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The AAPG/Datapages Combined Publications Database

Showing 59,999 Results. Searched 188,833 documents.

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Quantitative Assessment of Hydrocarbon Charge Risk in New Ventures Exploration: Are We Fooling Ourselves?

Noelle B. Schoellkopf

AAPG Special Volumes

... at several well locations across the basin. As shown in Figure 5, the effect of this first velocity model on the depth maps was to create a dip...


Abstract: Automatic High-Density Constrained Velocity Picking; #90211 (2015)

Emil Blias

Search and

... functions can be used to build a depth velocity model for pre-stack and post-stack depth migration. Acknowledgements I would like to thank Valentina...


2.2 Basement Involved: 2.2.3 Passive Margins: Guyana Offshore

W. J. Jankowsky and G. Schlapak

AAPG Special Volumes

... to depth (Figure 7). The monoclinal "ramp" underneath the carbonate shelf edge disappears; the top of the base ment and the overlying strata now dip gently...


A Simple Guide to Volumetrics

Ashley Francis

GEO ExPro Magazine

... with which it can be directly measured. Instead, GRV is estimated indirectly, using a top structure depth map and knowledge of (or assumption about...


Seismic Imaging of the Overturned Limb of a Footwall Syncline in the Alberta Foothills of the Canadian Rocky Mountains and Its Impact on Exploration; #30533 (2017)

Andrew C. Newson

Search and

... improvement, and the definition of robust velocity functions. This was followed by the Kirchhoff PSTM. (Geosystems, 2006). Pre Stack Depth Migration...


Inferring Stratigraphy from Seismic Data

R. E. Sheriff

AAPG Bulletin

... decreases with depth, and hence resolution deteriorates with depth. At 10,000-15,000-ft (3,000-4,500 m) depth, velocity may be in the 12,000-20,000 ft/sec...


Recording and Processing Procedures for Multi-channel Seismic-Reflection Data Collected in the Western Ross Sea, Antarctica

S. V. Dadisman, H. F. Ryan, D. M. Mann

Circum Pacific Council Publications

... primary reflection events (Fig. 4 A ) . To overcome this problem, the velocity analysis was enhanced by first dip-filtering the CDP-gathered data using...


North West Shelf 3D Velocity Modeling

Laureline Monteignies, Cedric Magneron, Natalia Gritsajuk

Petroleum Exploration Society of Australia (PESA)

... available were: • • • • 108 3D seismic velocity data sets 130 2D velocity data sets 889 wells with time-depth functions 5 regional interpretation...


Application of Advanced Depth Imaging Technology in Shallow Water Offshore Indonesia

Michael Gidding, Suyang Chen, Steven Wiseman, Moch Asrori, Richard Bolton

Indonesian Petroleum Association

... and 3m depth interval) using this velocity model showed substantial improvements in imaging with sharper fault definition, increased event continuity...


Mainstream Mantle Convection: A Geologic Analysis of Plate Motion

T. H. Nelson , P. G. Temple

AAPG Bulletin

...). Using our chosen values for the maximum mainstream velocity and velocity gradient, we have calculated (equation 1) that the depth to the base...


Moho Topography Beneath the Alaska Range: Results from BEAAR - Abstract

Elizabeth Veenstra, Douglas Christensen

Alaska Geological Society

.../s and a mantle velocity of 8.2 km/s is used to calculate a suite of synthetic receiver functions using different interface depths; each stack...


Abstract: Seafloor Morphology and Processes Active in Offshore: Anthropogenic Implications of Mass Failure Processes

Lorena Moscardelli, Lesli .J. Wood, and Dallas Dunlap

Search and

...-up height above the slide event can be easily calculated using the thickness of the slide and the water depth at which the failure occurs (assuming...


Section 2: Improvement of Seismic Images of Complex Tectonic Structure in Deep Water with Research-Level Processing Sequences

John Miller and Roland von Huene

AAPG Special Volumes

... have common midpoints at a common depth point (CDP). 3. Velocity analysis--applies the normal move-out (NMO) equation to the data using a series...


Structure and Stratigraphy of the Blake Escarpment Based on Seismic Reflection Profiles: Rifted Margins

R. E. Sheridan , C. C. Windisch , J. I. Ewing , P. L. Stoffa

AAPG Special Volumes

... computer derivation and applications of velocity functions: Geophysics, v. 34, p. 859-881. Taylor, P. T., I. Zietz, and L. S. Dennis, 1968, Geologic...


ABSTRACT: Pre-Stack Depth Migration and the Imaging of Complex Structures in the Wyoming Thrust Belt

Richard Postma

Wyoming Geological Association

..., will image the next horizon at the correct depth. The model derivation method will be shown using water tank model data. A few overthrust lines will be shown...


Unlocking Potential Reservoir of Pre-Parigi Carbonate to New Opportunity Gas Field; A Case Study of Belut Structure - Offshore North West Java

Lambertus Fransisco Yulianus, Yasinta Dewi Setiawati, Sandra Radiansyah, Prawoto I. Syuhada

Indonesian Petroleum Association

... more precise horizon interpretation. 2. Depth converting was using layer cake velocity model by adding control wells SUM-1 and SUM-3 (12 km distance...


Fault Mapping and Reservoir Characterization from Amplitude and Dip/Azimuth Extraction in Ship Shoal 274/293 Field

Christopher S. Kulander, Joel S. Watkins

GCAGS Transactions

... of the producing intervals with velocity data from sonic logs suggests that the throw of these faults is 15-25 m. Electric log and dip variations observed...


PSDM for Unconventional Reservoirs? A Niobrara Shale Case Study

Morgan P. Brown, Joseph H. Higginbotham, Dave List, Chris Lang

Unconventional Resources Technology Conference (URTEC)

... anisotropic PSDM. Azimuthal velocity analysis using Wave Equation PSDM (WEM) azimuth angle gathers indicates a very weak level of overburden azimuthal...


PSDM for unconventional reservoirs? A Niobrara Shale case study; #80405 (2014)

Morgan P. Brown, Joseph H. Higginbotham, Cosmin Macesanu, Oscar E. Ramirez, Dave List, Chris Lang

Search and

... Niobrara to within 4 feet on a new well, but we show enough variation in Thomsen δ to justify anisotropic PSDM. Azimuthal velocity analysis using Wave...


Transformation of Resistivity to Pseudovelocity Logs

Albert J. Rudman , Joseph F. Whaley , Robert F. Blakely , Maurice E. Biggs

AAPG Bulletin

... to anomalous drilling mud resistivities. Acheson, C. H., 1963, Time-depth and velocity-depth relations in western Canada: Geophysics, v. 28, p. 894-909...


A Reasonable View of the Seismic Anomaly

R. W. Dudley

Tulsa Geological Society

... error with depth simple averages were taken every 500 feet using the points of control in each computation through a depth range of 1,000 feet...


The Limitations of Seismic Modelling of Geological Structures

B. L. N. Kennett

Petroleum Exploration Society of Australia (PESA)

... and not require extravagent resources if they are to be cost effective. avoided by working with velocity logs digitised in depth, if the synthesis...


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