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Welcome to the new Datapages Archives

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The AAPG/Datapages Combined Publications Database

Showing 947 Results. Searched 195,372 documents.

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Long-Offset Approximations to NMO Function for a Layered Subsurface

E. Blias

Search and Discovery.com

... is a zero-offset time, x is an offset and VRMS is an RMS velocity. Traveltime function t(x) can be expanded into exact series of x2. It was first done...

Unknown

Long-Offset Approximations to NMO Function for a Layered Subsurface

E. Blias

Search and Discovery.com

... is a zero-offset time, x is an offset and VRMS is an RMS velocity. Traveltime function t(x) can be expanded into exact series of x2. It was first done...

Unknown

Abstract: TTI Anisotropic Depth Migration: Which Tilt Estimate Should We Use?; #90211 (2015)

Francois Audebert and Volker Dirks

Search and Discovery.com

...-way traveltime along the normal ray, the apparent slowness (traveltime gradient) at the emergence point, and the apparent NMO velocity, Vnmo (related...

2015

Abstract: Salt Shape Tomography; #90254 (2016)

Patrice Guillaume, Olivier Hermant, Stanislaw Warzocha

Search and Discovery.com

... ray-based nonlinear slope tomography, we compute Fréchet derivatives made of traveltime derivatives with respect to the depth parameters describing...

2016

Abstract: Gas-Hydrates - A Major Future Fuel Of India; #90315 (2017)

Kalachand Sain

Search and Discovery.com

..., attenuation and instantaneous frequency have been computed to characterize the gas-hydrate reservoirs. Several approaches based on seismic traveltime...

2017

Abstract: Near Surface and Anisotropy Modeling Strategies for Fast-Track Land Depth Imaging; #90319 (2018)

Ernesto Sandoval-Curiel, Daniele Colombo

Search and Discovery.com

...-resolution helicopter-borne transient electromagnetic data was utilized to constrain seismic traveltime tomography through cross-gradient structural...

2018

Vertical anomaly clusters: Evidence for vertical gas migration across multilayered sealing sequences

Martino Foschi, Joseph A. Cartwright, and Frank J. Peel

AAPG Bulletin

...<1242:LBCFIF>2.3.CO;2.Castagna, J. P., and S. Sun, 2006, Comparison of spectral decomposition methods: First Break, v. 24, p. 75–79.Castagna, J. P...

2014

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...

1992

Seismic Stratigraphy of Veracruz Tongue, Deep Southwestern Gulf of Mexico

Allen J. Bertagne

AAPG Bulletin

... 4(D), and Mexican Ridges folds to west. Vertical scale: two-way traveltime in seconds. Fig. 3. Segment of Line K5. Note chaotic wedge in sequence 4(C...

1984

Vp/Vs Ratio of a Heavy Oil Reservoir from Canada, #41598 (2015).

Carmen Dumitrescu, Larry Lines

Search and Discovery.com

... from traveltime (Figure 5), they both indicate the same anomalous areas, although the Vp/Vs values derived from inversion are generally lower than Vp/Vs...

2015

Joint 4D full-waveform inversion using enhanced template-matching objective function

Gaurav Dutta, Emmanuel Saragoussi, Xin Cheng, Markos Sourial, Yongbo Zhai, Chirag Parekh, Denes Vigh

International Meeting for Applied Geoscience and Energy (IMAGE)

... common practice now to use FWI with the full wavefield, it is desirable to have a robust 4D FWI approach that requires minimal data pre-processing...

2023

Fault MLReal: A fault delineation study for the Decatur CO2 field data using neural network predicted passive seismic locations

Hanchen Wang, Yinpeng Chen, Tariq Alkhalifah, Youzuo Lin

International Meeting for Applied Geoscience and Energy (IMAGE)

... applications (Wu et al., 2020). However, traditional methods like traveltime and double-difference relocation, and waveform imaging, while improving...

2023

Elastic FWI imaging of a complex presalt structure using NATS data

Arthur Henrique, Luiz Felão, Sergio Barragan, Florian Jouno

International Meeting for Applied Geoscience and Energy (IMAGE)

... the traveltime differences between synthetic and observed data and allows for a lower starting frequency than conventional FWI (Zhang et al., 2018...

2023

Ultrasound Tomography Optimalization by Using Robotic Application

Albertus Ariel Rahadi, Tedy Setiawan

Indonesian Petroleum Association

... drilling. In practice, the core measurement using ultrasonic tomography is still using the conventional method which is impractical and * requires a lot...

2016

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