...
2023
Improved Subsurface Imaging and Interpretability Through Broadband Reprocessing of Legacy Seismic Data: Examples from North West Shelf Australia
Stephen Malajczuk, Rajesh Saklani, Dean Clark, David Eastwell
Petroleum Exploration Society of Australia (PESA)
.../receiver depth. By accounting for these ghost reflections through the utilisation of an inverse ghost operator, more signal and a broader frequency bandwidth...
2016
A novel vector PP imaging condition for elastic reverse-time migration
Bingkai Han, Weijian Mao, Xiao-Bi Xie
International Meeting for Applied Geoscience and Energy (IMAGE)
... PP imaging noises. But explicit angle-domain wavefield decompositions influence its computational efficiency. On the other hand, the inverse scattering...
2023
A graph-space optimal transport FWI approach based on κ-generalized Gaussian distribution
Sérgio Luiz E. F. da Silva, Giorgio Kaniadakis
International Meeting for Applied Geoscience and Energy (IMAGE)
... associated with the optimal transport theory. INTRODUCTION Full-Waveform Inversion (FWI) is a non-linear inverse problem that aims to obtain subsurface...
2023
Bayesian uncertainty quantification for reservoir parameter changes estimated from time-lapse machine learning
Jinsong Chen, Chang Li, Lei Wei, Anusha Sekar, Maisha Amaru
International Meeting for Applied Geoscience and Energy (IMAGE)
... seismic data through inversion, they are subject to unknown errors. Therefore, we consider their inverse variances as unknown variables (i.e....
2024
Borehole Image Log Interpretation: Making the Most of Your Data and Realising the Limits, an Illustration Using Fluvial, Shallow Marine, and Deep Marine Environments
Adriaan Bal, Paul Grech, Ardiek Mahargono, Kenrick van Noord, Jeremy Prosser
Indonesian Petroleum Association
... to the bioindex, for understanding environmental controls at reservoir and exploration scale. The inverse of the IFI mirrors wave energy. When the wave energy...
2002
Effect of Mineral Composition of Clay Cement of Rock Reservoirs of the Samotlor Field on the Physical-Chemical Properties of the Oil
K. Kh. Galikeyev, R. S. Sakhibgareyev
Petroleum Geology: A Digest of Russian Literature
... shows a tendency toward an inverse relation of clay content to the density and chemical composition of the oils. See Figs. 2 and 4. It should...
1974
Natural Beta Activity of Oils and Host Rocks of the Lelyakov Field
G. P. Shkrebta
Petroleum Geology: A Digest of Russian Literature
..., and an inverse relationship to the content of paraffin and asphalt. See Figs. 4 and 5. Figure 4. Relationship of radioactivity of oils of horizon P-1 plus 2...
1976
Relationship of Zones of Oil-Gas Accumulation to Paleogeographic Conditions of Sedimentation in the Example of the Productive Unit of the Baku Archipelago
M. S. Kukhmazov
Petroleum Geology: A Digest of Russian Literature
..., the coefficient of sorting increases from 1.5 to 3.5. There is an inverse relationship between asymmetry and median diameter of the grains. See Fig. 3. Figure...
1976
Application of Full Waveform Inversion to Resolve an Eroded Shallow Carbonate Platform, North Madura, East Java, Indonesia
David Cavalin, Nurrul Ismail, Tom Paten, Kola Agbebi, Dave Lim
Indonesian Petroleum Association
...] The seismic inverse problem as a sequence of before stack migrations, Conference on Inverse scattering, Theory and Application, Society of Industrial...
2019
Recursive Inversion and Attribute Analysis of 3D Seismic Data Over a Four-Way Dip Structure, Gulf of Thailand
S. Thanatit, S. Ronghe
Indonesian Petroleum Association
... with the corresponding set of numbers representing seismic traces. Inverse modeling decomposes seismic data into a geological model that would create the seismic...
1999
Tectonic Framework of the Ryn-Peskov Region on a Basis of Gravity Survey Data
I. N. Shcherbakova, Yu. S. Dezhanova, N. M. Kuvshinova, V. A. Shlyakhovskiy
Petroleum Geology: A Digest of Russian Literature
... to asymmetry of the salt bodies and interference of closely adjacent bodies. This can be eliminated only by solution of the inverse problem. This was done...
1979
Uranium, Potassium, and Thorium in Bituminous Rocks of the Bazhenov Formation of West Siberia
V. V. Khabarov, O. M. Nelepchenko, Y. N. Volkov, O. V. Bartashevich
Petroleum Geology: A Digest of Russian Literature
... (members P2 and P3). Uranium content is 20-45· 10−4%. Type III. Compact rocks that are commonly limey. Uranium content is 10-20· 10−4%. There is an inverse...
1979
Abstract: Some insights into the source rocks of Central Luconia and the West Baram Delta area, Sarawak
Mike Scherer, Peter Abolins, Nasaruddin Ahmed
Geological Society of Malaysia (GSM)
... Baram Delta to 5.5°C/100 min Central Luconia. The depth of the basement apparently influences this range. It shows an inverse relationship...
1999
Experience in Study of Oil Rings in Gas-Condensate-Oil Pools
V. V. Maslennikov, V. M. Zhilin, T. I. Panfilova
Petroleum Geology: A Digest of Russian Literature
... of productive strata BU8-BU9 of Urengoy field. Parts of pool: 1-gas saturated; 2-oil saturated; 3 - water-saturated. A tendency is found for an inverse...
1980
Abstract: Borehole Image Log Interpretation: Making the Most of Your Data and Realising the Limits, an Illustration Using Fluvial, Shallow Marine, and Deep Marine Environments (Paper 4)
Adriaan Bal, Jeremy Prosser, Kenrick van Noord
Geological Society of Malaysia (GSM)
..., for understanding environmental controls at reservoir and exploration scale. The inverse of the IFI mirrors wave energy. When the wave energy index...
2001
Specific Surface Areas and Porosities from Photomicrographs: GEOLOGICAL NOTES
Walter D. Rose , M. R. J. Wyllie
AAPG Bulletin
... as the inverse of volume per surface and thus equal to 4c/rh. Here c and h are the total cuts and hits, respectively, observed when a line of finite length...
1950
The Measurement of Girdle Strength and Imbrication in Particle Fabrics: DISCUSSION
Athol D. Abrahams
Journal of Sedimentary Research (SEPM)
...·tan2Cmax + 1)]0.5 (3) 4) An inverse measure of girdle strength is then provided by [EQUATION (4)] IMBRICATION Perez and Yin (1988) used the percentage...
1989