Abstract: Fracture Detection Via Azimuthal Analysis of Seismic Data: Snake Oil or silver Bullet?; #90187 (2014)

Mike Perz, Peter Cary, Xinxiang Li, and Satinder Chopra

Search and Discovery.com

... of these issues. The AVAZ technique is sensitive to two Thomsen parameters,  (v) and \(v) (parameters describing layer-localized shear wave splitting...

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)

.... The Thomsen trick allows us to convert S-wave anisotropy parameters to their P-wave counterparts, enabling accurate S-wave propagation. Under the assumption...

2D isotropic and vertical transversely isotropic RTM using SEG Hess VTI Model

Richa Rastogi, Abhishek Srivastava, Monika Gawade, Nithu Mangalath, Laxmaiah Bathula, Bhushan Mahajan, Suhas Phadke

International Meeting for Applied Geoscience and Energy (IMAGE)

... moveout velocity, ε and δ are Thomsen’s anisotropic parameters. Equations (3) and (4) are implemented using regular grid finite difference method which...

An immersed boundary topography approach for TTI acoustic propagation

Edward Caunt, Rhodri Nelson, Tim MacArthur, Fabio Luporini, Gerard Gorman

International Meeting for Applied Geoscience and Energy (IMAGE)

... are Thomsen anisotropy parameters, s is a constant parameter used to stabilise the numerical scheme and prevent SV wavefront triplications...

Chapter 9: Microstructure and Anisotropy in Gas Shales

Carl H. Sondergeld, Chandra S. Rai, Mark E. Curtis

AAPG Special Volumes

...). The velocities were used to compute the Thomsen anisotropic parameters, ε, γ, and δ (Thomsen, 1986). The results for P-wave, ε, and S-wave, γ...

South Halfway 3D: An example of a challenging onshore acquisition and subsequent processing and a unique way of performing a prestack elastic inversion on a difficult dataset

Marianne Rauch, Doug Brost, Hassan Odhwani, Aravind Nangarla, Adriana Gordon

International Meeting for Applied Geoscience and Energy (IMAGE)

... and updating the Thomsen anisotropic parameters ε (epsilon) and δ (delta) are accomplished using well calibration. This process consists of first...

The Magic of Depth Imaging in a Complex Geological Setting … A Case Study from Upper Indus Basin (Pakistan), #42330 (2018).

Syed Firasat Shah, Musharaf Sajjad

Search and Discovery.com

... as a simulated 3D dataset to generate a 3D velocity field to estimate Thomsen’s parameters and perform TTI-RTM. The mapping resulted in a completely different...

Application of distributed fiber optic and borehole-surface jointly acquired seismic data in high-resolution processing of conventional seismic

Zhanqing Yu, Cheng Wang, Miao Kun

International Meeting for Applied Geoscience and Energy (IMAGE)

... the early velocity measurement and horizon calibration to the extraction of attenuation coefficient and anisotropic parameters and high-precision imaging...

Observations of Azimuthal Anisotropy in Prestack Seismic Data, #41572 (2015).

David Gray

Search and Discovery.com

... of the anisotropic variation in conjunction with the AVO variation in the data. This and more conventional methods are used to demonstrate the large degree...

3-D AVO Analysis and Modeling Applied to Fracture Detection in Coalbed Methane Reservoirs

Antonio C.B. Ramos, T.L. Davis

Rocky Mountain Association of Geologists

... and ratios from laboratory measurements. Anisotropic parameters were derived using expressions derived by Thomsen (1993) in his model for aligned cracks...

Exploration of Deepwater Regions Offshore India

Roberto Fainstein, Rajesh Kalra

International Meeting for Applied Geoscience and Energy (IMAGE)

... such that velocity updates are done with large-scale length. Choice of scale length depends on lateral and vertical (anisotropic) velocity variations. For further...

First-arrival traveltime and slope tomography in tilted anisotropic media with undulant topography

Xiaole Zhou, Serge Sambolian, Gaoshan Guo, Stephane Operto, Haiqiang Lan, Ling Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... to TTI acoustic media, where the model space is parameterized by four anisotropic parameters (vv , ε, δ , θ ). Preliminary synthetic tests with complex...

Stress-Dependent Flow, Mechanical, and Acoustic Properties for an Unconventional Oil Reservoir Rock

Gang Han, Marte Gutierrez, Peter Schmitz

Unconventional Resources Technology Conference (URTEC)

...’s modulus, acoustic velocities, six stiffness coefficients, and Thomsen anisotropy parameters are measured under different levels of loading and confining...

ABSTRACT: Effects of Heating Rates of Hydrocarbon Generation and Occurrence, by M. Arif Yukler and Erik Thomsen; #91022 (1989)

Search and Discovery.com

Abstract: Absolute Salt Dynamics from Excess Maturity and Thermal Anomalies, by R. O. Thomsen, I. Lerche, and J. A. Korstgard; #91004 (1991)

Search and Discovery.com

Abstract: Predicting Porosity in a Saudi Arabian Carbonate Reservoir Using Geologic Constraints Integrated With 3-D Seismic and Well Data, by R. Jeffery and M. Thomsen; #90956 (1995).

Search and Discovery.com

Abstract: 3 Dimensional Stratigraphic Modelling of the Northern North Sea, by T. Jacquin and M. Thomsen; #90923 (1999)

Search and Discovery.com

Abstract: Three-Dimensional Simulation of Carbonate Platform Growth -- A Preliminary Forward Model, by Pavel S. Galperin, Rene O. Thomsen, Steven L. Dorobek, and Veit J. Matt; #90914(2000)

Search and Discovery.com

Application of interactive convolutional neural network micro-fracture prediction technology based on prestack depth migration data in deep shale gas reservoirs

Xiaolan Wang, Furong Wu, Junfeng Liu, Dianguang Zang, Xiao Yang, Yangjing Li, Xiaoyan Cheng

International Meeting for Applied Geoscience and Energy (IMAGE)

... Thomsen parameters ε, δ, γ, and the formation dip angle θ. The reasonable establishment of these parameters plays a decisive role in correctly describing...

Seismic Guided Drilling (SGD*): A New Technology for Look-Around and Look-Ahead of the Bit Prediction During Drilling

Nader C. Dutta, Sherman Yang, Jianchun Dai, Aranya Bhaduri, S. Chandrasekhar, Firoze Dotiwala, C.V. Rao

Indonesian Petroleum Association

... template, that provides “upper and lower” bound to velocities , (3) accounting for anisotropic wave propagation by well known techniques such as Thomsen...

Key Aspects of Multi-Azimuth Acquisition and Processing

James Keggin, Ted Manning, Walter Rietveld, Chris Page, Eivind Fromyr, Roald van Borselen, Mazin Farouki

Indonesian Petroleum Association

... the quality of conventional single azimuth surveys, in particular azimuth regularization and azimuthally anisotropic pre-stack time migration. The question...

An Experimental Investigation of the Anisotropic Dynamic and Static Properties of Eagle Ford Shales

Yang Wang, De-Hua Han, Luanxiao Zhao, Abhijit Mitra, Samir Aldin

Unconventional Resources Technology Conference (URTEC)

... at crack surfaces or grain boundaries. Hence, the statically derived parameters are sensitive to the anisotropic stress state and load-unload history...

Developing an Exploration Tool in a Mature Trend: A 3D AVO Case Study in South Texas

Mark E. Gregg, Charles T. Bukowski, Jr.

Houston Geological Society Bulletin

... and Thomsen, 1994 and Hilterman et al., 1998). Usable data were generated at incident angles in excess of 40 degrees. CDP gathers through the two test wells...

Abstract: The Application of The Nearly Optimal Sponge Boundary Conditions for Seismic Wave Propagation in Poroelastic Media; #90171 (2013)

Jingyi Chen and Ralph Phillip Bording

Search and Discovery.com

... set of parameters to minimize this energy metric. We apply this optimal scheme to the numerical simulation of seismic wave propagation in 2-D...

Abstract: The Application of The Nearly Optimal Sponge Boundary Conditions for Seismic Wave Propagation in Poroelastic Media; #90171 (2013)

Jingyi Chen and Ralph Phillip Bording

Search and Discovery.com

... set of parameters to minimize this energy metric. We apply this optimal scheme to the numerical simulation of seismic wave propagation in 2-D...