Geophysical Characterization of Lithology--Application to Subtle Traps

Carl H. Savit, Changsheng Wu

AAPG Special Volumes

... surveys or the geometric analysis of reflection times (the classic normal-moveout-velocity analysis). Results of such calculations of sound velocity...

Application of Full Waveform Inversion to Resolve an Eroded Shallow Carbonate Platform, North Madura, East Java, Indonesia

David Cavalin, Nurrul Ismail, Tom Paten, Kola Agbebi, Dave Lim

Indonesian Petroleum Association

... the VMB exercise, FWI updates captured the velocity required for the imaging process to reduce significantly the moveout seen on the gathers...

Dilworth (Carrizo) Field , McMullen County, Texas

Redge L. Greenberg and T. W. Swinbank

GCAGS Transactions

... and contracted for a 3-D seismic survey in the summer of 1994. 3-D SEISMIC SURVEY The 3-D survey was originally designed to optimize resolution versus cost...

Combining PSDM and Seismic Modeling to Reduce Uncertainties in Time Structural Interpretation

William Agudelo, José Fernando Gamboa, Saúl Guevara, Carlos Piedrahita, Luis Ernesto Rojas, Martín Morales, Héctor Alfonso

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... Migration (PSTM) was performed in each 2D line. This process allows to build a RMS velocity field. Residual moveout (RMO) can be corrected in vertical...

Abstract: Nisku Multiple Attenuation with Interpolation and Sparsity: A Case Study; #90172 (2014)

Lee Hunt, Scott Reynolds, Mark Hadley, Scott Hadley, Mike Perz, Ye Zheng

Search and Discovery.com

.... Hampson, D., 1986, Inverse velocity stacking for multiple elimination Canadian Journal of Exploration Geophysicists, 22, 44. Hunt, L. H., Hadley...

Exploration of the North Seribu Area, Northwest Java Sea

Roberto Fainstein

Indonesian Petroleum Association

... at different times, misties due to velocity stacking and wavelet processing inconsistencies were carried through and complicated the seismic interpretation...

S/N RATIO AND BANDWIDTH CONSIDERATIONS WHEN UTILIZING SEISMIC DATA IN EXPLORING FOR SUBTLE TRAPS - EXAMPLES FROM THE KNOX PLAY

Edward R. Tegland, Exploration Development, Inc., S. Pikes Peak Dr., Parker, CO Patrick H. Bygott, Exploration Development, Inc., S. Pikes Peak Dr., Parker, CO

Ohio Geological Society

... Hale,D., 1984, Dip Moveout by Fourier Transform (Stacking NMO): Geophysics, v. 49, p. 741-757. Sheriff, R. E., 1968...

Unlocking Value from Vintage Seismic Processing - Pre-stack Conditioning and Inversion in the Eagle Ford Shale

Andrew Munoz, Bill Shea

Unconventional Resources Technology Conference (URTEC)

... anisotropic assumptions are used when estimating moveout velocities, and since the 2012 processing did not use an anisotropic velocity model...

A New Method of Multiple Attenuation: Multiple Identification and Subtraction

Search and Discovery.com

... is two-way traveltime at offset x and 0 respectively, x is offset, and v is velocity. Data Examples In first synthetic data example (model...

SEISMIC REFLECTION SURVEYING FOR OIL AND GAS FIELDS IN NORTH CENTRAL TEXAS

TED COUGHRAN

Fort Worth Geological Society

... point stacking sequence. The 7-fold gather in the center has been moveout corrected, fine-tune static corrected, and filtered. All seven traces were...

Experience with Seismic Lithology (AVO) in Central Sumatra

Jeff Wright, Isdjulaedi Bakri, Budi Subiyanto

Indonesian Petroleum Association

... the effect of varying fluid content in the rock on its' velocity and density and graphs the changes in reflection coefficient as a function of angle...

Extended Abstract: High Resolution Surface-Sourced Seismic Experiment to Image Wilcox Group Horizons in Northern Central Louisiana

Gary L. Kinsland, Robert Stewart, Li Chang, Doug Temple, Mark King

GCAGS Transactions

... plot in velocity (500–3000 m/sec)/time (0–1.5 sec) space illustrating several strong reflectors throughout the record and their stacking velocities, (2...

What is Horizontal Resolution?

L. R. Denham, R. E. Sheriff

Indonesian Petroleum Association

.... BLACKBURN, G., 1980, Errors in stacking velocity – true velocity conversion over complex situations: Geophysics v. 45 pp. 1405-1488. GARDNER, G.H.F....

Unconventional Play Fracture Characterization Through Orthorhombic Depth Model Building

Guy Hilburn, Amit Pendharkar, William Keller, René Mott, Jorge Peinado, Austin Jumper, Victor Kriechbaum

Unconventional Resources Technology Conference (URTEC)

... velocity anisotropy can be seen in full azimuth seismic datasets as differential azimuthal moveout in image gathers. The typical seismic industry...

Advanced Reprocessing and Imaging: Enhancing Legacy Surveys

Dominic Fell, Shane Westlake, Richard Patenall, Jennifer Badry

Petroleum Exploration Society of Australia (PESA)

..., due to the limited moveout Figure 3 Residual well velocity correction shown at a well location (left) and as a difference exhibited by the events...

High-resolution angle gather tomography with Fourier neural operators

Sean Crawley, Guanghui Huang, Ramzi Djebbi, Jaime Ramos, Nizar Chemingui

International Meeting for Applied Geoscience and Energy (IMAGE)

... Summary Velocity model building (VMB) is among the most important problems is exploration geophysics, and it remains a challenge in many areas...

Nias Basin, NW Sumatra … New Insights into Forearc Structure and Hydrocarbon Prospectivity from Long-Offset 2d Seismic Data

Ian Deighton, M. Ma’ruf Mukti, Satish Singh, Tom Travis, Anthony Hardwick, Katie Hernon

Indonesian Petroleum Association

... by interpretation of images derived from stacking velocities based on a percentage of an initial input function (commonly referred to as ‘multi-velocity...

Data Enhancement from a 486-Channel Streamer

Bill Dragoset, Ken Larner

Pacific Section of AAPG

... spread configuration, and a nominal normal-moveout-velocity function along the seismic line. Accurate specification of the normal moveout velocity...

Three-Dimensional Control

G. E. Anderson

Oklahoma City Geological Society

... to calculate elevation and low-velocity-layer corrections. No geologist would consider interpreting an area without determining where the wells were...

Elastic Multi-parameter FWI Imaging – a North West Shelf undeveloped gas field case study

Fabio Mancini

Southeast Asia Petroleum Exploration Society (SEAPEX)

... diving waves is a well-established tool in the model-building workflow for producing high-resolution subsurface velocity models. However...

2.2 Basement Involved: 2.2.2 Rifts: A Half-Graben and Tilted Fault Block Structure in the Northern North Sea

A. C. Evans and D. N. Parkinson

AAPG Special Volumes

.... Offset weighted 275 m-10% 2,625 m-100% (902 ft-10% 8,612 ft-100%) Normal moveout correction from velocity analysis Static correction: Gun and cable...

Conditioning Prestack Seismic Data in the Offset-Azimuth Domain; #42462 (2019)

Ritesh Kumar Sharma, Satinder Chopra

Search and Discovery.com

... is not optimal. Instead of stacking the azimuthally-sectored normal moveout, or NMO, corrected traces at every CMP, we suggest generating supergathers using...

Deep Earth: Leveraging neural networks for seismic exploration objectives

Tariq Alkhalifah, Claire Birnie, Randy Harsuko, Hanchen Wang, Oleg Ovcharenko

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Figure 5: Resulting velocity profile after stacking of the predicted velocity from all shots of field data. The superimposed green line corresponds...

Considerations in Azimuthal Processing and Velocity Inversion for Unconventional Plays

Michael J. Perz, William Keller, Victor Kriechbaum

Unconventional Resources Technology Conference (URTEC)

... and analytic treatment of normal moveout velocity for anisotropic media: Geophysical Prospecting, 47, 117–148, doi:10.1046/j.13652478.1999.00120.x. Hilburn, G...

EXPLORATION PROBLEMS OF THE WILLISTON BASIN*

K. E. BURG

Montana Geological Society

.... The correct identification of the reflections in local areas where well and velocity control are not available presents a problem...