Rock-physics Models for Gas-hydrate Systems Associated with Unconsolidated Marine Sediments

Diana Sava, Bob Hardage

AAPG Special Volumes

... (S)-wave velocities, and to analyze compressional-wave (PP) and converted-shear-wave (PS) reflectivity at the base of hydrate stability zones. Elastic...

From raw seismic data to quantitative interpretation via cloud-based FWI

Henry A. Debens

Australian Energy Producers Journal

... acquired at different azimuths. (a) 115 Hz FWI acoustic reflectivity model using latest survey; (b) onboard raw fast-track pre-stack time migration using...

Determining the Coal Bed Methane Distribution Based on Amplitude Variation With Offset (AVO) Analysis and Seismic Inversion: Case Study of Sumatra Basin

Padmadi Heru Wibawa, Abd. Haris, Suprajitno M.

Indonesian Petroleum Association

...). Specific joint impedance inversion, whereby both P and S reflectivity, are inverted by layer. The technique provides improved noise immunity, computational...

VSP Guided Reprocessing and Inversion of Surface Seismic Data

R. Gir, Dominique Pajot, Serge Des Ligneris

Southeast Asia Petroleum Exploration Society (SEAPEX)

.... The underlying assumption in VSP guided reprocessing is that both traces share the some reflectivity series and have a wide common frequency band...

Full-waveform inversion and FWI imaging for land data

James Sheng, Cristina Reta-Tang, Faqi Liu, Alfredo Vzquez Cant, Alejandro Cabrales Vargas

International Meeting for Applied Geoscience and Energy (IMAGE)

...-waveform inversion (FWI) for imaging and utilize the high-resolution FWI velocity model to estimate reflectivity. The FWI images show enhanced features...

What Does It Mean When Bottom Simulators Are Black Swans?

Karyna Rodriguez, Neil Hodgson, Julia Davies, Searcher Seismic, Discover Geoscience

GEO ExPro Magazine

... reservoirs which have high reflectivity, and distinctive AVO character. Additionally, the seismic response within the hydrate appears muted...

Introducing stochasticity into CNN-based property estimation from angle-stack seismic

Haibin Di, Tao Zhao, Aria Abubakar

International Meeting for Applied Geoscience and Energy (IMAGE)

... from the predicted DENS and DTC volumes and derive the reflectivity at zero-angle (Figure 5). In addition to the good match between the machine...

Prediction and attenuation method of surface-related multiple based on characteristic reflector

Jian Xiang, Huazhong Wang, Chengliang Wu

International Meeting for Applied Geoscience and Energy (IMAGE)

... proposes a prediction and attenuation method of SRMs based on characteristic reflectors. The proposed method uses background velocity and reflectivity...

Lithology Discrimination and Pore-Fluid Detection Using 3D Pre-Stack Simultaneous Inversion: A Case Study at Gumai Formation, Jambi Sub-Basin, South Sumatra

Widia Anggraeni, Mawar Indah Nursina, Andri Syafriya, Bagus Sapto Mulyatno, Muh Sarkowi

Indonesian Petroleum Association

... into reflectivity. Further, reflectivity from different angle stacks are simultaneously inverted to obtain P-impedance (Zp), S-Impedance (Zs) and Density (ρ...

Comprehensive Fracture Evaluation Using Wireline Borehole Imager and Array Acoustic Tools

Cahyo Nugroho, Gunawan Sucahyo, Adriaan Bal, Pipin Ariyanto, Wilfred Samosir, Edison Nadeak

Indonesian Petroleum Association

..., classification of open and closed fractures. From the array acoustic tool, the data was processed for Stoneley reflectivity and permeability profile...

Recursive Inversion and Attribute Analysis of 3D Seismic Data Over a Four-Way Dip Structure, Gulf of Thailand

S. Thanatit, S. Ronghe

Indonesian Petroleum Association

... with extracted attributes. The reflection strength display (Figure 7-B) shows hydrocarbon-induced high reflectivity over the crestal portion of the anticline...

Phase Decomposition for Predicting Carbonate Reservoir Properties

Umberto Barbato

Unconventional Resources Technology Conference (URTEC)

... comprises of thin layers that are below seismic resolution and are detected or resolved through sparse layer reflectivity inversion to enhance resolution...

Practical Application of Adaptive Least-Squares Reverse Time Migration (LSRTM) to Advance Field Development and Uncover New Reserves in the Subsalt Provinces

Chong Zeng, Shuqian Dong, Zhaohong Wu, Jean Ji, Darrell Armentrout, Bin Wang

GCAGS Transactions

...:10.3997/2214-4609.20141449. Duquet, B., K. J. Marfurt, and J. A. Dellinger, 2000, Kirchhoff modeling, inversion for reflectivity, and subsurface...

Passive Margins: Shelf-to-Basin Correlations off Eastern Canada: Developing a Seismic Stratigraphic Framework in the Northern Newfoundland Basin

Karen J. Meador, James A. Austin, Jr., and Donald F. Dean

AAPG Special Volumes

..., which were hand-digitized an resampled at 0.62-m (2-ft) intervals. Then, a normal-incidence reflectivity log (Figure 2c) in units of both travel-time...

Seismic Reflectivity Studies on Northwestern African Continental Shelf: Strait of Gibraltar to Mauritania

Robert L. McMaster , Thomas P. Lachance

AAPG Bulletin

...Seismic Reflectivity Studies on Northwestern African Continental Shelf: Strait of Gibraltar to Mauritania Robert L. McMaster , Thomas P. Lachance...

Abstract: Azimuthal Fourier Coefficients: A Simple Method to Estimate Fracture Parameters; #90174 (2014)

Jon Downton and Benjamin Roure

Search and Discovery.com

... reflectivity data at a particular angle of incidence, we obtain Fourier Coefficients (FCs) that parsimoniously describe the AVAz and anisotropy...

Rejuvenation of a Mature Field Through Application of a Unique Frequency Enhancement Technology, by Marcus L. Countiss, #40076, (2003)

Search and Discovery.com

Direct probabilistic inversion for facies with different elastic depth trends

Ask Jakobsen

International Meeting for Applied Geoscience and Energy (IMAGE)

... for facies/lithologies using Aki-Richard’s reflectivity model with seismic angle gathers as input, see Hansen et. al. (2018) and Jakobsen & Hansen (2019...

Kerogen Maturity and Type by Reflected Light Microscopy Applied to Petroleum Exploration

Wallace G. Dow, Dolores I. O'Connor

Special Publications of SEPM

... prior to examination to remove surface moisture which could affect reflectivity measurements. Reflectance Measurement The samples are studied...

ABSTRACT: Petrography of the Coal from the Oranovo-Simitli Basin, Bulgaria

Anton Sotirov, Jordan Kortenski

The Society for Organic Petrology (TSOP)

... and (x300) for the fluorescence light. Minimum 500 points of every sample were counted. The reflectivity of the huminite is measured with monochromatic...

Poststack fracture prediction technique based on phase decomposition

Li Hai Liang, Pan Hui, Gao Jian Hu, Gui Jin Yong

International Meeting for Applied Geoscience and Energy (IMAGE)

... , t ) , we can obtain a two-dimensional function that represents the variation of reflectivity amplitude with phase and time. f2 X...

AVA attribute estimation from misaligned seismic gathers using U-Net

Ammar Ghanim, Ricard Durall, Norman Ettrich

International Meeting for Applied Geoscience and Energy (IMAGE)

... the intercept (𝑦it ) and gradient (𝑦gd) AVA attributes. These ̅ ̅ attributes are then utilized to derive reflectivity series (𝑟) via the Shu...

Predicting Pore-Pressure From On-shore Seismic Data in the Delaware Basin

Marianne Rauch-Davies, Bob Schmicker, Steve W. Smith, Sam Green, Jeremy J. Meyer

Unconventional Resources Technology Conference (URTEC)

... reflectivity and not biased by any interpolation assumptions. Secondly, the inversion approach was calibrated using a set of facies-dependent elastic...

Poor Man's Synthetic Seismogram

Andrew Nelson

Petroleum Exploration Society of Australia (PESA)

..., such as has been done w ith the velocity and reflectivity series in the last two charts in • Incorporatio n of checkshot data • Samp li ng...

Extended Abstract: Large-Scale Depositional Characteristics of the Wilcox Formation, Central Gulf of Mexico Deepwater

Paul K. Wieg

GCAGS Transactions

... the “transparent” Wilcox interval, there is mappable reflectivity, including a continuous event of moderate amplitude which is presumed to correspond to the “Big...