PINNslope: Physics-informed neural network slope prediction and interpolation with positional encoding

Francesco Brandolin, Matteo Ravasi, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... encoding. Specifically, Nx and Nt (number of encoding frequencies in time) are chosen (empirically) to be different from each other. Seismic data present...

Chapter 5: Seismic Trace Inversion

Tom Wittick

North Texas Geological Society

... to be in a shale sequence and looking for a sand. The sand velocity is different from the shale velocity but by only a few percent rather than the 20+ percent...

Seismic Trace Inversion

Abilene Geological Society

... it is typical to be in a shale sequence and looking for a sand. The sand velocity is different from the shale velocity but by only a few percent...

Broadband Seismic Technology and Beyond: Part VI: Towards a Ghost-Free Solution

Lasse Amundsen, Martin Landrø, Eivind Frømyr

GEO ExPro Magazine

.... The multi-level source concept puts guns, clusters or sub-arrays at different depths and fires them sequentially so that only the down-going waves build up...

Wave Modeling and Hydrodynamics

J. Ian Collins

Special Publications of SEPM

... gL gL c gT 211 Speed Length 211 c 211 d gT tanh tanh h L h L T T for d L 0 05 C Vid Tvgd L 411 d C Group Velocity 1 C gT v...

Fracture Identification and Evaluation Using S Waves, by Bob Hardage, #40792 (2011).

Search and Discovery.com

Fluid and Sediment Dynamics on Continental Shelves

Donald J. P. Swift and Alan W. Niedoroda

Special Publications of SEPM

... indicates the relative amounts of energy expended in fluid motion of different frequencies. G: geostrophic frequency, D:diurnal tidal frequency, I...

Basic Seismic Processing: Part 7. Geophysical Methods

Peter M. Duncan

AAPG Special Volumes

... differences and near-surface velocity changes at different source and receiver stations must be removed. The relative elevation of each shot...

Earth crustal analysis of Northwest Sabah region inferred from receiver function method

Abdul Halim Abdul Latiff, Faridah Othman

Geological Society of Malaysia (GSM)

... of S-waves is around 60% of that P-waves. However, the velocity varies according to the material composition of the medium in which it travels. S waves...

Segregating Porosity-Permeability Transform Using Elocity and Pore Structure in Carbonate Rock

Albertus Ditya, Gregor P. Eberli, Don McNeill, James Klaus

Indonesian Petroleum Association

... the Choquette and Pray classification (1970), corresponds to a different deviation of acoustic velocity from the Wyllie’s time average. The characteristics...

Wave-Formed Sedimentary Structures„A Conceptual Model

H. Edward Clifton

Special Publications of SEPM

... Geological Survey California 94025 ABSTRACT produced by shoaling waves can be integrated into a conceptual model based on velocity um velocity asymmetry d...

Revealing a Shaly (Tight) Sand Reservoir's Distribution by Applying an Untapped Sub-Frequency Combination Method: A Case Study in the West Jambi II Block, South Sumatra Basin

Indra Luthfiana, C. Maya Resha Tuhar, Endi Erfanto, Randy Condronegoro, Hendra Niko Saputra, Abghia Dini Fanzuri, Yan Wijaya, Totok Parafianto

Indonesian Petroleum Association

... for different frequencies. A Wavelet is defined as a mother function (t) єL2 (R) with zero mean, which is localized in both time and frequency...

Joint VTI and Mud Slowness Inversion Using Multiple Modes and Adaptive Weighting

Mark Collins

Unconventional Resources Technology Conference (URTEC)

... isotropy (VTI) (i.e., anisotropy with a vertical axis of symmetry). In such a case, a shear wave polarized in the horizontal plane has a different speed than...

Seismic Activity in the Central Gulf Coast Basin

Eugene R. Brumbaugh

New Orleans Geological Society

... onshore is so much more usable than the old 6 fold data. The effect geophone group spacing has on acquiring higher frequencies has already been...

Abstract: Estimation of Q-factor and Phase Velocity Using the Recovered Stress-strain Relaxation Spectrum; #90172 (2014)

Dali Zhang, Michael P. Lamoureux, Gary F. Margrave

Search and Discovery.com

... that the complex velocity V () or complex modulus M ( ) can be measured at sample data point of frequencies  k (k  1,2,, N ) where N is the total number...

First-Arrival Traveltime Inversion in the CMP Domain: Method and Application

Search and Discovery.com

.... These differences are caused by the statics values computed based on the different near-surface velocity models that were generated by the two different algorithms...

A Method for Reducing the Effects of Base Plate Distortion

S. A. Sorkin

Pacific Section of AAPG

... of base plate distortion can be serious, especially when using a down sweep. Any harmonic frequencies present in the signal being cross-correlated...

An Analysis of a Seismic Reflection from the Base of a Gas Hydrate Zone, Offshore Peru (1)

JOHN J. MILLER , MYUNG W. LEE , and ROLAND VON HUENE

AAPG Bulletin

... using a different, time- and space-invariant velocity function (called constant velocity migration, or CVM). A migration velocity model that varied...

Acquisition and Ananlysis of Wide-Angle Reflection and Refraction Seismic Data

Paul L. Stoffa

Circum Pacific Council Publications

...), we sum the traveltime contributions from each layer. T-p Traveltimes v + q Considering a stack of horizontal constant velocity layers of thickness...

Sorting of Sediments in the Light of Fluid Mechanics

Douglas L. Inman

Journal of Sedimentary Research (SEPM)

... by the average velocity u, the velocity at any instant, u, is the vector sum of the average velocity and a random fluctuation related to turbulence. This may...

Theory and Applications of Time Series Analysis to Wireline Logs: Chapter 5

John H. Doveton

AAPG Special Volumes

... Research Group, 1990). End_Page 111------------------------ constraints within ancient sequences are a common problem. Consequently, a different...

Amplitude Recovery of Digitally Recorded Data

Roy O. Lindseth

Pacific Section of AAPG

... is directly related to changes in lithology, characterized by velocity and density variations. Properly recovered amplitude data can be mapped...

Sediment Dispersal Pattern Off an Eroding Delta on the West Coast of Taiwan

James T. Liu, Ray T. Hsu, Jeong-Shang Huang, Shenn-Yu Chao

Special Publications of SEPM

... patterns suggest that different grain sizes have different responses to various hydrodynamic processes on the shoreface, and therefore, they can...

Weathervaning Characteristics of Tankers Connected to Single Point Moorings

A. T. Brumley, A. E. Potts

Southeast Asia Petroleum Exploration Society (SEAPEX)

... by finding the vector sum of the current velocities to find the total velocity incidence direction and then finding the coefficient for the vector...

Geophysical Techniques Used in Petroleum Exploration in the Ying Ge Hai Area, Zhanjiang, SW Guangdong Province, China

L. William Edwards

Circum Pacific Council Publications

... of instantaneous phase method for line 278A-33. Figures 25 to 27 show three different versions of the color interval velocity for lines 278-33...