“4C/OBS Data Processing and Interpretation – Old Myths, New Insights”

22nd April, 2002at NPD in Stavanger

Abstract/Presentations:

Chairmen: Olav Inge Barkved/Lasse Amundsen
Welcome, Olav Inge Barkved, BP
“Pre-Stack Time Migration of Multi-Component Data”,Jan Langhammer and Thomas Tvedt, PGS Geophysical
“Anisotropic Processing of 4C Seismic Data”, Xiang-Yang Li, Edinburg Anistrophy Project
“Anisotropic 3D pre-stack depth migration of multi-component data”,Tomasz Gasiorowski, Ebba Schmidt and Gillian Brown, WesternGeco
“3D Multicomponent Seismic Imaging at Valhall Field” (PDF-format 3,9 KB) , Dan Whitmore (Phillips Petroleum), Richard Clarke, Joe Dellinger, David Wilson, Olav Inge Barkved, Leon Thomsen, Bertram Nolte (BP)
Chairmen: Karl Kravik/Brackin Smith
“High (Vp/Vs) ratio derivations: a prerequisite for combined multi-mode interpretation”,Pierre-Yves Granger, Compagnie Générale de Géophysique
“Combined PP and PS data analysis to identify hydrocarbons”,(PDF-format 3,8 KB) Eivind Fromyr and Santi Randazzo, PGS Seafloor Seismic
“Borehole-Guided Multicomponent Processing and Reservoir Characterisation”, Steve Morice, Victor Aarre, Matthew Aitchison (WesternGeco) and Mark Wheeler (Schlumberger)
“Dispersive noise attenuation for converted wave data”,Robert Soubaras, Compagnie Générale de Géophysique
“Pseudo shear-wave processing”, (ppt-presentation) Vladimir Grechka, Shell International Exploration and Production Inc.
Chairman: Brackin Smith
Lunch and Poster session
Chairmen: Jan Petter Fjellanger/Lasse Ammundsen
“Interpretation of the Hod OBS 4C Survey”, Mark Ackers, Per Mjelde, Per G Folstad & Larraine Beacom, BP Norge
“Eldfisk 4C acquisition and initial processing – findings and results”, Olaf Knoth, Brant Byerley, Phillips
“Multi-azimuthal PZ data – a step forward in fault definition on Statfjord”, Einar Magerøy, Inger Kloster Osmundsen and Roy A Sørbel, Statoil
“4C/OBS data acquisition and processing, their influences on interpretation. A study of Gullfaks Sør”,Mark Thompson, Statoil
Paneldiscussion/Summary
Poster Session
Dinner at De Røde Sjøhus sponsored by BP and Exxon/Mobil

POSTERS:

The Effect on in-line versus cross-line acquisition on 3D multi-component OBS data, Jan H Kommedal, Mark Ackers and Per G Folstad, BP

Aspects of anisotropic PS PreSDM: from PS migration velocity analysis to PP-PS co-depthing, Francois Audbert, Pierre-Yves Granger, Ariane Herreschmidt, Compagnie Générale de Géophysique

Frequency-dependent anistrophy and implications to fracture characterisation, Xiang-Yang Li, Mark Chapman and Enru Liu, Edinburg Anistrophy Project

Matching OBS to surface seismic data for reservoir monitoring at the Statfjord Field,
J Helgesen, G Øxnevad and F Foldal (Compagnie Générale de Géophysique), K Duffaut, M Thompson (Statoil), H Wang (NTNU)

Azimuthal Analysis of Shear-wave Splitting for the Characterization of Dipping Fractures, Erika Angerer, Steve Horne, Richard Walters (WesternGeco), Jim Gaiser (WesternGeco, Denver), Laura Vetri (Eni/Agip div Milan)

PZ Calibration using critically refracted waves, (PDF-format) Aslaug H Strømmen-Melbø, Johan O. A. Robertsson and Dirk-Jan van Manen, WesternGeco

Strategies for anistropic parameter estimation in multi-layered VTI media, Long Don Pham, Jerry Yuan, Min Lou, Yaohui Zhang PGS Geophysical(presented by Thorbjørn Rekdal)

Alba – from Anistropic Pre-Stack Depth Migration to Seismic Inversion, Dave Wilkinson, Oleg Mikhailov, Rex Hanson ChevronTexaco