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The AAPG/Datapages Combined Publications Database

Showing 30,612 Results. Searched 187,994 documents.

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Time Depth Conversion of a Prospect With Near-Surface Velocity Anomalies Using Stacking Velocites and PSDM Velocities: A Comparison

Tan Boon Hua, Lothar Schulte

Indonesian Petroleum Association

...Time Depth Conversion of a Prospect With Near-Surface Velocity Anomalies Using Stacking Velocites and PSDM Velocities: A Comparison Tan Boon Hua...

2011

Critical Analysis of Stack Seismic Systems: DISCUSSION

Richard H. Hopkins

AAPG Bulletin

...--to the point where its effect is less than other random errors in the statics, velocity, detector plants, etc. I believe the crux of the matter...

1967

AAPG Memoir 76, Chapter 18: Velocity Estimation for Pore-Pressure Prediction

David W. Bell

AAPG Special Volumes

..., display, and analysis influences the way data is manipulated Figure 29. Removing effect of water depth on stacking velocity reveals common...

2001

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 depth using an average velocity map or a series of interval velocity maps. This process is adequate in areas of low dip without lateral...

1999

A Comparison of Depth-Conversion Methods in the Gulf of Mexico

Melvan D. Carter, Gary R. Hyatt

GCAGS Transactions

...-conversion error as a function of layer, depth and space. While the results cannot be generalized blindly, the seismic average-velocity technique...

1990

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

Andy Furniss

Indonesian Petroleum Association

... techniques such as stacking velocity inversion and coherency inversion are equally applicable to depth conversion projects as they are to pre-stack...

2000

Chapter Ten-part 2: Depth Conversion

Leslie R. Denham, Dave K. Agarwal

AAPG Special Volumes

... the measurement of stacking velocity. One simplification shows that the stacking velocity is equal to the RMS velocity divided by the cosine of the dip...

2011

The Application of Image Processing Techniques for Complex Structures

V. Sudhakar, I. T. McMahon

Indonesian Petroleum Association

... dependence and raypath effects due to depth-dependent interval velocities. DMO corrects for the dip dependence of moveout and inherently applies a migration...

1987

A Comparison of Depth Conversion Methods in Buntal Gas Field, Block B, Natuna Sea, Indonesia

Irfan Yuliandri Syukri, John Hughes, Medi Medianesterian

Indonesian Petroleum Association

... analysis shows residual RMS depth errors for each method are similar. For Beta-0, using Dix corrected stacking velocity gives the smallest error (11...

2014

Possible Causes of Velocity Mis-Ties

R. A. Broding

Oklahoma City Geological Society

...% or better, with a maximum error of 5%. This data was taken from West Texas, New Mexico, Wyoming and Colorado. ERRORS IN VELOCITY LOGGING Instrumental...

1961

Lateral Changes in Seismic Velocities and Their Effect on Depth Prediction

J. Pinchin, M. Bayly

Petroleum Exploration Society of Australia (PESA)

... many seismic velocity analyses on a tight grid of lines, statistical errors in these velocity measurements can be reduced. An analysis of stacking...

1989

Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014)

J. Patrick Butler and Randy Kolesar

Search and Discovery.com

...Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014) J. Patrick Butler and Randy Kolesar AAPG Search and Discovery Article #90187...

2014

Critical Analysis of Stack Seismic Systems

L. E. Nugent, Jr.

AAPG Bulletin

... techniques more seriously. Even with similar sediments, velocity values normally increase with increasing depth because of compaction and cementation...

1967

A new system for efficiently acquiring vertical seismic profile surveys

Tim Dean, Nghia Nguyen, Brenton Armitage, Huw Rossiter

Petroleum Exploration Society of Australia (PESA)

... error allowed to achieve a velocity error of 1%, whilst Figure 3b shows the velocity error resulting from different depth interval errors assuming...

2018

Limitations of Reflection Seismograph

L. E. Nugent, Jr.

AAPG Bulletin

... is of the order of instrumental or low-velocity zone correction errors. In any event, reflections indicating dip of 5° or more or horizontal displacements...

1953

A Comparison of the Various Methods of Dip Migration

H. Bruce Mayo

Oklahoma City Geological Society

... position of the reflection source. This dip arm was calibrated with a time -- depth scale, equivalent in average velocity to the given instantaneous...

1958

AAPG Memoir 76, Chapter 19: The Future of Pressure Prediction Using Geophysical Methods

Alan R. Huffman

AAPG Special Volumes

.... Small timing errors inherent in picking each event can cause significant uncertainty in the interval velocity where the total time separation...

2001

Derivation of Seismic Depth Sections

H. Buchholtz, W. Houba

Geological Society of Malaysia (GSM)

... velocity distribution. The knowledge of a reliable velocity model is required for this depth conversion. Stacking velocities are not recommended to be used...

1987

Chapter 10-part 3: 3-D Depth Image Interpretation

William L. Abriel, Joseph P. Stefani, Robert D. Shank, David C. Bartel

AAPG Special Volumes

.... One very important concept that needs to be understood is the sensitivity of seismic imaging to variations in overlying earth velocity, and why depth...

2011

Abstract: An Analysis of the Benefits of 3D Pre-Stack Time Migration (Paper 11)

Peter Whiting

Geological Society of Malaysia (GSM)

... events will need a slower stacking velocity. Hence the stacking velocity is multivalued and stacking much compromise at least one of these events...

1996

Impact of Pre-Stack Depth Migration on the Anama Prospect, Papuan Foreland Basin

K. Bradey

Papua New Guinea (PNG) Petroleum Convention Proceedings

... used in the early 461 attempts at depth conversion. Methods that rely on stacking velocities include the Dix method and stacking velocity inversion...

2000

Abstract: A Case History of Velocity Problems in the Shadow of a Large Growth Fault in the Frio Formation, Texas Gulf Coast

James L. Allen and J. M. Bruso, Jr.

Houston Geological Society Bulletin

... that over 200 ms of apparent seismic dip in the shadow of the growth fault was false. When we used stacking velocities to perform a depth conversion...

1989

Granite and Limestone Velocity Determinations in Arbuckle Mountains, Oklahoma

B. B. Weatherby, W. T. Born, R. L. Harding

AAPG Bulletin

... within observational errors and yield a value of 17,950 ft./sec. for the longitudinal wave velocity. The data taken over the shorter span show...

1934

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

E. W. Peikert

AAPG Special Volumes

... for each sequence. Calibrated or residual (corrected for depth effect) velocity maps can be compared with maps of depositional environments or seismic...

1985

The Use of Modern 3D Seismic Data Processing Techniques, 5D Interpolation, and Anisotropic PSTM to Improve Existing 3D Data in South Louisiana Data—Pulling the Scales from our Eyes; New Truth from Existing Datasets

John Asma, John Stevens, Sukhdev Hyare, Dave Spaulding

GCAGS Transactions

... to fill in the missing data. Figure 3 shows the effect of a 5D dip-steered interpolation on a cross-line from a 3D survey. The data on the left...

2013

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