Least Square Q-Kirchhoff Migration: Implementation and Application

Xiaodong Wu, Yi Xie, Joe Zhou, Dechun Lin, Yu Wang

Petroleum Exploration Society of Australia (PESA)

...) is obtained by convolution Bm1 . Q It is worth mentioning that because the solution space for B is large, some sparse constraints have to be imposed on (4...

Analysis of Electromagnetic Depth Sounding Responses Over a Layered Earth: Investigating Oil & Gas Seeps in the Petroleum Provinces

Shastri L. Nimmagadda, Andrew Ochan

Petroleum Exploration Society of Australia (PESA)

... to the convolution sum along with the filter weights is given as: n (4) │ hz │ = convolution sum = Σ Ck . f (Yk) k=0 Where Ck = the filter coefficient...

Improved approach for the suppression of interbed multiples related with coal strata in the Junggar Basin

Yang Huidong, Li Daoshan, Gong Ting, Lv Yongchang, Miao Yanshu, Zhang Boen

International Meeting for Applied Geoscience and Energy (IMAGE)

... on convolution-correlation was proposed by Jakubowicz in 1998, decomposes the internal multiple prediction from three components. The three...

A New Technique of Thin Bed Reservoir Evaluation Using Image Log Data

Dwiky Perdana Susanto, Gilang Ariestya, Haris Kurniawan Hidayat

Indonesian Petroleum Association

... synthetic logs, de-convolution was performed for each high-resolution synthetic log to be compared with a standard resolution log (Figure 4). An iterative...

Combined AVO and Spectral Decomposition Analyses to Characterize Gas Sand Reservoir Below Tuning Thickness Condition

Julian Saputro, Jaenudin, Alexis Badai Samudra, Enik Puji Lestari, Sugiono, Aldis Ramadhan, Yosi Hirosiadi

Indonesian Petroleum Association

... in frequency analysis, fast convolution, image process-ing, etc. Moreover, fast algorithms exist that make it possible to compute the DFT very...

AVA attribute estimation from misaligned seismic gathers using U-Net

Ammar Ghanim, Ricard Durall, Norman Ettrich

International Meeting for Applied Geoscience and Energy (IMAGE)

...ey approximation. Subsequently, convolution with the wavelet (𝑤) is performed to ultimately produce the synthetic seismic gathers (𝑦seis ). ̅ Fou...

Deep water OBN multiple prediction from local reflectivity in the Stolt domain

Cesar Ricardez

International Meeting for Applied Geoscience and Energy (IMAGE)

... the convolution of two bandlimited signals. Its superiority can be noted in predicting complex multiples necessitating a broad aperture for prediction...

Poor Man's Synthetic Seismogram

Andrew Nelson

Petroleum Exploration Society of Australia (PESA)

...: velocity log • • To select all the data below the active cell, use ctrl+shift+down arrow keys Convolution of the reflectiv ity series to be made...

Extended Abstract: Integrating Time-Lapse 3D (4D) Seismic Data with Reservoir Simulators

John Waggoner

Petroleum Exploration Society of Australia (PESA)

... a Gassmann fluid substitution to get acoustic impedance, and then a zero- PESA News February/M arch 2000/2001 17 ABSTRACT OF TALK offset convolution...

Numerical RTA Extended to Complex Fracture Systems: Part 1

Mathias Lia Carlsen, Curtis Hays Whitson

Unconventional Resources Technology Conference (URTEC)

..., and spatial superposition (convolution), pseudopressure and pseudotime transforms are not required. URTeC 3718584 2 Introduction RTA is used...

Deep Learning Models for Methane Emissions Identification and Quantification

Ismot Jahan, Mohamed Mehana, Bulbul Ahmmed, Javier E. Santos, Dan O’Malley, Hari Viswanathan

Unconventional Resources Technology Conference (URTEC)

... 256X1 Input 128X128X1 Convolution 126X126X32 Block 1 Convolution 61X61X64 Output Convolution 28X28X128 Block 5 Block 2 Block 3 Convolution 12X12X256...

Estimating Porosity from Determinsitic Inversion (Paper C6)

M. Sams, T. J. Focht, J. Ting

Geological Society of Malaysia (GSM)

... the likely success and limitations. Using a wavelet derived from a near angle stack of the real seismic data, we generate through convolution a synthetic...

High-Resolution Deconvolution with Sparsity and Lateral Continuity Constraints

Juefu Wang

Search and Discovery.com

... where W is the convolution matrix containing the known wavelet, r is the reflectivity trace, s is the seismogram, O is a trade-off parameter which...

High-Resolution Deconvolution with Sparsity and Lateral Continuity Constraints

Juefu Wang

Search and Discovery.com

... where W is the convolution matrix containing the known wavelet, r is the reflectivity trace, s is the seismogram, O is a trade-off parameter which...

Efficiently Solving Wave Equation Migration on Multicore Processors

Search and Discovery.com

... of one of the most common imaging algorithms, Wave Equation Migration. This bottleneck consists of the repeated convolution of a set of 2-dimensional...

Abstract: Towards Using Seismic Moment Tensor Inversions to Infer Reservoir Rock Properties; #90174 (2014)

Adam M. Baig, Ted I. Urbancic, Eric von Lunen, and Jason Hendrick

Search and Discovery.com

... and Fracture Orientations A waveform from a microseismic event can be considered to be the convolution of a source and a Green’s function, describing...

Abstract: Receiver Comparison for a Non-repeatable Earthquake Source on the Hussar 2011 Low-frequency Seismic Experiment; #90174 (2014)

Kevin W. Hall, Gary F. Margrave, and Malcolm B. Bertram

Search and Discovery.com

... wavelet and applying to geophone data by convolution has been shown to successfully correct for geophone response to amplitude. Receiver gathers of sensors...

Abstract: Kirchhoff Imaging with Adaptive Greens Functions for Compensation for Dispersion, Attenuation, and Velocity Imprecision; #90187 (2014)

Andrew V. Barrett

Search and Discovery.com

... by convolution, and the delta function as a trace resampling. Note that there is a separate convolutional operator for every input trace and image...

Abstract: Blind Surface Consistent Wavelet Estimation; #90187 (2014)

E. Bongajum, N. Kazemi, and M. D. Sacchi

Search and Discovery.com

... Sn (5) where r is a column vector representing the multichannel reflectivity in the time domain; Dim G j , and Dn j Si correspond to convolution...

Abstract: Practical Implementation of SRME for Land Multiple Attenuation; #90187 (2014)

Juefu Wang and Shaowu Wang

Search and Discovery.com

... is equal to the convolution of two traces corresponding to two ray paths. The figure shows that one multiple contribution between S and R can...

Abstracts: Impedance Inversion of Phase Corrected Data- A Case Study; #90173 (2015)

Somanath Misra and Satinder Chopra

Search and Discovery.com

.... The phase corrected data is further used for the impedance inversion. Theory A mixed phase wavelet is parameterized as a convolution of a minimum phase...

Abstract: Statics or Statistics?„The Near-Surface Revisited; #90211 (2015)

David Henley

Search and Discovery.com

... know that a time-shifted time series can be considered the convolution of the zero-shift time series with a time-shifted unit copy spike...

Abstract: Basin-Level First Arrival Tomographic Inversion Near-Surface Modeling and Key Technologies; #91210 (2025)

Liansheng Liu, Chunlan Xing

Search and Discovery.com

... virtual sources and convolution reconstruction. In practical applications, these two techniques can be used individually or in combination to achieve...

Bulk Gas Volume Estimation Using Multi-Attribute Regression and Probabilistic Neural Network (PNN): A Case Study in a Gas Field from East Coast of India, #41100 (2012)

Amit K. Ray, Samir Biswal

Search and Discovery.com

... analysis was performed using Gas Volume log at fifteen well locations. Convolution operator length has been chosen using the cross-validation...

Seismically Induced Soft-Sediment Deformation Structures in the Eocene Lacustrine Green River Formation (Wyoming, Utah, Colorado, USA) … A Preliminary Study; #50955 (2014)

Balázs Törő, Brian R. Pratt, and Robin W. Renaut

Search and Discovery.com

... demonstrate plastic and brittle deformation, such as folds, convolution, load and flame features, dislocated, fractured and/or fragmented laminites...