Azimuthal Anisotropy „ A New Interactive Approach Leads to More Accurate Imaging

Graeme Eastwood

Petroleum Exploration Society of Australia (PESA)

... of azimuths. Care must be taken in areas of structural dip to ensure that variations in timing across the gather are not d ue to st ructure. Figu re 3...

Interpreting Borehole Image Data from Deep-Marine Environments

Adriaan A. Bal, Kenrick A. A. van Noord, Gde P. Wirawan

Indonesian Petroleum Association

... of dips include dip and dip-azimuth tadpole versus depth plots, stereoplots, and dip-vector plots. Dip information together with image fabric and bed...

Slip sliding away: Enigma of large sandy blocks within a gas-bearing mass transport deposit, offshore northwestern Greenland

David R. Cox, Mads Huuse, Andrew M. W. Newton, Paul Gannon, and John Clayburn

AAPG Bulletin

... velocity of 2.0 km/s [6562 ft/s]) and a vertical resolution of 18 m (59 ft). Prestack depth migration was completed using a Kirchhoff algorithm down...

Abstract: Efficient Broadband Marine Acquisition and Processing for Improved Resolution and Deep Imaging; #90172 (2014)

Ed Kragh, Tim Brice, Tony Curtis, Josef Heim, Deepak Kapadia, Morten Svendsen

Search and Discovery.com

... streamers. The depth of these deeper streamers is optimized for the low frequencies such that the combined overall bandwidth is enhanced. Because the deep...

Evolution of Sedimentary Basins from the Standpoint of Petroleum Origin and Accumulation - A Three-Dimensional Quantitative Basin Study

D. H. Welte, M. A. Yükler

Special Publications of SEPM

... petroleum accumulations and geophysical methods have been developed and improved to help locate these structures. However, the timing and the amount...

Chapter Nine: Inversion and Interpretation of Impedance Data

Rebecca B. Latimer

AAPG Special Volumes

... of the correlation difficulties arise in the time-to-depth conversion of the seismic data cube or the depth-to-time conversion of the well data. Velocity data volumes...

Performance of elastic FWI for different wrapping angles of helical fiber in seafloor-deployed DAS

Shogo Masaya, Masanori Tani

International Meeting for Applied Geoscience and Energy (IMAGE)

...) of HWF in DAS acquisition at a well. However, these previous studies do not discuss the influence of HWF on velocity modeling. A couple of studies (Pan...

Geological History of the Western Barrow Sub-Basin: Implications for Hydrocarbon Entrapment at Woollybutt and Surrounding Oil and Gas Fields

D. J. Hearty, G. K. Ellis, K. A. Webster

Petroleum Exploration Society of Australia (PESA)

...). The seismic events that were mapped in the study area are listed in Table 1 and Figure 2. North 1 581 Depth Conversion Regional interval velocity...

Applications of Shallow High-Resolution Seismic Reflection to Environmental Problems

Richard D. Miller, William E. Doll, Carlene Merey, William E. Black

Environmental Geosciences (DEG)

... than suggested by Fresnel zone theory. Uncompensated near-surface velocity variations could result in inaccurate seismic interpretations. Shallow seismic...

Seismic and geological constraints on the structure and hydrocarbon potential of the northern Whitehorse trough, Yukon, Canada

Don White, Maurice Colpron, Grant Buffett

CSPG Bulletin

... conversion of the seismic images was done using a velocity of 5000 m/s which is representative of stacking velocites in the upper 3 s. This velocity, and thus...

How distinctive are flood-triggered turbidity currents?

Catharina J. Heerema, Matthieu J.B. Cartigny, Ricardo Silva Jacinto, Stephen M. Simmons, Ronan Apprioual, Peter J. Talling

Journal of Sedimentary Research (SEPM)

... to identify river-flood-triggered turbidite deposits, which are largely based on the assumption that a characteristic velocity structure of the flood...

Middle Cretaceous Paleogeography of Utah

Michael H. Gardner, Timothy A. Cross

Rocky Mountain Section (SEPM)

...-term cycles across Utah. Four stratigraphic cross sections along depositional-dip illustrate stacking patterns of shoreface sandstone in short-term...

A New Discovery in The Limau Graben Trend: Air Benakat Formation Shallow Gas

Wahyu Dwijo Santoso, Raddy Adiarsa, Yona Akbar, Dimas Pramuditho, M. Taslim

Indonesian Petroleum Association

... was carried out prior to shear velocity log estimation to ensure the two remaining elastic parameters besides shear velocity has no flaw in term of errors...

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...

Assessing the Radiocarbon Landscape Reservoir Effect of Gastropods from Central Texas to Increase the Accuracy and the Precision of Radiocarbon Dating of Past River Systems

Search and Discovery.com

Abstract: Grayson Field, Jurassic Smackover Reservoir, Columbia County, AR: A Case Study Using Leading Edge Reservoir Characterization Seismic Processing of 3D Seismic Data

Kevin B. Hill and William R. Meaney

Houston Geological Society Bulletin

... on a four-way dip closure defined by three 2D seismic lines. Investors were hoping to find a maximum of 100 feet of pay. After the discovery of 158 feet...

Abstract: Near-surface Issues in TTI Wave Equation Migration from Topography; #90171 (2013)

Chuck Ursenbach, Richard A. Bale, and Samuel H. Gray

Search and Discovery.com

... = 0 component of the wavefield, so the correct static shift is obtained, while the errors in non-zero kh components typically have negligible effect...

Modeling secondary oil migration with core-scale data: Viking Formation, Alberta basin

Elise B. Bekele, Mark A. Person, Benjamin J. Rostron, Randal Barnes

AAPG Bulletin

...-a geochemical and thermal maturation study: Geological Survey of Canada Bulletin 262, p. 11-22. Hayba, D. O., and C. M. Bethke, 1995, Timing and velocity...

Complex mountainous stepwise tomographic inversion modeling method

Haili Wang, Yongguo Wu, Weibo Li, Zhihui Yan, Li He, Baohua Yu

International Meeting for Applied Geoscience and Energy (IMAGE)

... constraint + full offset" is used to obtain the deep velocity information under LVL. It can provide a high-accuracy velocity field for pre-stack depth...

Research and application of shallow surface wave prediction attenuation in dual complex mountainous exploration areas

Xinyue Song, Zaijin Zhang, Yi Bao, Cheng Wang, Zhonghua Zhao, Yangyang Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... solution to near surface velocity inversion. It paves the way for precise velocity model building in the full depth domain, eventually improving...

New Insights into the Deep-Water Otway Basin - Part 1. Integrated Depth Imaging Workflows Unravelling the Subsurface

Si Ying Lee, Bee Jik Lim, Arwindran Anantan, Alexander Karvelas

Australian Petroleum Production & Exploration Association (APPEA) Journal

... velocity variations of the major geological units whilst maintaining the depth consistency at the intersection location of all the 2D lines in both dip...

Modern Marine 3D Seismic Acquisition - Technical Considerations

Chris Walker

Petroleum Exploration Society of Australia (PESA)

... that contribute to each 3D CMP bin. • For a given target depth and average subsurface velocity the computed travel times are 3D NMO (dip/azimuth NMO...

ABSTRACT: Sensitivity Considerations in Building Velocity Models for the Nile Delta’s Messinian, by El-Bassiony, Ahmed; Eid, Mamdouh; Walker, Chris; Caselitz, Bertrand; ElAmir, Ashraf; Hemdan, Mahmoud; #90141 (2012)

Search and Discovery.com

Time-Domain High-Resolution Radon Transform (Geophysics Paper 4)

Michel Schonewille, Peter Aaron, Carl Notfors

Geological Society of Malaysia (GSM)

... quadrant. After zeroing the 1st quadrant the data was inverse transformed. However, decomposing hyperbolic events as dip-components, which is in effect...

Observations and Inferences for Overpressure Development under Salt Sheets in the Gulf of Mexico

J. J. O'Brien , I. Lerche , Z. Yu

GCAGS Transactions

..., and the dip of the salt. By comparing subsalt pressures at the same depth, the first effect can be eliminated. At a given depth, there is an asymmetry...