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)

... in Brazil and major subsalt plays in the Gulf of Mexico and West Africa. In addition to the attenuation of interbed multiples and converted waves, we...

Aiding self-supervised coherent noise suppression by the introduction of signal segmentation using blind-spot networks

Sixiu Liu, Claire Birnie, Tariq Alkhalifah, Andrey Bakulin

International Meeting for Applied Geoscience and Energy (IMAGE)

... a low-dimensional representation of the seismic data features that can be exploited for coherent noise attenuation. Examples of such methods include...

Distributed acoustic sensing of long subsea tie-backs

Glenn A. Wilson, Brian C. Seabrook, Sigurd Moe, Kwang Suh, Mikko Jaaskelainen, Andreas Ellmauthaler, Jeff Bush, James Dupree

International Meeting for Applied Geoscience and Energy (IMAGE)

... and obviate the need for any marinized amplification. DRA effectively eliminates the attenuation of the transmission fiber spanning the DAS interrogator...

Ultrasonics

W. P. Mason

Tulsa Geological Society

.... The attenuation and velocity of longitudinal and shear waves are measured for a given material and attenuation peaks and dispersion of velocity...

Abstract: Shallow Geohazards on the Continental Margin

Robert A. Young

Houston Geological Society Bulletin

...-scan sonars used in shallow water are insufficient in deep water because of severe beam spreading and signal attenuation. A new generation of deep-towed...

The Composition of Seismic Reflections: Abstract

J. P. Woods

Tulsa Geological Society

... with no shear waves, surface waves or divergence of energy. The attenuation of the sound waves differs from the attenuation of seismic waves in the earth...

Q-compensated least-squares reverse time migration by considering velocity and Q perturbations

Jinli Li, Yingming Qu, Chongpeng Huang, Zhenchun Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... absorption and attenuation effect on seismic waves. Q attenuation leads to weak amplitude and misplacement of reflectors in images. Numerous acoustic...

Seismic data denoising by combining self-supervised and supervised learning

Yen Sun, Paul Williamson

International Meeting for Applied Geoscience and Energy (IMAGE)

... for each dataset. Conventional ground-roll noise attenuation methods involving domain transform or decomposition can be timeconsuming. Recent studies have...

Enhancing Seismic Interpretation Using Crosswell Seismic: Case Study From Indonesia

Tri Handayani, Zeppy Irwanzah, M. Taslim, Sanjeev Dogra, Ajay Nalonnil, Bruce Marion, Pedro Carrillo Reyes

Indonesian Petroleum Association

... can be obtained from direct wave and reflection processing respectively. In difficult seismic areas, such as the project area, with high attenuation...

Seismic Processing Strategies in the Deep Water Kutai Basin … Gendalo Hub Pre-Stack Depth Migration

Xiuyuan Li, Harmit Singh, Joe Zhou, Graham Hodgkiss, Neil Young, Helmut Hsiao

Indonesian Petroleum Association

... to be used for their attenuation, a strategy for their removal, and precise parameterization. Significant variations in the depth of the water-layer...

Viscoacoustic wave propagation: Spectral-element simulations with a novel GSLS-type wave equation

Yu Chen, Bin He, Hejun Zhu

International Meeting for Applied Geoscience and Energy (IMAGE)

... the Earth (Aki and Richards, 2002). Attenuation refers to the decay of wave amplitudes with distances; dispersion refers to the variations of seismic...

Advances in seismic acquisition and processing technologies steered the success of exploration and development in Kuwait

Adel El-Emam

International Meeting for Applied Geoscience and Energy (IMAGE)

... attenuation contribute significantly towards obtaining a broadband seismic image with improved reservoir properties. Figure 3 – (top) Conventional...

Abstract: Influence of Shallow Geology on Volatile Organic Chemical Attenuation from Groundwater to Deep Soil Gas

Lila Beckley P.G., Danielle Bailey P.G.

Houston Geological Society Bulletin

...Abstract: Influence of Shallow Geology on Volatile Organic Chemical Attenuation from Groundwater to Deep Soil Gas Lila Beckley P.G., Danielle Bailey...

Thermob Arometric Conditions of Appearance of the Main Phase of Oil Formation in the Paleozoic Sediments of the Baltic Synclize

L. A. Pol’ster, Yu. A. Viskovskiy, Yu. F. Sheremet’yev

Petroleum Geology: A Digest of Russian Literature

... of processes of oil formation; 2-main zone of oil formation; 3-zone of attenuation of processes of oil formation and intensification of gas formation...

Abstract: Compacted Clay Liner in Sanitary Landfill Sites

Wan Zuhairi Wan Yaacob

Geological Society of Malaysia (GSM)

.... Meanwhile, the chemical properties of soils are capable of controlling the attenuation of contaminants via various chemical processes namely ionic...

Abstract: Methods in Estimating Visco-Elastic Properties for Gas Cloud Imaging : A Multicomponent Seismic and Rock Properties Analysis (Geophysics Poster 6)

Ang Chin Tee, M Hafizal Mad Zahir

Geological Society of Malaysia (GSM)

... quality due to higher attenuation of P-waves, wavefront distortion which caused by low velocity distribution within the gas bodies and transmission...

Remediation Exit Strategy, Defining When To Turn Off An Engineered System

Search and Discovery.com

Abstract: Transition from Subduction to Strike-Slip in the Southeast Caribbean: Effects on Lithospheric Structures and Overlying Basin Evolution; #90238 (2015)

Tricia Alvarez, Paul Mann, Lesli Wood, Carlos Alberto Vargas, and Joan Latchman

Search and Discovery.com

... an earthquake dataset containing >700 events recorded by the eastern Caribbean regional seismograph network to build travel-time and attenuation tomography...

Weathering Pits in Jurassic Sandstones: Cosmogenic Exposure Age Dating of Geomorphic Surfaces in Southern Utah

Marjorie A. Chan, John Gosse, Thure E. Cerling, Dennis Netoff

Utah Geological Association

... exposure duration); ρ is the bulk density of the eroding rock; t is the exposure duration (yr); and Λspall and Λμ are the attenuation lengths (g/cm2...

Geophysical Techniques for Evaluating the Internal Structure of Cheniers, Southwestern Louisiana

Robbie R. Zenero , David L. Seng , Mark R. Byrnes , Randolph A. McBride

GCAGS Transactions

... that affect the subsurface attenuation and propagation of radar waves. At frequencies used by this radar technique the magnetic permeability of most materials...

A New Coupled Geomechanical-Chemical Model for CO2 Foam Flooding and Storage in Tight Reservoir

Mingyu Cai, Yuliang Su, Derek Elsworth, Yongmao Hao, Xiaogang Gao

Unconventional Resources Technology Conference (URTEC)

... tight oil recovery. In this study, we construct an anisotropic dual-porosity model involving dynamic foam generation and attenuation, and the initial...

The Determination of Suspended Sediment Concentration in a Macrotidal System Using Landsat Data

C. L. Amos, T. T. Alfoldi

Journal of Sedimentary Research (SEPM)

... 162------------------------ of atmospheric attenuation and path radiance. Yarger et al. (1973), working on some Kansas reservoirs, tested SSC...

Remnant of the Late Holocene sand beach reveals ancient settlement-related sea level change from western Thailand

Parisa Nimnate, Sukanya Suriyan, Sasiyanan Wongcharoen

Geological Society of Malaysia (GSM)

... table, including the calculated cosmic ray dose rate (Bell, 1979; Prescott & Hutton, 1994). The obtained AD value was corrected based on attenuation...

Storm-dominated Sedimentation on the Inner Shelf of the Canadian Beaufort Sea

Philip R. Hill , Odette C. Nadeau

Journal of Sedimentary Research (SEPM)

... is interpreted to result from attenuation of wave energy in the resuspension zone. The amount of resuspension decreases shoreward, resulting in thinner...

Depths of Modern Coastal Sand Clinoforms

Neil C. Mitchell, Gerhard Masselink, John M. Huthnance, Luis M. Fernandez-Salas, Francisco J. Lobo

Journal of Sedimentary Research (SEPM)

... properties at the clinoforms where the shelf bathymetry gradient is similarly steep (producing little attenuation of waves through friction...