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The AAPG/Datapages Combined Publications Database

Showing 34,455 Results. Searched 200,293 documents.

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Geological Factors Influencing Porosity Estimates From Velocity Logs

Roberto Sarmiento

AAPG Bulletin

... in this paper. Depth: The effect of depth on velocity has been long recognized by geophysicists (Faust, 1951). It is one of the main factors defining...

1961

PSDM for Unconventional Reservoirs? A Niobrara Shale Case Study

Morgan P. Brown, Joseph H. Higginbotham, Dave List, Chris Lang

Unconventional Resources Technology Conference (URTEC)

... to the success of depth migration. We began with an interval velocity derived from prestack time migration (PSTM). We utilized a WEM algorithm...

2013

PSDM for unconventional reservoirs? A Niobrara Shale case study; #80405 (2014)

Morgan P. Brown, Joseph H. Higginbotham, Cosmin Macesanu, Oscar E. Ramirez, Dave List, Chris Lang

Search and Discovery.com

... the magnitude of AVAZ response observed in the data. PSDM Velocity Analysis Rigorous, iterative velocity update proves key to the success of depth migration. We...

2014

The Role of Regional Seismic Surveys in the Exploration of the North West Shelf

J. Ostby, C. Johnston

Petroleum Exploration Society of Australia (PESA)

... velocity stacking (Hampson, 1986; Russell et al., 1990) where reflection or primary events and/or multiples are w WATER BOTTOM Figure 2: Multiple...

1994

Abstract: Derivation of Seismic Depth Sections

H. Buchholtz, W. Houba

Geological Society of Malaysia (GSM)

... of Malaysia (GSM) 284 the underlying velocity model. A simple depth conversion of the time scale is a very limited procedure and fails completely...

1985

Advances in Depth Imaging Technology: Rock Physics Guided Migration of Seismic Data in 3D

Nader C. Dutta, Sherman Yang, Jianchun Dai

Indonesian Petroleum Association

... GUIDED MIGRATION OF SEISMIC DATA IN 3D Nader C. Dutta* Sherman Yang* Jianchun Dai* ABSTRACT Conventional approaches to build velocity models for depth...

2012

Abstract: Case Study of the Effect of Grid-Search Objective Function in Microseismic Source Location; #90255 (2017)

Luolan Li, Yuyang Tan, Chuan He, Pan Deng

Search and Discovery.com

...Abstract: Case Study of the Effect of Grid-Search Objective Function in Microseismic Source Location; #90255 (2017) Luolan Li, Yuyang Tan, Chuan He...

2017

Petroleum Systems and the Role of Multi-Dimensional Basin Modeling

D. H. Welte, T. Hantschel, B. Wygrala

Indonesian Petroleum Association

... depth conversion inaccuracies can then be performed as a routine option. An investigation of possible errors in the velocity values indicated an error...

1997

Areas Where Mis-Tie Occurs Between Two-Receiver Velocity Log Data and Check Shot Data

Robert P. Nolting

Oklahoma City Geological Society

...Areas Where Mis-Tie Occurs Between Two-Receiver Velocity Log Data and Check Shot Data Robert P. Nolting 1961 129 130 DISCUSSION Analysis of the two...

1961

Interpreting Sedimentary Growth Structures from Well Log and Seismic Data (With Examples)

Richard E. Bischke

AAPG Bulletin

... to interpret, less subject to data fluctuations and random measurement errors, and therefore more accurate than existing techniques. CHANGE IN DEPTH VS...

1994

Analysis of High Resolution Seismic Data: Section 2. Application of Seismic Reflection Configuration to Stratigraphic Interpretation

Herman C. Sieck, George W. Self

AAPG Special Volumes

... the speed of sound in the materials (interval velocity) is known, the depth to each interface Table 1. Summary of Acoustic Systems. End_Page 354...

1977

Aspects of Seismic Resolution: Chapter 1

R. E. Sheriff

AAPG Special Volumes

.... Velocity errors 5. Stacking limitations 6. Two-dimensional assumption 7. Other approximations and errors. None of these constitute inherent limitations...

1985

II. Migration to Remedy Geometric Distortions

Robert E. Sheriff

AAPG Special Volumes

..._Page 21------------------------- effect assuming constant velocity, which in his case was not a bad assumption). Some migration methods are: swinging...

1981

Laterally varying structure and kinematics of the Molasse fold and thrust belt of the Central Eastern Alps: Implications for exploration

Ralph Hinsch

AAPG Bulletin

... conversion has been achieved by using velocity information from seismic datawell tying and cokriging of the root-mean-square stacking velocity field...

2013

Geological Cross Sections: Part 6. Geological Methods

Jeremy M. Boak

AAPG Special Volumes

... is a critical tool to demonstrate the velocity structure, and consistency of conversion of time to depth. Lines connecting correlative formation or zone tops...

1992

Diagenetic and Seismic Concerns Associated with Interpretation of Deeply Buried Mobile Shales

R. J. Day-Stirrat, A. McDonnell, L. J. Wood

AAPG Special Volumes

..., depth focusing analysis, and migration velocity scans to further constrain the depth image, generally removing the fault-shadow effect (Gochioco et al...

2010

Analysis of Scale Exaggeration on Seismic Profiles (1)

DONALD S. STONE

AAPG Bulletin

... in space. Since velocity usually increases with depth, vertical exaggeration generally decreases with increasing TWT; conversely, horizontal exaggeration...

1991

Application of Zero Offset 2D CRS-Stack Method for Low Fold Data: Synthetic and Real Data Examples

R. Sule, A. Hendriyana, P. D. Anggraini, Fatkhan, Alfian, Sardjito, Waluyo, Adriansyah

Indonesian Petroleum Association

... be done carefully in the conventional stacking method. In contrary, the CRS-stack method does not need velocity function to obtain a stack section...

2009

Seismic Reflections from a Lau Basin Magma Chamber

Janet L. Morton, Norman H. Sleep

Circum Pacific Council Publications

... high. The effect of using a lower interval velocity would be to decrease the computed depth to the magma chamber, but would leave the flat shape...

1985

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

Velocity Logging and Its Geological and Geophysical Applications

H. R. Breck, S. W. Schoellhorn, R. B. Baum

AAPG Bulletin

..., pay zones are usually competent and do not wash, so that the caliper effect can be neglected. In the average borehole the sum of the recorded errors...

1957

EXTENDED ABSTRACT: Applications of Wave Imaging Technologies to Improve Deep Gulf Prospecting

Morgan P. Brown, Joseph H. Higginbotham, Cosmin Macesanu, Oscar E. Ramirez

GCAGS Transactions

... section in the Gulf Coast normally exhibits a simple, depth-variable velocity profile, and prestack time migration (PSTM) methods generally produce...

2010

Seismic Studies in the Church Rock Uranium District, Southwest San Juan Basin, New Mexico

William T. Phelps, Robert S. Zech, A. Curtis Huffman Jr.

AAPG Special Volumes

... program. Before the final time variant filtering, wave equation migration and a filter test were run. As a final step, velocity (fan or dip) filtering...

1986

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