Ultrasonic wave velocities measurements and seismic anisotropy at Karari gold deposit: Implications for gold exploration

Andre Eduardo C. M. de Souza, Stephanie Vialle, Andrej Bona

Petroleum Exploration Society of Australia (PESA)

... indicate a remarkable contrast of acoustic impedance between the volcaniclastic host rock and the slightly altered zone, making this seismic...

Quantitative Interpretation Reveals Prospectivity of the Kwanza Shelf, Offshore Angola

Roberto Ruiz, Cyrille Reiser, Avril Burrell, PGS, Jean Afonso Colsoul, Naire Judith Ricardo Cahumba Quenge, ANPG

GEO ExPro Magazine

... attributes were estimated and integrated through the Prospect Scanner workflow to derive elastic attributes such as relative Acoustic Impedance...

A geophysical prior knowledge guided semisupervised deep learning framework for AVA inversion

Lei Zhu

International Meeting for Applied Geoscience and Energy (IMAGE)

... for elastic impedance inversion by seismic forward modeling. Sun et al. 2020 design the velocity inversion framework by wave propagation equations. Sang et al...

Production Focused Seismic … Applying Seismic for Well Productivity Analysis and Completion Optimization; #41212 (2013)

Sean Boerner and Ross Peebles

Search and Discovery.com

... 47 Amplitude - ANISO_PSTM_MIN95DEG) 48 Amplitude – ANISO_PSTM_MIN95DEG_1_SOM5x5 49 Elastic Impedance 50 Lambda Rho 51 Incoherence Probability 52...

New Insights into the North Makassar Basin: Revitalizing the Data Brings New Prospectivity

Marcin Przywara, Jo McArdle, Adriana Sola

Indonesian Petroleum Association

... dataset was inverted using simultaneous sparse spike inversion workflow to create relative volumes of P-Impedance and SImpedance reflectivities...

Quantitative Characterization of Brittle Minerals in Shale Gas Reservoir, Jiaoshiba Area, China; #80556 (2016)

Zhuang Xu, Wanzhong Shi, Qing Ye, Zhiguo Shu

Search and Discovery.com

... Conclusions 3、Inversion and analysis of Poisson's ratio and Young's modulus Pre-stack elastic parameter inversion E=Is2（3Ip2-4 Is2）/ρ（Ip2- Is2） σ...

Integrating Rock Physics and Borehole Seismic to Understand the Elastic Changes Associated with CO2 Injections: a REAL-LIFE Example from Southwestern Wyoming

Gabriela D’Aubeterre

Unconventional Resources Technology Conference (URTEC)

...Integrating Rock Physics and Borehole Seismic to Understand the Elastic Changes Associated with CO2 Injections: a REAL-LIFE Example from Southwestern...

Estimating CO2 Saturation in Subsurface Geologic Reservoirs Using Pre-stack Seismic Attributes and Machine Learning

Papa Owusu, Rui Zhang

Carbon Capture, Utilization and Storage (CCUS)

...% feldspar (Lu et al., 2012). The elastic properties for the baseline and each CO2 substituted case were used to compute prestack attributes: intercept...

Seismic prediction technology for shale gas double sweet spots: A case study of the Ordovician Ulalik Formation in the western margin of the Ordos Basin, China

Yutan Dou, Fei Li, Guanghong Du, Mengbo Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

..., Poisson's ratio, shear wave velocity, without considering the influence of shear impedance and Lame impedance are obtained by pre-stack wave velocity...

Vp/Vs Ratio from Three Component Zero Offset: An Additional Tool for Pressure Prediction Ahead of the Bit

Carlos Planchart, Carlos Vargas, Raul Cova, Alexander Palacios

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... component VSP’s measure the full elastic wavefield, and allows compressional and shear images to be obtained. This allows the surface seismic data...

Unlocking Shale Potential by Including Seismic Data into Drilling and Production Decisions

Marianne Rauch, David Langton, Josh Bedell, Matt Mayer

Unconventional Resources Technology Conference (URTEC)

... is challenged due to near surface heterogeneities, chaotic geology, low impedance contrasts within the reservoirs and the ever-increasing surface culture...

Reservoir Characterization and Exploration Assessment of Tight Gas Sands related to Unconventional Concepts. Queen City Formation, Burgos Basin, Mexico; #41264 (2014)

Silvano D'Alessio, Mario A. Porras, and Tsuyoshi Arikuma

Search and Discovery.com

... and attributes, generated cross-plotting P Impedance - S Impedance as part of the elastic inversion AVO-AVA, searching for sweet spots related to rock...

Pilot Phase of the Aguada Federal Block, Black-Oil Window

Osvaldo Nielsen, David Curia, Pablo Pateti, Javier Caniggia, Alexis Ortega, Morten Slinde

AAPG Special Volumes

... sampling, long offsets, and wide azimuth. The pre-stack inversion yielded three elastic volumes: density, P and S impedance. The next step...

Quantitative FWI characterization of reservoir properties at the CMC Newell County Facility

Qi Hu, Matthew Eaid, Scott Keating, Kristopher Innanen, Xiaohui Cai

International Meeting for Applied Geoscience and Energy (IMAGE)

... isotropic-elastic wave equation (Pratt, 1990): A is impedance matrix, u is the displacement wavefield, and f is the source term. The Lagrangian...

Geosteering Drilling Technology of Ultra-long Horizontal well in Chang 7 Unconventional Reservoir of Qingcheng Oilfield

Wubin Gao, Bo Wang, Bo Chen, Liangbing Cheng, Zhangbin Feng

Unconventional Resources Technology Conference (URTEC)

...) seismic data to obtain elastic wave impedance, P-and S-wave impedance, density, Poisson's ratio and other parameters related to lithology and fluid bearing...

Modeling frequency attenuation due to gas in sandstone and carbonate gas reservoirs

Saleh Almeshari

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Brine Gas Top Reservoir Method Well log data from four wells were used to understand the elastic properties of the reservoir. Gassmann fluid...

Visualization Technology in Quantitative Reservoir Characterization --- Application to a Carbonate Reservoir

Joanne Wang, Duane Dopkin

GCAGS Transactions

... instantaneous attributes, AVO (Amplitude Versus Offset) attributes, impedance attributes and their derivatives (e.g., Lambda-Rho, Mu-Rho), spectral...

Optimized characterization workflow for naturally fractured reservoirs using seismic anisotropy attributes in the Middle Magdalena Valley basin, Colombia

Oscar Moreno, Enrique Casaña, Luis Figuera, Iván Higuera, Diego García, Jorge Acosta, Benjamin Roure

International Meeting for Applied Geoscience and Energy (IMAGE)

... well in settings where Naturally Fractured Reservoirs (NFR), could be related to impedance contrasts or inferred from larger and widely spaced faults...

Geophysical in-situ stress prediction method based on ADS method

Min Zhang, Xia Wang, Ya Shen, Jinrong Yang, Yintao Cai, Liping Qian, Feng Li, Jianhua Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... and property modeling techniques are introduced to solve the problem that the rock matrix elastic modulus cannot be calculated from seismic data...

It's the Fluids That Matter: Solutions to Reservoir Property Prediction

Andrew Long, Folke Engelmark

Petroleum Exploration Society of Australia (PESA)

... a space empirical relationships proposed over the such that the fluid can occupy all the years to relate elastic moduli, porosity and pore space (1...

Abstract: Re-establishment of Gradient in Frequency-domain Elastic Waveform Inversion; #90174 (2014)

Ju-Won Oh, Dong-Joo Min, and Felix J. Herrmann

Search and Discovery.com

...Abstract: Re-establishment of Gradient in Frequency-domain Elastic Waveform Inversion; #90174 (2014) Ju-Won Oh, Dong-Joo Min, and Felix J. Herrmann...

Assessing properties of internal multiples for different geologies

Paul Ras, Mikhail Davydenko, Eric Verschuur

International Meeting for Applied Geoscience and Energy (IMAGE)

...: primary reflection (left) and transmission coefficients (center) for model 1 From acoustic impedance contrasts we compute the primary reflection...

Prestack and poststack seismic amplitude interpretation to support unveiling oil potential of a highly stratigraphic reservoir

S. Mata García, A. Carrillat, W. Torres, P. Cisneros, V. Lucas, P. Bermeo, P. Gonzalez, J. Rodas, C. Miller, P. Zamora, K. Luzuriaga, J. Garrido

International Meeting for Applied Geoscience and Energy (IMAGE)

... are analyzed, ranked, selected, and combined for their ability to identify reservoir sandstones in a robust and quantitative way. Elastic properties from...

An Integrated Workflow for Shale Gas in the Western Canadian Sedimentary Basin: Surface Seismic to Stimulation, by David I. Close, Simon Stirling, David Cho, Frederik Horn, #40569 (2010)

Search and Discovery.com

The Application of Full Azimuth 3D Seismic Fracture Detection Technology in the Prediction of Favorable Reservoirs within the Shengbei 5 Well Area Tight Sandstone Region; #41226 (2013)

Xiang Guo, Jianbin Ran, Xiaowei Yu, Zhengtao Hu, Zhang Yuan, Zhang Jinxue, and Fulei Li

Search and Discovery.com

... the geology, drilling and well logging data, and the use of elastic inversion to invert the Lame constant and shear modulus to build geologic, mechanical...