Estimating Parameters for Hierarchical Permeability Correlation Models

Zhenxue Dai, Robert W. Ritzi Jr., David F. Dominic

Special Publications of SEPM

...-squares criterion, along with parameter prior information and other weighted constraints, is used as the objective function of the inverse problem, which...

Glacially Influenced Submarine-channel Sedimentation in the Yakataga Formation, Middleton Island, Alaska

Carolyn H. Eyles

Journal of Sedimentary Research (SEPM)

... Geotechnique, University of Illinois Press, Urbana, Illinois, p. 189-220. NAYLOR, M. A., 1980, The origin of inverse grading in muddy debris flow...

An enhanced method for evaluating the static connectivity of reservoirs using pressure coefficient–depth plots

Geng Qian, Haifeng Yang, Dayong Guan, Jinghan Wang, Junpei Yue, and Meng Zhao

AAPG Bulletin

... Inversely Proportional Function This study investigates the pressure coefficient and its inverse relationship with depth across fluid units, comparing...

Mitigating cycle skipping in FWI through preconditioned multidimensional optimal transport

James McLeman, Tim Burgess, Tom Rayment, Victor Chua

International Meeting for Applied Geoscience and Energy (IMAGE)

...., 2021), which use estimates of the inverse Hessian operator. The L2 norm is computed sample by sample and hence is not well suited to measure time...

DAS noise attenuation using wavelet stack

Zhou Yu, Zhaojun Liu, Ge Zhan, Peng Cheng, Bin Wang, Weihong Fei

International Meeting for Applied Geoscience and Energy (IMAGE)

...-weighted areal geophone arrays based on SNR ratios by applying a series of array filters with known attenuation levels to the raw data. Unlike surface...

Seismic Data Acquisition and Processing in the Midway-Sunset Oil Field

C. R. Willingham, A. S. Wylie Jr., D. J. Underwood

Pacific Section of AAPG

... filters and random noise rejection algorithms. However, there was no effective manner to deal with the crooked line problem in the presence of complex...

A Novel Method for Simultaneous Determination of Relative Permeability and Capillary Pressure from Corefloods (Gas/CO2-Water Systems)

Nassim Hemmati, Sara Borazjani, Alexander Badalyan, Luis Genolet, Aron Behr, Abbas Zeinijahromi, Pavel Bedrikovetsky

Australian Petroleum Production & Exploration Association (APPEA) Journal

..., inverse solution, low-salinity, porous media, relative permeability, steady-state-transient test, two-phase flow. Introduction Accepted: 6 March 2023...

Bridging the gap: Deep learning on seismic field data with synthetic training for building Gulf of Mexico velocity models

Stuart Farris, Robert Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

... as an approximator to the inverse operator of the seismic field experiment. The task of seismic velocity inversion can be stated as a mathematical objective...

Gradient-regularized physics informed neural networks for acoustic wave simulation

Shobhit Mishra, Bharath Shekar

International Meeting for Applied Geoscience and Energy (IMAGE)

... invariant, making them ideal tools for surrogate modeling in inverse problems. Despite the promise, PINNs often fail to converge and struggle...

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

Lei Zhu

International Meeting for Applied Geoscience and Energy (IMAGE)

... to implement the inversion and forward process. First, the INN defines the inverse process. The role of the convolutional layers in INN is to approximate...

Errors in Extrapolation of Experimental Kinetic Parameters to Organic Geochemical Systems: GEOLOGIC NOTES

Lloyd R. Snowdon

AAPG Bulletin

...) that the Arrhenius relation between rate (or time) and temperature behaves ideally, that is, the log-inverse time versus inverse-temperature curve...

Fast, Fully Probabilistic, Nonlinear Inversion of Seismic Attributes for Petrophysical Parameters; #120047 (2012)

Andrew Curtis, Mohammad Shahraeeni, and Gabriel Chao

Search and Discovery.com

... data. The petrophysical inverse problem is significantly non-linear, and due to the large number of data points in a seismic cube we need to apply fast...

The Relationship of Gravitational and Magnetic Anomalies to the Process of Granitization

L. N. Elanskii Л. Н. Еланскии

Petroleum Geology: A Digest of Russian Literature

... of appearance of inverse polarity was proposed by L. D. Bersudskii (2). Applying this interpretation to the concrete geologic conditions of the Russian...

Wavelet Processing

Lee Lu

Indonesian Petroleum Association

..., The effects of the phase distortion of the recording instrument filters and the advantages of removing this distortion, October 1977, preprint for talk...

Application of Wave Equation Tomography in Frontier Areas

Tien-when Lo, Guy W. Purnell

Indonesian Petroleum Association

...., 1985, Imaging of discontinuities in the inverse scattering problem by inversion of a causal generalized Radon transform: J. Math. Phys., 26, 99-108...

Simultaneous inversion of velocity and angle-dependent reflectivity

Nizar Chemingui, Yang Yang, Jaime Ramos-Martinez, Guanghui Huang, Dan Whitmore, Sean Crawley, Elena Klochikhina, Sriram Arasanipalai

International Meeting for Applied Geoscience and Energy (IMAGE)

... reflectivity parameterization of the wave equation (Whitmore et al., 2021) and an efficient scale separation of the FWI gradient through inverse scattering...

Determination of Well Productivity Using Pump Downtime Data

Jeff Spath

Indonesian Petroleum Association

.... The method is an inverse solution as is found in conventional well test interpretation. A theoretical or model pump runtime is computed assuming the two...

Correlational Relationship of Parameters of the Composition of Oils of Various Genetic Types

N. S. Shulova

Petroleum Geology: A Digest of Russian Literature

... to the amount of methane hydrocarbons in the fraction that boils up to 200°C. See Table 3. It has an inverse relationship to the amount of methane-naphthene...

Enhancing reservoir simulation workflows by coupling a GPU-accelerated full-physics simulator with a Fourier neural operator-based surrogate model

Karthik Mukundakrishnan, Klaus Wiegand, Vidyasagar Ananthan, Daniel Kahn, Dmitriy Tischekin, Marcos Kajita, Clement Etienam

International Meeting for Applied Geoscience and Energy (IMAGE)

... with boundary 𝜕𝐷. Neural operators learn the inverse of ℒ that map 𝑓 to 𝑢 using a kernel convolution operator 𝜅 like the integral operator of Greens...

Trishear Kinematic Modeling of Structures, with Examples from the Neuqun Basin, Argentina

Richard W. Allmendinger, Toms Zapata, Ren Manceda, Francisco Dzelalija

AAPG Special Volumes

... on the thickness of the competent units in the section. Allmendinger, R. W., 1998a, Inverse and Forward numerical modeling of trishear fault-propagation folds...

Abstract/Excerpts: Constraining Thermal Histories from Limited Data in Poorly Studied Basins, by Kerry Gallagher; #120098 (2013)

Search and Discovery.com

P-Wave Impedance, S-Wave Impedance and Density from Linear AVO Inversion: Application to a VSP Data from Alberta

Faranak Mahmoudian

Search and Discovery.com

... of the inverse problem. The damped SVD (singular value decomposition) method has been utilized to stabilize the AVO inversion. The examination...

Abstract: On Choosing Differential Operators; #90171 (2013)

John C. Bancroft

Search and Discovery.com

... filters to reduce aliasing, finite difference solutions to the wave equation, or wavelet correction when modelling with diffractions or migrating...

ABSTRACT: Gas Flushing as a Reservoir Formation Mechanism in the Ordovician Reservoirs, Tazhong Field, Tarim Basin, China: Evidence from Fluid Inclusion, Fluorescence and Hydrogen Isotope Data; #90134 (2011)

Keyu Liu, Nai Zhang, Zhaoming Wang, Julien Bourdet, Shaobo Liu

Search and Discovery.com

... oils may have undergone varying degrees of gas flushing (Fig. 2, see Nomenclatures). Two distinct “inverse isotope fractionation” trends (i.e....

P-Wave Impedance, S-Wave Impedance and Density from Linear AVO Inversion: Application to a VSP Data from Alberta

Faranak Mahmoudian

Search and Discovery.com

... of the inverse problem. The damped SVD (singular value decomposition) method has been utilized to stabilize the AVO inversion. The examination...