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Welcome to the new Datapages Archives

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The AAPG/Datapages Combined Publications Database

Showing 1,097 Results. Searched 200,357 documents.

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NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers

E. Blias

Search and Discovery.com

... is utilized to determine an explicit formula for azimuthally-dependent NMO velocity in a HTI layered media with depth-varying orientation...

Unknown

NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers

E. Blias

Search and Discovery.com

... is utilized to determine an explicit formula for azimuthally-dependent NMO velocity in a HTI layered media with depth-varying orientation...

Unknown

Abstract: Near Surface Anomalies and Solutions; #90211 (2015)

Todd Mojesky, David LeMeur, and Ali Karagul

Search and Discovery.com

... Improta L., A. Zollo, A. Herrero, R. Frattini, J. Virieux, and P. Dell’Aversana, 2002, Seismic imaging of complex structures by non-linear traveltime...

2015

Unlocking the Potential of Conventional Narrow Azimuth Data by Full-Waveform Inversion: a Deep Carbonate Imaging Case Study, Offshore Indonesia

Jun Wang, Yonghe Guo, Putri Supriandini, Bahrul Yusrie, Natalia Anggriani

Indonesian Petroleum Association

... sensible velocity updates down to 3.5 kilometers. These updates to the model improve the seismic image and, importantly, reduce the depth...

2021

Streamlining subsurface insights: Single extrapolation for holistic Green's function generation

Hongwei Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... of migration velocity models. Traditionally, prestack depth migration (PSDM) based on ray-tracing-based Kirchhoff integration is predominantly employed...

2024

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

... overpressured mudstones have higher acoustic traveltime values than the normally pressured mudstones for a given depth, and the top of the overpressure...

2010

Abstract: Wavefront Picking for 3D Tomography and Full-Waveform Inversion; #90319 (2018)

Abdullah A. Theyab

Search and Discovery.com

... controling (QC) seismic firstbreak traveltime picks is critical for a successful tomographic inversion and maturation of a reliable near surface solutions...

2018

Application of generalized radon transform migration to crosswell seismic geometry

Shujaat Ali, Olga Podgornova, Takashi Mizuno, Joel Le Calvez

International Meeting for Applied Geoscience and Energy (IMAGE)

... in traveltime residuals was observed after this step (Figure 1). Some short wavelength residuals in the zero depth offsets in the tomography calibrated...

2024

Estimating Thermal Conductivity in Sedimentary Basins Using Lithologic Data and Geophysical Well Logs (1)

FREDERIC BRIGAUD , DAVID S. CHAPMAN , and SYLVIE LE DOUARAN

AAPG Bulletin

... depth interval (i.e., drill cuttings sample interval, which is about 3 m) is determined from the laboratory-calibrated conductivities and volumetric...

1990

A Modeling Study for Imaging in Structurally Complex Media: Case History

Hesham Moubarak

Search and Discovery.com

... parameters. The depth/velocity model was derived from a balanced geological section in North Eastern British Columbia foothill inferred from a 1998...

Unknown

A Modeling Study for Imaging in Structurally Complex Media: Case History

Hesham Moubarak

Search and Discovery.com

... parameters. The depth/velocity model was derived from a balanced geological section in North Eastern British Columbia foothill inferred from a 1998...

Unknown

Abstract: Navigating through the Red Sea Subsalt Structures: A Look-Ahead VSP Case Study from Saudi Arabia; #90319 (2018)

Ali A. Aldawood, Carlos Planchart

Search and Discovery.com

... a Zero-Offset Vertical Seismic Profile (ZVSP) survey, one can obtain a 1D time-depth profile at the well location. This velocity model can...

2018

VSP Fundamentals that Improve CDP Data Interpretation: ABSTRACT

J. E. Gaiser, J. P. Disiena

AAPG Bulletin

.... The areas covered are VSP acquisition, critical points of the processing sequence, and applications to borehole information in depth and CDP data in time...

1983

Subtle Discontinuity Detection and Mapping for Carbon Sequestration Assessment in the Illinois Basin

J. H. McBride, R. W. Keach II, H. E. Leetaru, W. J. Nelson

AAPG Special Volumes

.... The seismic data are displayed in traveltime: no detailed velocity information is available for time-depth conversion; however, because the lateral variation...

2009

Shallow Crustal Structure of the Solomon Islands Intra-Arc Basins from Sonobuoy Seismic Studies

A. K. Cooper, T. R. Bruns, R. A. Wood

Circum Pacific Council Publications

.... The computational method uses linear regres­ sion to determine the slope (k) of the velocity versus one-way traveltime curves. Linear regressions...

1986

Characterizing the Near Surface with VSP and Well Logs

Search and Discovery.com

... was calibrated. As shown in Figure 2c, the sonic traveltime becomes longer than VSP traveltime with increasing depth. Although sonic times are often expected...

2013

Structural and Tectonic Evolution of Oceanic Crust within the Jurassic Quiet Zone, Offshore Morocco: Chapter 14: African and Mediterranean Margins

James S. Holik, Philip D. Rabinowitz

AAPG Special Volumes

... analysis were used in deriving continuous velocity functions in the form of least-square linear regressions (Houtz et al., 1968). The velocity functions...

1992

Integration of Vertical Seismic, Surface Seismic, and Well-log Data at the Mallik 2L-38 Gas-hydrate Research Well, Mackenzie Delta, Canada

M. W. Lee, T. S. Collett, W. F. Agena

AAPG Special Volumes

... sediments in the depth interval 600900 m (19682953 ft) is estimated to be approximately 65 using equation 4, with the interval velocity of 2100 m...

2009

Induced seismicity hypocentral depth stability and sensitivity to Vp/Vs in the South Delaware Basin, West Texas

Alexandros Savvaidis, Anthony Lomax, Robin Dommisse, Caroline Breton, Matthew Shirley, Vincent OSullivan

International Meeting for Applied Geoscience and Energy (IMAGE)

... determinations. Depth determination is greatly complicated in the Delaware basin by the presence of the shallow, high seismic velocity, Ochoan salt...

2022

Abstract: Near Surface Imaging by Joint Traveltime and Q-Factor Inversion; #90319 (2018)

Aldo Vesnaver, Pier Paolo Bruno, Rongzhi Lin, Jinyeob Na

Search and Discovery.com

...Abstract: Near Surface Imaging by Joint Traveltime and Q-Factor Inversion; #90319 (2018) Aldo Vesnaver, Pier Paolo Bruno, Rongzhi Lin, Jinyeob Na...

2018

Enhanced ray-based tomography method

Jonathan Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... linear equations and least-squares problems: TOMS, 8, no. 2, 195–209. Zhou, H.-W., 2003, Multiscale traveltime tomography: Geophysics, 68, 1639–1649...

2024

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

Faranak Mahmoudian and Gary F. Margrave

Search and Discovery.com

... planes, and its elastic properties have already been determined using traveltime analysis. This experimental model represents a HTI layer. We follow...

2014

A stochastic modeling method of seismic velocity and anisotropy parameters in VTI medium using travel time detectability criterion

Andrey H. Shabelansky, Huafeng Liu, Cory J. Hoelting, Min Yang, Jinsong Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... such as depth uncertainty estimation. In this paper, we present a 3D stochastic method for generating velocity and anisotropy parameters models...

2022

Abstract: Seismic Imaging of the SW South China Sea Deep Crustal Structure shows Evidence for a Ductile Lower Crust during Rifting; #90236 (2015)

M. Delescluse, T. Pichot, N. Chamot-Rooke, M. Pubellier, Y. Qiu, G. Sun, J. Wang, and J.-L. Auxietre

Search and Discovery.com

.... A traveltime tomography inversion was first performed to obtain a 2-D velocity model of the crustal and upper mantle structures (Figure 2). Ray coverage...

2015

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