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The AAPG/Datapages Combined Publications Database

Showing 34,457 Results. Searched 200,357 documents.

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Geologically Constrained Seismic Imaging in Andean Thrust Belts, #42530 (2020).

Rob Vestrum,

Search and Discovery.com

... a better understanding of the subsurface velocity structure, and are therefore more delicate and sensitive to velocity errors. Unfortunately, complex...

2020

Web-Based Technologies for Real-time Directional Survey Quality Improvement

Jarrod S. DeVerse, Stefan Maus

Unconventional Resources Technology Conference (URTEC)

... (i.e. Δ B total, Δ Dip, and Δ G). The expected errors in B total, Dip, and G total are computed based off the same assumptions made by the tool code...

2016

Velocity Dispersion and Attenuation in Vibroseis Data

L. Flora Sun

Search and Discovery.com

... data are preferred because transmission seismograms are often easier to analyze than reflective (surface) seismograms. The effect of velocity dispersion...

Unknown

Velocity Dispersion and Attenuation in Vibroseis Data

L. Flora Sun

Search and Discovery.com

... data are preferred because transmission seismograms are often easier to analyze than reflective (surface) seismograms. The effect of velocity dispersion...

Unknown

Field Technique Design for Seismic Reflection Exploration

L. R. Denham

Dallas Geological Society

.... The minimum wavelength component is determined by a reflection’s apparent dip and frequency spectrum. Since wavelength equals apparent velocity divided...

1982

Velocity as a Problem in Mississippi

R. R. Phillips

GCAGS Transactions

... and be thoroughly familiar with the regional gradient. VELOCITY GRADIENT: We all use some form of time-depth curve, table or Brachistrochrone, in reducing our...

1951

Abstract: Multiattributes and Seismic Interpretation of Offshore Exploratory Block in Bahrain … A Case Study; #90254 (2016)

Suresh Thampi, Aqeel Ahmed, Yahya Al-Ansari, Ali Shehab, Ahmed Fateh, Anindya Ghosh, and Ghada Almoulani

Search and Discovery.com

... velocity models and depth conversion to overcome these challenges and better understand the subsurface structures. Seismic attribute analysis was carried...

2016

Maturation of Sediments Near Horizontal and Inclined Salt Sheets

K. Carter, I. Lerche

GCAGS Transactions

... m thick and 2000 m long buried to a depth of 2000 m moving horizontally at 100 m/Ma velocity. The dominant effect on maturity of the sediments...

1990

The Compressional Off-Structure Problem

R. E. Bischke

Houston Geological Society Bulletin

... that contains a steeper western limb and a more shallow eastern limb. Limb dips are confirmed by the surface dip data (Fig. 2a). At a depth of 1200 ft the well...

1994

Pre-Stack Imaging: Time or Depth? (Paper 25)

Carl Notfors, Peter Whiting, Geoff Mansfield

Geological Society of Malaysia (GSM)

... they handle lateral velocity variations. The depth algorithm comprehends any lateral velocity variation whereas the time algorithm assumes local...

2000

The Sediment Budget Estimator (SBE): A process model for the stochastic estimation of fluxes and budgets of sediment through submarine channel systems

Joris T. Eggenhuisen, Mike C. Tilston, Christopher J. Stevenson, Stephen M. Hubbard, Matthieu J.B. Cartigny, Maarten S. Heijnen, Jan de Leeuw, Florian Pohl, Yvonne T. Spychala

Journal of Sedimentary Research (SEPM)

... section is determined after intersecting the channel margins with channel depth. D) The bank angle is set to 10° throughout this paper. Velocity...

2022

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)

... are documented to show the effect of velocity gradient on the depth of investigation with variable model dimensions. Three model dimensions were compared from...

2024

QUICK LOOK TECHNIQUES: A Method for Predicting Thick Sand Intervals from Seismic Sections

Subsurface Consultants & Associates, Inc.

Houston Geological Society Bulletin

... depth using vintage seismic data The resolution of the method is primarily dependent on the ability of the interpreter to pick changes in fault dip...

1994

Sediment Movement in Relation to Current Velocity

Henry W. Menard

Journal of Sedimentary Research (SEPM)

.... Experimental errors inolved in these determinations of velocity have been found to be less than about three per cent (Menard, 1949.) COMPETENT VELOCITY...

1950

An automatic velocity picking method based on object detection

Ce Bian, Weifeng Geng, Ping Yang, Pengyuan Sun, Guiren Xue, Haikun Lin

International Meeting for Applied Geoscience and Energy (IMAGE)

... of Exploration Geophysicists and the American Association of Petroleum Geologists REFERENCES Biswas, R., and M. K. Sen, 2018, Stacking velocity estimation...

2022

Oriented Core: Its Use, Error, and Uncertainty

R. A. Nelson , L. C. Lenox , B. J. Ward, Jr.

AAPG Bulletin

...° in strike, ± 1 3/4° in dip direction, and ± 2½° in dip magnitude. The multiple analysts had reproducibility errors of ± 4° in strike, ± 3 3/4...

1987

Optimized stacking of migrated offset vector tiles for Tengiz PSDM image enhancement

Tianjiang Li, King Sim Lee, Bin Gong, Kai Yang, Kai Zhang, Assem Bibolova, Zhanibek Katrenov

International Meeting for Applied Geoscience and Energy (IMAGE)

...Optimized stacking of migrated offset vector tiles for Tengiz PSDM image enhancement Tianjiang Li, King Sim Lee, Bin Gong, Kai Yang, Kai Zhang, Assem...

2022

Abstract: Innovative Multi-Method Steering Approach To Optimize A Challenging Thin Reservoir Well Injectivity; #90319 (2018)

Magdi Bazara

Search and Discovery.com

... was the target for a successfully injector well in this field. Challenges to the landing of such a well includes depth, thickness, and dip uncertainties...

2018

Seismic Interpretation of the Casper Arch Thrust, Tepee Flats Field, Wyoming

R. Randy Ray, Charles R. Berg

Rocky Mountain Association of Geologists

... of the high velocity overthrust Precambrian granite as a result of velocity pull-up effect. Skeen and Ray (1983) interpreted the crest of the Tepee Flats...

1985

5D Interpolation Adds Value at the Drill Bit for a Texas 3D Seismic Survey

K. Rene‘ Mott, William Keller, Mike Perz

GCAGS Transactions

... that other reprocessing steps such as careful velocity analysis have had a material effect on image improvement. After final processing, the resulting PSTM...

2016

Normal Geothermal Gradient in United States: DISCUSSION

Alfred C. Lane

AAPG Bulletin

... to the pure instrumental error than to the geological and physical factors: the errors are assumed to vary inversely as the square root of the depth...

1935

Abstract: The Correlation of Bulk Density, Porosity and Velocity of Cores from Varies Depth in CTW-1 Well of Kati Formation in UTP Campus, Seri Iskandar, Perak, Malaysia

Norsyafiqah Binti Salimun, Abdul Ghani Rafek, Khairul Arifin Mohd. Noh

Geological Society of Malaysia (GSM)

...Abstract: The Correlation of Bulk Density, Porosity and Velocity of Cores from Varies Depth in CTW-1 Well of Kati Formation in UTP Campus, Seri...

2017

Seismograph Interpretation as Related to Changes in Sedimentary Section in West Texas and New Mexico

John Daly , C. N. Page

AAPG Bulletin

... been observed in a reflection survey, and the data computed at a constant velocity of 14,000 feet per second, we would have shown a dip of 1,750 feet...

1952

A Towed Streamer EM System Performance Case Study

Folke Engelmark, Allan McKay, Johan Mattsson

Indonesian Petroleum Association

...-signal. The EM streamer has effectively 26 offsets from 0 - 7,700 m and it is towed at a depth of 50 - 100 m. Currently the acquisition system...

2013

Improvement of Seismic Tomographic Imaging by Downward Continuation and Modified SIRT

Teuku A. Sanny, D. Santoso, D. Dahrin, Fatkhan, Alfian B.

Indonesian Petroleum Association

... drastically if we reconstruct the image by BPT as an initial model. Using prior knowledge of the velocity and depth, the Downward Continuation Principle...

1996

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