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The AAPG/Datapages Combined Publications Database

Showing 20,827 Results. Searched 200,293 documents.

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I. Relation of Structural Section to Seismic Section

Robert E. Sheriff

AAPG Special Volumes

... compared to the amplitude of the incident wave is given by the change in the product of the densi y and velocity, as shown: [EQUATION] Where...

1981

Kapteyn's Transformation of Grain Size Distribution

Jiri Brezina

Journal of Sedimentary Research (SEPM)

...., 1957, Wave-generated ripples in nearshore sands: Beach Erosion Board, Corps of Engineers, Tech. Memo. no. 100, 42+23 p. KAPTEYN, J. C., 1903, Skew...

1963

Assessing and processing three-dimensional photogrammetry, sedimentology, and geophysical data to build high-fidelity reservoir models based on carbonate outcrop analogues

Ahmad Ramdani, Pankaj Khanna, Gaurav Siddharth Gairola, Sherif Hanafy, and Volker Vahrenkamp

AAPG Bulletin

... in Wadi Birk (coordinates: 46.64420 latitude; 23.28124 longitude), Saudi Arabia (Figure 1B). These laterally heterogeneous facies have high porosity (∼30...

2022

Implementation of the DIPSCAN Method to Estimate Boundary Dips in Complicated Structures by VSP Data

A. A. Tabakov, V.N.Ferentsi, H. Gravini

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... ϕ    T ( . ) - vector-column of the appropriate coordinates in 3D space. The equation of well trajectory in the new coordinate system becomes {x...

2006

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

... and Normal wave radius. The attributes are derived from the CRS stacking equation. Due to its full coverage data use, the CRS stack section results...

2007

The application of phased-array vibrator system in deep seismic exploration

Minghao Yu, Xiangbo Gong, Xiaojie Wan

International Meeting for Applied Geoscience and Energy (IMAGE)

... 2 In equation, u is the acoustic wave field; v is the acoustic wave velocity; t is the time; x and z are the spatial coordinates...

2022

PINNslope: Physics-informed neural network slope prediction and interpolation with positional encoding

Francesco Brandolin, Matteo Ravasi, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... slope attribute. The implementation comprises two fully-connected neural networks trained using the local plane wave differential equation as well...

2023

Gypsum-Oolite Dunes, Great Salt Lake Desert, Utah

Daniel J. Jones

AAPG Bulletin

... and cleavage fragments of gypsum, also small pancake-shaped crystals, well rounded 25%--Oolites, both sub-spherical and sub-cylindrical fecal pellet...

1953

Mantle Creep: Elasticoviscous Versus Modified Lomnitz Law, and Problems of "The New Global Tectonics"

Paul S. Wesson

AAPG Bulletin

.... Ahrens, T. J., and C. F. Peterson, 1969, Shock wave data and the study of the earth, in The application of modern physics to the earth and planetary...

1972

Application of Extended Elastic Impedance Method and Seismic Stochastic Inversion to Mapping the Distribution of Sandstones and Gas-Sand in LAPANGŽ Field, West Natuna Basin, Indonesia

Gilvano Matthew, Ignatius Sonny Winardhi

Indonesian Petroleum Association

... the well data. EEI is derived by substitution in the linearized Zoeppritz equation: R = A + B tan X (1) Then, R cos X = (A + B tan X) cos X (2...

2014

Abstract: AVAZ Inversion for Fracture Orientation and Intensity: a Physical Modeling Study; #90187 (2014)

Faranak Mahmoudian and Gary F. Margrave

Search and Discovery.com

... variation with the angle and azimuth (AVAZ) method. Jenner (2002) reformulated the Rüger (2001) equation for P-wave reflection coefficient from a boundary...

2014

Computer Simulation Models of Salt Domes

James C. Howard

AAPG Bulletin

... an intermediate cylindrical shape to an inverted teardrop shape. Equation (1) can be solved for the height of the dome at various positions along the horizontal...

1971

Optimization method of geometry and application based on Fresnel Gaussian beam forward modeling

Yang Jing, Yu Fuwen, Xu Xiaokun, Lv Shuang, Wang Xiangqian

International Meeting for Applied Geoscience and Energy (IMAGE)

... developed a forward method combining ray theory with wave equation [1].In 2006, Li Ruizhong introduced the advantage of Gaussian beam method...

2024

Structural Modification of Corals in Relation to Waves and Currents: Reef Biota

Richard R. Graus , John A. Chamberlain Jr. , Alexa M. Boker

AAPG Special Volumes

...: [EQUATION (6)] where [EQUATION] and [EQUATION] H is wave height; L is wavelength; T is wave period; t is the time measured from the instant a wave crest...

1977

Reverse-time migration of mobile marine vibrator data

Khalid Almuteri, Paul Sava, Jeffrey Shragge

International Meeting for Applied Geoscience and Energy (IMAGE)

... in the seismic wavefield. We compute the wavefields required by RTM using the acoustic wave equation in a generalized coordinate system that takes...

2022

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