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The AAPG/Datapages Combined Publications Database

Showing 8,154 Results. Searched 200,293 documents.

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ABSTRACT: Dynamics 3D/ 4D Modeling of Natural Gas Reservoir: Resolving the Complexities of the Niger Delta Formations for Effective Gas Production; #90007 (2002)

Ukpohor Theophilus

Search and Discovery.com

... was originally based on 2D seismic models, which provides a lot of ambiguity and limitations. Major structures were not fully comprehended while a lot...

Unknown

Understanding The Mesozoics Beyond Basalt: A Case Study Of Sub-Basalt Imaging

S. Sengupta, S. K. Goswami, G. Menzel-Jones, B. Chowdhury, Artem Sazykin

Indonesian Petroleum Association

.... * WesternGeco • Low signal-to-noise ratio creating ambiguity in estimating accurate velocity model of subsurface. This case study demonstrates...

2020

Determination of Velocity Model by Using NIP-Wave Tomographic Inversion: Application to Synthetic and Real Data

A. Hendriyana, R. Sule, Y. Akbar, L.A. Poerwaka, T.A. Sanny, Sardjito, Waluyo, Adriansyah

Indonesian Petroleum Association

... and laterally heterogenous velocity model. This method can improve the limitations of reflection tomography. Keywords: attributes tomographic inversion...

2009

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

... in the pre-stack time migrated data. The effectiveness of the depth interval velocity model in incorporating those velocity variations is one...

2011

High-Resolution Anisotropic Earth Model Building on Conventional Seismic Data Using Full-Waveform Inversion: an Offshore Australia Case Study

Bee Jik Lim, Denes Vigh, Stephen Alwon, Saeeda Hydal, Martin Bayly, Chris Manuel, Dimitri Chagalov, Gary Hampson, Dimitri Bevc

Indonesian Petroleum Association

..., the initial starting model was derived from a smooth version of a reflection traveltime tomography velocity field derived from a depth migration workflow...

2014

Impact of Pre-Stack Depth Migration on the Anama Prospect, Papuan Foreland Basin

K. Bradey

Papua New Guinea (PNG) Petroleum Convention Proceedings

... Figure 14. Interval velocity-depth section, line A-A’, after horizon tomography and grid tomography, showing velocity increase near the base...

2000

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)

...-wave data. Conventional shear velocity model building (VMB) relies on joint PP-PS tomography and event registration. Similar to P-wave tomography, PP...

2024

Late Cretaceous to Present-Day Opening of the Southwest Pacific Constrained by Numerical Models and Seismic Tomography

Kara J. Matthews, Maria Seton, Nicolas Flament, R. Dietmar Müller

Petroleum Exploration Society of Australia (PESA)

.... (2010) suggested that a linear northsouth trending band of fast seismic velocity material located at 1325‑920 km depth, in the P-wave tomography model...

2012

Two-dimensional seismic refraction tomography of a buried bedrock valley at Hallsands beach, Devon, United Kingdom

Eric B. Avalos, David H. Malone, Eric W. Peterson, William P. Anderson, and Roland W. Gehrels

Environmental Geosciences (DEG)

... subsurface sediments less than 300 m (1000 ft) in depth offshore Kyushu, Japan. Higuera-Díaz et al. (2007) used 2-D refraction tomography to test...

2016

Cross-Borehole Tomography in Development Geology: Part 7. Geophysical Methods

J. H. Justice, M. E. Mathisen, J. R. Bulau, A. A. Vassiliou

AAPG Special Volumes

... (5 to 40 kHz), whereas seismic tomography measures the velocity of sound at seismic frequencies, usually in the frequency range of 20 Hz to as high...

1992

Ultra-Long Offsets Signal a Bright Future for OBN

Duncan Bate, Mike Perz, TGS

GEO ExPro Magazine

.... The tomography driven workflow. The updated DM-FWI model (lower) shows the velocity model is more time spent tripping the conformable to the geology...

2021

Recognition of boulder in granite deposit using integrated borehole and 2D electrical resistivity imaging for effective mine planning and development

Muhammad Junaid, Rini Asnida Abdullah, Radzuan Saa'ri, M. Alel, Wahid Ali, Arshad Ullah

Geological Society of Malaysia (GSM)

... provides univocal and efficient vertical subsurface geological information, drilling exploration techniques have some principle limitations in detail...

2019

Three-Dimensional Seismic Attributes Help Define Controls on Reservoir Development: Case Study from the Red River Formation, Williston Basin

R. A. Pearson, B. S. Hart

AAPG Special Volumes

... operators should explore for, or develop, Red River reservoirs. Developing a methodology for resolving this ambiguity was the primary focus...

2004

Application of high-end seismic imaging technologies for field development in NWS Australia

Min Lee Chua, Kai Zhao, Narcisa Lazarescu, Wai King Yong, Sergey Birdus, Alexey Artemov, Xiang Li

Petroleum Exploration Society of Australia (PESA)

...uilding: a tomography update to focus on the low frequency background trend and anisotropic parameters update, and FWI to focus on resolving the velocity contra...

2019

Advances in Depth Imaging Technology: Rock Physics Guided Migration of Seismic Data in 3D

Nader C. Dutta, Sherman Yang, Jianchun Dai

Indonesian Petroleum Association

... GUIDED MIGRATION OF SEISMIC DATA IN 3D Nader C. Dutta* Sherman Yang* Jianchun Dai* ABSTRACT Conventional approaches to build velocity models for depth...

2012

Processing the first full azimuth OBN survey in Australia: a step change in imaging quality

Unnikrishnan Chambath, Vincent Ganivet, Sergey Birdus, Joe Zhou, Alain Delorme, Leigh Scoby-Smith, Ivan Gregory, Matt Kovacevic, Tim Williams, Chris Walton

Petroleum Exploration Society of Australia (PESA)

..., OBN upgoing and OBN downgoing) were used in the full azimuth tomography update, starting from the vintage streamer velocity model. The superior signal...

2019

Porosity Log Crossplots

John H. Doveton

Special Publications of SEPM

... to cancel one another out. Some of this ambiguity can be seen in the middle of the Viola section (Fig. 31a), where it is difficult to differentiate...

1994

Establishing Novel Views on Reservoir Compartmentalization Utilizing Systematic Data-driven Seismic Processing Frameworks

Riaz Alai, M Afiq B Mokhtar, Jun Wang, Yonghe Guo, Ecep Suryana

Indonesian Petroleum Association

... applied on depth migrated volumes have indicated regional and significant large-scale faults with limitations. However, to further understand reservoir...

2019

Tackling data challenges in land FWI: A case study

Victor Lopez, Yun Dong Guo, QingYang Li, Bin Yu, Changhua Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... significant improvements to the velocity and seismic imaging were achieved. 4. Reflection Tomography. The initial velocity model was created using well...

2023

Abstract: Spectral Decomposition of Seismic Data with Wavelet-Packet-Like Transform; #90211 (2015)

Rongfeng Zhang

Search and Discovery.com

... several limitations when resolving thin bed seismic events. The STFT method uses a fixed window length for all frequency analysis, while the CWT method...

2015

Abstract: Feasibility Testing of Time-lapse Seismic Monitoring with Full Waveform Tomography; #90171 (2013)

Chad Hogan, Ken Hedlin, Gary Margrave, and Michael Lamoureux

Search and Discovery.com

..., University of Calgary Summary Full waveform tomography reveals subtle sub-wavelength perturbations in the velocity model, given a sufficiently...

2013

Abstract: Imaging Sub-Volcanic Sediments From Wide-Angle Seismic Data In Selected Basins Of India; #90315 (2017)

Kalachand Sain

Search and Discovery.com

... that have made standard geophysical techniques incapable of probing Mesozoic sediments hidden underneath due to their inherent limitations. We have...

2017

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