Seismic velocity … A strong identifier of gas prospects

Martin Essenfeld, Rafael Sandrea

GEO ExPro Magazine

...Seismic velocity … A strong identifier of gas prospects Martin Essenfeld, Rafael Sandrea F E R E M Y P G EX L O A T U R E S SXUXM P H Y S I C S O...

Impact of full-wavefield inversion (FWI) based high-resolution model building and Q imaging on exploration and development at Guyana Stabroek

Fuxian Song, Patrick Monigle, Jia Yan, Vikas Gudipati, Xu Li, Sunwoong Lee, Sam Hemmings-Sykes, Ashlika Persaud, James Pape, Lee E Gilchriest, Amir Abdi, Emily Lalli, Anupama Venkataraman, Ramesh Neelamani, Steve Knapp, Krista Solvason

International Meeting for Applied Geoscience and Energy (IMAGE)

... Knapp (Hess Corporation), and Krista Solvason (CNOOC International) Summary We showcase our subsurface velocity model building and imaging approach...

Statistical imaging through strongly scattering near-surface with path summation techniques

Andrey Bakulin, Ilya Silvestrov, Maxim Protasov, Dmitry Neklyudov

International Meeting for Applied Geoscience and Energy (IMAGE)

... subsurface imaging without the need for an accurate velocity-depth model. This method utilizes an ensemble of random near-surface models that reflect...

Principles and Techniques of VSP Data Processing

A.A. Tabakov, V.N. Ferentsi, H.Garvini

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... of various geological problems even in very complicated conditions. The way to achieve this and take all of the VSP advantages (such as efficient velocity...

High-resolution passive surface wave tomography using natural and anthropogenic noise sources in a mineral exploration context

Daniela Teodor, Charles Beard, Laura Pinzon-Rincon, Aurlien Mordret, Franois Lavou, Sophie Beaupretre, Dan Hollis, John McBride, Pierre Bou, Florent Brenguier

International Meeting for Applied Geoscience and Energy (IMAGE)

... dispersion curves representative for limited sectors of the investigated area. We invert the average dispersion curves to S-wave velocity models using...

The Future of Marine Seismic Acquisition?

Luc Haumonté

GEO ExPro Magazine

... of the processing gain, which can be improved with a 16 km higher coverage. 16km Another area of improvement over the years is signal 8 km 8km spectrum...

Study of Seismic Anomalies in the Frequency Spectrum as a Hydrocarbon Reservoir Characterizer; #42596 (2025)

Argenis Pelayo, Ivan Omaña

Search and Discovery.com

...Study of Seismic Anomalies in the Frequency Spectrum as a Hydrocarbon Reservoir Characterizer; #42596 (2025) Argenis Pelayo, Ivan Omaña Click to View...

Application of high-resolution reflection seismology to eastern Kansas cyclothems

Ralph W. Knapp

Kansas Geological Society

... is an example. They are computationally convenient, so we use them frequently in models. They also have the highest resolution for a given amplitude spectrum...

Abstract: Deterministic Marine Deghosting: Tutorial and Recent Advances; #90224 (2015)

Mike J. Perz and Hassan Masoomzadeh

Search and Discovery.com

... of notches in the amplitude spectrum of the ghosting operator, with rapid variation in the phase spectrum occurring in the vicinity of these notches...

Temporal Resolution of Depositional Processes in the Gulf Coast Tertiary

John A. Lopez

Houston Geological Society Bulletin

... the "ancient" and "modern" there is an observational gap. The composite of all of these modern and ancient processes is the depositional spectrum. Clearly...

Hydrodynamic Properties and Grain-size Characteristics of Volcaniclastic Deposits on the Mid-Atlantic Ridge North of Iceland (Kolbeinsey Ridge)

Reinhard Oehmig, Hans-Joachim Wallrabe-Adams

Journal of Sedimentary Research (SEPM)

... spectrum in which they are found. Likewise, it is not possible to ascertain a positive correlation between settling velocity and particle size...

The Role of Statics Application in the Imaging of Sub-Surface in Fold Belt Areas, #40746 (2011)

Arun Kumar Arya, Bharat Chandra Joshi, Narinder Pal Singh,

Search and Discovery.com

... of velocity analysis. A velocity model was conceived based on the previously mentioned velocities and picked semblances in velocity spectrum. The velocity...

Effect of near offset seismic data in shallow subsurface modeling using full-waveform inversion

Md Iftekhar Alam, Salman Abbasi

International Meeting for Applied Geoscience and Energy (IMAGE)

... modeling. Lack of coherent reflections, random noise, clipped waveforms, and variable velocity gradients are some of the factors highly driven...

Ekofisk: First of the Giant Oil Fields of Western Europe: REPLY

Owen D. Thomas , L. K. S. Popham

AAPG Bulletin

...), "The Ekofisk field was found by a well drilled on a velocity high, not a structural high. It turned out to be nearly an edge well over 400 ft (122 m) lower than...

Processing the KTK 3D seismic Survey for Azimuthal Information: San Joaquin Basin, California; #41649 (2015)

M. Lee Bell and Gary Myers

Search and Discovery.com

... horizontal velocity anisotropy (HTI) in both P– and S-waves (see slide 9). The velocity parallel to fractures, for example, is fast (see slide 10...

ABSTRACT: Lankahuasa Prospect: Open Door to Deeper-Water Exploration in Offshore Veracruz Area; #90007 (2002)

Rosa Adriana Anguiano-Rojas

Search and Discovery.com

... and the well drilled (Figure14 and Figure15). The tuning effect was calculated using the picked interval velocity (Figure 8) and the amplitude spectrum...

Migration Velocity Analysis by Migration of Velocity Spectra

Craig J. Beasley, Rolf Klotz

Southeast Asia Petroleum Exploration Society (SEAPEX)

...Migration Velocity Analysis by Migration of Velocity Spectra Craig J. Beasley, Rolf Klotz 1992 29 32 Chambers, R., Jakubowicz, H., Larner, K...

An Analysis of Factors Controlling Deviations in Hydraulic Equivalence in Some Modern Sands

Richard Lowright, E. G. Williams, Frank Dachille

Journal of Sedimentary Research (SEPM)

... equilibrium; as grain size increases, the heavy: light settling velocity ratio decreases, a condition which can be predicted from pickup equations...

Aspects of Rock Physics From Laboratory and Log Data that are Important to Seismic Interpretation: Section 1. Fundamentals of Stratigraphic Interpretation of Seismic Data

A. R. Gregory

AAPG Special Volumes

... for explaining observed relations. Correlations between velocity, porosity, density, mineral composition, and geologic age, and their dependence on pressure...

New Data Reveals Sub-Salt Levantine Basin

Øystein Lie, Per Helge Semb

GEO ExPro Magazine

... for the pressure field are exactly opposite to the peaks and notches for the particle velocity field, the receiver notches in the amplitude spectrum...

Seismic simulations of experimental strata

Lincoln Pratson, Wences Gouveia

AAPG Bulletin

... exploration. In the method, the digital photos are transformed into models of acoustic velocity and bulk density, which are then input into algorithms...

Hydraulic Factors Controlling the Shape of Laminae in Laboratory Deltas

Alan V. Jopling

Journal of Sedimentary Research (SEPM)

... of the stream. The corresponding velocity is the threshold velocity. At the other end of the spectrum both velocity and bed tractive stress are relatively high...

Abstract: Challenges in Seismic Monitoring of Flow through Fractured Carbonates, by Laura J. Pyrak-Nolte, Weiwei Li, and Christopher Petrovitch; #120034 (2012)

Search and Discovery.com

Building high-resolution models and synthetic seismic data to evaluate interpretation scenarios

Tiago Santos Cabral, Rodrigo Lopes Fernandes, Daina Popic Bendoraitis, Josair Estrela Gonalves Junior, Luiz Alberto Santos

International Meeting for Applied Geoscience and Energy (IMAGE)

..., Petrobras Summary Building suitable velocity models is often a challenging task in projects that involve seismic modeling. We present a simple workflow...

High resolution imaging using multiples „ A North Sea case study

Chandan Kumar, Rodney Johnston, Petr Jilek, Xiaolei Song, Mikhail Davydenko

International Meeting for Applied Geoscience and Energy (IMAGE)

... waveform inversion (FWI) velocity model can be used to describe wave propagation effects. Thus, it is a closed-loop imaging process that iteratively...