-- no title --

Ehsan, Athar

Search and Discovery.com

... requires very high-resolution technique. Conventional velocity model building techniques such as ray-based tomography and migration velocity analysis outputs...

Abstract: Turning-Ray Tomography and Tomostatics; #90224 (2015)

Babatunde Arenrin, Gary Margrave, and John Bancroft

Search and Discovery.com

... such as the case of a hidden layer. The velocity model from turning-ray tomography can be used for static correction, starting models for Full Waveform Inversion...

Abstract: Benefits and Limitations of 3-D Poststack Depth Imaging in Complex Geological Settings, by J. Cabrera; #90951 (1996).

Search and Discovery.com

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)

... present a case history of applying TTI RTM (Reverse Time Migration) for imaging in a deep-water area offshore Malaysia. Use of RTM is not new...

Can Dispersive Pressure Cause Inverse Grading in Grain Flows?: DISCUSSION

J.P. Le Roux

Journal of Sedimentary Research (SEPM)

... bed is in constant equilibrium, which is probably not the case. In this discussion a modified process is proposed that accounts for the bipartite...

ABSTRACT: Enhanced Structural Imaging Using TTI Reverse Time Migration - A Case Study over the Dhok Sultan Block, by Firasat Shah, Syed; Sajjad, Musharraf; Zubay, Erick

Search and Discovery.com

A case study of TORT migration imaging of strike-slip faults in Mahu area, Junggar Basin

Hanqing Huang, Daoshan Li, Wei Chai, Hongdan Gu, Yongchang Lv, Yong Wang, Lijuan Huang, WenShan Luo

International Meeting for Applied Geoscience and Energy (IMAGE)

...A case study of TORT migration imaging of strike-slip faults in Mahu area, Junggar Basin Hanqing Huang, Daoshan Li, Wei Chai, Hongdan Gu, Yongchang...

Application of Full Waveform Inversion to Resolve an Eroded Shallow Carbonate Platform, North Madura, East Java, Indonesia

David Cavalin, Nurrul Ismail, Tom Paten, Kola Agbebi, Dave Lim

Indonesian Petroleum Association

... of an accurate velocity model in the shallow section. If the velocity model used during the final migration does not acknowledge these velocity anomalies...

Overview of Exploration Geophysics--Recent Breakthroughs and Challenging New Problems

B. S. Flowers

AAPG Bulletin

... structural definition. Another velocity-structure problem, also a special case, has been encountered in the Gulf Coast province. Here the problem is one...

Velocity Anomalies and Out-of-Plane Reflections in Barnicarndy 1, Canning Basin

Y. Zhan

Australian Petroleum Production & Exploration Association (APPEA) Journal

...-existing wells, such as 60 km to Frankenstein 1, 15 km to Kidson 1 and 75 km to Patience 2, the interval velocity model of depth migration derived...

Abstract: ENHANCED STRUCTURAL IMAGING USING TTI REVERSE TIME MIGRATION A CASE STUDY OVER THE DHOK SULTAN BLOCK; #90138 (2012)

Syed Firasat Shah, Musharraf Sajjad, Erick Zubay

Search and Discovery.com

...Abstract: ENHANCED STRUCTURAL IMAGING USING TTI REVERSE TIME MIGRATION A CASE STUDY OVER THE DHOK SULTAN BLOCK; #90138 (2012) Syed Firasat Shah...

Full Waveform Inversion for Complex Near-Surface Imaging Using SEG SEAM II Synthetic Model; #42322 (2018)

Ali A. Mohamed, Abdullatif A. Al-Shuhail

Search and Discovery.com

.... In this article, we tested and applied Full Waveform Inversion as a high-end technology in velocity model building and seismic wave migration for imaging complex...

Secondary Flow in Meandering Channels on Submarine Fans: Implications for Channel Morphodynamics and Architecture, #40480 (2010)

Jorge D. Abad, Octavio Sequeiros, Benoit Spinewine, Carlos Pirmez, Marcelo Garcia, Gary Parker

Search and Discovery.com

... of turbidity currents in meandering channels should be reversed compared to rivers. Were this to be the case, the planform geometry of submarine...

3.2 Basement Involved: 3.2.2 Basement Thrust and Reverse Faults: Seismic Profile: North Fork Area, Powder River Basin, Wyoming

D. S. Stone

AAPG Special Volumes

... velocity change with velocities increasing basinward. If a constant velocity is used for depth migration, a mis-tie of about 107 m (350 ft...

High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia

Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree

Indonesian Petroleum Association

... model for FWI was derived from a pre-stack time migration velocity that was converted to a depth interval velocity with smoothing applied. Figure 5...

The Use of Ground-Penetrating Radar for Characterizing Sediments Under Transient Flow Conditions

Michael B. Kowalsky, Yoram Rubin, Peter Dietrich

Special Publications of SEPM

... velocity in air is constant (~ 0.3 m/ns), that of the (slower moving) ground wave depends on the dielectric constant in the upper region of the soil...

ABSTRACT: Gulf of Suez: An Integrated G&G Study for Structural Model Definition, by Manera, Martina; Andreoletti, Clara; De Vincenzi, Luca; Sayed Adb El Fattah, Mohmoud; #90135 (2011)

Search and Discovery.com

ABSTRACT: Sub-Basalt Imaging in the Gulf of Kutch; #90118 (2011)

A. N. Reddy

Search and Discovery.com

... modelling, re-processing of the two available surveys from field tapes, velocity modelling and pre-stack depth migration using the very latest...

Optimizing Proppant Placement in Rough-Walled Rock Fractures

Min Zhang, Maša Prodanović

Unconventional Resources Technology Conference (URTEC)

... into the fracture are observed for a lighter proppant. For vertical fracture case a larger fluid injection velocity carries the proppant way deeper...

Sparse 3D seismic survey over the Olympic Dam IOCG deposit

Heather Schijns, Jared Townsend, David Haddow, Max Shawcross, Kathy Ehrig

International Meeting for Applied Geoscience and Energy (IMAGE)

... of semblance and constant velocity stacks. The 2D PSTM (pre-stack time migration) image would provide a point of comparison for the later 3D imaging...

Sumpal Fractured Basement Field, Structural Attribute Analysis and Interpretation Case Study, Workflow Management and New Insights from Pre-Stack Depth Migrated Data and Azimuthal Stacks

Yan Darmadi, John Hughes, Sugiharto Danudjaja, Rita Achdiat

Indonesian Petroleum Association

.... Anisotropic corrections were derived by calibrating each layer interval velocity to well data enabling an anisotropic migration algorithm to be employed...

General Threshold for Sediment Transport Induced by Mounds

J. Stephen Fries

Journal of Sedimentary Research (SEPM)

... experiments confirmed this threshold for sediment mounds of both fine and coarse sands. Measurements of the velocity field near sediment mounds...

Deep Pore Fluid Pressure Prediction in Challenging Areas, Malay Basin, SE Asia

Stephen O’Connor, Richard Swarbrick, Jamaal Hoesni, Richard Lahann

Indonesian Petroleum Association

.... However, where thermally-driven secondary processes create overpressure, porosity-based analysis that uses sonic (or seismically-derived velocity data...

Imaging Beneath Complex Structure

K. Larner, B. Gibson, and R. Chambers

AAPG Special Volumes

... with interval velocity known perfectly, no velocity is proper for time migrating the data here; time migration is the wrong process because it does not honor...

Abstracts: Converted Wave Processing in the EOM Domain; #90173 (2015)

Thais A. Guirigay and John B. Bancroft

Search and Discovery.com

... wave prestack migration and velocity analysis has been developed. That is based on the consideration of prestack migration by equivalent offset...