Hydrodynamic Properties and Grain-size Characteristics of Volcaniclastic Deposits on the Mid-Atlantic Ridge North of Iceland (Kolbeinsey Ridge)

Reinhard Oehmig, Hans-Joachim Wallrabe-Adams

Journal of Sedimentary Research (SEPM)

.... Observations concerning different current expositions of central ridge sediments, combined with the parameters of settling velocity distribution, grain...

The Role of Statics Application in the Imaging of Sub-Surface in Fold Belt Areas, #40746 (2011)

Arun Kumar Arya, Bharat Chandra Joshi, Narinder Pal Singh,

Search and Discovery.com

... to seismic data compensate for velocity and thickness variations within the weathered zone. An uncompensated weathered layer thickness can distort...

The Wave Equation Applied to Migration

D. Loewenthal, L. Lu, R. Roberson, J. Sherwood

Southeast Asia Petroleum Exploration Society (SEAPEX)

... alternative migration techniques. Particular advantages are 1) the possibility of using a detailed velocity model for the migration and 2) the preservation...

Statistical depth imaging through complex cluttered near-surface with path summation

Andrey Bakulin, Ilya Silvestrov, Maxim Protasov

International Meeting for Applied Geoscience and Energy (IMAGE)

... various realizations of the cluttered media velocity models. We also perform a feasibility study of statistical imaging with path summation...

Poro-acoustoelasticity FD simulation of elastic wave propagation in prestressed porous media

Haidi Yang, Li-yun Fu

International Meeting for Applied Geoscience and Energy (IMAGE)

... to solve a first-order velocity-stress formulation of poro-acoustoelasticity equations for elastic wave propagation in prestressed porous media. We...

DMO and NMO as Applied in Seismic Data Processing

Jiunnyih Chen

Geological Society of Malaysia (GSM)

... in this paper. The reason for doing this is not only to simplfy the process and to save computer time, but also to search for more accurate velocity...

Characterization and simulation of transverse noise waves of a multisensor solid streamer

Viktor Smirnov, A. Sourice, J. Ribette, J. Mars, P. Herrmann

International Meeting for Applied Geoscience and Energy (IMAGE)

... characterization of these waves is proposed. Reviewing the classical model of transverse wave propagation, a new model of their velocity is obtained. This new...

Pushing the boundary of WAZ streamer data for subsalt imaging: A case study in deepwater Mexico Campeche

Yi Chen, Kendra Pyke, Juan Wang, Jasmeen Moubarak, Earl Manning, Jessica Kopp, Rongzhang Chen, Chang Chen, Ravi Kumar, Minshen Wang, Sabaresan Mothi

International Meeting for Applied Geoscience and Energy (IMAGE)

... is at the confluence of multiple structural domains, including a complex and extensive salt canopy, creating significant challenges for velocity model building...

Investigation of DMO Algorithms during Test-Line Processing: Some Recommendations

Ng Tong San, Mohd. Hashim Abas, Leong Lap Sau

Geological Society of Malaysia (GSM)

... and conflicting dips. Performed correctly, velocity analysis after DMO is supposedly independent of dips and thus would allow an easier decision...

Santos Vision: Innovative Seismic Data Processing in a Super Giant Oil Basin

Hermann Lebit, Sriram Arasanipalai, Jeff Tilton, Pascal Ollagnon, PGS

GEO ExPro Magazine

... critical observations impacting the understanding of the petroleum system and salt displacement in the Santos Basin. The velocity model building adopts...

Shallow Crustal Structure of the Solomon Islands Intra-Arc Basins from Sonobuoy Seismic Studies

A. K. Cooper, T. R. Bruns, R. A. Wood

Circum Pacific Council Publications

... and younger arcs of the double Solomon Islands chain. A distinct velocity discontinuity separates the upper and lower parts of the section in these basins...

Sand Particle Movement on Migrating Combined-Flow Ripples

Miwa Yokokawa , Fujio Masuda , Noritaka Endo

Journal of Sedimentary Research (SEPM)

... particles to deposit, and determine whether the ripple profiles are rounded or sharp. A lower relative oscillatory flow velocity yields smaller...

Chapter 7: Estimating the Thickness of Thin Beds

Tom Wittick

North Texas Geological Society

... with higher acoustic impedance than the host rock and those with lower acoustic impedance than the host rock. Since velocity is normally the dominant...

Discussing Demigration Uncertainties Applied to Active Focused Seismic Monitoring

Baptiste Penot, Bruce Webb, Michele Buia, Gianluca Dell’Elce

Carbon Capture, Utilization and Storage (CCUS)

... positions through a sensitivity analysis on velocity models, new crucial considerations regarding (de-)migration uncertainties applied to focused seismic...

How Sealed Is a Seal? - High Resolution Seal Integrity Evaluation Using 3D Seismic Data

Gary Yu

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... volume from seismic velocity field. This pressure model is There are many causes for abnormal pressure and failure to consider all factors may produce...

Estimating the Thickness of Thin Beds

Abilene Geological Society

... the host rock and those with lower acoustic impedance than the host rock. Since velocity is normally the dominant component of the acoustic impedance...

High-resolution passive surface wave tomography using natural and anthropogenic noise sources in a mineral exploration context

Daniela Teodor, Charles Beard, Laura Pinzon-Rincon, Aurlien Mordret, Franois Lavou, Sophie Beaupretre, Dan Hollis, John McBride, Pierre Bou, Florent Brenguier

International Meeting for Applied Geoscience and Energy (IMAGE)

... dispersion curves representative for limited sectors of the investigated area. We invert the average dispersion curves to S-wave velocity models using...

Assessing FWI imagings potential to tackle illumination issues and internal multiples in the Brazilian presalt

Cyril Dolymnyj, Filipe Rudrigues, Amanda Porto, Leandro Galves, Asdrubal Ovalles

International Meeting for Applied Geoscience and Energy (IMAGE)

... on initial velocity models. These limitations, coupled with the complexity of the overburden, resulted in an image with exploratory uncertainties during...

Wave equation traveltime Kirchhoff with real data applications

Hu Jin, Vladimir Bashkardin, Petr Jilek, Chandan Kumar, Han Liu, John Etgen, Madhav Vyas, Ganyuan Xia

International Meeting for Applied Geoscience and Energy (IMAGE)

... high-resolution models. However, migration gathers are still needed for verifying the quality of the velocity model and for performing post-migration...

3D3C seismic exploration for tight sand reservoirs: Case study in western China

Wang QinGeng, Hu Shanzheng, Zhao Rongrong, Xie Wanxue, Zhou Ming, Ren Cong, Jing Longjiang, Luo Ji

International Meeting for Applied Geoscience and Energy (IMAGE)

... medium, the precise velocity models (VC, γ0, γeff) and anisotropic parameter model (χeff) were precisely established. An obvious progress...

A method for assessing earth model uncertainty in the Taranaki Basin, New Zealand

Edward Lewis, Dennis van der Burg, Tony Martin, Lorenzo Russo, Tony Bell

Petroleum Exploration Society of Australia (PESA)

... and limited legacy data, reservoir evaluation is often based on the interpretation of one seismic image. Building a suitable velocity model followed...

Scholte waves from active and passive SB-DAS recordings and their relevance for CCUS: Synthetic and real examples from the North Sea

Simone Re, Ran Bachrach, Ali Sayed, Dmitri Skorinski, Massimo Clementi

International Meeting for Applied Geoscience and Energy (IMAGE)

..., compressional velocity, shear velocity and density is depicted in Figure 1a, 1b, and 1c, respectively. We assume a water depth of 60 m and we use the depth...

Elastic full-waveform inversion at regional scale for the northern Gulf of Mexico

Yao Yu, Anastasia Pavlovskaya, Kim Shoemaker, Hongyan Li, Jennifer Qin, David Derharoutian Jr., John Law, Zhao Ge, Ruth Hammans, Vivian Robertson, Kate Glaccum

International Meeting for Applied Geoscience and Energy (IMAGE)

... been demonstrated to update legacy velocity models to represent salt basin structures more accurately. Imaging the base Louann and complex salt and weld...

Compensating for Seismic Absorption for Orthogonal Shooting Field Data: A Case Study on NW Tunu Area, Indonesia

Doddy Iqbal Biramandita, Vishal Kumar, Wayne Zanussi, Jacques Bonnafe, Natalia Anggriani, Cepi M. Adam, Didiek Bhudy Prabowo

Indonesian Petroleum Association

... caused by the absorption. The process involves detailed velocity modeling and fine grid Q-model with resultant computationally intensive processing...

Integration of Magnetotelluric, Gravity and Seismic Data for Sub-Volcanic Imaging

Jeremy Gohitua MacArthur, Muhammad Fikri Putra, Nuha Malihati, Husnia Nur Annisa

Indonesian Petroleum Association

... information associated with wave velocity on the earth medium, while magnetotelluric and gravity data contain resistivity and density data beneath...