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The AAPG/Datapages Combined Publications Database

Showing 1,264 Results. Searched 200,626 documents.

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Application of Litho-Seismic Classification Based on Simultaneous Inversion Results to Detect Offshore Bars: Case Study … Sisi Main Zone, Sisi-Nubi Field Offshore Mahakam Delta

Ruth Christiani-Basa, Sung Yuh, Gilles Vallon, Hermawan

Indonesian Petroleum Association

... in order to be used in the classification. The upscaling process was done using the smoothing filter to avoid having negative values in the output...

2014

History of Development of Local Structures and Formation of Traps for Oil and Gas of the Mubarek Gas-Oil Region

Ye. V. Lebzin

Petroleum Geology: A Digest of Russian Literature

... southeast flanks. See Fig. 2 X. On the top of the carbonate Jurassic at the end of Neocomian-Aptian time there was some smoothing out of the surface...

1964

Simulation and Mapping of Space-Dependent Data in Geology

Michel Dagbert

CSPG Bulletin

... to be reduced by the smoothing effect of interpolation. Simulated values are to be used in every situation when one is looking for estimates based...

1981

Implementation of a Fractal Model for Analysis of Interference Test Data in a Naturally Fractured Reservoir

Dedy Kristanto, Doddy Abdassah

Indonesian Petroleum Association

... the test. This phenomenon could be improved by introducing a smoothing technique on the measured data. Figure 9. The Type Curve Matching of DR#16 Using...

2000

Magnetic and gravity source models of the Gairdner Dolerites

Philip Heath, Clive Foss

Petroleum Exploration Society of Australia (PESA)

... magnetics, and station profiles selected from the ground gravity data. This avoids inherent smoothing in the gridded data which does not retain the true...

2019

Regularization strategies for Seis2Rock-based petrophysical inversion of prestack seismic data

Miguel Corrales, Juan Romero, Nick Luiken, Hussein Hoteit, Matteo Ravasi

International Meeting for Applied Geoscience and Energy (IMAGE)

..., namely smoothing via an L2 -penalty of the Laplacian of the solution, TV regularization, and PnP regularization, and combine all of them with the bound...

2024

Subsalt imaging using elastic FWI: A case study from Walker Ridge, Gulf of Mexico

Chirag Parekh, Andrew Stephenson, Juan Perdomo, Claudia Flores, Christopher McMorland, Matt Vander Griend, Austin Boles, Andrew Fuhrmann

International Meeting for Applied Geoscience and Energy (IMAGE)

.... After a mild smoothing, the model also produced data fitting with which we could start FWI. Though the presence of salt limited the ability of transmitted...

2024

Integrated Full Waveform Inversion and Dip Constrained Tomography for Complex Carbonate Imaging - Case Study from Indonesia

Yonghe Guo, Jun Wang, Pongga Wardaya, Riaz Alai, M Afiq B Mokhtar, Rizki Krishna Pratama, Haryono Haryanto

Indonesian Petroleum Association

.... Smoothing was applied to only keep the long wavelength velocity variations. Conventional tomography by residual move out analysis has been adopted for most...

2018

Old Electrical Log Interpretation [Pre-1958], Chapter 3: The Normal Curve

Hilchie, D.W.

AAPG Special Volumes

... shows a normal curve shape for a thick resistive bed. The dashed line is for no borehole present while the solid line shows the smoothing...

1979

Unlocking the Potential of Conventional Narrow Azimuth Data by Full-Waveform Inversion: a Deep Carbonate Imaging Case Study, Offshore Indonesia

Jun Wang, Yonghe Guo, Putri Supriandini, Bahrul Yusrie, Natalia Anggriani

Indonesian Petroleum Association

... velocity model for FWI was derived from a prestack time migration velocity that was converted to a depth interval velocity with smoothing applied. Water...

2021

Cap Ferret Deep Sea Fan (Bay of Biscay): Environmental Processess: Model Investigations of Margin Environmental and Tectonic Processes

F. Coumes, J. Delteil, H. Gairaud, C. Ravenne, M. Cremer

AAPG Special Volumes

... transport energy smoothing the previous topography. The sequence characteristically has a flat top and occurs also in the deepest part of the fan...

1982

Deconvolution of Time-Varying Bottomhole Pressure Improves Rate-Time Models History Matches and Forecasts of Tight-Oil Wells Production

Leopoldo M. Ruiz Maraggi, Larry W. Lake, Mark P. Walsh

Unconventional Resources Technology Conference (URTEC)

... an inversion scheme using b-spline basis functions with regularization (smoothing) to obtain the constant unit rate solution. The novelty of their approach...

2021

High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia

Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree

Indonesian Petroleum Association

... model for FWI was derived from a pre-stack time migration velocity that was converted to a depth interval velocity with smoothing applied. Figure 5...

2023

Multi Field Evaluation of T2 Distributions and T1-T2 2D Maps

D. Veselinovic, M. J. Dick, T. Kenney, D. Green

Unconventional Resources Technology Conference (URTEC)

...s of First Kind Integral Equations with Nonnegative Constraints and Optimal Smoothing. SIAM Journal on Numerical Analysis, Vol. 18, No. 3. pp. 381-39...

2022

Basic Seismic Processing: Part 7. Geophysical Methods

Peter M. Duncan

AAPG Special Volumes

...). The resulting reflection sequence always has some smoothing function left, usually called the residual wavelet. Attempting to be too exact about...

1992

Phase-Ray Maslov Summation: A Complete Finite-Frequency Ray Method

Tianfei Zhu

Search and Discovery.com

... #90168©2013 CSPG/CSPE GeoConvention 2007, Calgary, Alberta, Canada, May 14-17, 2007 The scattering term also introduces signal smoothing and results...

Unknown

Abstract: Color Correction for Gabor Deconvolution and Nonstationary Phase Rotation; #90171 (2013)

Peng Cheng and Gary F. Margrave

Search and Discovery.com

... spectrum of seismic trace, | S G (τ , f ) | is an appropriate smoothing of | S G (τ , f ) | , μ is the stability factor, and Amax is the maximum...

2013

ABSTRACT: Lithofacial Geostatistical Analysis in the Central Part of the Getic Foreland Basin, Romania; #90007 (2002)

Daniela Vlad

Search and Discovery.com

... is presented in Fig. 5., showing that the ordinary kriging has a smoothing effect. The same superimposing result could be made for different probability...

Unknown

ABSTRACT: OBJECT BASED SIMULATIONS IN FLUVIAL ENVIRONMENT AT THE RESERVOIR SCALE AND AT A LOCAL SCALE; #90013 (2003)

MARTA BENITO GARCIA-MORALES, HELENE BEUCHER, FRANCOIS GEOFFROY, BRIGITTE DOLIGEZ

Search and Discovery.com

... of the deconvolution in terms of intensity, which involves the correction of its negative values. That has been solved by simply smoothing the result of deconvolution...

2003

Phase-Ray Maslov Summation: A Complete Finite-Frequency Ray Method

Tianfei Zhu

Search and Discovery.com

... #90168©2013 CSPG/CSPE GeoConvention 2007, Calgary, Alberta, Canada, May 14-17, 2007 The scattering term also introduces signal smoothing and results...

Unknown

Abstract: Color Correction for Gabor Deconvolution and Nonstationary Phase Rotation; #90171 (2013)

Peng Cheng and Gary F. Margrave

Search and Discovery.com

... spectrum of seismic trace, | S G (τ , f ) | is an appropriate smoothing of | S G (τ , f ) | , μ is the stability factor, and Amax is the maximum...

2013

Abstract: Application of a Tomographic Velocity Model to the Prestack Depth Migration of a Buried Valley; #90172 (2014)

Oluwafemi Ogunsuyi, Douglas R. Schmitt

Search and Discovery.com

... is unknown and further analysis is needed to determine the origin, although it is likely related to the smoothing inherent to any such tomographic...

2014

Abstract: ERT and Seismic Tomography in Identifying Subsurface Cavities; #90172 (2014)

Grey I. Riddle, Craig J. Riddle, Douglas R. Schmitt

Search and Discovery.com

.... The electrical anomaly in general has larger range; this is due to the smoothing during the inversion. Both methods tend to show a similar anomaly at 25.5m offset...

2014

Abstract: Application of 2D Crosscorrelation and Radon Transform for Analysis of Double Couple Microseismic Source; #90187 (2014)

Neda Boroumand and Hassan Khaniani

Search and Discovery.com

... the relative time lag between the two signals, as shown by the correlation results in Figure 4d. Ray tracing data Smoothing length 40 m @ (x 0,z 0...

2014

Abstracts: Full Waveform Inversion Using One-way Migration and Well Calibration; #90173 (2015)

Gary F. Margrave, Robert J. Ferguson, and Chad M. Hogan

Search and Discovery.com

... model. b) The initial migration velocity model formed by smoothing a) with a 600m Gaussian smoother. c) The updated migration velocity model after 1...

2015

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