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The AAPG/Datapages Combined Publications Database

Showing 20,630 Results. Searched 200,685 documents.

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Imaging Beneath Complex Structure: Case History: ABSTRACT

Ken Larner, Bruce Gibson, Ron Chambers

AAPG Bulletin

...-faulted interface. Wavefront distortion introduced by this feature gives rise to distorted reflections from depth. Even with interval velocity known...

1981

Imaging Beneath Complex Structure: A Case History: ABSTRACT

Bruce Gibson, Ken Larner, Ron Chambers

AAPG Bulletin

... introduced by this feature gives rise to distorted reflections from depth. Even with interval velocity known perfectly, no velocity is proper for time...

1983

Porosity-Profile Determination from Electric Logs

T. R. Wright , Sylvain J. Pirson

AAPG Bulletin

... of resistivity ^rgrm (approximately equal End_Page 299------------------------------ to mud resistivity at that depth and temperature) the limestone logging...

1952

Origin of overpressure and pore-pressure prediction in the Baram province, Brunei

Mark R. P. Tingay, Richard R. Hillis, Richard E. Swarbrick, Chris K. Morley, Abdul Razak Damit

AAPG Bulletin

...) depth lie off the loading curve (Figure 7). However, the velocity-effective stress values return to the loading curve in the highly overpressured...

2009

A new reverse time migration denoising method based on diffusion filtering with X-shaped denoising operator

Chongpeng Huang, Yingming Qu, Zhenchun Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... categories of prestack depth migration methods. The first category is based on ray theory, such as Kirchhoff migration (Kuo and Dai, 1984...

2022

Integrating Surface Seismic, Microseismic, Rock Properties and Mineralogy in the Haynesville Shale.

Neil Peake, Gabino Castillo, Norbert Van de Coevering, Simon Voisey, Antoine Bouziat, Kevin Chesser, Guy Oliver, Chi Vinh Ly

Unconventional Resources Technology Conference (URTEC)

... attributes by the integration of other data types and sources: such as microseismic and mineralogy from x-ray scanning of cuttings. APPLICATIONS : Sweet Spot...

2014

Integrated Geo-Computational Approach to Identify By-Passed Oil: A Case Study in Seruni Field, Sumatra

Muhammad Fauzi, Hazairin

Indonesian Petroleum Association

... at each depth and also interpolating temperature and pressure, from top to bottom of these wells. Some data such as NPHI, Density and Gamma Ray (GR) Logs...

2003

Microseismic Calibration of Surface Seismic Brittleness Estimates: Application to a Barnett Shale Survey; #80623 (2017)

Roderick Perez-Altamar, John Henry Alzate, Amanda Trumbo, Kurt Marfurt

Search and Discovery.com

... not, suggesting that failure, and hence the number of fractures, is not a linear function of brittleness. References Cited Alzate, J.H., and D...

2017

Fault Interpretation Problems in the Southeast Barrow Sub-Basin

R. K. Whyte

Petroleum Exploration Society of Australia (PESA)

... several major steps. With fault offset these steps cause lateral velocity contrasts on the fault plane, called velocity windows. Normal incidence ray...

1994

Potential Field Data Guided Seismic Forward Modelling of Basement Structures: A Case Study from Offshore Nile Delta Basin

Said Hanafy, Shastri L. Nimmagadda, Sharaf Eldin Mahmoud

Petroleum Exploration Society of Australia (PESA)

... stacking velocity data and depth values interpreted from gravity and magnetic field data are used in the modelling process. The uncertainty in modelling...

2016

Logging and Correlation Techniques in the Paradox Basin

G. F. Chambliss, J. L. Hallman

Utah Geological Association

... in conjunction with a Gamma Ray, we have: A porosity device. A good correlation tool. Velocity data for the geophysicist. A means of perforating depth...

1958

Petrophysics of Oil Reservoirs in the Eromanga Basin, South Australia

D. I. Gravestock, E. M. Alexander

Petroleum Exploration Society of Australia (PESA)

... by porosity from the density and sonic logs. Normalised shale volume cannot be calculated by linear interpolation between maximum and minimum gamma ray values...

1989

Numerical Evaluation of Bulk Geomechanical Properties of Fractured Coal with Changing Net Effective Stress Conditions

Travis R. Mitchell, Ruizhi Zhong, Ray Johnson Jr., Christopher R. Leonardi

Unconventional Resources Technology Conference (URTEC)

... Zhong, Ray Johnson Jr., Christopher R. Leonardi URTEC-208346-MS Numerical Evaluation of Bulk Geomechanical Properties of Fractured Coal with Changing Net...

2021

Venture Gas Field, Offshore Nova Scotia: Case Study of Overpressuring in Region of Low Sedimentation Rate

Brett S. Mudford , Melvyn E. Best

AAPG Bulletin

... Figure 5). Fig. 6. (A) Composite temperature vs. depth below sea level, including linear least-squares fit, for wells B-52, B-43, H-22, and B-13. (B...

1989

Sediment Ingestion by Tigriopus Californicus and other Zooplankton: Mineral Transformation and Sedimentological Considerations

James P. M. Syvitski , Alan G. Lewis

Journal of Sedimentary Research (SEPM)

...). The linear regression equation, over the range FIG. 2. The egestion rate of Tigriopus californicus for various tremolite concentrations held in suspension...

1980

Total Organic Carbon Content Estimation of Bakken Formation, Kevin-Sunburst Dome, Montana using Post-Stack Inversion, Passey (DLogR) Method and Multi-Attribute Analysis

Silas Adeoluwa Samuel, Rui Zhang

Unconventional Resources Technology Conference (URTEC)

... of the Envelope Peak and Instantaneous Frequency. Probabilistic Neural Network improved the training correlation of the Multi-Linear Regression model from...

2021

Seismic Models of a Shelf-margin Depositional Sequence: Upper San Andres Formation, Last Chance Canyon, New Mexico

Jan Stafleu , Mark D. Sonnenfeld

Journal of Sedimentary Research (SEPM)

... velocity gradients. The vertical-incidence modeling technique was used to compute perfectly migrated time and depth sections with different frequencies...

1994

Semi-inverse relationship between critical angle and reflectivity coefficient, and its implication in seismic survey design, processing, and interpretation

Chen Bao

International Meeting for Applied Geoscience and Energy (IMAGE)

..., Processing, And Interpretation equation could be re-written into a function of velocity contrast: 1+𝛽 𝑉𝑝+ 𝜌+ 𝛼 + (𝑉𝑝+ ) 1 𝐴𝐼 + 1 1...

2024

Staggered source acquisition to improve images fidelity

Chunming Wang, Hongwei Guo, Gengxin Peng, Ying Hu, Junru Jiao, Bin Yang, Kun Xu, Grace Yan, Xianhuai Zhu

International Meeting for Applied Geoscience and Energy (IMAGE)

.... al, 2006). The typical algorithms for illumination analysis include ray-tracing and wave ray tracing equation methods. The former is computing cost...

2022

Imaging Subsurface Structures Under Gas Clounds by Multi-Component Technology

Xiaogui Miao, Loh Fong Cheen, Libo Zi, Jing Du, Magali Beele, Jacques Bonnafe, Natalia Anggriani, Gilles Vallon, Claudio Strobbia

Indonesian Petroleum Association

... elevations of shots and receivers of OBC data, iterative converted-wave velocity (vc) and effective vp/vs ratio (e) analyses and prestack converted wave...

2014

Size Frequency Distributions of Sediments

W. C. Krumbein

Journal of Sedimentary Research (SEPM)

... to characterize parts of the curve, if some suitable name were applied to it, just as velocity, which is the rate of change of distance with respect...

1934

Abstract: Simplified Processing of Converted Wave Data; #90224 (2015)

John C. Bancroft and Thais Guirigay

Search and Discovery.com

... for all depths. The traveltime to a vertical array of conversion points, defined in depth, can be computed with conventional methods such as ray tracing...

2015

Velocity Anomalies and Out-of-Plane Reflections in Barnicarndy 1, Canning Basin

Y. Zhan

Australian Petroleum Production & Exploration Association (APPEA) Journal

... mostly match what has been penetrated in Barnicarndy 1. Two thirds of the depth error for basement prognosis comes from the unexpected high velocity...

2021

Fundamental 3-D Seismic Survey Design

Stuart Wright

Rocky Mountain Association of Geologists

... requirement calculations, the velocity gradient can be included as a means of accommodating ray bending and thereby trimming the survey size to save money...

1995

Deep Pore Fluid Pressure Prediction in Challenging Areas, Malay Basin, SE Asia

Stephen O’Connor, Richard Swarbrick, Jamaal Hoesni, Richard Lahann

Indonesian Petroleum Association

... a distinctive curvature of the profile with depth where velocity increases more rapidly relative to density (Gardner or Bowers relationships for shales...

2011

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