Amplitude Versus Offset

Abilene Geological Society

... is dependent on the incidence angle. At a given reflection point on a specific reflector the Poisson's ratios of the rocks above and below...

Subsurface Image Comparison between Active Seismic Data and Interferometry Seismic for a Mud Volcano Case in Wringin Anom, East Java

Triswan Madani Ade Surya, Nur Rochman Muhammad, Nathasya Abigail, Firman Syaifuddin

Indonesian Petroleum Association

... is used to remove high and low frequency noise. Then, predictive deconvolution is used to enhance amplitude level of each frequency and reflector...

A Simple Guide to Depth Conversion: Part I

Ashley Francis

GEO ExPro Magazine

... domain. (Note that depth migration is a seismic imaging technique that improves reflector positioning. Depth migrated data is often converted back...

Designing Coal-Bed Methane Seismic Acquisition Survey Parameters Using Finite Difference Modeling

Abdul Haris, Befriko Murdianto, Adriansyah

Indonesian Petroleum Association

... of the wavefield, shot records, as well as exploding reflector models. FD can be implemented using second order and fourth order approximation...

Mitigation of the 3D Cross-Line Acquisition Footprint Using Separated Wavefield Imaging of Dual-Sensor Streamer Seismic Data … A First Example from Malaysia

Mazin Farouki, Andrew Long, Richard Jones, Yee Ah Chim, Magdalene Tang, Hui LeGleut, Shaoping Lu, Dan Whitmore, Adam Betteridge

Indonesian Petroleum Association

..., for shallow events and at large offsets a frequency distortion occurs as a result of Normal Moveout Correction (NMO), and a mute is required to remove...

Prestack Investigation of Shallow Surface-Sourced Seismic Data in Central-Northern Louisiana

D. Cimadomo, G. Kinsland, R. Zhang

GCAGS Transactions

.... In the stacked data image, the Cane River Shale/Carrizo Sand contact is a continuous high amplitude reflector. To investigate the ability of the high...

Understanding Multiples to Upgrade Low-Relief Prospects

Sunu H. Praptono, Witan O. Ardjakusumah

Indonesian Petroleum Association

... relief, draping over a slightly tilted basement high. However, on Line B, the basement high is not as evident, it is flat before curving up...

Optimized characterization workflow for naturally fractured reservoirs using seismic anisotropy attributes in the Middle Magdalena Valley basin, Colombia

Oscar Moreno, Enrique Casaña, Luis Figuera, Iván Higuera, Diego García, Jorge Acosta, Benjamin Roure

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Rüger AVAZ related anisotropy attributes calculation was the next step (Figure 1a). Once the NMO corrected gathers from VVAZ were completely flat...

AVO Analysis for Direct Hydrocarbon Detection in Field X in the Persian Gulf (Paper 5)

Mohammad Ali Riahi, Mohammad Emami Niri

Geological Society of Malaysia (GSM)

... Hydrocarbon Indicator (DHI)". For many years, it has been a common practice to use Bright Spots, Flat Spots and Dim Spots in seismic data...

Where's the Data? Acquisition and Processing of Seismic Data in the PNG Highlands, #41762 (2016).

Geoff Mansfield, Subhash Chandra, Peter Carver

Search and Discovery.com

... of the highlands despite its simplistic flow and reliance on the flat layer assumptions of conventional NMO and Stack. The 2005 seismic section shown...

Where's the Data? Acquisition and Processing of Seismic Data in the PNG Highlands, #41762 (2016).

Geoff Mansfield, Subhash Chandra, Peter Carver

Search and Discovery.com

... of the highlands despite its simplistic flow and reliance on the flat layer assumptions of conventional NMO and Stack. The 2005 seismic section shown...

Moho, Basin Dynamics, Salt Stock Family Development, and Hydrocarbon System Examples of the North German Basin Revisited by Applying Seismic Common Reflection Surface Processing

Heinz-Juergen Brink, Dirk Gajewski, Mikhail Baykulov, Mi-Kyung Yoon

AAPG Special Volumes

.... Gierse, and J. Pruessmann, 2001, The common reflection surface (CRS) stack: Structural resolution in time domain beyond the conventional NMO/DMO stack...

Tectonic Analysis of a Viking Graben Border Fault

Nils Fagerland

AAPG Bulletin

... deconvolution before stack; 1:2:1 mix with differential NMO correction. Twenty-four lines were migrated. Line 150 in the south and lines 171, 173, 175...

Shipboard Processing and Interpretation

D.M. Angstadt

Geological Society of Malaysia (GSM)

... • PREDICTIVE DECONVOLUTION • BAND PASS FILTERING • SET GEOMETRY - > CoMoPo GATHER • VELOCITY ANALYSIS • NMO CORRECTION, MUTING • TRACE MIX 1:3:1 • BAND...

Abstract: Fracture Detection Via Azimuthal Analysis of Seismic Data: Snake Oil or silver Bullet?; #90187 (2014)

Mike Perz, Peter Cary, Xinxiang Li, and Satinder Chopra

Search and Discovery.com

..., AB, Canada and P wave NMO velocity differences parallel and perpendicular to fractures, respectively), while the VVAZ and SWS responses depend...

Investigation of DMO Algorithms during Test-Line Processing: Some Recommendations

Ng Tong San, Mohd. Hashim Abas, Leong Lap Sau

Geological Society of Malaysia (GSM)

... it is related with the reflector dip angle 8. The above suggests that the DMO process is a two-stage correction viz: NMO followed by DMO (see Yilmaz, 1987...

Common Reflection Surface (CRS) Stack: Limitations and Opportunities for High-Resolution Seismic Imaging; Real Data Cases

M. S. Jaya, E. A. Sentani, Yendri, Widjonarko, D. Santoso

Indonesian Petroleum Association

... in a higher S/N ratio image then the conventional (NMO/DMO-) stack. The underlying theory of CRS stack is, however, developed for imaging primary events...

Abstracts: True-Amplitude PS Prestack Time Migration via 5D Interpolation; #90173 (2015)

Peter W. Cary, Albert Zhang

Search and Discovery.com

... of a converted-wave seismic trace, the regular processing flow of NMO plus DMO and poststack migration can have difficulty achieving an optimal image...

Recent Advances in Borehole Seismic

W. L. Nutt

Indonesian Petroleum Association

... the subsurface model. This NMO correction has the effect of replacing the oblique reflector travel times from the source to the receiver by the corresponding...

New constraints on buried Triassic basins and regional implications for subsurface CO2 storage from the SeisData6 seismic profile across the Southeast Georgia coastal plain

Olusoga M. Akintunde, Camelia C. Knapp, James H. Knapp, David M. Heffner

Environmental Geosciences (DEG)

... of subhorizontal reflectors below the topmost reflector. We reinterpreted the topmost reflector to originate from a change in velocity and density between...

Seismic Sequences and Their Distribution on the Wilkes Land Margin

S. L. Eittreim, G. L. Smith

Circum Pacific Council Publications

... with an unknown thickness of flat-lying sediments according to radio-echo sounding data of Steed and Drewry ( 1 9 8 2 ) . Gradients in the magnetic field indicate...

Abstract: Azimuthal Anisotropic NMO Analysis for Amplitude Stripping Removal in Sumandak 3D Reprocessing (Geophysics Paper 15)

Mazlan Ghazali, Edgardo Padron, Mehmet Ferruh

Geological Society of Malaysia (GSM)

...Abstract: Azimuthal Anisotropic NMO Analysis for Amplitude Stripping Removal in Sumandak 3D Reprocessing (Geophysics Paper 15) Mazlan Ghazali...

New Data Reveals Sub-Salt Levantine Basin

Øystein Lie, Per Helge Semb

GEO ExPro Magazine

... and NMO stack. The up-going pressure wavefield (P-up) derived from the dual-sensor data was extrapolated to the 2006 survey streamer depth...

Abstract: A Seismic Workstation Solution to Bakken AVO; #90174 (2014)

D. Meisinger and N. H. Kalmanovitch

Search and Discovery.com

... a measure of interference between P and S waves at a reflector and since fractures change S waves AVO should provide the ability to distinguish between...

AVO Inversion in Marine Gas Hydrate Studies; #41603 (2015)

Marc-André Chen, Stan Dosso, George Spence, Michael Riedel, Roy Hyndman

Search and Discovery.com

...-simulating reflector (BSR) on low frequency seismic records. One of the methods that may provide constraint on the concentration of gas hydrate...