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The AAPG/Datapages Combined Publications Database

Showing 17,714 Results. Searched 200,693 documents.

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Unraveling US GoM North Green Canyon subsalt complexities with sparse nodes

Katarina Jonke, Jingqian Kang, Sandra Garzon, Gino Alexander, Ganyuan Xia, Gabriel Ritter, Ahmed Afifi

International Meeting for Applied Geoscience and Energy (IMAGE)

... interpreting on the new data is not without challenges, the new velocity model has revealed a more complex geology driven primarily by an earlier...

2024

Least-squares reverse time migration: Lessons learned from recent applications in challenging areas of the Santos Basin, Brazil

Jos Rodrigues, Felipe Duarte, Danilo Domingos, Bruno Pereira-Dias, Elionardo Pintas

International Meeting for Applied Geoscience and Energy (IMAGE)

... (correlation between source and receiver wavefields of reflections coming from strong contrasts in the migration velocity model) and migration smiles (due...

2022

Abstract: Advanced Seismic Imaging Application of Common Reflection Surface Stack (CRS) Technology on 3D Seismic Data of Tembungo Field, Offshore Sabah, Malaysia (Paper 4)

Ahmad Riza Ghazali, Nor Azhar Ibrahim, M. Firdaus A. Halim

Geological Society of Malaysia (GSM)

.... This is worsen by gas wipeout, multiples, low signal-to-noise (SIN), and complex faulting at the reservoir level. To solve these problems, an integrated...

2003

Direct Detection of Hydrocarbons: ABSTRACT

C. I. Craft

AAPG Bulletin

... space of an aquifer by the gas and an accompanying decrease in both the velocity and density of the aquifer. Refined data-acquisition techniques...

1973

Seismic Models of 15 Stratigraphically Controlled Oil and Gas Fields Containing Sandstone Reservoirs in Rocky Mountain Basins: ABSTRACT

Robert T. Ryder, Gerald N. Smith, Myung W. Lee

AAPG Bulletin

... consists of 30 layers and several hundred velocity and density values. Effects of inelastic attenuation, interbed multiples and diffractions...

1980

ABSTRACT: Limitations of 3-D Seismic to Meet its Objectives: A Case History; #90051 (2006)

Mohamad Samir Nahhas, Osama Abdel-Aal

Search and Discovery.com

... of this vibroseis data is 32. The data set suffered from multiples, statics and low signal to noise ratio. Imaging of the subsurface fault patterns...

Unknown

Igneous Intrusions in the North-West Canning Basin and Their Impact on Oil Exploration

S. A. Reeckmann, A. J. Mebberson

Petroleum Exploration Society of Australia (PESA)

... layering at high angles and are commonly associated with reflection multiples and diffractions (Figure 3). In places, the relative high velocity...

1984

The Wave Equation Applied to Migration

D. Loewenthal, L. Lu, R. Roberson, J. Sherwood

Southeast Asia Petroleum Exploration Society (SEAPEX)

... alternative migration techniques. Particular advantages are 1) the possibility of using a detailed velocity model for the migration and 2) the preservation...

1978

Geophysical Reconnaissance on African Shelf: I. Cape Town to East London

R. Leyden , M. Ewing , E. S. W. Simpson

AAPG Bulletin

.... Except for disturbance by reverberation at the beginning of the section, probably the result of multiples from shallow high-velocity material (Fig. 4...

1971

4D Seismic … Status and Future Challenges

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

.... The method is particularly suitable as the velocity of sound waves can be used to differentiate easily between high-velocity water-bearing and lower...

2007

Seismic Imaging Technology: Part I: Acquisition

Martin Landrø, Lasse Amundsen

GEO ExPro Magazine

...) statistics, only 17 of 229 deep water GoM exploration wells made commercial discoveries. Since deep water wells cost between US$ 50-100 million...

2008

Application of Fullwaveform Tomography to VSP Walkaway Data

Eric Takam Takougang, Youcef Bouzidi

Petroleum Exploration Society of Australia (PESA)

... on iteratively updating a starting velocity, density and/or attenuation model by minimising the difference between the field data and the modelled data...

2016

Abstract: LSPSM for Pre-and Poststack Time Lapse Studies; #90187 (2014)

Abdolnaser Yousefzadeh and John C. Bancroft

Search and Discovery.com

...nt due to different acquisition parameters between and (Yousefzadeh and Bancroft, 2012). When two acquisition geometries are similar, and change in the ve...

2014

Application of TTI Reverse Time Migration, Deepwater Offshore Malaysia (Paper P5)

J. Sun, B. Mishra, C. Jiao, J. Sun, G. Hodgkiss, A. Bisset

Geological Society of Malaysia (GSM)

... velocity models and to image steeply dipping reflectors. It is the preferred imaging tool in areas where sharp velocity contrasts due to salt, or other...

2012

Subsalt Imaging: An Integrated Approach to Image Improvement of Vintage Data, #42076 (2017).

Evans Owah, Christian Rivera, Marjolaine Lahmi, Michel Courbe

Search and Discovery.com

... prospects. Pre-stack depth migration has been known to help improve the seismic image around complex targets with sharp lateral velocity variations...

2017

Self-parametrizing seismic data processing modules: An example on coherent noise suppression

Simone Re, Ran Bachrach, Massimo Clementi, Collin Wilson

International Meeting for Applied Geoscience and Energy (IMAGE)

... and to adaptively subtract it from seismic records, thus overcoming the risk of ineffective discrimination between the useful and the undesired...

2024

9C data acquisition for near-surface imaging in a quick-clay landslide-prone site in SW Sweden

Tatiana Pertuz, Alireza Malehmir

International Meeting for Applied Geoscience and Energy (IMAGE)

... and travels near the surface of the earth, and body waves, a small fraction of the energy that travels down and reflects at boundaries as primaries, PP or SS...

2022

Petrophysical Classification of Siliciclastics for Lithology and Porosity Prediction from Seismic Velocities (1)

LEV VERNIK and AMOS NUR

AAPG Bulletin

... measurements. The velocity ratio V[p]/V[s] is frequently used for lithology discrimination (e.g., Tatham, 1982), and it was tempting to check...

1992

Application of Anisotropic 3D Reverse Time Migration to Complex North Sea Imaging; #41573 (2015)

M. A. Hall, I. F. Jones, M. C. Goodwin, I. D. Berranger, H. Zhou, P. A. Farmer

Search and Discovery.com

... wavefield. Introduction In practice, each of these wavefields will generally travel both up and down when the velocity model is complex, when turning...

2015

Abstracts: The Conventional and Non-conventional Seismic Differencing; #90173 (2015)

Vanja Vracar and Robert J. Ferguson

Search and Discovery.com

..., Alberta, Canada Summary We present a comparison between conventional time-lapse differencing and a new non-conventional differrencing method based...

2015

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