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The AAPG/Datapages Combined Publications Database

Showing 31,858 Results. Searched 191,954 documents.

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Migration Velocity Analysis by Migration of Velocity Spectra

Craig J. Beasley, Rolf Klotz

Southeast Asia Petroleum Exploration Society (SEAPEX)

..., the analogy with prestack migration becomes more tenuous, yet, the phase and amplitude of the velocity spectra remain closely related to the seismic...

1992

ABSTRACT: Crust and Upper Mantle Structure in Northeast of Tibet from Rayleigh Wave Tomography

Lun Li

Houston Geological Society Bulletin

... frequencies with a narrow bandwith of 10 mHz. Average phase velocity varies from 3.21 km/s at 20 s to 3.84 km/s at 100 s. Compared to the average phase...

2012

Practical Consideration in Using Velocity, Frequency, and Phase in Stratigraphic Seismic Exploration: ABSTRACT

Norman S. Neidell

AAPG Bulletin

...Practical Consideration in Using Velocity, Frequency, and Phase in Stratigraphic Seismic Exploration: ABSTRACT Norman S. Neidell 1984 512 512 68 4...

1984

Abstract: Radial anisotropy in the northeastern Tibetan Plateau from Surface Wave Tomography

Lun Li

Houston Geological Society Bulletin

... mHz. Average phase velocity varies from 3.55 km/s at 20 s to 4.55 km/s at 100 s, which are higher than previously obtained Rayleigh wave phase...

2013

Abstract: Estimation of Dispersive Parameters of Surface Wave Using the Generalized S Transform; #90187 (2014)

Roohollah Askari and Robert J. Ferguson

Search and Discovery.com

... to simultaneously estimate wavenumber, group velocity, phase velocity and frequency dependent attenuation. The group velocity is obtained from...

2014

Abstract: Optimum Aperture Length for Improving Dispersion Curve Analysis in CMP Cross-Correlation of Surface Waves; #90187 (2014)

Roohollah Askari, Robert J. Ferguson, and Helen Isaac

Search and Discovery.com

... the phase velocity for each CMP gather, and, we convert the resulting dispersion curve to a vertical shear wave velocity by an inverse procedure...

2014

Recent Experiences with Seismic Imaging and Velocity Analysis: Abstract

John L. Toldi, Nathaniel G. Tilander

Indonesian Petroleum Association

...Recent Experiences with Seismic Imaging and Velocity Analysis: Abstract John L. Toldi, Nathaniel G. Tilander 1998 350 350 This paper presents recent...

1998

Production Modeling for Velocity String Applications in Unconventional Wells

Suat Bagci, Tina Chang

Unconventional Resources Technology Conference (URTEC)

...-sectional area taken up by liquid in the two-phase flow is the liquid holdup. For the velocity string to give full gas separation benefit as shown...

2019

Seismic Velocity Sensitivity Analysis: Gulf of Mexico Example, Pony Field; #50479 (2011)

Ryan Mann, Henry Zollinger, Steve Checkles

Search and Discovery.com

...Seismic Velocity Sensitivity Analysis: Gulf of Mexico Example, Pony Field; #50479 (2011) Ryan Mann, Henry Zollinger, Steve Checkles Seismic Velocity...

2011

Abstract: A Geophysical Appraisal of the East Spar Gas/Condensate Field

Adam Craig

Petroleum Exploration Society of Australia (PESA)

... the phase and no closure in time, requiring accurate velocity possibly related to gas permeation throughout response interpretation for depth conversion...

1997

High Velocity Zones in Deep Mini-Basin Miocene Sediments, Eugene Island, Northern Gulf of Mexico; #40613 (2010)

Fred F.C. Snyder; N. Biles; L. Den Boer; P. Hooyman; G. Jamieson; C. Sayers

Search and Discovery.com

... ©WesternGeco Average sonic trend 12500 ft/sec Average sonic trend 9000 ft/sec SS: calc cem Velocity model at 21,000 ft. E-Dragon Phase II Wells...

2010

Determination and Delineation of Anomalously Pressured Gas Accumulations in the Siberia Area, Washakie Basin, Wyoming

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

Wyoming Geological Association

... in Figure 8 is the presence of significant free gas in the fluid phase in the fluidflow system (Surdam et al., 1997). Thus, the anomalous velocity volume...

2001

Abstracts: Determining Elastic Constants of an Orthorhombic Material by Physical Seismic Modeling; #90173 (2015)

Faranak Mahmoudian, Gary F. Margrave, P. F. Daley, and Joe Wong

Search and Discovery.com

... elastic constants. Elastic constants are most often found from phase velocity measurements which for anisotropic media can be quite difficult. The P...

2015

Application of Visco-Acoustic Full Waveform Inversion to Shallow-Water, Shallow-Gas Data, #41802 (2016).

Xin Cheng, Ronan Petton, Ian Anstey, Wai-Leong Lai, Denes Vigh, Gavin Menzel-Jones

Search and Discovery.com

... presents challenges to seismic imaging due to the localized velocity variations and general Q effects (amplitude attenuation and phase dispersion...

2016

Full Waveform Inversion for Complex Near-Surface Imaging Using SEG SEAM II Synthetic Model; #42322 (2018)

Ali A. Mohamed, Abdullatif A. Al-Shuhail

Search and Discovery.com

... East, karst features and unconsolidated sediments make the problem more difficult by introducing a complex velocity contrast, and complex anisotropy...

2018

ABSTRACT Role of Internal Waves Within Ponded Turbidity Currents: Experimental Data and Deposit Implications, #90104 (2010)

Patacci Marco; McCaffrey William D.; Haughton Peter D.

Search and Discovery.com

... travel from the flow inlet toward the confining slope along the internal density interface with a phase  velocity much higher than that of the ponded...

2010

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

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

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