Prediction and removal of internal multiples using an improved CFP approach

Zhiheng Jiang, Yongqiang Yao, Pengzhi Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

...Prediction and removal of internal multiples using an improved CFP approach Zhiheng Jiang, Yongqiang Yao, Pengzhi Zhang Prediction and removal...

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 Discovery.com

...-wave primaries and interbed multiples but not converted shear wave or surface multiples. The resulting data was then run through a Kirchhoff PSDM...

Acquisition geometry design based on full-wavefield migration

Billy A. Revelo Obando, Gerrit Blacquire

International Meeting for Applied Geoscience and Energy (IMAGE)

... for this purpose. Due to the geometry of the model, the internal multiples generated between the lower horizontal reflector and the salt overhang can...

Improving subsalt imaging using mode-converted waves and volumetric coherent noise attenuation in southern Gulf of Mexico

Riaz Alai, Nik Nur Halim C. Soh, M Shah B. Sulaiman, M. Iqbal Supardy, Kien Kok Lee, Sandeep Kumar, Syazwani Bt Suhairi, Christian Brinzer, Frederico Xavier de Melo, Hongyan Li, Iestyn Williams, Hugo Enrique Munoz Cuenca, Nolan Brand, Kate Glaccum, George Zhao, Saeeda Hydal, Khaled Abdelaziz, Emmi Sanchez Vargas

International Meeting for Applied Geoscience and Energy (IMAGE)

... (conflicting dip internal multiples and mode-conversion) and demigrationremigration using mode-conversion velocity experiments (localized subsalt mode...

Chapter 4: Synthetic Seismograms and Their Uses

Tom Wittick

North Texas Geological Society

... reflector at a specific depth. In most cases the difference in acoustic velocity between rocks is the dominant factor in determining the reflection...

Synthetic Seismograms and Their Uses

Abilene Geological Society

... depth. In most cases the difference in acoustic velocity between rocks is the dominant factor in determining the reflection coefficient and the density...

Abstract: Multiple Reflections and Head Waves in Gulf of Suez, by S. N. Domenico; #90963 (1978).

Search and Discovery.com

The Marchenko internal multiple elimination based on focal transform and its application on seismic data reconstruction

Zhen Liao, Xiaohong Chen, Wenjin Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... internal multiples, necessitating solely a background velocity model or the original data. This method involves conducting correlation and convolution...

ABSTRACT: Advances in Interbed Multiples Prediction and Attenuation: Case Study from Onshore Kuwait, by Al-Deen, Khalid M. Shams; El-Emam, Adel, Zahran, Wael A.; #90141 (2012)

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

A. N. Reddy

Search and Discovery.com

... of surface, water layer and interbed multiples. • Build a velocity model which honours the overburden and accurately delineates the high velocity basalt...

Vertical Seismic Profiling in Hydrocarbon Exploration and Reservoir Development

Bob A. Hardage

Circum Pacific Council Publications

... that the time delays T and T between the downgoing multiples are shown to be the same as the time delays T' and T ' between the upgoing multiples...

Broadband Seismic Technology and Beyond: Part VIII: BroadSeis in Exploration

Lasse Amundsen, Martin Landrø, Vetle Vinje, Jo Firth

GEO ExPro Magazine

... images of small features as well as clear differentiation between different sedimentary packages. The high frequencies enable detailed velocity modeling...

Discrimination of Depositional Environments Using Settling Tube Data

Asahiko Taira , Peter A. Scholle

Journal of Sedimentary Research (SEPM)

... quite similar in settling-velocity distribution and that discrimination between them is relatively poor. Therefore, they are treated as a single group...

AAPG Memoir 76, Chapter 19: The Future of Pressure Prediction Using Geophysical Methods

Alan R. Huffman

AAPG Special Volumes

...-STRESS AND LOADING-PATH DEPENDENCY OF PRESSURE The functional relationship between pore pressure and velocity has been generally recognized...

Abstract: Seismic Reservoir Characterization and Discrimination over 'Aib-EX' Oil Field, Niger Delta; #90255 (2017)

Sunday Olotu, Ibukun Olorunniwo, Olatunbosun Alao, Adekunle Adepelumi

Search and Discovery.com

...Abstract: Seismic Reservoir Characterization and Discrimination over 'Aib-EX' Oil Field, Niger Delta; #90255 (2017) Sunday Olotu, Ibukun Olorunniwo...

Improved subsalt imaging in Brazil Campos basin Cascaded application of hybrid interbed demultiple, P- and S-salt velocity joint migration, and subsalt converted wave suppression

Riaz Alai, Faqi Liu, Darrell Armentrout, David Brookes, Terry Johnson, Milos Cvetkovic, Gundogan Coskun, Shah Sulaiman, Kien Kok Lee, Afiq Mokhtar, Christopher Lee Slind, Hafizan Wahab, Wan Ching Low, Ali Andrea B. Hashim

International Meeting for Applied Geoscience and Energy (IMAGE)

... the hybrid interbed demultiple scheme. In Figure 1a [right], the input stack is shown with large number of interbed multiples generated between all...

Large-scale Marchenko imaging with distance-aware matrix reordering, tile low-rank compression, and mixed-precision computations

Matteo Ravasi, Yuxi Hong, Hatem Ltaief, David Keyes, David Vargas

International Meeting for Applied Geoscience and Energy (IMAGE)

...)), as well as in more recently developed wave-equation based methods such as Estimation of Primaries by Sparse Inversion (EPSI – van Groenestijn...

Abstract: Red Sea 2D Transition Zone Reprocessing Case Study; #90254 (2016)

Sergey Kishchik

Search and Discovery.com

...” and sea bottom multiples. It was successfully achieved by applications of surface related multiples attenuation (SRME) and “velocity dependent...

How to Correct Seismic Data to Improve Seismic Impedance Logs: ABSTRACT

E. Robein, J. M. Komatitsch

AAPG Bulletin

... and velocity effects, two global parameters may disturb the comparison between acoustic logs recorded in a borehole and those derived from seismic data...

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user

Search and Discovery.com

.... The study suggests that pure-mode and converted-wave multiples can be significant recorded events in the presence of high velocity rocks with a wedge...

-- no title --

user

Search and Discovery.com

.... The study suggests that pure-mode and converted-wave multiples can be significant recorded events in the presence of high velocity rocks with a wedge...

Challenging preconceptions in complex carbonate imaging: Using shear waves and electromagnetic data for improved subsurface understanding

Riaz Alai, Ahmad Riza Ghazali, Lucy MacGregor, Faizan Akasyah Ghazali, Edysuzaily Kamarudin, Aidel Haikal Azmi, Garry Malo-Paul, Sandeep Kumar, Brendon Negenman, Oscar Augusto Barrios, Ge Zhan, Mitch Preston

International Meeting for Applied Geoscience and Energy (IMAGE)

... P-wave velocity model, 3C Vertical Incidence VSP (VIVSP) and 3D DAS VSP data were acquired in a deviated well. From the acquired VSP data, strong...

Refraction multiple attenuation by pattern-based machine learning with a case study

Chunming Wang, Xiaohong Chen, Yongsheng Wang, Christof Stork, Sissy Theisen, Seann Day, Junru Jiao, Grace Yan, Xianhuai Zhu

International Meeting for Applied Geoscience and Energy (IMAGE)

... as orders increase. Figure 7 depicts attenuation of S/Converted wave refraction multiples. Since S-wave has lower velocity, the multiples happen at later...

Acquisition, Processing, and Analysis of Shallow, High-Resolution Seismic Data from the Outer Continental Shelf and Upper Slope, Offshore Louisiana

Susan E. Nissen , Janet M. Combes , Anthony G. Nekut

Journal of Sedimentary Research (SEPM)

... differences between the primary and the multiple were not practicable. Long prediction-length deconvolution was successful in suppressing sea-floor multiples...

Inexact alternating direction method of multipliers (InADMM) for the acceleration of l2Šl1 inverse problems

Joaquín A. Acedo, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... Geologists Algorithm 1 InADMM u0 , inversion, the primaries and multiples map to different regions in τ − q, then the multiples can be estimated...