AAPG Memoir 76, Chapter 13: Consolidation State, Permeability, and Stress Ratio as Determined from Uniaxial Strain Experiments on Mudstone Samples from the Eugene Island 330 Area, Offshore Louisiana

Beth B. Stump and Peter B. Flemings

AAPG Special Volumes

.... Crossplot of porosity and compressional velocity data is used to determine acoustic formation factor (f) and matrix velocity (Δt ma) (equation 11...

What Broke? Microseismic analysis using seismic derived rock properties and structural attributes in the Eagle Ford play

Robert Meek, Bailo Suliman, Robert Hull, Hector Bello, Doug Portis

Unconventional Resources Technology Conference (URTEC)

... logs such as s-wave velocity using various other well logs such as gamma ray, p-wave velocity, density, and resistivity and used for rock property...

A Non-Destructive Core Analysis Technique Using X-Rays

Seymour R. Baker, Gerald M. Friedman

Journal of Sedimentary Research (SEPM)

... split at the orientation represented on the radiograph. To measure this distortion in sediment position more accurately, a linear equation was derived...

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

... directions of azimuthal anisotropy caused by the coal’s fracturing system. Two modeling techniques (using ray tracing and reflectivity methods) predict...

Seismic Line Across Wind River Thrust Fault, Wyoming: ABSTRACT

William L. Basham, Walter F. Martin

AAPG Bulletin

... related to the high-velocity Precambrian granite. The effects of the velocity variations can be analyzed by ray tracing and by studying the near offset...

Abstract: High-Accuracy Relative Event Locations using a Combined Multiplet Analysis and the Double-Difference Inversion; #90174 (2014)

Fernando Castellanos and Mirko van der Baan

Search and Discovery.com

...), which is intended to reduce the effect of unknown velocity heterogeneities along the source-receiver ray paths specially when dealing with dense...

CLINTON SAND RESERVOIR CHARACTERISTICS ESSENTIAL TO SUCCESSFUL WATERFLOODING--A PROGRESS REPORT

Leo A. Schrider, Petroleum Engineer, Morgantown Petroleum Research Laboratory, Bureau of Mines, U. S. Department of the Interior, Morgantown, West Virginia

Ohio Geological Society

... of this study, x and y refer to the x and y map coordinates and z to the formation depth, producing characteristics, or reservoir...

Determination of the Laminar, Structural and Disperse Shale Volumes Using a Joint Inversion of Conventional Logs; #41944 (2016)

Ambrosio Aquino-López, Aleksandr Mousatov, Mikhail Markov, Elena Kazatchenko

Search and Discovery.com

... A. Track 1: Gamma ray; 2: Horizontal electrical resistivity; 3: P-wave velocity; 4: S-wave velocity; 5: Bulk density and 6: Neutron porosity. Inversion...

Electrical and flow properties of highly heterogeneous carbonate rocks

Charlotte Garing, Linda Luquot, Philippe A. Pezard, Philippe Gouze

AAPG Bulletin

..., different values of f) for the saturating fluid. The formation factor F was calculated using a linear regression of f plotted versus f (equation 2...

An Examination of Froude-Supercritical Flows and Cyclic Steps On A Subaqueous Lacustrine Delta, Lake Chelan, Washington, U.S.A.

Aaron T. Fricke, Benjamin A. Sheets, Charles A. Nittrouer, Mead A. Allison, Andrea S. Ogston

Journal of Sedimentary Research (SEPM)

... the region of log-linear decay, and z is the difference in depth between Ao and Az. Results Delta and Basin Morphology The bathymetric survey...

Applied Seismic Reservoir Characterization to Distinguish Coals and Sandstone Reservoir of Southwest Betara Field, South Sumatra Basin, Indonesia; #50761 (2012)

M. N. Alamsyah, Bambang W. Handono, and Teguh Fitrianto

Search and Discovery.com

... log data. The equation used is GRI or Gamma Ray Index, otherwise known as Pseudo Gamma Ray corrected. The assumption of GRI equation is the log curve...

3D Refraction Statics Integrated with Surface-Consistent First-Break Picking, Iterative Inversion, and 3D Visualization

Search and Discovery.com

... in GLI3D software by Hampson and Russell (1984). Although the name of GLI (Generalized Linear Inverse) does not strictly apply to this iterative...

Taking Advantage of RTM Surface Offset Gathers for Iterative Salt Modeling and Subsalt Reservoir Image Enhancement

Search and Discovery.com

Applications of Kirchhoff Least-Squares Migration: Towards Reservoir Imaging; #42183 (2018)

Francesco Perrone, Graham Roberts, Lorenzo Casasanta, Andrew Ratcliffe, Arash Jafargandomi, Karen Purcell

Search and Discovery.com

.... In this process, the primary reflections are modeled as linear functions of the subsurface reflectivity. The mathematically rigorous procedure...

Optimization method of geometry and application based on Fresnel Gaussian beam forward modeling

Yang Jing, Yu Fuwen, Xu Xiaokun, Lv Shuang, Wang Xiangqian

International Meeting for Applied Geoscience and Energy (IMAGE)

... developed a forward method combining ray theory with wave equation [1].In 2006, Li Ruizhong introduced the advantage of Gaussian beam method...

Kriging-based surrogate models for convergence acceleration of Markov chains: An example of magnetotellurics-dix joint inversion

Alejandro Quiaro, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... a reduced model space, where the velocity-resistivity covariance is depth-dependent. The model fields reconstructed with kriging are generally smooth...

TTI Wave-equation Migration of A 3-D Canadian Foothills Dataset

Search and Discovery.com

...TTI Wave-equation Migration of A 3-D Canadian Foothills Dataset TTI Wave-equation Migration of A 3-D Canadian Foothills Dataset Richard Bale...

High-resolution ultrasonic measurements as proxies to resolve clastic reservoir heterogeneity in a salt-cemented gas reservoir

Claudio Miro Filomena, Harald Stollhofen, Kees van Ojik

AAPG Bulletin

.... (1980) suggest almost linear p-wave velocity to porosity relations (Vernik and Nur, 1992; Dvorkin and Nur, 1998). However, the direct sonic velocity...

Assessing mineral composition and permeability of a shale seal

Roman Beloborodov, Marina Pervukhina, Maxim Lebedev, Juerg Hauser

Petroleum Exploration Society of Australia (PESA)

..., we first establish a generalised linear model (GLM) relating smectite content available in the form of XRD measurements to a number of rock physics...

GeoMind: An intelligent earth model building tool

Saleh Al Saleh, Ewenet Gashawbeza, Mustafa Marzooq, Hussam Banaja, Husain Al Shakhs, Jianwu Jiao

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the 3D prestack depth migration with the GeoMind velocity model and wave equation migration method. Second International Meeting for Applied...

Uncertainty analysis of full-waveform velocity inversion

Kai Yao, Han Yin, Lian Duan, Yu Zhang, Feng Chen, Huili He, Mourad Khdhaouria, Lamia Rouis

International Meeting for Applied Geoscience and Energy (IMAGE)

...Uncertainty analysis of full-waveform velocity inversion Kai Yao, Han Yin, Lian Duan, Yu Zhang, Feng Chen, Huili He, Mourad Khdhaouria, Lamia Rouis...

Seismic Brittleness Index Volume Estimation from Well Logs in Unconventional Reservoirs; #80381 (2014)

Roderick Perez

Search and Discovery.com

... ray (GR) seismic cube using probabilistic neural network (PNN). I combined these seismic attributes using the non-linear relationship developed from...

Effect of the Initial Water Saturation on the Elastic Properties of

Marisa Rydzy, Michael Batzle, Keith Hester, Jim Stevens, James Howard

Unconventional Resources Technology Conference (URTEC)

... saturation resulted in significant changes in velocities. At high initial water saturations (~80%), the velocity increased linearly with increasing hydrate...

Iterative Modeling and Imaging of Seismic Data in Depth to Help Delineate Petroleum Reservoirs in the Utah Overthrust Belt

Alvin K. Benson

Utah Geological Association

... directions, seismic data must be imaged in depth. Subsurface velocity models necessary to form these accurate pictures can be obtained from the data through...

Abstract: Comparative Study on 2D Microseismic Source Location with Synthetic Seismograms Recorded by Borehole- and Surfacereceiver Arrays; #90224 (2015)

Anton Biryukov, Simon G.E. Harvey, and Giovanni Grasselli

Search and Discovery.com

... in [8]. A velocity gradient ranging from 3500 m/s at surface to approximately 4700 m/s at depth has been applied to the succession of limestone units...