Xu and White Revisited (Paper C8)

M. Sams, T. J. Focht, N. Azuairi Che Sidik

Geological Society of Malaysia (GSM)

... is replaced by the Hill average of the component minerals. The aspect ratio at each depth is adjusted until the modelled velocity matches the measured...

Prestack Seismic Data Inversion for Shale Gas Reservoir Characterization in China; #41829 (2016)

Gang Yu, Yusheng Zhang, Uwe Strecker, Maggie Smith

Search and Discovery.com

..., that are likely to impact fracturing. Seismic attribute analysis of anisotropy from elliptical velocity inversion indicates that anisotropy varies...

THE RENAISSANCE OF GRAVITY

Search and Discovery.com

Flow Behavior of Ponded Turbidity Currents

Marco Patacci, Peter D.W. Haughton, William D. Mccaffrey

Journal of Sedimentary Research (SEPM)

... the upper layer is graded (concentration and grain size decrease upward). During the cloud inflation stage, the concentration and velocity profiles...

ABSTRACT: Pore pressure prediction from seismic data for well planning in Block 22 Final

M. Bacon, N. Mundel, J. Hearne, R. Lubbe and S. O’Connor

Geological Society of Trinidad & Tobago

... vertical stress, derived from well density data and water depth, Ph is hydrostatic pore pressure (normal gradient 0.44 psi/ft), Vnorm is the velocity...

Porosity Prediction Using Amplitude Mapping. Case of the Cretaceous M-2 Limestone Member of the Napo Formation, Ecuador

M. J. Serna

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... Seismic amplitude mapping in combination with isochron mapping, interval velocity studies and forward modeling can be a useful tool in predicting porosity...

EXTENDED ABSTRACT: From Isotropic to Tilted Transverse Isotropic Pre-Stack Depth Migration

Nicolas Chazalnoel

GCAGS Transactions

... residue move-out correction during the post-migration stage. While this assumption is generally valid for flat layered sediment and velocity profile...

Elastic full-waveform inversion using random space shift

Yuhui Yao, Jizhong Yang, Yuzhu Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... than AFWI due to the slow S-wave velocity which requires a more accurate initial model than Pwave velocity, together with the existence of tradeoff...

Structural Geophysics and the Simpson in Oklahoma

John J. Rupnik

Tulsa Geological Society

... necessary identification of reflectors and a means of studying velocity distribution. If initial results warrant it, additional detail work can...

Full-waveform inversion using velocity-encoded physics-informed neural networks

Mohammad Taufik, Xinquan Huang, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

...Full-waveform inversion using velocity-encoded physics-informed neural networks Mohammad Taufik, Xinquan Huang, Tariq Alkhalifah Full waveform...

Thinking in Depth

Jim Durrant

Petroleum Exploration Society of Australia (PESA)

... velocity effec ts has resulted in many misplaced wel ls. Areas of complex structure have often been labelled bad data areas and avoided for further drilling...

P- and S-Wave Velocity Structures of the Sigsbee Abyssal Plain of the Gulf of Mexico from Ocean Bottom Seismometer Data

Sangmyung D. Kim, Seiichi Nagihara, Yosio Nakamura

GCAGS Transactions

...P- and S-Wave Velocity Structures of the Sigsbee Abyssal Plain of the Gulf of Mexico from Ocean Bottom Seismometer Data Sangmyung D. Kim, Seiichi...

Flume Experiments on the Transition from Ripples to Lower Flat Bed with Increasing Sand Size

John B. Southard, Lawrence A. Boguchwal

Journal of Sedimentary Research (SEPM)

... of mean flow velocity vs. sediment size for a flow depth of 7 cm plotted from the flume runs shows that in the size interval from 0.6 mm to 0.7 mm...

Abstract: Seismic Imaging near and within the Basement Offshore Malaysia; Including Comparisons of Imaging Algorithms (Geophysics Paper 19)

Nabil El Kady, M. Shah Sulaiman, Zabidi M Dom, Tang Wai Hoong, Lee Mei Lu, Pavel Vasilyev, Martin Bayly

Geological Society of Malaysia (GSM)

...; velocity model building and migration methods applied to successfully image the data. The basement fractures are present at a variety of scales but to aid...

Models of Growth Faults: Unit 9: Principles

Martin P. A. Jackson, William E. Galloway

AAPG Special Volumes

... of fluids. Thus velocity profiles within the glide zone of ductile rock can be modeled (fig. 5). Velocities decrease downward through the soft layer...

Abstract: First-Arrival TomoStatics and Residual Statics for Near-Surface Corrections; #90211 (2015)

Jie Zhang, Oz Yilmaz, and Nanxun Dai

Search and Discovery.com

... intermediate datum, and then back to a floating datum with a constant replacement velocity. We shall then apply the tomostatics to the far-offset...

Abstract: *Prediction of S-Wave Velocity using Machine Learning Algorithms Combined with Empirical Mode Decomposition-Based Approaches; #91202 (2022)

Said Gaci and Mohammed Farfour

Search and Discovery.com

...Abstract: *Prediction of S-Wave Velocity using Machine Learning Algorithms Combined with Empirical Mode Decomposition-Based Approaches; #91202 (2022...

Enhanced Reservoir Characterization and Permeability Prediction of Heterogeneous Carbonate Reservoirs from Sonic Velocity and Digital Image Analysis; #50689 (2012)

John E. Thornton and G. Michael Grammer

Search and Discovery.com

...Enhanced Reservoir Characterization and Permeability Prediction of Heterogeneous Carbonate Reservoirs from Sonic Velocity and Digital Image Analysis...

The Earthquake Process in Oklahoma; #80497 (2015)

Robert B. Herrmann, Han Su, Hao Guo

Search and Discovery.com

... period fundamental mode surface waves. Since the depths depend on the local velocity model used, a region specific crustal model was developed...

Simultaneous Measurement of Acoustic and Electrical Anisotropy of Shales under Elevated Pressure: A Preliminary Study, #41965 (2016).

Liwei Ou, Qifei Niu, Manika Prasad, John Quirein, Natasa Mekic, Junsheng Hou, Mehdi E. Far, Ming Gu

Search and Discovery.com

... variation observed in shale gas reservoirs: Doctoral dissertation, Stanford University, Stanford, California. Vernik, L., and X. Liu, 1997, Velocity...

Efficiently Integrating Seismic Data into the Geosteering Process to Accurately Position Wells for Increased Production; #42061 (2017)

Hank P. Chambers, Kayla Ball

Search and Discovery.com

... from time to depth • Subsurface and velocity models easy to update and maintain by geosteerer • Build a consistent three dimensional interpretation...

VSP Lookahead of the Bit Information: Considerations and Accuracy Analysis, #42196 (2018).

P. Ranjan, M. Khaitan, S. Chandrasekhar, Basant Kumar

Search and Discovery.com

... position. The reflected waves contain acoustic information that can be inverted for impedance and velocity profiles. This unique feature in estimating...

3-D Velocity Model of Hydrocarbon Ventsite in Cascadia Region Offshore Vancouver Island, by Mikhail M. Zykov and Ross Chapman; #90035 (2004)

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Use of Seismic Refraction Techniques for Investigating Recent Landslides in a Tropical Rain Forest in Puerto Rico

Matthew C. Larsen

Circum Pacific Council Publications

... of their failure planes. Field observations and drill hole data were used to verify the accuracy of refraction data. The seismic velocity measured...

Vector Constraints on Quaternary Deformation of the Western United States East and West of the San Andreas Fault

J. Bernard Minster, Thomas H. Jordan

Pacific Section SEPM

... is of limited utility in describing the kinematical complexities of regions where plate deformation contributes significantly to the velocity field...