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The AAPG/Datapages Combined Publications Database

Showing 34,490 Results. Searched 200,663 documents.

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The Role of Statics Application in the Imaging of Sub-Surface in Fold Belt Areas, #40746 (2011)

Arun Kumar Arya, Bharat Chandra Joshi, Narinder Pal Singh,

Search and Discovery.com

... is already incorporated at the time of calibration during velocity model building in advanced processing. Check shot or VSP data of available deep wells...

2011

Vertical and Lateral Seismic Resolution and Attenuation: Part 7. Geophysical Methods

R. E. Sheriff

AAPG Special Volumes

... are distinct, and timing of their separation gives the wedge thickness (Figure 4). As side lobes begin to interfere, amplitude begins to change and minor timing...

1992

Abstract: Correlation of P-P and P-S Data in Yinggehai Basin, South China Sea; #90171 (2013)

Jinfeng Ma, Le Gao, and Igor Morozov

Search and Discovery.com

...). VSP measurements only provided the average P-wave velocity in this well. When making multiple P-S offset synthetic seismograms (Figure 3), we...

2013

Combining high resolution modelling and one-way wave field extrapolation migration to image beneath a complex overburden: A case study from Porcupine Basin, Ireland

Partha Pratim Mandal, Weidi Koh, Julien Bluteau, David Laws, Jennifer Greenhalgh

Petroleum Exploration Society of Australia (PESA)

... imaging challenge is the effect of high velocity, laterally variable Late Cretaceous chalk. The transition from this carbonate to underlying clastic...

2016

Gas Hydrates: Part III: Rock Physics Hydrate Experiments

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... effect for the P-wave velocities. For the unconsolidated sand sample they found that for a hydrate concentration of 50% the P-wave velocity was 2,700 m...

2012

Oil generation as the dominant overpressure mechanism in the Cenozoic Dongying depression, Bohai Bay Basin, China

Xiaowen Guo, Sheng He, Keyu Liu, Guoqi Song, Xunjun Wang, Zhongsheng Shi

AAPG Bulletin

... the top of the overpressure can be clearly identified. Acoustic traveltime versus effective vertical stress analysis of more than 300 wells...

2010

Abstract: Maximize the Potential of Seismic Data in Shale Exploration and Production … Examples from the Barnett Shale and the Eagle Ford Shale; #90187 (2014)

Joanne Wang and Duane Dopkin

Search and Discovery.com

.... The mirror effect of azimuthal dependent behavior is clear when the data is displayed in 360 degree azimuth. Velocity inversion is carried out over all...

2014

The Global Offset Seismic Approach: Improving Seismic Imaging In Complex Geological Settings

Paolo Dell'Aversana

Petroleum Exploration Society of Australia (PESA)

... to undershoot high velocity 'shallow' layers that often can produce a shield effect for the propagating wave-field (Dell' Aversana et al., 2000- 2003...

2004

Echo phone for direct attenuation indication

Lu Liu, Tong Fei, Fuhao Qin, Yi Luo

International Meeting for Applied Geoscience and Energy (IMAGE)

..., 2018, Near-surface velocity estimation using source-domain full traveltime inversion and early-arrival waveform inversion: Geophysics, 83, no. 4...

2022

3-D AVO Analysis and Modeling Applied to Fracture Detection in Coalbed Methane Reservoirs

Antonio C.B. Ramos, T.L. Davis

Rocky Mountain Association of Geologists

.... This effect is less important for S-wave velocity, which contributes to lower VpNs ratio in gas saturated condition. Confining pressure at the level...

1997

The Fabric, or Internal Structure, of Rocks … The Patterns of Anisotropy; #42188 (2018)

Heloise B. Lynn

Search and Discovery.com

... of source to receiver has a proportional effect upon the P-wave velocity. The standard explanation for the laboratory observations is that increasing...

2018

ABSTRACT:MULTICOMPONENT OBC (4C) PRESTACK TIME IMAGING OVER PAMBERI, LRL BLOCK, OFFSHORE TRINIDAD

Tony Johns, Carmen Vito and Raul Sarmiento

Geological Society of Trinidad & Tobago

... by lithological change, as they all comprise of shelf clastics (early to late Pleistocene sands and shales from the Orinoco). The observed fault shadow effect...

2007

Mapping with Two-Dimensional Seismic Data: Part 7. Geophysical Methods

I. R. Gordon

AAPG Special Volumes

... on line A561-80 could be shifted down about 52 msec. Fig. 3. Illustration showing effect of lateral differences in velocity on conversion of time and depth...

1992

An Example of 3-D AVO for Lithology Discrimination in Widuri Field, Asri Basin, Indonesia

Steven W. Smith, Larry Danahey, Romina Himawan, William E. Harmony, H. Lee Gilmore, John W. Armon, Tony L. Bowman, Wayne Smith

Indonesian Petroleum Association

... decreasing AVO while sand has flat AVO response (no change in amplitude with offset). AVO attributes P and G or intercept and gradient inverted from 3-D...

1995

Joint Anisotropic Parameter Inversion Based on Nonhyperbolic Moveout and Azimuthal Amplitude Variance

Fangyu Li, Jie Qi, Bin Lyu, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

... of vertical fracture, the unconventional shale reservoir exhibits both nonhyperbolic moveout effect in far-offset gathers and azimuthal arrival time...

2016

Bering Sea Velocity-amplitude Anomalies: Exploring the Distribution of Natural Gas and Gas-hydrate Indicators

Ginger A. Barth, David W. Scholl, and Jonathan R. Childs

AAPG Special Volumes

... of velocity anomalies from the interval time anomalies, is no longer correct. Therefore, in this study, we present interval traveltime anomalies...

2009

The Application of PSDM VTI Method to Generate a Velocity Model That Can Solve the Mistacking Problem

Aulia Ahmad Nafis, Hasan Nurudin, Ikhsan Hanurogo, Bagus Sapto M, Ahmad Zaenudin

Indonesian Petroleum Association

... the difference of the velocity that propagates based on its direction. And it will make the CDP gather have hockey stick effect as in Figure 2...

2018

Assessing properties of internal multiples for different geologies

Paul Ras, Mikhail Davydenko, Eric Verschuur

International Meeting for Applied Geoscience and Energy (IMAGE)

..., we introduce three challenging 1D earth models in Figure 1. Model 1 is relatively simple and derived from a seismic velocity model for a major gas...

2022

Seismic Processing Strategies in the Deep Water Kutai Basin … Gendalo Hub Pre-Stack Depth Migration

Xiuyuan Li, Harmit Singh, Joe Zhou, Graham Hodgkiss, Neil Young, Helmut Hsiao

Indonesian Petroleum Association

... as was evident in the imprint of residual velocity error and channeling effect in the Gamma attribute (ratio between migration velocity and true velocity...

2011

Deep-Reading Technologies

Kim Gunn Maver, Colin Hulme, Mark McCallum, Ajay Nalonnil

GEO ExPro Magazine

... provide a unique insight into the effect of pressure change on the lithologic framework and associated movement of reservoir fluids. In connection...

2009

Method of Spatial Observations of RNP Under the Conditions of the Reef Zone of the Orenburg Cis-Urals

I. A. Mushin

Petroleum Geology: A Digest of Russian Literature

... RNP observations was carried out in sectors with simple relief and a well expressed thin zone of low velocity; therefore, the effect of the relief...

1963

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