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The AAPG/Datapages Combined Publications Database

Showing 22,208 Results. Searched 190,142 documents.

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Chapter Nine: Inversion and Interpretation of Impedance Data

Rebecca B. Latimer

AAPG Special Volumes

... the low frequencies are not present in seismic data. In Figure 9-2, starting from the right, one could convolve the data with a wavelet to create...

2011

Analysis of Electromagnetic Depth Sounding Responses Over a Layered Earth: Investigating Oil & Gas Seeps in the Petroleum Provinces

Shastri L. Nimmagadda, Andrew Ochan

Petroleum Exploration Society of Australia (PESA)

... through digital linear filter. Dimensionless normalized vertical magnetic field is computed for different frequencies and loop radii for layered earth...

2016

Limitations on Resolution of Seismic Reflections and Geologic Detail Derivable from Them: Section 1. Fundamentals of Stratigraphic Interpretation of Seismic Data

Robert E. Sheriff

AAPG Special Volumes

... with wavelength. Most seismic energy is contained in a band of frequencies centered near the dominant frequency (the reciprocal of the dominant period...

1977

Gulf of Mexico: Miocene Marine Fan, Offshore Gulf of Mexico

R. S. Olsen and W. C. Riese

AAPG Special Volumes

...Gulf of Mexico: Miocene Marine Fan, Offshore Gulf of Mexico R. S. Olsen and W. C. Riese 1987 39 43 AAPG Studies in Geology #27, volume 3: Atlas...

1987

Ecology of Foraminifera and Associated Microorganisms from Mississippi Sound and Environs

Fred B Phleger

AAPG Bulletin

... is on the distribution of Foraminifera, and some associated larger micro-organisms having hard parts, from Mississippi Sound and nearby marine End_Page 584...

1954

Abstract: Petroleum Migration in the Malay Basin … Our Current Understanding (Paper 1)

S. Creaney, P. S. Koch, K. W. Rudolph

Geological Society of Malaysia (GSM)

... systems all driven by non-marine source rocks ranging from algal-dominated (lacustrine) sources of Oligocene age to delta plain/coastal plain sources...

1993

Marine Sonoprobe System, New Tool for Geologic Mapping

C. D. McClure , H. F. Nelson , W. B. Huckabay

AAPG Bulletin

... system, a low-frequency seismic system which generates a pulse of sound energy with a dominant frequency of 3,800 cycles per second, is described. Marine...

1958

Petrography and Genesis of Recent Sediments in Narragansett Bay and Rhode Island Sound, Rhode Island

Robert L. McMaster

Journal of Sedimentary Research (SEPM)

... (?) greenstones and metamorphosed sedimentary rocks are believed to be the sources of the amphibole assemblage; Pennsylvanian sedimentary rocks...

1962

Frequency-dependent seismic-stratigraphic and facies interpretation

Hongliu Zeng

AAPG Bulletin

... to algorithms and noise, two primary sources of uncertainty are nonuniqueness of seismic surface picking and of seismic facies definition. This study...

2013

Study of the Seismic Attenuation Generated by the Mud Layer in Lake Maracaibo, Venezuela

J. Perez, E. Andara, B. Malave

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... by absorption for low frequencies and short distances from the sources. As the frequency and the distance increase, absorption losses increase and eventually...

2006

Exploring the Norwegian Atlantic Margins: Møre and Vøring Basins

Bent Kjølhamar, Jan Langhammer, Nick Woodburn, Reidun Myklebust, Simon Baldock, TGS

GEO ExPro Magazine

... marine source rock in the Helland Hansen well (6505/10-1). There are clear seismic imaging challenges with regard to volcanic sills and the side effects...

2018

Seismic simulations of experimental strata

Lincoln Pratson, Wences Gouveia

AAPG Bulletin

... for using digital photos of the experimental strata to generate synthetic seismic data at the length scales and frequencies relevant to oil and gas...

2002

Origin and Significance of Thick Carbonate Grainstone Packages in Non-Marine Successions: A Case Study from the Barra Velha Formation, Santos Basin; #11116 (2018)

Andrew J. Barnett, Michael Obermaier, Joachim Amthor, Kaluan Juk, Raphael Camara, Mohammad Sharafodin, Matt Bolton

Search and Discovery.com

...Origin and Significance of Thick Carbonate Grainstone Packages in Non-Marine Successions: A Case Study from the Barra Velha Formation, Santos Basin...

2018

Seismic Stratigraphy — Lodgepole Play Examples

John A. Andrew

Montana Geological Society

... high frequencies by: (1) using a seismic source rich in high frequencies, (2) recording with modern high fidelity instruments and (3) data...

1996

ABSTRACT: Biogeochemical Investigations of Microbial Biomarkers in an Active Estuarine Pockmark Field, Penobscot Bay, Maine; #90018 (2003)

Allen M. Gontz

Search and Discovery.com

... is dominant in marine environments (paleopalustrine/detrital organics). An understanding of methanogenesis in Penobscot Bay will clarify the evolution...

2003

Application of Pseudorandom m-Sequences for Seismic Acquisition

Joe Wong

Search and Discovery.com

... configuration with hydrophones in a well about 80 meters from the source well. The dominant frequencies in these seismograms are about 3.3 kHz. The sample time...

Unknown

Application of Pseudorandom m-Sequences for Seismic Acquisition

Joe Wong

Search and Discovery.com

... configuration with hydrophones in a well about 80 meters from the source well. The dominant frequencies in these seismograms are about 3.3 kHz. The sample time...

Unknown

Grain-Size Statistics I: Evaluation of the Folk and Ward Graphic Measures

Davis Swan, John J. Clague, John L. Luternauer

Journal of Sedimentary Research (SEPM)

... moments: Jour. Sed. Petrology, v. 35, p. 969-972. SAHU, B. K., 1965b, Transformation of weight- and number-frequencies for phi-normal size distributions...

1978

Abstract: The Modernized U of C Seismic Physical Modelling Facility; #90171 (2013)

Joe Wong, Kevin W. Hall, Eric V. Gallant, Rolf Maier, Malcolm B. Bertram, and Don C. Lawton

Search and Discovery.com

...). These are wired to RG174/U coaxial cables terminated by standard BNC connectors. In water, the piezopins have natural dominant frequencies of about 1.0 MHz...

2013

Skew Normal Distribution Deconvolution of Grain-size Distribution and Its Application To 530 Samples from Lake Bosumtwi, Ghana

Stoney Q. Gan, Christopher A. Scholz

Journal of Sedimentary Research (SEPM)

... subpopulations. The results reveal seven disjointed subpopulation groups in the mean grain-size distribution (MGSD) field, and each of their volume frequencies...

2017

Correlation Between Allogenic Grade Size and Allogenic Frequency in Sediments

Percival Allen

Journal of Sedimentary Research (SEPM)

... of a variety of drainage-systems will generally originate from a number of different sources, and present no systematic limitations of size at the site...

1947

Abstracts: Improved Near-surface Velocity Models from 2D Waveform Tomography of Vibroseis First-arrival Data; #90173 (2015)

Brendan R. Smithyman and Ronald M. Clowes

Search and Discovery.com

... geometry. To date, most published results from WT of on-land data have dealt with straight-line 2-D datasets acquired using explosive sources. Several...

2015

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