NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers

E. Blias

Search and Discovery.com

... ¨ ¸ , 2 © dD ¹ ˆ where D(sin T ) D(cos D ) , H is Thomsen parameter (Thomsen, 1986). From these equations, we can find explicit connection between...

NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers

E. Blias

Search and Discovery.com

... ¨ ¸ , 2 © dD ¹ ˆ where D(sin T ) D(cos D ) , H is Thomsen parameter (Thomsen, 1986). From these equations, we can find explicit connection between...

Fundamentals of Fluid Flow: Part 10. Reservoir Engineering Methods

Michael Golan

AAPG Special Volumes

...), and Craft et al. (1991). EMPIRICAL IPR EQUATIONS Several IPR formulas have been developed to represent the inflow behavior of various types...

Toward elastic free-surface topography with immersed boundaries

Edward Caunt, Rhodri Nelson, Fabio Luporini, Gerard Gorman

International Meeting for Applied Geoscience and Energy (IMAGE)

... differential equations (PDEs), these being ∂t = C : e, ∂t ∂v 1 = — · t, ∂t r and (1) (2) where ⌘ 1⇣ —v + (—v)T . (3) 2 Stress and velocity are given...

Estimating the Effect of Rock Mineral Composition on Reservoir Quality: Application in the Spraberry and Wolfcamp Formations, Permian Basin, Texas and New Mexico

Adewale Amosu, Mohamed Imsalem, Yuefeng Sun

GCAGS Transactions

... is important for petrophysical and rock physics analysis. One method of estimating rock composition is by solving a system of linear equations...

The emergence and impact of scientific machine learning in geophysical exploration

Umair bin Waheed

International Meeting for Applied Geoscience and Energy (IMAGE)

..., such as the Navier-Stokes equations, into the training of the neural network, these models are able to generate solutions that not only match data...

Abstract: Pore-Geometric Controls on Single-Phase Darcy Permeability of Porous Media; #90187 (2014)

David C. Herrick

Search and Discovery.com

... ambiguous in a physical sense. Physical interpretation of permeability The flow equation (1) is only one of several such equations all of which describe...

Abstract: Regular Grids Travel Time Calculation … Fast Marching with an Adaptive Stencils Approach; #90187 (2014)

Zhengsheng Yao, Mike Galbraith, and Randy Kolesar

Search and Discovery.com

... field. Using finite difference to numerically solving this equation produces first arrival traveltimes. AAPG Search and Discovery Article #90187...

Magnetic Disturbance Caused by Buried Casing

William M. Barret

AAPG Bulletin

... of the magnetic elements in different horizontal planes and at different radial distances from the casing head. Curves representing these equations are shown...

A Workflow for Flowback Data Analysis … Creating Value out of Chaos

Obinna Ezulike, Hassan Dehghanpour

Unconventional Resources Technology Conference (URTEC)

..." and steepness of the profile. DRP Simplification Semi-analytical methods (e.g. Laplace transform) are suitable for solving flow equations in existing...

A Numerical Simulation of Microseismic Depletion Delineation for Duverney Oilfield in Canada Using a Fast Approach for a Fully Coupled 3D Quasistatic Poroelastic Modeling

Andrey H. Shabelansky, Kurt T. Nihei, Gian Fradelizio, Sinead Tracey, Dimitri Bevc

Unconventional Resources Technology Conference (URTEC)

..., it requires solving of large 3D linear systems (e.g., Jha and Juanes, 2014; Castelletto et al., 2019; Frigo et al., 2019) with a significant computational...

Effective Fracture Geometry Analysis Based on Data of Well Production, Pressure Gauge, and Strain Change of HFTS-1-III in Eagle Ford Shale

Fatima Almarzoog, Kan Wu, Ge Jin

Unconventional Resources Technology Conference (URTEC)

... tolerance was set to 0.0001. The sequence begins by solving for the equivalent pressure using the equations defined in the previous section...

Inverse scattering theory: Time-dependent perturbation theory for wave scattering in time varying media

Xingguo Huang, Ru-Shan Wu, Pan Zhang, Wenrui Ye, Morten Jakobsen

International Meeting for Applied Geoscience and Energy (IMAGE)

... equation, electromagnetic, acoustic inverse scato tering theory. Numerical solutions in which time-perturbation wave equations are discretized in time...

A Time Chart for Mechanical Analyses by the Pipette Method

W. C. Krumbein

Journal of Sedimentary Research (SEPM)

..._Page 94------------------------- to the depth divided by the time, v = h/t. The right hand sides of the equations may be set equal to each other...

New Mathematical and "Stereograhic Net" Solutions to Problem of Two Tilts--With Application to Core Orientation: DISCUSSION

D. Jerome Fisher

AAPG Bulletin

... 685 23 5. (May) The methods of solid analytics involving direction cosines lead to an elegant derivation of the old equations for solving dip...

Preface

AAPG Special Volumes

... and their justification, and results obtained. Mathematical equations and details of algorithms are kept to a minimum, although obviously some details...

Abstract: Uncertainty Space for Microseismic Event Locations using a Double Difference Algorithm; #90174 (2014)

Timur Mukhtarov

Search and Discovery.com

... normalization. The LSQR algorithm is used for solving the system of double difference equations. Though robust and reliable, it fails to produce realistic...

Abstract: A Framework for Time-Lapse AVO when Contrasts are Large; #90187 (2014)

Shahin Jabbari and Kris Innanen

Search and Discovery.com

.... Reflection coefficients for the baseline and monitor survey are calculated by solving the Zoeppritz equations, once with the target properties...

ABSTRACT: Solving Subsurface Structural Problems Using a Computer, by Duncan M. Witte; #91037 (2010)

Search and Discovery.com

Abstract: Problem Solving with Microfossils: A Brief Review of the Role of Thin-Section Studies in Micropaleontology; #90285 (2016)

Malcolm B. Hart

Search and Discovery.com

...Abstract: Problem Solving with Microfossils: A Brief Review of the Role of Thin-Section Studies in Micropaleontology; #90285 (2016) Malcolm B. Hart...

Three-Dimensional Control

G. E. Anderson

Oklahoma City Geological Society

... methods of solving or approximating these equations have been presented. Any one of the methods chosen can now be applied to the four-way dip information...

Abstract: Migration Velocity Analysis of Incomplete Data Using LSPSM CIGs; #90174 (2014)

Abdolnaser Yousefzadeh, John C. Bancroft, and Gary F. Margrave

Search and Discovery.com

...s seismic inversion requires solving an usually large system of linear equations. The conjugate gradient (CG) method (Hestenes and Steifel, 1952) is an ...

Abstracts: Full Waveform Inversion with Total Variation Regularization; #90173 (2015)

Amsalu Y. Anagaw, Mauricio D. Sacchi

Search and Discovery.com

... is computed by solving the full wave-equation using the finite difference method. FWI is a local gradientbased optimization problem requiring...

Abstract: Drainage Patterns of Subvertical Wells intersecting Naturally Fractured Carbonate Reservoir Layers, by Shaho Bazr-Afkan, Stephan Matthai, and Caroline Milliotte; #120034 (2012)

Search and Discovery.com

Abstract: Low-Frequency Electrical Conduction in Simple Porous Media; #90187 (2014)

David C. Herrick

Search and Discovery.com

... been the basis for virtually all saturation equations used in the petroleum industry for the past seventy years, however it has only an empirical...