Geologic/Geophysical Study of Fluvial Delta in Offshore Louisiana: ABSTRACT

John E. Jordan, Jr.

AAPG Bulletin

.... These reflection coefficients were then filtered using a time-variant filter. The depositional model was constructed on the basis of the correlation...

Abstract: Estimation of Q: a Comparison of Different Computational Methods; #90187 (2014)

Peng Cheng and Gary F. Margrave

Search and Discovery.com

...., 1998, Theory of nonstationary linear filtering in the Fourier domain with application to time-variant filtering: Geophysics, 63, 244-259 Raikes...

Seismic Data Preconditioning for Improved Reservoir Characterization (Inversion and Fracture Analysis); #41347 (2014)

Darren Schmidt, Alicia Veronesi, Franck Delbecq, and Jeff Durand

Search and Discovery.com

... accomplished through the use of (time-variant) trim statics. However, if VTI or HTI patterns are observed on the seismic data, then additional anisotropy...

Environmental Applications of the Pseudoseismic Technique

Alex Martinez, David P. Young, John F. Hopkins

Environmental Geosciences (DEG)

... interpretation uses static data, but many environmental problems deal with time-variant data. Time-sampled well data (e.g., repeated logging of a well...

The Geophysicist Communicating with Seismic Processing

R. E. Sheriff

Southeast Asia Petroleum Exploration Society (SEAPEX)

... into an auxilliary stream, where these data will be muted (/MUTE), filtered with space and time variant options (/STVF), and then velocity spectra made...

Passive Margins: Eroded Carbonate Platform Margin--The Blake Escarpment off Southeastern United States

William P. Dillon, Anne M. Trehu, Page C. Valentine, and Mahlon M. Ball

AAPG Special Volumes

...-point stack, poststack time-variant deconvolution, and time-variant filtering and scaling. This processing resulted in the records of Figures 7 and 8...

Time-lapse impedance variations using DAS VSP data during CO2 injection at the CMC Newell County Facility, Alberta, Canada

Yichuan Wang, Donald C. Lawton

International Meeting for Applied Geoscience and Energy (IMAGE)

... shifting, amplitude correction, and spectral shaping. These three are applied locally by time-variant filtering using a series of overlapping Hann time...

Simplicity at Its Best: Estimating Depth Uncertainty at the Wiriagar Deep Paleocene Field, Eastern Indonesia

Made Susantha, Imam S. Harun

Indonesian Petroleum Association

... and time-variant manner. Individual reservoir sands are difficult to map, but bounding surfaces at Near Top Paleocene and Base of Late Cretaceous were...

Basic Seismic Processing: Part 7. Geophysical Methods

Peter M. Duncan

AAPG Special Volumes

... by a number that increases with time. The exact time variant multiplier can be based on the theoretical concept of spherical spreading (related to the square...

Structural Interpretation of the Table Rock Area 3-D Survey, Sweetwater County, Wyoming

Cynthia B. Russell, Donald S. Stone

Rocky Mountain Association of Geologists

.... Velocity Analysis one mile grid 19. Time Variant Frequency Filtering 10. MISER Automatic Statics 20. Random Noise Attenuation subcrop map. Closely...

Shallow Water Seismic Operations on the North West Shelf

T. J. Allen, D. Brown, J. Wardell

Petroleum Exploration Society of Australia (PESA)

... to be attenuated by the single operator designature, as is very evident when Figures 4 and 5 are compared. The solution chosen was to apply a space and time variant...

THE EARTH'S CRUST UNDER THE WILLISTON BASIN IN EASTERN SASKATCHEWAN AND WESTERN MANITOBA

Z. HAJNAL, C. M. R. FOWLER

Williston Basin Symposium

... of a time variant adaptive filtering process. After several different tests, the principles, which were described by Griffiths et...

Abstract: Q Estimation by a Match-filter Method; #90174 (2014)

Peng Cheng and Gary F. Margrave

Search and Discovery.com

... with application to time-variant filtering: Geophysics, 63, 244-259 Patton, S. W., 1988, Robust and least-squares estimation of acoustic attenuation from...

Geology and Discovery of Prudhoe Bay Field, Eastern Arctic Slope, Alaska: Case Histories

Dean L. Morgridge, William B. Smith Jr.

AAPG Special Volumes

... possible by deconvolution and time-variant filtering of digital reprocessing. Insert at bottom is diagram of truncation details as interpreted from...

ABSTRACT: Reflection Shear-Wave Data Along the Principal Axes of Aximuthal Anisotropy, by Heloise B. Lynn and Leon A. Thomsen; #91038 (2010)

Search and Discovery.com

ABSTRACT: Seismic Velocity Models for Heat Zones in Athabasca Tar Sands, by L. R. Lines, J. D. Covey; #91003 (1990).

Search and Discovery.com

Practical Use of Inverted Seismic Data: ABSTRACT

Gary Hamill

AAPG Bulletin

... be restored deterministically by the use of a geologic model with interval velocities specified. Time-variant pr cesses should be minimized...

Abstract: Merging of Multi 3D Land Seismic Surveys, Challenges and Mitigations; #90319 (2018)

Anwar Al-Kandari, Riyanto Kusumo, Agus Abdullah, Fatma Basha, Hanan Al-Hasan

Search and Discovery.com

... flow including seismic data interpolation/regularization, amplitude matching and spatial and time variant alignment to several seismic surveys...

Multicomponent Processing and Fracture Characterization Analysis of Two Wyoming 3-D PS-Wave Surveys: Jonah Field and Washakie Basin, by Gaiser, J.E., R.R. Van Dok; #90030(2004)

Search and Discovery.com

Early 3-D Seismic Exploration for Winnipegosis Pinnacle Reefs in the US, Williston Basin

Donald A. Greenwood, James A. Carroll, Donald W. Howard

Rocky Mountain Association of Geologists

... a conventional sequence of statics, spectral whitening, velocity analysis, migration, time-variant filtering (TVF), and automatic gain control (AGC). Processing...

The Application of Image Processing Techniques for Complex Structures

V. Sudhakar, I. T. McMahon

Indonesian Petroleum Association

... in interval velocity with depth, the DMO operator used is based either on a time-invariant or time-variant DMO algorithm. To some extent the velocity...

Seismic speckle as multiplicative noise explaining land reflections distorted by near-surface scattering

Andrey Bakulin, Dmitry Neklyudov, Ilya Silvestrov

International Meeting for Applied Geoscience and Energy (IMAGE)

...” gather obtained by repeating real data trace from the red box of Figure 6; (b) Perturbed gather after introducing spatially changing and time-variant...

S-transform based processing of noisy surface wave record for recovering high-resolution spectrum

Sayan Mukherjee, Mrinal Bhaumik, Tarun Naskar

International Meeting for Applied Geoscience and Energy (IMAGE)

...lation with high-resolution time-variant Radon transforms: Geophysics, 67, 644– 656, doi: https://doi.org/10.1190/1.1468626. Virieux, J., 1986, P-S...

Seismic Data Acquisition and Processing in the Midway-Sunset Oil Field

C. R. Willingham, A. S. Wylie Jr., D. J. Underwood

Pacific Section of AAPG

... Migration Velocity Analysis NMO application Muting Stack TAU-P (Noise reduction) Digial Filter - time variant Trace scaling: AGC = 500 ms...

First Seismic Survey in Indonesia For The CCS Project Using Vibroseis as a Non-Explosive Seismic Source

Takeshi Kozawa, Nobuhito Shimada, Masami Hato, Alfian Bahar, Awali Priyono, Rachmat Sule, Stevanus P. H. Silban, Toshifumi Matsuoka, Toru Takahashi, Takao Aizawa, Isamu Kuboki, Alphius D. Guntara

Indonesian Petroleum Association

... Adaptive Time Variant Filter) is effective. DATVF scales the amplitude of the noises which exceed the defined threshold in particular time gates...