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The AAPG/Datapages Combined Publications Database

Showing 19,691 Results. Searched 195,405 documents.

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Ascending

Basin-Filling Models: Chapter 9

Charles L. Angevine, Paul L. Heller, Chris Paola

AAPG Special Volumes

... systems, major additional independent variables include the wave climate, distribution of wind-driven currents, eustatic sea level, and the various...

1990

Estimation of Seismic Attenuation (Q): More Insight from Zero-Offset VSP

Mohammad Risyad

Indonesian Petroleum Association

... side of equation (2) versus frequency is performed. The slope, m can be expressed in Q-factor, Q as: 3. compressional wave attenuation is usually...

2018

Abstract: A Phase Shift Plus Interpolation Extrapolation for Two-way Wave Equation Migration; #90172 (2014)

Jianhua Pan

Search and Discovery.com

...Abstract: A Phase Shift Plus Interpolation Extrapolation for Two-way Wave Equation Migration; #90172 (2014) Jianhua Pan AAPG Search and Discovery...

2014

Concave Sand Grains in Eolian Environments: Evidence, Mechanism, and Modeling

B. T. Werner , E. Merino

Journal of Sedimentary Research (SEPM)

..., DURAND, J., AND MERINO, E., 1990, Water-transfer cylindrical structures in the Late Proterozoic eolian sandstones in the Taoudeni Basin, West Africa...

1997

COMBINING GEOSTATISTICS AND MULTI-ATTRIBUTE TRANSFORMS: A CHANNEL SAND CASE STUDY, BLACKFOOT OILFIELD (ALBERTA)

B. Russell, D. Hampson, T. Todorov and L. Lines

Journal of Petroleum Geology

... to the mapping procedure. Fig. 1 shows the distribution of wells in the 3D survey area, as well as a line, ("crossline 18"), from the P-wave seismic dataset...

2002

Abstract: High Quality Acoustic and Elastic Modeling; #90187 (2014)

Y. Jewoo, C. S. Shin, and R. P. Bording

Search and Discovery.com

... modeling accomplishes our goal of using the complete wave equation. But all of these techniques are compute intensive and much effort is required...

2014

Abstract: Converted Wave Shot Profile Wave Equation Migration Toolbox Kit; #90224 (2015)

Mark Ng

Search and Discovery.com

...Abstract: Converted Wave Shot Profile Wave Equation Migration Toolbox Kit; #90224 (2015) Mark Ng Datapages/Search and Discovery Article #90224...

2015

Evaluation of Seismic Exploration in Sub-Volcanic Reservoir Area by Synthetic Seismic Modeling

Yulia Nur Fajrina, Muhammad Ghazalli

Indonesian Petroleum Association

... at the processing. Then spherical divergence correction is applied because there is attenuation caused by interval and geometry of wave propagation...

2015

Use of Layered Formation Models in Deformation Analysis; #40853 (2011)

Eric Davis

Search and Discovery.com

... for smaller contrasts. For this work, the perturbation model was coded in Matlab, and the surface integral was written using cylindrical coordinates, which...

2011

Abstract: Microseismic Event Locations for Deviated Boreholes; #90187 (2014)

Amna Feroz and Mirko van der Baan

Search and Discovery.com

... location is solved. One of the main advantages of using S-P travel time is evident from equation (4) and (5) (4) (5) Hence source location coordinates...

2014

The Axial Ratio C/B as an Indicator of shape Selective Transportation

Luis A. Spalletti

Journal of Sedimentary Research (SEPM)

... from those of discoidal and bladed form, and the geometricity ratio is given by the equation [rods % + spherical %]/[discs % + blades...

1976

The emergence and impact of scientific machine learning in geophysical exploration

Umair bin Waheed

International Meeting for Applied Geoscience and Energy (IMAGE)

... as a forward solver for the eikonal equation and the wave equation. For example, Waheed et al. (2020) and Smith et al. (2020) showed how PINNs could be used...

2023

Sorting of Sediments in the Light of Fluid Mechanics

Douglas L. Inman

Journal of Sedimentary Research (SEPM)

... in suspension are spherical, of diameter d, and of the same specific gravity, then the settling velocity of the particles (equation 8) is a function of d only...

1949

Vertical Seismic Profiling--A Measurement that Transfers Geology to Geophysics: Chapter 2

B. A. Hardage

AAPG Special Volumes

... spherical divergence, such as dispersion, S-wave conversions, and scattering. One can establish the accuracy of amplitude processing near a VSP well...

1985

Abstract: Seismic Imaging of Imbricate Structures in Mountainous Area: Case Studies; #90211 (2015)

Nanxun Dai, Oz Yilmaz, Weizhong Wang, and Jie Zhang

Search and Discovery.com

... and the substratum model is estimated by half-space velocity analysis. (4) The subsurface image is obtained by wave equation based prestack depth...

2015

A double double-porosity model for wave propagation in patchy-saturated tight sandstone with fabric heterogeneity

Jing Ba, Mengqiu Guo, Wenhao Xu, Fengyuan Sun, Lin Zhang, Wei Cheng

Petroleum Exploration Society of Australia (PESA)

..., the corresponding local fluid flow governing equation is derived. The equations of wave propagation are The Australasian Exploration Geoscience...

2018

Methods of Calculating Total Organic Carbon from Well Logs and its Application on Rocks Properties Analysis; #41372 (2014)

S. Z. Sun, Y. Sun, C. Sun, Z. Liu, and N. Dong

Search and Discovery.com

... technique, analysis of TOC effects on rock properties is performed, showing the characteristics of high S-wave Impendence (SI), high Poisson’s ratio...

2014

Climate Models and their Application

Eric J. Barron, George T. Moore

Special Publications of SEPM

... course). The spherical truncations set the horizontal resolution. Typical model resolutions include R15 (Rhomboidal truncation with fifteen wave numbers...

1994

Computer Simulation of Nearshore Sediment Transport: ABSTRACT

Graeme F. Bonham-Carter

AAPG Bulletin

... and subaqueous topography, assuming constant wave conditions? A computer simulation model is used to explore these questions. Components of the model...

1969

Abstract: Subsalt Velocity Estimation Using Wave-Equation Tomography with Surface Offset Gathers; #90319 (2018)

Yujin Liu, Yan Wu, Xiongwen Wang, Tong W. Fei, Yi Luo

Search and Discovery.com

...Abstract: Subsalt Velocity Estimation Using Wave-Equation Tomography with Surface Offset Gathers; #90319 (2018) Yujin Liu, Yan Wu, Xiongwen Wang...

2018

Abstract: Joint OBN and 3-D DAS-VSP Data Acquisition and Processing in East China Sea; #91204 (2023)

Gang Yu1, Haibo Liu, Zhonglin Cao, Junjian Li, Jianguo Li, Yuanzhong Chen, Guangming He, Junjun Wu, Ximing Wang

Search and Discovery.com

... integral equation of one-way wave field continuation from the scalar wave equation and gave the explicit expression of angular frequency domain...

2023

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