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The AAPG/Datapages Combined Publications Database

Showing 17,696 Results. Searched 200,357 documents.

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Prestack true-amplitude angle-domain viscoelastic least squares reverse time migration

Yue Wang, Yang Luo, Peng Shen, Jingru Chen, Guangchi Xing, Ao Cai, Mark Fan, Guojian Shan, Lin Zhang, Xiaoting Lou, Zhengyun Zhou

International Meeting for Applied Geoscience and Energy (IMAGE)

... and field data examples show gathers with accurate moveout and reflectivity suitable for viscoelastic velocity model building and reservoir...

2024

A Comprehensive Approach to Depth Imaging in Thrust Belt Environments

Ron Schmid, Brian Link, Patrick Butler

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... that addresses the challenges of land 3D datasets. The velocity analysis is performed in two discrete steps: 1) Initial model generation, using rapid...

1997

Prestack Depth Imaging Within the Makassar Straits, Eastern Kalimantan, Indonesia

Chris Willacy, Suryadi Oemar, A. Edy Hermantoro, Paul Gilleran

Indonesian Petroleum Association

... to constrain this velocity variation, and combined with velocity focusing analysis provide sufficient resolution to accurately migrate the data. Strong water...

2000

Abstract: Nisku Multiple Attenuation with Interpolation and Sparsity: A Case Study; #90172 (2014)

Lee Hunt, Scott Reynolds, Mark Hadley, Scott Hadley, Mike Perz, Ye Zheng

Search and Discovery.com

.... Hunt et al (2008) showed that the 5D interpolation method allowed for improved AVO analysis on imaged gathers. In this last case, the interpolator...

2014

Abstract: Smart Supergrouping Improves Residual Static Estimation in Areas with Challenging Seismic Data Quality; #90254 (2016)

Pavel Golikov, Maxim Dmitriev, Andrey Bakulin, Dmitry Neklyudov, Rienk Lakeman

Search and Discovery.com

... supergrouping in residual statics estimation. We believe it is also useful for other processing steps such as velocity analysis and first break picking...

2016

Abstract: Optimum Aperture Length for Improving Dispersion Curve Analysis in CMP Cross-Correlation of Surface Waves; #90187 (2014)

Roohollah Askari, Robert J. Ferguson, and Helen Isaac

Search and Discovery.com

.... By putting together all the vertical shear wave velocity profiles of all the CMP gathers, 2D images of shear wave velocity are obtained for the data set...

2014

Premigration attenuation analysis and mapping to image domain by weighted migrations

Yonghe Sun, Chunling Wu, Mark Fan, Zhemin Tan

International Meeting for Applied Geoscience and Energy (IMAGE)

... path. Figure 2: (a) A 1-D layered Q model. The velocity model is constant with v=2000 m/s. (b) A common-shot-point (CSP) gather with a set of events...

2022

Abstract: Case Study- High Resolution Velocity Model Building to Improve Carbonate Reefs Image in Tz Area; #91204 (2023)

Hongjun Zhang, Yang Chen, Zhengzheng Zhou, Xiang Li, Hotma Yusuf, Haryono Haryanto, Farid Dasa Marianto

Search and Discovery.com

... model is built by using RMS velocity in accordance with the well information (Fig.2 up left). Firstly, sonic logs are carefully analyzed, such as log...

2023

Abstract: Shear Velocity Prediction and its Rock Mechanic Implications; #90174 (2014)

Yexin Liu, Zhuoheng Chen, and Kezhen Hu

Search and Discovery.com

... be inverted using current advanced pre-stack seismic inversion technique from seismic AVO angle gathers (Russell et al. 2005). Like the petrophysical...

2014

Application of Anisotropic Depth Imaging Onshore

Scott Sutherland, Marianne Rauch-Davies

Unconventional Resources Technology Conference (URTEC)

... was scaled using an arbitrary scaling factor in an attempt to mimic a velocity control point like well tops. The results show that even in simple cases...

2017

Abstract: Progress and Challenges in the Processing and Use of Land Seismic Data Acquired via Compressive Sensing; #91204 (2023)

Gregory Culianez, Tahar Ben Youssef, Mohammad Farooqui, Ahmed Al Harthi

Search and Discovery.com

... an accurate shallow sub-surface model. Our study also includes analysis of FWI input gathers to ensure consistency of the inversion process between CS...

2023

Enhancing Seismic Data Resolution with Multi-Attribute Analysis Using Both Well Log Data and Seismic Data … A Case Study, #70281 (2017).

K. John R. Fernando

Search and Discovery.com

.... Velocity Analysis, NMO, Mute 4. 3D Pre-Stack Migration COMMON DEPTH POINT GATHER A) Seismic data a) 3D Pre-Stack Migrated Stack data b) Angle Stacks...

2017

Seismic imaging of the Turtle Mountain structure, southwestern Alberta, Canada

J.H. Isaac, D.C. Lawton, C.W. Langenberg

CSPG Bulletin

... (MVA) using common image gathers. The correct velocity is that which images a particular reflector at the same depth for every source-receiver offset...

2008

The Global Offset Seismic Approach: Improving Seismic Imaging In Complex Geological Settings

Paolo Dell'Aversana

Petroleum Exploration Society of Australia (PESA)

... as a valid support for static corrections, velocity analysis and migration. Pre-stack depth migration (PSDM) The CMP gathers were used as an input for a PSDM...

2004

Hybrid Velocity Model Building: 3D Ocean Bottom Cable (OBC) Orthorhombic Full Waveform Inversion (FWI) Depth Imaging of a Complex Geological Structure, Western Berau - Papua, Indonesia

Purbo Santoso, Yayat Supriatna, Tepy Septyana, Leo Tjahjadi, Yonghe Guo

Indonesian Petroleum Association

... Orthorhombic FWI updated model (b). It is clearly seen that the gathers are flatter after updating the velocity model using Orthorhombic FWI. © IPA, 2019...

2019

Imaging Subsurface Structures Under Gas Clounds by Multi-Component Technology

Xiaogui Miao, Loh Fong Cheen, Libo Zi, Jing Du, Magali Beele, Jacques Bonnafe, Natalia Anggriani, Gilles Vallon, Claudio Strobbia

Indonesian Petroleum Association

... statics correction, common conversion point (CCP) binning, converted wave velocity Vc and gamma (velocity ratio) analysis, and PS-wave migration...

2014

Abstract: Time-Lapse Repeatablity in 3C-3D Dataset from Weyburn CO2 Sequestration Project; #90171 (2013)

Jinfeng Ma, Le Gao, and Igor Morozov

Search and Discovery.com

..., and velocity analysis by using ProMax. Operations most strongly distorting the amplitudes, such as F-XY, AGC, and migration were not used in our flow...

2013

Imaging of Fractures and Faults inside Granite Basement Using Controlled Beam Migration (Geophysics Paper 5)

Don Pham, Jason Sun, James Sun, Qingbing Tang, Graeme Bone, Nguyen Truong Giang

Geological Society of Malaysia (GSM)

... that is based on residual curvature analysis (RCA) of Common Image Gathers, in a top-down approach. The method was successful in group one, but met...

2008

Improving subsalt images using reflection FWI on WAZ data: Examples from the Gulf of Mexico

Maksym Kryvohuz, Yihua Cai, Sebastian Ramirez, Robert Schelstrate, Gislain Madiba

International Meeting for Applied Geoscience and Energy (IMAGE)

... were generated using both initial and RFWI velocity models for comparison and analysis purposes (Figure 2). As expected, the RFWI velocity model helped...

2022

Dude, wheres my AVO? A case study from the Browse Basin, North West Shelf, Australia

Said Amiribesheli, Jordan McGlew, Joshua Thorp

Petroleum Exploration Society of Australia (PESA)

..., this velocity analysis proved to be insufficient for imaging the sections below the highly anisotropic Jamieson Formation shale which is found regionally...

2019

Value of elastic full-wavefield inversion in derisking clastic reservoirs in presence of noise

Partha Routh, Soumya Nayak, Jake Dorsett, Kaushik Banerji, Young Ho Cha, Vijay Gottumukkula, Gopal Palacharla, Vikas Gudipati, Ramesh (Neelsh) Neelamani, Seth Conway, Andrea Raphael

International Meeting for Applied Geoscience and Energy (IMAGE)

... to infer AVO information. Bandlimited P-impedance (Ip) and ratio of P- and S-wave velocity (Vp/Vs) are inverted from angle gathers with an estimated wavelet...

2023

Seismic Lithology and Pitfalls in Seismic Porosity Detection: ABSTRACT

D. R. Balogh, W. Barney, D. Harvey, G. W. Snyder

AAPG Bulletin

... in reflection amplitude with offset within common depth point gathers. Consequently, after stacking, the stacked section will be poorly correlated...

1985

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