Bridging the gap: Deep learning on seismic field data with synthetic training for building Gulf of Mexico velocity models

Stuart Farris, Robert Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

... as an approximator to the inverse operator of the seismic field experiment. The task of seismic velocity inversion can be stated as a mathematical objective...

Gradient-regularized physics informed neural networks for acoustic wave simulation

Shobhit Mishra, Bharath Shekar

International Meeting for Applied Geoscience and Energy (IMAGE)

... invariant, making them ideal tools for surrogate modeling in inverse problems. Despite the promise, PINNs often fail to converge and struggle...

A geophysical prior knowledge guided semisupervised deep learning framework for AVA inversion

Lei Zhu

International Meeting for Applied Geoscience and Energy (IMAGE)

... to implement the inversion and forward process. First, the INN defines the inverse process. The role of the convolutional layers in INN is to approximate...

Errors in Extrapolation of Experimental Kinetic Parameters to Organic Geochemical Systems: GEOLOGIC NOTES

Lloyd R. Snowdon

AAPG Bulletin

...) that the Arrhenius relation between rate (or time) and temperature behaves ideally, that is, the log-inverse time versus inverse-temperature curve...

Fast, Fully Probabilistic, Nonlinear Inversion of Seismic Attributes for Petrophysical Parameters; #120047 (2012)

Andrew Curtis, Mohammad Shahraeeni, and Gabriel Chao

Search and Discovery.com

... data. The petrophysical inverse problem is significantly non-linear, and due to the large number of data points in a seismic cube we need to apply fast...

The Relationship of Gravitational and Magnetic Anomalies to the Process of Granitization

L. N. Elanskii Л. Н. Еланскии

Petroleum Geology: A Digest of Russian Literature

... of appearance of inverse polarity was proposed by L. D. Bersudskii (2). Applying this interpretation to the concrete geologic conditions of the Russian...

Wavelet Processing

Lee Lu

Indonesian Petroleum Association

... the waveform is known, we can design an inverse phase filter (or shaping filter) to convert it to a zero-phase (or minimum-phase) desired out-put with the same...

Simultaneous inversion of velocity and angle-dependent reflectivity

Nizar Chemingui, Yang Yang, Jaime Ramos-Martinez, Guanghui Huang, Dan Whitmore, Sean Crawley, Elena Klochikhina, Sriram Arasanipalai

International Meeting for Applied Geoscience and Energy (IMAGE)

... reflectivity parameterization of the wave equation (Whitmore et al., 2021) and an efficient scale separation of the FWI gradient through inverse scattering...

Determination of Well Productivity Using Pump Downtime Data

Jeff Spath

Indonesian Petroleum Association

.... The method is an inverse solution as is found in conventional well test interpretation. A theoretical or model pump runtime is computed assuming the two...

Correlational Relationship of Parameters of the Composition of Oils of Various Genetic Types

N. S. Shulova

Petroleum Geology: A Digest of Russian Literature

... to the amount of methane hydrocarbons in the fraction that boils up to 200°C. See Table 3. It has an inverse relationship to the amount of methane-naphthene...

Trishear Kinematic Modeling of Structures, with Examples from the Neuqun Basin, Argentina

Richard W. Allmendinger, Toms Zapata, Ren Manceda, Francisco Dzelalija

AAPG Special Volumes

... on the thickness of the competent units in the section. Allmendinger, R. W., 1998a, Inverse and Forward numerical modeling of trishear fault-propagation folds...

Abstract/Excerpts: Constraining Thermal Histories from Limited Data in Poorly Studied Basins, by Kerry Gallagher; #120098 (2013)

Search and Discovery.com

P-Wave Impedance, S-Wave Impedance and Density from Linear AVO Inversion: Application to a VSP Data from Alberta

Faranak Mahmoudian

Search and Discovery.com

... of the inverse problem. The damped SVD (singular value decomposition) method has been utilized to stabilize the AVO inversion. The examination...

ABSTRACT: Gas Flushing as a Reservoir Formation Mechanism in the Ordovician Reservoirs, Tazhong Field, Tarim Basin, China: Evidence from Fluid Inclusion, Fluorescence and Hydrogen Isotope Data; #90134 (2011)

Keyu Liu, Nai Zhang, Zhaoming Wang, Julien Bourdet, Shaobo Liu

Search and Discovery.com

... oils may have undergone varying degrees of gas flushing (Fig. 2, see Nomenclatures). Two distinct “inverse isotope fractionation” trends (i.e....

P-Wave Impedance, S-Wave Impedance and Density from Linear AVO Inversion: Application to a VSP Data from Alberta

Faranak Mahmoudian

Search and Discovery.com

... of the inverse problem. The damped SVD (singular value decomposition) method has been utilized to stabilize the AVO inversion. The examination...

Abstract: Feasibility Testing of Time-lapse Seismic Monitoring with Full Waveform Tomography; #90171 (2013)

Chad Hogan, Ken Hedlin, Gary Margrave, and Michael Lamoureux

Search and Discovery.com

... International, 168, 152–170. Lailly, P., 1983, The seismic inverse problem as a sequence of stack before migrations, in Bednar, J. B., Redner, R...

Abstract: Receiver Comparison for a Non-repeatable Earthquake Source on the Hussar 2011 Low-frequency Seismic Experiment; #90174 (2014)

Kevin W. Hall, Gary F. Margrave, and Malcolm B. Bertram

Search and Discovery.com

... geophone data after applying the inverse filter. Improvements in the geophone amplitude spectra, defined as a closer visual match to the seismometer...

Abstract: Full Waveform Inversion Algorithm using Time Imaging Methods; #90174 (2014)

Hassan Khaniani, John C. Bancroft, Gary F. Margrave, and Eric von Lunen

Search and Discovery.com

... that is based on the Pre-Stack Time Migration (PSTM) algorithm. The method is fast compared to conventional FWI techniques in forward and inverse iterations...

Abstracts: A Decomposition of RP into Contributions from single-parameter Reflectivities; #90173 (2015)

Kristopher A. Innanen

Search and Discovery.com

... parameters. A forward/inverse series framework leads to an alternative approach to this type of decomposition. The first order terms in the decomposition...

Field Observations and Geochemical Analysis of Laterally Continuous Aragonite Veins: Insight into Ancient Fluid Travel, #50887 (2013)

Elizabeth A. Horne, James P. Evans, Dennis Newell, Niko Kampman, Steven Nelson, Elizabeth S. Petrie,

Search and Discovery.com

... ‰ SMOW 4.5 sample grouping record changes in 15 Proposed Source 2/7 2/6 2/5 2/2 2/1 2/3 2/4 9 Slope = 2.30 ssin De ga 8 Inverse...

Finding a Better Path to Impedance Inversion; #41722 (2015)

Amit Kumar Ray, Ritesh Kumar Sharma, Satinder Chopra

Search and Discovery.com

... weights calculated on the basis of inverse distance, and similarly extrapolates away from the well control. When quality checks are performed...

Predicting ground surface deformation induced from CO2 plume movement using machine learning

Ibrahim M. Ibrahim, Saeed Salimzadeh, Dane Kasperczyk, Teeratorn Kadeethum

Australian Energy Producers Journal

... storage, greenhouse gas emissions, ground surface deformation, inverse analysis, machine learning surrogate model, tiltmeters. Introduction Accepted: 15...

Volume Fractions of Lithologic Units Deposited per Geologic Epoch in the Cenozoic, Keathley Canyon and Walker Ridge, Deepwater Gulf of Mexico: Part 1„Sand, Shale, and Siltstone

Sharon Cornelius, Peter A. Emmet

GCAGS Journal

... continuously decreased while during the same time period, the volume fraction of shale has increased. Sand volume fractions appear to have an inverse...

Abstract: Barrier overwash and washover sedimentation Aspy Bay, Cape Breton Island

D. L. Forbes, R. B. Taylor, D. Frobel

Atlantic Geology

.... The thickness of individual sedimentation units ranges from order 10° to 10 1 mm. Some units appear to exhibit inverse textural grading consistent...

Machine learning inversions incorporating geologic information through variational autoencoder and physics-based neural network

Yaoguo Li, Taqi Alyousuf, Andy McAliley

International Meeting for Applied Geoscience and Energy (IMAGE)

...-inverse operator contained in the network. However, this strategy is unlikely to become feasible for geophysical inversion applications, particularly...