Delineation of the Reservoir by Seismic Methods: Chapter 3

Roberto Sarmiento

AAPG Special Volumes

... and seismic modeling, acoustic impedance logs, stacking velocities from common depth points, applications of wave equation, three-dimensional surveying...

Abstract: Seismic Data Processing in Anisotropic Media, by V. Celis; #90951 (1996).

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PSDM Enhances Reef Interpretation in Jatiluhur Block, West Java

Jopie I. Adhidjaja, Andrew J. Davidoff, Ika Ratna Novianti

Indonesian Petroleum Association

... successfully utilized pre-stack depth migration (PSDM) to improve imaging. PSDM processing uses advanced velocity analyses techniques including...

SYNTHETIC SEISMOGRAMS

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Uncertainty in Surface Microseismic Monitoring; #41258 (2013)

Mike Mueller, Michael Thornton, and Leo Eisner

Search and Discovery.com

... the sensitivity to velocity model assumptions. Furthermore, these arrays are well disposed for permanent monitoring of multiple wells. The primary...

Abnormal Formation Pressures: Recognition, Distribution, and Implications for Geophysical Prospecting, Brazoria County, Texas

Edward T. Flanigan

GCAGS Transactions

... function (Va) (Fig. 10), and the two velocity trends converge with depth. This is interpreted to result from dip of a low-velocity unit. The velocity...

Improving the image below complex overburden geology with FWI and Q-tomography: A case study at Etame license area, offshore Gabon

Richard Huang, Chong Chung, Benjamin Cole, Ivan Berranger, Ika Novianti, Paul Ware

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the target events for FWI. This area is characterized by fast velocity bodies located in the shallow to mid-depth region of the subsurface...

Multi-survey full-waveform inversion gradient balancing with illumination probing method

James Xu, David F. Halliday, Federico G. Andreasi, Xikai Zhao, James Rickett

International Meeting for Applied Geoscience and Energy (IMAGE)

.../weak gradient amplitudes are due to illumination effect or model errors. In addition, gradient balancing problem do not only exist in multi-survey...

Abstract: 3-D Acquisition Realities and Processing Strategies in Mountainous Thrust Areas, by S. Mackay, S. Wright, J. Gaiser, A. Jackson, C. Beasley, and R. D. Wisecup; #90958 (1995).

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Unlocking subsurface complexity: Sparse ocean-bottom node and full-waveform inversion for northern Green Canyon, Gulf of Mexico

Kate Glaccum, Denes Vigh, Yao Yu, Eray Kocel, Bing Bai, Di Chen, Hongyan Li, Kevin Lyons

International Meeting for Applied Geoscience and Energy (IMAGE)

... in the starting velocity model. The effective depth penetration of this model update needed to reach the full depth record for which imaging and earth model...

Integration of Vertical Seismic, Surface Seismic, and Well-log Data at the Mallik 2L-38 Gas-hydrate Research Well, Mackenzie Delta, Canada

M. W. Lee, T. S. Collett, W. F. Agena

AAPG Special Volumes

... components of the zero-offset and offset P-wave VSP data were used to derive P-wave velocity and dip angles, and S-wave velocities were derived from...

Geological Considerations during Microseismic Monitoring, Processing, and Interpretation of Hydraulic Fracture Treatment

J. Le Calvez, S. Hanson-Hedgecock, P. Primiero, T. Al-Wadhahi, O. Harrasi

Unconventional Resources Technology Conference (URTEC)

... and smoothed velocity model, or errors in the dip and rotation of velocity models used to account for the structure of formation surfaces around the target...

Combined Diving Wave Refraction Tomography and Reflection Tomography for PSDM Velocity Model Building (Bekapai Field, Indonesia)

Andi Kusuma, Florent Bertini, Jacques Bonnafe, Artem Sazykin, Swee Leng Ng

Indonesian Petroleum Association

.... The initial velocity field has been further updated with iterative Pre-Stack Depth Migration (PSDM) and reflection tomography with input data having...

Seismic Activity in the Central Gulf Coast Basin

Eugene R. Brumbaugh

New Orleans Geological Society

... multiple energy is traveling at a slower velocity than deeper real primary reflections, recording and stacking longer detector distances using real...

Integrated Full Waveform Inversion and Dip Constrained Tomography for Complex Carbonate Imaging - Case Study from Indonesia

Yonghe Guo, Jun Wang, Pongga Wardaya, Riaz Alai, M Afiq B Mokhtar, Rizki Krishna Pratama, Haryono Haryanto

Indonesian Petroleum Association

... velocity update tools gives a more reliable image of the target area. Keywords: Velocity Model Building, Full Waveform Inversion, Dip Constrained Tomography...

Prediction of Normal-Fault Geometries--A Sensitivity Analysis

Martha Oliver Withjack, Eric T. Peterson

AAPG Bulletin

... fault shape and detachment depth to errors in the dip of the fault segment at the base Cretaceous unconformity. For our assumed fault dip of 60...

Simple model, complex strata: 2-D numerical forward model analysis of heterogeneity and controls in submarine fan systems

Alfie W. Mackie, Christopher J. Stevenson, Peter M. Burgess

Journal of Sedimentary Research (SEPM)

... which were varied in ranges taken from literature to explore the effect on stacking patterns and spatial entropy. Reference values were used for all...

Effects of near Surface Lithology on Velocity Modelling and Time„Depth Relationships in the Cooper„Eromanga„Lake Eyre Basin

Anna Manka, Glen Buick, Rob Menpes, Luke Gardiner, Cameron Jones, Khalid Amrouch

Australian Petroleum Production & Exploration Association (APPEA) Journal

...: Cooper–Eromanga Basin, depth errors, exploration, near surface geology, velocity modelling. Received 12 December 2017, accepted 13 February 2018...

Time-lapse attenuation variations during CO2 injection using DAS VSP data from the CaMI Field Research Station, Alberta, Canada

Yichuan Wang, Donald C. Lawton

International Meeting for Applied Geoscience and Energy (IMAGE)

... trace and stacking their waveforms. This method is straightforward and requires no sophisticated inverse algorithm. It is data-driven and applied...

Seismic HC Reservoir Prediction: A (Critical) Review on the Determination of Lithological Parameters from Seismic Data

Burkhard Buttkus

Geological Society of Malaysia (GSM)

... that the expected error in interval velocity is proportional to the error of the stacking velocity, multiplied by a factor which is proportional to the ratio...

Seismic Processing in the Papua New Guinea Fold Belt - Recent Experience

N. J. Fisher, F. R. Nicholson

Papua New Guinea (PNG) Petroleum Convention Proceedings

.... The approach with Papua New Guinea fold belt data was initially along similar lines but it soon became apparent that stacking velocity selection...

Land 3D Acquisition Techniques Related to S.E. Asian Situation

Walter Ritchie

Indonesian Petroleum Association

... of the subsurface. It is possible to obtain an optimum stack for each line by adjusting velocity for NMO correction dependent on degree of dip along line...

Southwest Palawan, Philippines: A Case Study in Seismic Imaging and Interpretation of Complex Structures

Philip M. Rimando, Geronimo A. Manuel, Raymundo A. Reyes, Jr.

Southeast Asia Petroleum Exploration Society (SEAPEX)

... and analysis. The specific algorithms we employed are offset-dependent deconvolution before stack, velocity analysis at closely-spaced interval, dip...

Water column corrections: Joint water velocity inversion for 4D marine surveys

Didier Lecerf, Mathieu Lange, Andrew Oates, Jyoti Kumar

International Meeting for Applied Geoscience and Energy (IMAGE)

... and correcting water velocity changes on 4D seismic datasets. Each sail line is migrated independently and Common Depth Point (CDP) gathers are output...

Shallow VSP for Near-Surface Structure and Statics, #41535 (2015).

Soo-Kyung Miong, Robert R. Stewart, Joe Wong

Search and Discovery.com

... first-arrival time matches the observed firstarrival time with an error less than 1 ms. Depth and thickness of the velocity layers are assigned...