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Welcome to the new Datapages Archives

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The AAPG/Datapages Combined Publications Database

Showing 17,696 Results. Searched 200,357 documents.

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The Geophysical Aspects of Abnormal Fluid Pressures

Edward B. Reynolds, John E. May, Alf Klaveness

Houston Geological Society

... offshore Louisiana areas. The left one was derived from good reflection data with few troublesome multiples. The right velocity analysis is useless...

1971

Can tile low-rank compression live up to expectations? An application to 3D multidimensional deconvolution

Yuxi Hong, Matteo Ravasi, Hatem Ltaief, David Keyes

International Meeting for Applied Geoscience and Energy (IMAGE)

...-related effects from up/down separated wavefields (e.g., removal of free-surface multiples from ocean-bottom data). However, MDD comes with several...

2023

An integrated workflow centered around elastic FWI for complex subsalt imaging using wide-azimuth data in the southern Gulf of Mexico

Hongyan Li, Riaz Alai, Nolan Brand, Frederico Xavier de Melo, Hugo Enrique Muñoz Cuenca, Wenmiao Liu, Iestyn Williams, Saeeda Hydal, Khaled Abdelaziz, Emmi Sanchez Vargas, Nik Nur Halim C Soh, M Shah B Sulaiman, Sandeep Kumar

International Meeting for Applied Geoscience and Energy (IMAGE)

... (EFWI) was employed to improve the subsalt velocity update. With the limitation of maximum offset and azimuth, a systematic workflow was proposed...

2024

Imaging the presalt with elastic FWI using OBN data

Gabriel Brando, Benjamin Huard, Luis Cypriano

International Meeting for Applied Geoscience and Energy (IMAGE)

... region. Figure 3d shows a line view with a clear well shape captured by the 30 Hz EFWI velocity. Figure 3e shows a good match between the well path (red...

2023

Eye-Openers from Re-Processing of Oil Sands Seismic Data; #41290 (2014)

David Gray, Seann Day, and Scott Shapper

Search and Discovery.com

... the seismic gathers at these wide angles. Wide-angle noise such as multiples, converted-waves, refractions, and first-break reverberations must also...

2014

Seismic and Well Interpretation of Fluvial Clastic and Coal Packages for Stratigraphic Traps within the Patchawarra Formation, Cooper Basin

Christopher Webb

Petroleum Exploration Society of Australia (PESA)

... correlation between seismic scale reflectivity and well log data allows the interpretation of two component packages within the Patchawarra Formation...

2015

The Lofoten Islands

Alozie-Davies Okere

GEO ExPro Magazine

... discrimination between multiples and primary reflections at the affected levels. The Mesozoic fault blocks are hard to visualise and pre-stack migration...

2010

New geological insights gained from the reprocessing, imaging, and interpretation of legacy seismic datasetsOffshore Mauritania

Kranthi Garidepalli, Elisabeth Gillbard, Simon Dean, Darren Judd, Nassim Kettouche, Paul Bellingham

International Meeting for Applied Geoscience and Energy (IMAGE)

... such as MWD with multi-model subtraction help resolve complex surface multiples, a result of steep, seafloor canyons present in the area. For velocity...

2022

New Page 1

Search and Discovery.com

N/A

Deconvolution of upgoing and downgoing wavefields: A data example from the NOAKA OBN experiment

Tim Seher, Hassan Masoomzadeh, Yong Ren, Simon Baldock, Bin Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

.... If there exists a clear separation between direct arrivals and multiples, the first method is preferable because it is less sensitive to imperfections...

2022

-- no title --

user

Search and Discovery.com

... and multiples generated by a very rugose waterbottom. EnCana considered reprocessing the 3D to take advantage of the latest developments in processing...

Unknown

-- no title --

user

Search and Discovery.com

... and multiples generated by a very rugose waterbottom. EnCana considered reprocessing the 3D to take advantage of the latest developments in processing...

Unknown

Abstract: Seismic Imaging and Velocity Modelling Offshore Myanmar (Andaman Sea Basin) (Geophysics Poster 12)

Farhan Ahmed Khan, M Hakimey Hashim, Azlan Mohd Sabirin, Goh Leong Kee, Garry Malo Paul

Geological Society of Malaysia (GSM)

...Abstract: Seismic Imaging and Velocity Modelling Offshore Myanmar (Andaman Sea Basin) (Geophysics Poster 12) Farhan Ahmed Khan, M Hakimey Hashim...

2011

Advances in Geophysical Techniques for the Detection of Drilling Hazards and Their Application to Seismic Exploration

D. C. N. Pratt, Tong Pow Mun

Southeast Asia Petroleum Exploration Society (SEAPEX)

.... The separation between NMO corrected primary events and multiples is also greater at longer offsets allowing belter multiple suppression in the final...

1990

The Wedge Model Revisited; #41545 (2015)

Joanna K. Cooper, Don C. Lawton

Search and Discovery.com

... complications for migration. The study suggests that pure-mode and converted-wave multiples can be significant recorded events in the presence of high velocity...

2015

Elastic FWI imaging of a complex presalt structure using NATS data

Arthur Henrique, Luiz Felão, Sergio Barragan, Florian Jouno

International Meeting for Applied Geoscience and Energy (IMAGE)

.... (2022), elastic FWI (EFWI) narrows the gap between modeled and measured data and can provide improvement in inverted velocity models. A more accurate...

2023

SYNTHETIC SEISMOGRAMS

Search and Discovery.com

N/A

Envelope full-waveform inversion of marine seismic data

Kai Xiong, David Lumley, Wei Zhou

International Meeting for Applied Geoscience and Energy (IMAGE)

... is: how can envelope-based inversion be less dependent on initial models? Some smoothed envelope functions were proposed to get more overlap between...

2022

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