Wavelet Processing

Lee Lu

Indonesian Petroleum Association

... of the data. Many methods can be used to extract the source wavelets. These include extraction from water bottom events and from reflectivity...

Crustal architecture and structural variability of offshore Colombia: Observations from recently reprocessed seismic data

Kyle Reuber, Antara Goswami, Chuck Campbell

International Meeting for Applied Geoscience and Energy (IMAGE)

...). In these data, we see over-thickened plateau crust with extensive internal reflectivity that indicates plateau-building processes, rather than...

Seismic Foldout: Quad 35 Hybrid MC3Ds: Innovative multi-parameter FWI for near field exploration

Tor Akermoen, Jeroen Hoogeveen, GEOEX MCG, Kristen Berli, Seismic Partner, Tom Rayment, Percy Mellar

GEO ExPro Magazine

... and reflectivity volumes can be derived from multiple surveys as was the case here, with both the streamer and OBN data used as input. At high frequency...

A novel approach to hydrocarbon reserves estimation through the integration of AI-based solutions: 3D gamma-ray prediction and 3D seismic clustering

Konstantin Matrosov, Orkhan Mammadov, Tarek Eliva, Ruslan Malikov, Izat Shahsenov

International Meeting for Applied Geoscience and Energy (IMAGE)

... Ray (GR) prediction requires a seismic reflectivity stack and GR log from the wells. In the background, it utilizes the Convolutional Neural Network...

Lithology Discrimination through Elastic Inversion (Paper C5)

D. Ghosh

Geological Society of Malaysia (GSM)

..., is used loosely to mean any or all of the following:Reflection strength (Sweetness); Reflectivity; AVO; Acoustic impedance (AI); Elastic impedance (EI); Vp...

A Reflected-Light Petrographic Technique for Peats: RESEARCH METHOD PAPER

J. S. Esterle , T. A. Moore , J. C. Hower

Journal of Sedimentary Research (SEPM)

... by quantitative reflectivity and/or fluorescence of cel walls and cell fillings. Since coal reflectivity is measured in the same way, this technique...

Pitfalls in three-dimensional seismic interpretation: Footprints of an irregular source–receiver layout

Priyank Jaiswal, Robert Holman, and Michael Grammer

AAPG Bulletin

... and field development; they contain information about subtle changes in pore fluid and rock fabric that is not obvious in a conventional reflectivity...

ABSTRACT: Three-Dimensional Prestack Inversion, Lobo Trend, South Texas; #90007 (2002)

Anno, Phil, Mark Wuenscher, Robert Corbin, John Hooper, Frank Chlumsky

Search and Discovery.com

... Meeting, Houston, Texas, March 1-13, 2002 Equation (1) expresses reflectivity R as a function of incidence angle θ . One derives this Poisson's Ratio...

ABSTRACT: Modeling Seismic Signature of Small Faults from Outcrop Analogues; #90013 (2003)

JUAN FLOREZ, GARY MAVKO

Search and Discovery.com

... reflectivity. Hudson’s model requires crack density values to be normalized to a maximum of 0.1. Based on our field observations of the relationship...

From a Field Based Geological Model to a Seismic Image: The Middle Eocene Ainsa System (South-Central Pyrenees); #90017 (2003)

Giovanni Benevelli, S. Angella, L. Fava, P. Rocchini, A. Valdisturlo

Search and Discovery.com

... synthetic seismic lines. The first step of the forward seismic modeling is the ray-tracing that allows computing of the depth section of reflectivity. We use...

Gabor Deconvolution: Surface-Consistent and Iterative

Search and Discovery.com

... for extracting the most realistic earth reflectivity from seismic traces, because of its adaptability to the characteristics of a given data set...

Abstract: Variable-factor S-transform for Time-frequency Decomposition, Deconvolution, and Noise Attenuation; #90172 (2014)

Todor I. Todorov, Gary F. Margrave

Search and Discovery.com

... is a display of a random reflectivity sequence and the corresponding synthetic trace with a minimum-phase wavelet and Q=100. Figure 6 is the variable...

Abstract: An Effective Medium Model for a Fractured Carbonate Reservoir Undergoing CO2 Flood at Weyburn Field, Saskatchewan; #90174 (2014)

Chris Blackwood

Search and Discovery.com

... (AVO) and azimuth (AVAZ) behaviour. Figure 2 presents P-wave reflectivity (Rp) vs. angle of incidence for several scenarios. Effective medium 1...

Abstract: Full Waveform Inversion Algorithm using Time Imaging Methods; #90174 (2014)

Hassan Khaniani, John C. Bancroft, Gary F. Margrave, and Eric von Lunen

Search and Discovery.com

... the reflectivity function (Schneider, 1978). Then we derive the wavefield perturbation as a result of the velocity perturbation. This results...

Abstract: Multi-trace Acoustic-impedance Inversion with Transform-domain Sparsity Promotion; #90174 (2014)

Sanyi Yuan, Shangxu Wang, Ning Tu, and Xiang Li

Search and Discovery.com

... reflectivity or blocky impedance assumptions (Oldenburg, Scheuer and Levy, 1983), is often added to partially fill in the null space of ill-posed time-domain...

Abstract: Separation of Geometric Spreading, Scattering and Intrinsic Attenuation in VSP data; #90187 (2014)

Amin Baharvand Ahmadi and Igor Morozov

Search and Discovery.com

...-incidence reflectivity during propagation. This 1-D approximation focuses on scattering effects and appears to be reasonable for strongly layered...

Abstract: Producing Pore Pressure Profiles Based on Theoretical Models in Un-Drilled Deep-Water Frontier Basins E.G. Labrador; #90224 (2015)

Sam Green, Stephen O'Connor, William Goodman, Niklas Heinemann, Alexander Edwards, James Carter, and Deric Cameron

Search and Discovery.com

... Reflectivity with interpreted lithology and extracted velocity for the shale-rich, deepwater TPP 2 and shallow water sand-prone offset wells North...

Seismic Characterization of the First 3D Surveys Offshore Cyprus and Lebanon, by Oystein Lie and Mark Trayfoot; #10194 (2009)

Search and Discovery.com

Extracting Formation Properties from Hydraulically Induced Microseisms, Seismic Attributes, and Impedance Inversion; #80252 (2012)

Xavier E. Refunjol, Kurt J. Marfurt, Joel H. Le Calvez, and Katie M. Keranen

Search and Discovery.com

... - 0.4 Time (ms) (AI2 + AI1) 1004 Decreasing Impedance = Negative Reflectivity = Trough 1006 Limestone Limestone 1008 1010 1012 Time (ms) 1014...

Integration of Surface and Subsurface Tools in The Reservoir Characterization of Unconventional Plays; #41211 (2013)

Roderick Perez

Search and Discovery.com

... FRACTURED ROCK Angle Gathers RP reflectivity RS reflectivity ZP impedance ZS impedance λρ µρ λρ vs. µρ crossplot Goodway (2007) 19 SURFACE...

Ground Penetrating Radar Enhances Analogs, by John McBride, Colby Hazard, Scott Ritter, Thomas Morris, David Tingey, Bill Keach, Jani Radebaugh, Clayton Chandler, Karl Arnold, and Gene Wolfe; #41375 (2014).

Search and Discovery.com

Visualizing AVAZ Parameter Estimates and Uncertainty, #41571 (2015).

Jon Downton, Dave Gray, Torre Zuk

Search and Discovery.com

... reflectivity, Biso the isotropic gradient, Bani the anisotropic gradient and Фsym is the symmetry axis of the HTI anisotropic media. The anisotropy...

Impedance Inversion Transforms Aid Interpretation, by Satinder Chopra and Ritesh Kumar Sharma; #41622 (2015).

Search and Discovery.com

Attribute-Assisted Automatic Fault Extraction - A Case Study in a Tectonically Complex Area Offshore East Coast of Canada; #41925 (2016)

H. M. Garcia, J. Dexter, R. Martin

Search and Discovery.com

... reflectivity data with limited frequency content enables faults to be investigated at different scales. The results can be used at exploration scale to gain...

Prospect Investigation and De-Risking Using Cognitive Interpretation Workflows, Offshore Equatorial Guinea; #42170 (2017)

Tom Wooltorton, Stephen Leslie, Merritt Smith, Ryan M. Williams, Luis Gomez

Search and Discovery.com

... was aided by combination with AVO and the seismic data, using opacity blending. Peak/High value Reflectivity UFNF Dip Caracal Risk Reduction Reservoir...