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The AAPG/Datapages Combined Publications Database

Showing 17,717 Results. Searched 200,636 documents.

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Unlocking the potential of WAZ data for subsalt imaging using FWI: A case study in the Perdido area

Vivek Vandrasi, Zhihua Su, Shouting Huang, Yogesh Agnihotri, Sabaresan Mothi

International Meeting for Applied Geoscience and Energy (IMAGE)

...*, Zhihua Su, Shouting Huang, Yogesh Agnihotri, Sabaresan Mothi, CGG Summary Full-waveform inversion (FWI) has become the norm in velocity model building...

2022

Enhancing Reservoir Imaging and Monitoring Using Crosswell Seismic

Sanjeev Dogra, Ajay Nalonnil, Bruce Marion

Indonesian Petroleum Association

... the efficiency of these strategies is paramount. In these examples, crosswell seismic has been able to successfully monitor the injection through velocity...

2010

CO2-EOR monitoring using time-lapse FWI with walkaway VSP datasets in a carbonate field onshore Abu Dhabi

Yuji Yamada, Shotaro Nakayama, Tomohide Ishiyama, Mikako Mochizuki, Takuji Mouri, Hidehiko Shimizu, Aysha Mohammad Al Hamedi, Afra Aljaberi

International Meeting for Applied Geoscience and Energy (IMAGE)

... were acquired with an optimum signal-to-noise ratio. We then applied full waveform inversion (FWI) to estimate timelapse velocity changes induced...

2023

High-resolution imaging with FWI on wide azimuth towed streamer data: Application in the Mississippi Canyon, GoM

Wanying Wang, Simon Luo, Xiaolei Song, Lennon Infante, Imtiaz Ahmed, Qingsong Li, Ganyuan Xia, Katrina Packer

International Meeting for Applied Geoscience and Energy (IMAGE)

... model. We improved model resolution to 24 Hz. The resulting velocity model and FWI derived reflectivity (FDR) reveal previously unseen structures...

2024

Resolving Seismic Attenuation Issue through Q-Migration, a Case Study in Sisi-Nubi Field, Indonesia

Bastian Hutahayan, Keat Huat Teng, Kelik Moersidin, Jacques Bonnafe, Natalia Anggriani, Cepi M. Adam

Indonesian Petroleum Association

... the structural images. A total of eight iterations of interleaved Q and velocity tomography updates were performed to optimize the Q and the velocity models...

2015

About the importance of the horizontal components of the wavefield for a well-constrained velocity inversion: 3-C versus 1-C inversions

Isabelle Dumont, Sophie Beauprêtre, Anaïs Lavoué, Dan Hollis, Chloé Gradon

International Meeting for Applied Geoscience and Energy (IMAGE)

...About the importance of the horizontal components of the wavefield for a well-constrained velocity inversion: 3-C versus 1-C inversions Isabelle...

2024

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

Paolo Dell'Aversana

Petroleum Exploration Society of Australia (PESA)

... in order to perform robust inversions of first arrivals, near vertica l and wide angle reflections. The output i s a reliable parametric model (velocity...

2004

Settling Velocities of Quartz and Tourmaline in Eolian Sandstone Strata

James R. Steidtmann, Harry C. Haywood

Journal of Sedimentary Research (SEPM)

... settling velocity-in-water curves for quartz and tourmaline were determined for 41 samples of eolian grainfall and subcritically climbing ripple...

1982

Abstracts: Seismic Anisotropy of the Marcellus Shale: Feasibility Study for Fracture Characterization; #90173 (2015)

James Gaiser, Alvaro Chaveste, Mary Edrich, Tony Rebec, and Richard Verm

Search and Discovery.com

... characterization of two principal crack densities, an infill fluid factor and isotropic background velocity is possible by inversion of NMO ellipses and zero...

2015

Permeability Prediction in Chalks; #40506 (2010)

Mohammad M. Alam, Ravi Sharma, Ida L. Fabricius, and Manika Prasad

Search and Discovery.com

... the use of velocity data to predict permeability from wireline logging data for the chalk reservoir in South Arne field, North Sea. We first examined...

2010

Seismic Signature of CO2 Flooding in Tuscaloosa Sandstone; #40942 (2012)

Avinash Mohapatra, Chandra S. Rai, Carl Sondergeld, and Trevor L. Richards

Search and Discovery.com

... velocity measurements as a function of effective pressure showed Biot effective pressure coefficient (n) is approximately equal to 1.0 and independent...

2012

Velocity for Pore Pressure Prediction Modeling and Risk Assessment; #41819 (2016).

Selim Simon Shaker

Search and Discovery.com

...Velocity for Pore Pressure Prediction Modeling and Risk Assessment; #41819 (2016). Selim Simon Shaker Velocity for Pore Pressure Prediction Modeling...

2016

-- no title --

Ehsan, Athar

Search and Discovery.com

... Wang3, Jidong Yang4 Jin Keji5 ABSTRACT The Full Waveform Inversion (FWI) method is a velocity building technique which exploits the richness...

Unknown

Abstract: 3D Time Domain Full Waveform Inversion Based on Multiscale Adapted Variable Grid Method Case Study Majunga Basin East African Coast; #91204 (2023)

Mukiibi Ssewannyaga Ivan, Jian-Ping Huang, Zi-Ying Wang, Jidong Yang, Jin Keji

Search and Discovery.com

...) method is a velocity building technique which exploits the richness of seismic waveforms to reconstruct high resolution velocity models. The multiscale...

2023

Full Wave Acoustic Logging: Some Examples

John W. Minear

Southeast Asia Petroleum Exploration Society (SEAPEX)

.... Examples of fullwave acoustic signals from different lithologies. Figures 2.c and 2.d show signals from low velocity formations; unconsolidated, high...

1984

Elastic full-waveform inversion using OBN data acquisition

Denes Vigh, James Xu, Xin Cheng, Bing Bai

International Meeting for Applied Geoscience and Energy (IMAGE)

... to build detailed velocity models over the past ten years. Most of these projects used pressure data and an acoustic approximation with the assumption...

2022

Derivation of Seismic Depth Sections

H. Buchholtz, W. Houba

Geological Society of Malaysia (GSM)

... of the underlying velocity model. A simple depth conversion of the time scale is a very limited procedure and fails completely in the presence...

1987

Tomographic waveform inversion (TWI) applied to real seismic data

Jlio Oliva Frigrio, Biondo Biondi

International Meeting for Applied Geoscience and Energy (IMAGE)

... algorithm that produces accurate velocity models for subsurface areas comprehending either mild or severe geological complexity. Among its advantages...

2022

Practical solutions for reflection-driven FWI and application to Gulf of Mexico datasets

Max Liu, Ren-douard Plessix, Yi Yang, Jeffrey Vander Hurst, Na Shan, Rob Schelstrate, Colin Perkins, Vanessa Goh

International Meeting for Applied Geoscience and Energy (IMAGE)

... impedance imprints in velocity updates. Phase-only objective functions with a velocity-impedance parameterization mitigate some of these challenges. After...

2022

Impact of full-wavefield inversion (FWI) based high-resolution model building and Q imaging on exploration and development at Guyana Stabroek

Fuxian Song, Patrick Monigle, Jia Yan, Vikas Gudipati, Xu Li, Sunwoong Lee, Sam Hemmings-Sykes, Ashlika Persaud, James Pape, Lee E Gilchriest, Amir Abdi, Emily Lalli, Anupama Venkataraman, Ramesh Neelamani, Steve Knapp, Krista Solvason

International Meeting for Applied Geoscience and Energy (IMAGE)

... Knapp (Hess Corporation), and Krista Solvason (CNOOC International) Summary We showcase our subsurface velocity model building and imaging approach...

2023

True Hybrid 3D

Jeroen Hoogeveen, Kristen Berli, Lars Ivar Leivestad, Tor Åkermoen, Geoex MCG

GEO ExPro Magazine

... with associated velocity anomalies. All those issues have been addressed and significantly improved through the hybrid LumiSeisTM solution used to acquire...

2021

Shallow shear wave velocity estimation through the ground stiffness and viscosity

Zhouhong Wei, Rong Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

...Shallow shear wave velocity estimation through the ground stiffness and viscosity Zhouhong Wei, Rong Wang Shallow shear wave velocity estimation...

2024

Stress-Dependent Permeability and Dynamic Elastic Moduli of Reservoir and Seal Shale

Daisuke Katsuki, Anton Padin Deben, Olawale Adekunle, Andrew J. Rixon, Azra N. Tutuncu

Unconventional Resources Technology Conference (URTEC)

... that of the seal shale. Stress-dependent S-wave velocity of both shale samples are shown in Figure 7. The S-wave velocity of reservoir shale increases from 2.381...

2016

Application of acoustic anisotropic time-lapse full-waveform inversion at the Sleipner Field

Sea-Eun Park, Alexey Stovas, Hyeong-Geun Ji, Ju-Won Oh

International Meeting for Applied Geoscience and Energy (IMAGE)

.... We first build an initial anisotropic velocity model using the Backus averaging. Then, we compare the accuracy of velocity models from...

2024

The plug drum effect, or why your microseismic events may not be where you think they are

Guillaume Bergery, Zhishuai Zhang, Jing Du, D. Diller, T. Shuck, B. Fish

Unconventional Resources Technology Conference (URTEC)

.... An accurate velocity model is required to accurately locate microseismic events. An initial velocity model is usually built using a sonic log...

2017

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