A method of attenuating bubble effect based on frequency domain filter

Yifei Xiao, Jianguo Song

International Meeting for Applied Geoscience and Energy (IMAGE)

... to quantify and remove multiples especially those associated with a surface water layer. The ratio (r) between the amplitude of the second peak...

Recording and Processing Procedures for Multi-channel Seismic-Reflection Data Collected in the Western Ross Sea, Antarctica

S. V. Dadisman, H. F. Ryan, D. M. Mann

Circum Pacific Council Publications

... of sea¬ floor multiples and enhancement of deep reflection events. Velocity analysis was extremely difficult owing to severe water bottom multiples...

Applications of elastic RTM on land data

Min Zhou, Changhua Zhang, Zheng Meng, Bin Yu, Mingqiu Liu, Yequan Chen, Dajian Jiang

International Meeting for Applied Geoscience and Energy (IMAGE)

... examples. With only single component data, the elastic RTM can improve migration images for the structures with large velocity contrast and/or the high...

2.3 Detached Sediments in Extensional Provinces: 2.3.2 Salt Tectonics: Piercement Salt Dome--Upper Continental Slope

J. B. Wanslow

AAPG Special Volumes

... on the seismic sections, no vertical exaggeration is present on the cross section (i.e. the horizontal and vertical scales are the same). The velocity...

How distinctive are flood-triggered turbidity currents?

Catharina J. Heerema, Matthieu J.B. Cartigny, Ricardo Silva Jacinto, Stephen M. Simmons, Ronan Apprioual, Peter J. Talling

Journal of Sedimentary Research (SEPM)

... turbidity currents in unprecedented detail. We use these measurements to test the link between river floods and velocity structure of the turbidity...

Revisiting the Brazilian Equatorial Margin with FWI and its impact on interpretation in an exploratory frontier

Diego Costa, Edmarley Ramos, Giuseppe Loconte, Filipe Rudrigues, Olivier Brachet

International Meeting for Applied Geoscience and Energy (IMAGE)

... believe that TLFWI’s ability to capture the subtle lateral velocity variations between the channel sand facies and contrasting enveloping shale facies...

Imaging of multiwell and multifiber walkaway DAS-VSP datasets in a CCUS demonstration project onshore Japan

Yuji Yamada, Shotaro Nakayama, Takuji Mouri, Manish Lal Khaitan, Philip Armstrong, Olga Podgornova

International Meeting for Applied Geoscience and Energy (IMAGE)

... of Petroleum Geologists Muti-well and multi-fiber walkaway DAS-VSP data processing between the resultant velocity models and well logs was confirmed...

Abstract: Simple Wavefield Modelling to Evaluate the Low Frequency Artifacts in Reverse-Time Migration; #90224 (2015)

John C. Bancroft

Search and Discovery.com

.... It could be the same as that in Figure 2, but the data in that figure started with a defined velocity structure and included all multiples. In real...

Broadband Seismic Technology and Beyond: Part IX: BroadSeis in Production

Lasse Amundsen, Martin Landrø, Vetle Vinje, Jo Firth

GEO ExPro Magazine

... demonstrates spectacular correlation between the velocity after FWI and the migrated image (Mothi, 2013). The success of the initial IBALT study has led...

Quantification of pore structure and its effect on sonic velocity and permeability in carbonates

Ralf J. Weger, Gregor P. Eberli, Gregor T. Baechle, Jose L. Massaferro, Yue-Feng Sun

AAPG Bulletin

... scatter of velocities at any given porosity with the velocity deviation, which is defined as the difference between measured velocities and velocities...

ABSTRACT: 3D Pre-Stack Depth Migration of a Land Survey with Considerable Multiple Interference - A Case History; #90051 (2006)

Frederick Kierulf, Adam Fox, Luke F. LaFreniere

Search and Discovery.com

... sets have tested the limits of software and computer resources. Much effort was focused on the initial velocity model development. Several models...

3D Pre-Stack Depth Migration of a Land Survey with Considerable Multiple Interference - A Case History

Search and Discovery.com

Application of combined inversion of lithofacies and impedance based on rock physical constraints in sandstone characterization in Liaodong Bay of Lvda area

Xun Liu, Wei Gao, Huihuang Tan, Yu He

International Meeting for Applied Geoscience and Energy (IMAGE)

... in the study area and the surrounding rock physics analysis, lacustrine fan sandstone impedance between low-velocity mudstone and lacustrine fan...

Abstract: Pore Type and Permeability Predictions in Carbonate Drillholes by Comparing the Velocity and Porosity Logs ("Velocity-Deviation Log"), by F. S. Anselmetti, G. P. Eberli, and L. A. Melim; #90956 (1995).

Search and Discovery.com

Pore Presure Prediction Based On 3D Seismic Velocity Data—A Case Study

Search and Discovery.com

Into the Abyss!

William Wills

GEO ExPro Magazine

... between lithologies proximal to the well whilst even revealing subtle impedance changes beyond total depth of the exploration well. At its most basic...

A Deep-Water VSP Borehole Seismic Case History With Lessons Learned, Problems Solved and Values Demonstrated

William L. Soroka, Vincent Favreu, Ericska Kariman, Aldrin Muchtar

Indonesian Petroleum Association

.... Equipment used to acquire all three VSP’s consisted of a four level, 3-component geophone array with a 15 meter spacing between geophones. The source...

What is Horizontal Resolution?

L. R. Denham, R. E. Sheriff

Indonesian Petroleum Association

.... BLACKBURN, G., 1980, Errors in stacking velocity – true velocity conversion over complex situations: Geophysics v. 45 pp. 1405-1488. GARDNER, G.H.F....

ABSTRACT: Advances and Challenges in Seismic Data Processing and Imaging for Geologically Complex Areas, by Rubén D. Martínez; #90158 (2012)

Search and Discovery.com

Broadband reconstruction of seismic signal with generative recurrent adversarial network

Zhijun Zhang, Wei Song, Wei Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... the bandwidth, they also face the digital contradiction between SNR and resolution (Li Qingzhong, 2008). With the exploration object becoming more...

PS reflection-based full-waveform inversion using single-mode propagator

Yongbo Zhai, James Xu, James Rickett, Peng Wang, Xin Cheng, Denes Vigh, Suyang Chen, Cara Smith

International Meeting for Applied Geoscience and Energy (IMAGE)

... structures through improved earth model building. However, the predominant focus has been on constructing pressure (P)-wave velocity models, while...

Seismic Stratigraphic Study of Two Oxfordian Carbonate Sequences, Eastern Saudi Arabia

George S. Langdon , Steven J. Malecek

AAPG Bulletin

... transitional between shoal and basin. To the southwest, at W-2, W-3, and W-4, carbonate mudstones indi ate low-energy, intermittently restricted, shallow...

Clari-Fi’ Broadband Processed 2D Seismic in Portugal and the Mid-North Sea High

Sindre Jansen, Will Bradbury, Bent Erlend Kjølhamar, TGS

GEO ExPro Magazine

... data compromised by shallow high velocity carbonates causing strong multiples. Despite the uncertainties regarding the structural interpretation, six...

Exploration of Deepwater Regions Offshore India

Roberto Fainstein, Rajesh Kalra

International Meeting for Applied Geoscience and Energy (IMAGE)

... corrections to the velocity model, and the influence caused at reservoir level tying events Model construction depicts difference between Initial...

Integration of geology, rock physics, logs, and prestack seismic data for reservoir porosity estimation

Abdulaziz M. AlMuhaidib, Mrinal K. Sen, M. Nafi Toksoz

AAPG Bulletin

...). Figure 5 shows the relations derived from log data from well A between P-wave velocity (Vp) and shear velocity (Vs) vs. porosity, P-impedance...