Uncertainty quantification for full-waveform inversion with a mini-batch gradient-based sampling method

Zeyu Zhao, Mrinal K. Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

... be obtained by minimizing the objective function. However, due to the non-linear nature of the forward mapping, various types of noises in the data...

Along-Axis Segmentation and Growth History of the Rome Trough in the Central Appalachian Basin1

Dengliang Gao, Robert C. Shumaker, and Thomas H. Wilson

AAPG Bulletin

... (King and Zietz, 1978) indicate that the Rome trough shows significant along-axis variations in depth of the rift valley and thickness of overlying...

Vertical and Lateral Seismic Resolution and Attenuation: Part 7. Geophysical Methods

R. E. Sheriff

AAPG Special Volumes

... and a 15-Hz wavelet. Resolution decreases rapidly with depth because velocity increases and frequency decreases. HORIZONTAL RESOLUTION The waves giving...

Deep learning Laplace-Fourier full-waveform inversion with virtual supershot gathers

Lei Fu, Daniele Colombo, Weichang Li, Ernesto Sandoval-Curiel, Ersan Turkoglu

International Meeting for Applied Geoscience and Energy (IMAGE)

...ovide good overall understanding of the survey area, based on which we build the starting earth models. Then, we add velocity and depth varia...

Common Reflection Surface (CRS) Stack: Limitations and Opportunities for High-Resolution Seismic Imaging; Real Data Cases

M. S. Jaya, E. A. Sentani, Yendri, Widjonarko, D. Santoso

Indonesian Petroleum Association

... wavefield attribute sections that are useful in further processing such as tomographic velocity model inversion and depth migration processing...

Data selection for velocity model estimation using a circular shot OBN survey

Felipe T. Costa, Sergio L. E. F. da Silva, Ammir A. Karsou, Felipe Capuzzo, Roger M. Moreira, Jorge Lopez, Marco Cetale

International Meeting for Applied Geoscience and Energy (IMAGE)

...Data selection for velocity model estimation using a circular shot OBN survey Felipe T. Costa, Sergio L. E. F. da Silva, Ammir A. Karsou, Felipe...

Application of full-waveform inversion to ultra-high-density OBN data at Clair field

Simon Luo, Xukai Shen, Philip Tillotson, Lindsey Smith, Dan Davies

International Meeting for Applied Geoscience and Energy (IMAGE)

... of (a,e) inline, (b,f) crossline, (c,g) depth slices, and (d,h) RTM images from the (top) legacy velocity and (bottom) updated FWI model...

Very High-Resolution Seismics as a Tool for Sequence Stratigraphy Applied to Outcrop Scale--Examples from Eastern Tyrrhenian Margin Holocene/Pleistocene Deposits

F. L. Chiocci

AAPG Bulletin

... operations; (2) single-channel reflection seismic data yield vertical-scale profiles that are expressed in time rather than in depth (estimated velocity can...

Seismic Attenuation Analysis for Reservoir Description

Search and Discovery.com

... is the NMO shift at an offset for an event starting from two8Q way traveltime t 0 at zero-offset. Δt is a function of t 0 , RMS velocity and offset...

Bering Sea Velocity-amplitude Anomalies: Exploring the Distribution of Natural Gas and Gas-hydrate Indicators

Ginger A. Barth, David W. Scholl, and Jonathan R. Childs

AAPG Special Volumes

... acquisition. CDP denotes common-depth-point number along seismic line 21.FIGURE 2. A velocity-amplitude anomaly (VAMP) interpretation diagram, showing...

Advanced Imaging and Inversion for Oil Production Estimates in Unconventional Resource Plays

Greg M. Johnson, Paul Miller, David Phillips

Unconventional Resources Technology Conference (URTEC)

... for unconventional resource plays. The imaging portion of the workflow includes a calibrated tomography that simultaneously solves for vertical velocity and TI...

Integrated 3D Seismic Data Modeling and Processing Methodology for Structural Model Analysis: Case Study

T. Salinas

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... (PSDM) that requires perform a careful interpretation in depth as the seismic velocity behavior is modeled. The availability of this structural...

Ocean Margin Drilling Project Data Synthesis off Eastern North America: 34° to 41°N Latitude: ABSTRACT

P. D. Rabinowitz, J. I. Ewing

AAPG Bulletin

... onshore to the ocean crust, and from 34° to 41°N as part of the Ocean Margin Drilling Project. Included in the atlas are maps of the depth...

A practical implementation of data-space Hessian in the time-domain formulation of source extended full-waveform inversion

Gaoshan Guo, Stephane Operto, Ali Gholami, Hossein S. Aghamiry

International Meeting for Applied Geoscience and Energy (IMAGE)

... 10 0 5 5 10 0 Depth(km) MSE=14.22% b2 f1 5 10 Figure 4: Reconstructed velocity models from data with peak frequency 1Hz (left) and 2Hz...

Method of Spatial Observations of RNP Under the Conditions of the Reef Zone of the Orenburg Cis-Urals

I. A. Mushin

Petroleum Geology: A Digest of Russian Literature

... of interpretation of traveltime curves of reflected waves: Izv. AN SSSR, no. 1. 4. Yefimkina, S. S., Kolenkov, E. V., Shteynberg, G. G., Mushin, I. A., Gelever...

Full Waveform Acoustic Logging: Part 7. Geophysical Methods

C. H. Cheng

AAPG Special Volumes

... (compressional) wave traveltime through the rock. ull waveform acoustic logs, however, provide a large amount of other information. This includes S (shear...

Abstract: Azimuthal Anisotropy as a Potential Fracture Diagnostic from 3D Surface Seismic Data: Example from Wildcat Hills, Alberta; #90211 (2015)

Draga Talinga and Don Lawton

Search and Discovery.com

..., Alberta, Canada Abstract In azimuthally anisotropic media, normal-moveout velocity is represented as an ellipse in the horizontal plane...

Abstract: Maximize the Potential of Seismic Data in Shale Exploration and Production … Examples from the Barnett Shale and the Eagle Ford Shale; #90187 (2014)

Joanne Wang and Duane Dopkin

Search and Discovery.com

... the decision making processes such as sweet spot identification, fracturing stimulation and completion design. A full azimuth depth domain imaging technique...

Three-Dimensional Seismic Attributes Help Define Controls on Reservoir Development: Case Study from the Red River Formation, Williston Basin

R. A. Pearson, B. S. Hart

AAPG Special Volumes

... of Geologists, p. 275290.Leiphart, D. J., and B. S. Hart, 2001, Comparison of linear regression and a probabilistic neural network to predict porosity...

Forensic GPR anti-human landmine accurate detection by Gramian constrained joint inversion of the monostatic reflection and transmission radargrams

Jide Nosakare Ogunbo, Changsoo Shin, Sang-Wook Kim, Sang-Hyun Kim

International Meeting for Applied Geoscience and Energy (IMAGE)

... seismogram is available in Ogunbo (2022), and it is straightforwardly adapted to model the GPR radargram. Velocity profiles by the inversion of the reflection...

Pattern Recognition in a Digital Age: A Gameboard Approach to Determining Petrophysical Parameters; #40929 (2012)

Daniel A. Krygowski and Robert M. Cluff

Search and Discovery.com

..., 1967) in linear and logarithmic scales, constitute a unified pattern recognition display. This “gameboard” presentation in Excel (©Microsoft) presents...

Seismic-attribute Analysis for Gas-hydrate and Free-gas Prospects on the North Slope of Alaska

M. W. Lee, T. S. Collett, T. L. Inks

AAPG Special Volumes

... of brine-gas-mixture on velocity in an unconsolidated sand reservoir: Geophysics, v. 41, p. 882894.Helgerud, M. B., 2001, Wave speeds in gas hydrate...

Abstract: Complex-beam Migration: Non-recursive and Recursive Implementations; #90187 (2014)

Tianfei Zhu

Search and Discovery.com

...-beam method for shot-domain prestack depth migration. The method is flexible with input geometry and accurate in imaging multipathing arrivals...

Seismic Characterization of the Fiordland Gas-hydrate Province, New Zealand

Miko Fohrmann, Andrew R. Gorman, Ingo A. Pecher

AAPG Special Volumes

...) (4921 and 11,483 ft/s). CDP = common depth point, TWT = two-way traveltime. 1 km = 0.6 mi.FIGURE 7. Three representative velocity distributions across...

Trishear: A Review of Kinematics, Mechanics, and Applications

Stuart Hardy, Richard W. Allmendinger

AAPG Special Volumes

... varies linearly across the trishear zone. The linear version of Zehnder and Allmendinger (2000) is slightly different than Hardy and Ford's (1997) velocity...