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

Somanath Misra and Satinder Chopra

Search and Discovery.com

... to the central Alberta plains. An average mixed phase wavelet is computed from the 3 mixed phase wavelets estimated at 3 different locations. The data...

Abstract: Acquiring Low Frequencies : Sweeps, Sensors, Sampling and Stories; #90224 (2015)

Olivier Winter, Anna Leslie, and Forest Lin

Search and Discovery.com

... of adding octaves is illustrated on the amplitude spectra of the sweeps (figure 1b) as well as on the autocorrelation wavelets (figure 1c). The broader...

Joint Impedance Inversion Transforms Aid Interpretation, by Satinder Chopra, Ritesh Kumar Sharma, Mohammad Hossein Nemati, and Peter Cary; #41667 (2015).

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Determination of Density from Seismic Data; #42456 (2019)

Ritesh Kumar Sharma, Satinder Chopra

Search and Discovery.com

... degrees. The prestack simultaneous impedance inversion thus carried out (wherein the conditioned angle stacks, together with their extracted wavelets...

The Power of Multiple Seismic Attributes in Revealing Geologic Understanding, By, W.E. Johnson, R.O. Louden, D.D. Lehman, and D.L. Edwards, #40067 (2003)

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Prediction of 3-D Facies and Petrophysical Models using Seismic Inversion and Advanced Statistical Data Analytics in Midland Basin Study Area

V. Pandey, T. Nekrasova, I. Tsybulkina, K. Clemons, D. Li, B. Six

Unconventional Resources Technology Conference (URTEC)

... then accurately in time-domain, then we extracted multi-well wavelets for each angle stack to compensate the amplitude and frequency variations URTeC...

Crossplots of Nuclear Logging Relationships Aid in Estimating Sizes and Shapes of Sands to Improve Maps

Rob L. Allen

GCAGS Transactions

... well logs. Quantitative analysis of log patterns and extractions of log wavelets can provide improved estimates of the shapes of sandstone reservoirs...

Limitations on Resolution of Seismic Reflections and Geologic Detail Derivable from Them: Section 1. Fundamentals of Stratigraphic Interpretation of Seismic Data

Robert E. Sheriff

AAPG Special Volumes

... reflections are present so the top and base of the sandstone are"resolved." This is one of the wavelets shown in Figure 3A, where the waveshapes for other...

Using New Techniques to Extract Stratigraphic Information from Seismic Data in Tight Gas Reservoirs

Heidy Correa, Fa Dwan, David Potter

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... be described with a series of wavelets with given frequency and amplitude characteristics. In a given time, spectral decomposition is performed...

The Integration of Geophysical, Geological and Petrophysical Data: A Case Study in North West Java, Indonesia

M. Koswara, J. Negre, L. Hendrata

Southeast Asia Petroleum Exploration Society (SEAPEX)

... surface seismic traces into acoustic impedance pseudo-logs. Firstly, two sets of zero phase surface seismic and well seismic wavelets, which may...

Modeling-based amplitude recovery (MBAR)

Yonghe Sun, Zhemin Tan, Jeff Nealon, James Davenport, Mark Fan, Yuli Zhang, Brian Church

International Meeting for Applied Geoscience and Energy (IMAGE)

... the synthetics to reduce computation. With low-frequency source wavelets, it is both practical and conceptually simple to compute...

Physical Basis of Reflection Seismology

Bruce S. Hart

Special Publications of SEPM

... -ve A plitude +ve Figure 2 .2 . Definition diagra for wavelets. This si ple wavelet consists of positive and negative a plitude values (peaks...

New Approach: Using Relative Inversion with Spectral Decomposition to Distinguish Thin Layers in the 33-Series Sand Reservoirs of the Widuri Field, Southeast Sumatra, Indonesia

Ratih Muliani, Reza Widiatmo, Heri Gunawan, Pranowo Nugroho, Hairunnisa, Awal Mandong, Rino Saputra

Indonesian Petroleum Association

... Decomposition The recorded seismic trace can be considered as a composition of several wavelets with a different peak frequency. For each...

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

... of an alternative method to analyze a signal. In the Continuouse Wavelet Transform, (CWT), wavelets dilate in such a way that time support changes...

V. Contributions of GeoSeismic Modeling

Norman S. Neidell

AAPG Special Volumes

... amount of random noise has been added to the data. Compared to these two sections with complex wavelets, Figure 11 has a simple, short, zero-phase...

ABSTRACT: Genesis of mass wasting seismic facies deduced by CAT-scan analysis; #90013 (2003)

MATHIEU JACQUES DUCHESNE, BERNARD FRANCOIS LONG

Search and Discovery.com

... that are ignored by the acoustic impedance trace. Two successive wavelets (wavelets A and B on figure 1 III) ) between 162.1 and 117.22 cm show the same...

Rock Physics Inversion: A Montney Case Study, #41295 (2014)

James Johnson, Lisa Holmstrom, Satwant Diocee, Rob Tilson, Sean Johnson

Search and Discovery.com

... in wavelet estimation, just low frequency model building, are 11-17, 15-8, B-43-9. These wells were calibrated using the wavelets estimated at the other...

Coherence Attribute Applications on Seismic Data in Various Guises, #42273 (2018).

Satinder Chopra, Kurt J. Marfurt

Search and Discovery.com

... wavelets used in the continuous wavelet transform. The (top) real and (bottom) imaginary (or 90 0phase rotated) wavelets are simply convolved...

Understanding the Reservoir Architecture of Lower Fars Formation in North Kuwait through Seismic Reservoir Characterization; #51531 (2018)

Mohamed Hafez Abdul Razak, Jarrah Al-Jenaie, Hesham Moubarak

Search and Discovery.com

..., and fluid. The second phase was carried out by estimating wavelets and generating pre-stack synthetic seismograms that were used for AVO analysis. Once...

Broadband Seismic Technology and Beyond: Part VII: CGGs BroadSeis „ A Change of Thinking

Lesse Amundsen, Martin Landrø

GEO ExPro Magazine

... broadband wavelets without side lobes, making it possible to resolve a huge amount of detail. In this case to the sea surface increases the noise...

Beam Migration for Imaging of Complex Structures

Karl Schleicher, John Sherwood, Lynn Comeaux, Mazin Farouki

Indonesian Petroleum Association

... wavelets, from 100-200 msecs. in time duration, within local surface spatial superbins each being centered on a uniform Cartesian grid of CDP xline...

Wide-angle AVO-inversion using constant P-traces: AVP-inversion

Dennis Cooke

International Meeting for Applied Geoscience and Energy (IMAGE)

... stretch requires building the operator G so that it includes different source wavelets at different angles. The above practical issues are rapidly...

Seismic Modelling to Support the Interpretation of Seismic Data, Northeast Jambi Block 'B', South Sumatra

J. A. Harwijanto

Indonesian Petroleum Association

... and minimum phase wavelets for a peak frequency of 35 Hertz. Seismic modelling of the sandstone interval In order to evaluate porefill and thickness variations...

Thin Layer Imaging by Wavelet Transform Enhancement

Randy Condronegoro, Woro Sutjiningsih, Herlan Setiadi, Khairul Ummah, Dythia Prayudhatama

Indonesian Petroleum Association

..., and Donoho, D. L., 1995, Translation invariant de-noising: Wavelets and statistics: Andestis Antoniadis (eds.) SpringVerlag. The modified SWT method...

U-net based primary alignment

Ricard Durall, Ammar Ghanim, Norman Ettrich

International Meeting for Applied Geoscience and Energy (IMAGE)

...) and convolving them with synthetic source wavelets. The central frequency, bandwidth, and linear phase-shift parameters of the source wavelets...