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The AAPG/Datapages Combined Publications Database

Showing 34,698 Results. Searched 200,357 documents.

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Abstract: Estimation of Group Velocity using Slant Stack Generalized S Transform Based Method; #90174 (2014)

Roohollah Askari, Robert J. Ferguson, and Kristof DeMeersman

Search and Discovery.com

...). The method is a based on the inversion of a surface wave dispersion curve (either phase or group velocity curves) calculated from a real data to a vertical...

2014

Delineation of Anomalously Pressured Gas Accumulations in the Riverton Dome Area, Wind River Basin, Wyoming

Ronald C. Surdam, Zun Sheng Jiao, Nicholas G. K. Boyd III

Wyoming Geological Association

... in the fluid phase (Surdam et al., 1997). As a result, the anomalous velocity volume shown in Figure 11B is an important lead as to where to explore...

2000

Reveal The Velocity Anomalies in Complex Overburden and Enhanced The Imaging through Shallow Gas: A Case Study in SisiNubi Mahakam, Indonesia

Annas Astuti, Yohanes Kristomo, Bee Jik Lim, Ginanjar Satria, Natalia Anggriani

Indonesian Petroleum Association

... challenges in the survey area. The unresolved strong velocity variations can result in incorrect phase and amplitude information at the deeper target level...

2019

Wave scattering by the formation velocity perturbation surrounding a fluid-filled borehole

Zhou-Tuo Wei

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the undisturbed formation and the phase of the scattering wave reflects the positive and negative velocity variations under the Born approximation...

2022

Abstract: Structure and Rheology of the Arabia-Eurasia Zagros and Makran Plate Boundaries Inferred From Pn-Tomography; #90297 (2017)

Ali Al-Lazki

Search and Discovery.com

... lithospheric mantle velocity and anisotropy at the Arabia– Eurasia plate boundary. Pn phase is a guided high-frequency P-wave that propagates between...

2017

Abstract: Estimation of seismic anisotropy parameters in the presence of lateral heterogeneity using WAVSP; #90254 (2016)

Ali A. Shaiban, Carlos Planchart

Search and Discovery.com

... is analyzed here using the phase slowness method on synthetic walkaway VSP (WAVSP) data. The synthetic data was generated using a velocity model with known...

2016

Chapter 9: Application of the IER Strategy for Natural Gas Exploration

Ronald C. Surdam, Zun S. Jiao

Montana Geological Society

.... According to the conceptual model developed by D3R, this slow velocity band is a function of a free gas phase in the fluid system (e.g., "gas...

1997

Seismic Modeling of Porosity Distribution in a Miocene Reef, Salawati Island, Indonesia

William T. Valenta

Indonesian Petroleum Association

... is the A-2 velocity log with two 10-40 Hz synthetic traces. The first one is zero-phase as before; the second is the acoustic impedance trace. It can...

1979

Modified Residual Migration

Craig J. Beasley, Rolf Klotz

Southeast Asia Petroleum Exploration Society (SEAPEX)

... to phase-shift migration and thus, is exact. However, evaluation of the accuracy of time migration in a setting of lateral velocity variations, where...

1992

Abstracts: Full Waveform Inversion Using One-way Migration and Well Calibration; #90173 (2015)

Gary F. Margrave, Robert J. Ferguson, and Chad M. Hogan

Search and Discovery.com

... band 0-5 Hz. Figure 2b shows the migration velocity model used and Figure 2c is the updated model formed by adding the scaled and phase-rotated...

2015

Seismic Velocity Dispersion and the Petrophysical Properties of Porous Media

Search and Discovery.com

...’s amplitude spectrum, whereas phase velocity dispersion changes the phase spectrum. Therefore, uncorrelated vibrator data are appropriate to measure the small...

2013

4D image velocity scan to improve the 4D quantitative interpretation

Mohamed Hatab, Colin MacBeth

International Meeting for Applied Geoscience and Energy (IMAGE)

...4D image velocity scan to improve the 4D quantitative interpretation Mohamed Hatab, Colin MacBeth 4D image velocity scan to improve the 4D...

2022

Analytical and Numerical Studies of Sand Erosion in Electrical Submersible Pump (ESP) Systems

Saúl Gómez Díaz de Bonilla, Her-Yuan Chen

Unconventional Resources Technology Conference (URTEC)

... parameter. The problem for solid velocity calculations involves a two-phase liquid-solid flow. For the single liquid phase, there are a set of analytical...

2019

Integration of Geologic Data into Structural Imaging of the Andean Subthrust, Peru; #41605 (2015)

Margaret A. Stratton, Robert Vestrum, Dennis Ellison

Search and Discovery.com

... uncertainty resulting from the velocity structure in the hanging wall of the overthrust. Given the structural uncertainty and the under-constrained...

2015

Flowback Analysis of the Abadi Field

Iwan Kurniawan

Indonesian Petroleum Association

... is equivalent to the carrier phase liquid flowing past a stationary particle at a velocity equal to the terminal settling velocity of the particle...

2013

Sediment Movement in Relation to Current Velocity

Henry W. Menard

Journal of Sedimentary Research (SEPM)

... cm/sec (USWES, 1935a). Gilbert's data show that Sand C (3.17 ram) began to move in a smooth phase when the velocity was 61.6 cm/sec yet was not rippled...

1950

Abstract: Estimation of Q-factor and Phase Velocity Using the Recovered Stress-strain Relaxation Spectrum; #90172 (2014)

Dali Zhang, Michael P. Lamoureux, Gary F. Margrave

Search and Discovery.com

...Abstract: Estimation of Q-factor and Phase Velocity Using the Recovered Stress-strain Relaxation Spectrum; #90172 (2014) Dali Zhang, Michael P...

2014

Optimized downward continuation for the one-way wave equation in TTI media

Cosmin Macesanu, Faqi Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

..., and its purpose is to correct the phase for waves propagating vertically. (Here vz is the vertical phase velocity, which is different than v p...

2022

Quantitative analysis of DAS recorded P-wave generated by perforation shots

Peiyao Li, Ge Jin

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Further, we show the spatial variation of phase velocities for the pre-fractured wellbore section and the mode transitions in the phase-velocity analysis...

2022

Despiking Ultrasonic Doppler Velocity-Profiling Data

Jonathan D. Wright, Jaco H. Baas

Journal of Sedimentary Research (SEPM)

...Despiking Ultrasonic Doppler Velocity-Profiling Data Jonathan D. Wright, Jaco H. Baas 2013 954 961 Vol. 83 (2013) No. 11. (November) A practical...

2013

Abstract: Attenuation, Velocity Dispersion and the Fate of the Vibroseis Signal; #90211 (2015)

Bernd Milkereit, Flora Sun, Wei Qian, and Thomas Bohlen

Search and Discovery.com

... minor travel time changes (in terms of ms) will alter the correlation process. The perfect zero-phase correlation wavelet only exists without velocity...

2015

Resolving complex velocity and gas absorption features with full-waveform inversion in the Taranaki Basin, New Zealand

Yuelian Gong, Dominic Fell, Robert Hunn, Richard Bisley, Alexander Karvelas, Bee Jik Lim

Petroleum Exploration Society of Australia (PESA)

... attenuation and phase distortion could significantly impact the velocity model building and obscure and dim the imaging under the gas clouds. Visco-acoustic...

2019

P-wave velocity inversion with average velocity analysis method

Yan Yuefeng, Jing Shaodong, Wang Yingwei, Zhong Chuhan

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the ith layer, respectively. The fundamental-order dispersion curve can be plotted through wavelength and phase velocity. Extracting the corresponding depth...

2024

Abstract: Case Study- High Resolution Velocity Model Building to Improve Carbonate Reefs Image in Tz Area; #91204 (2023)

Hongjun Zhang, Yang Chen, Zhengzheng Zhou, Xiang Li, Hotma Yusuf, Haryono Haryanto, Farid Dasa Marianto

Search and Discovery.com

...Abstract: Case Study- High Resolution Velocity Model Building to Improve Carbonate Reefs Image in Tz Area; #91204 (2023) Hongjun Zhang, Yang Chen...

2023

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