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The AAPG/Datapages Combined Publications Database

Showing 8,836 Results. Searched 187,994 documents.

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Star: Shallow Time Anomaly Replacement

Michael O. Marcoux, Lee Lu

Southeast Asia Petroleum Exploration Society (SEAPEX)

... general principles, it is known that the arrival time of the event is given by the square-root of an even polynomial in the offset. This moveout...

1982

Migration Velocity Analysis by Migration of Velocity Spectra

Craig J. Beasley, Rolf Klotz

Southeast Asia Petroleum Exploration Society (SEAPEX)

...., 1984, Dip moveout by Fourier transform: Geophysics, 49, 741–757. Kim, Y. C., and Gonzalez, R., 1991, Migration velocity analysis with the Kirchhoff...

1992

Abstract: Migration of Velocity Spectra: An Example from the Philippines

Craig J. Beasley, Rolf Klotz

Geological Society of Malaysia (GSM)

... the migration velocity is to minimize the effects of dip and azimuth by applying dip moveout (DMO) to the data. However, velocity derived from DMO corrected...

1991

Abstracts: Converted Wave Processing in the EOM Domain; #90173 (2015)

Thais A. Guirigay and John B. Bancroft

Search and Discovery.com

... a converted wave velocity Vc from the hyperbolic moveout on a CSP gather. Moveout (MO) correction and stacking completes the prestack migration. We obtain Vc...

2015

What is Horizontal Resolution?

L. R. Denham, R. E. Sheriff

Indonesian Petroleum Association

... and POGGIAGLIOLMI, E., 1977, Stratigraphic modelling and interpretation – geophysical Principles and techniques. in Payton, C.E., (ed.) Seismic stratigraphy...

1981

An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement

Andy Furniss

Petroleum Exploration Society of Australia (PESA)

... to differ. This produces inaccurate results from the Dix equation. In 2D, a simple correction to remove the effect of structural dip, e, can be applied...

1999

An Interpreter's Guide to Improvements in Depth Imaging Through Model-Based Velocity Estimation and Refinement

Andy Furniss

Indonesian Petroleum Association

... a simple correction to remove the effect of structural dip, θ, can be applied using the formula from Levin (1971) as shown in Equation (2). The Levin...

2000

Use of Seismic-Derived Velocities for Stratigraphic Exploration on Land: Seismic Porosity and Direct Gas Detection: Chapter 4

Norman S. Neidell, J. H. Beard, Ernest E. Cook

AAPG Special Volumes

...; geophysical principles and techniques: AAPG Continuing Education Note Series 13, 141 p. Neidell, N. S., 1982, Technical impact of geophysics, in Techniques...

1985

Field Technique Design for Seismic Reflection Exploration

L. R. Denham

Dallas Geological Society

... involve more than 30–40% trace stretching in the normal-moveout correction; this corresponds to an offset approximately equal to the depth...

1982

Extending the Resolution of Seismic Reflection Exploration

L. R. Denham

Pacific Section of AAPG

... than 15% trace stretching in the normal-moveout correction; this corresponds to an offset approximately equal to the depth of a reflection...

1980

Current Trends in Geophysics

H. E. Stommel, J. M. Graul

Indonesian Petroleum Association

... time differential between the the arrival of the event at the near and far phone of the group. This time shift amounts to "normal moveout" across...

1978

The Need for Seismic Dip Migration

W. B. Robinson.

Oklahoma City Geological Society

...The Need for Seismic Dip Migration W. B. Robinson. 1958 297 300 When we fire a charge of dynamite in a shothole, we generate waves that go outward...

1958

Assessment of a Marcellus Shale Prospect Using Seismic, Microseismic, and Completions Data

Scott Singleton, Mark Suda

GCAGS Transactions

... mutes so that we can use the maximum offsets possible for AVO inversion. This commonly requires the use of spectral balancing to remove normal moveout...

2012

Horizontal Distance Corrections and Plotting Errors in Stadia Surveying: GEOLOGICAL NOTES

Richard L. Threet

AAPG Bulletin

... for external-, negligible for internal-focusing instruments. Accordingly, the horizontal distance (or horizontal distance correction) varies directly...

1953

A History of the Principles and Methods of Mechanical Analysis: ERRATUM

W. C. Krumbein

Journal of Sedimentary Research (SEPM)

...A History of the Principles and Methods of Mechanical Analysis: ERRATUM W. C. Krumbein 1933 Vol. 3 No. 2. (August), An inaccurate statement...

1933

An Efficient Workflow for Geological Characterization in Unconventional Reservoirs from a New Through-the-Bit Logging Electrical Micro-Imaging Tool, #42334 (2018).

Shiduo Yang, Patrick McBride, Josselin Kherroubi, Alexis He, Isabelle Le Nir, Daniel Quesada, Redha Hasan AI Lawatia, Andy Wray,

Search and Discovery.com

..., either because of the depositional environment variation or because of incorrect dip picking. Based on the above principles, the formation correlation...

2018

Integration of Vertical Seismic, Surface Seismic, and Well-log Data at the Mallik 2L-38 Gas-hydrate Research Well, Mackenzie Delta, Canada

M. W. Lee, T. S. Collett, W. F. Agena

AAPG Special Volumes

... number and frequency (FK) filtering, (7) normal-moveout correction and common-midpoint (CMP) stacking, (8) poststack second zero-crossing deconvolution...

2009

Making Interpretable Images from Image Logs

Birger Hansen, Janusz Buczak

AAPG Special Volumes

... and processing are discussed. Aspects of image interpretation, particularly the mechanics of dip picking, are also briefly considered. Bearinger, D., and K...

2010

Constant Velocity Case

A. J. Oden

Oklahoma City Geological Society

... on the Hunton than our map said it would be; or vice-versa, except that we're seldom asked about it if the vice is versa. The first approach to dip...

1958

Stratigraphic Velocity Interpretation: National Petroleum Reserve--Alaska: Chapter 12

E. W. Peikert

AAPG Special Volumes

..., or porosity. STRATIGRAPHIC VELOCITY PRINCIPLES Interval Velocity Estimation Figure 1 represents a schematic seismic section. The solid lines represent...

1985

The Determination of Formation Thicknesses by the Method of Graphical Integration

E. L. Ickes

AAPG Bulletin

... a method for estimating with considerable accuracy the thickness of strata exposed in any section at the surface. The dip of the beds may vary from place...

1925

Origin of Rollover (1)

HONGBIN XIAO and JOHN SUPPE

AAPG Bulletin

... bends. Figure 2 is a detail of a dip--moveout seismic line showing a sharp bend in the reflectors of the hanging wall. We interpret this bend...

1992

Geomechanical Approach to Resolve Severe Velocity Variations and Remove Image Distortions below Rugose Seafloor (Paper A16)

S. Birdus, A. Artyomov, L. Li, S. Xin

Geological Society of Malaysia (GSM)

..., so we do not have enough offsets to estimate moveout immediately below the seafloor and (b) the anomalies can have significant magnitudes (up to more...

2012

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

TED COUGHRAN

Fort Worth Geological Society

... filtering, spectral balancing, migration before stack (MBS), and dip moveout (DMO). Sophisticated programs that glean information from waveform...

1989

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