Click to minimize content

Welcome to the new Datapages Archives

Datapages has redesigned the Archives with new features. You can search from the home page or browse content from over 40 publishers and societies. Non-subscribers may now view abstracts on all items before purchasing full text. Please continue to send us your feedback at emailaddress.

AAPG Members: Your membership includes full access to the online archive of the AAPG Bulletin. Please login at Members Only. Access to full text from other collections requires a subscription or pay-per-view document purchase.

Click to maximize content

Welcome to the new Datapages Archives

Search Results   > New Search > Revise Search

The AAPG/Datapages Combined Publications Database

Showing 678 Results. Searched 195,452 documents.

< Previous   5   6   7   8   9   Next >

Ascending

Using the Circumferential Borehole Imaging Log to Identify and Orient Vertical Fractures in the Austin Chalk

Bruce R. Noblett, L. Pat Howard

South Texas Geological Society Special Publications

... a fracture slices a wellbore the exit point represents the down dip direction of that fracture and is shown as the trough of the sinusoidal curve...

1991

Seismic Velocity Anisotropy in Chimore Area, Bolivia

Michael Fry, Eloy Martinez, James Baker, Mark Wallace

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... reflector degradation is seen as a set of time shifts associated with changing velocity with azimuth. This sinusoidal azimuthal variation in NMO velocity...

2008

Geomechanical and Geophysical Analysis of a Wattenberg Field through Wavefield Re-Datuming and Inversion

Jyoti Behura, Pete Smith, Oscar Quezada

Unconventional Resources Technology Conference (URTEC)

...◦ are displayed. In the presence of azimuthal anisotropy, a sinusoidal moveout is expected with azimuth for every value of offset (traces within any two...

2016

Eye-Openers from Re-Processing of Oil Sands Seismic Data; #41290 (2014)

David Gray, Seann Day, and Scott Shapper

Search and Discovery.com

... the seismic gathers at these wide angles. Wide-angle noise such as multiples, converted-waves, refractions, and first-break reverberations must also...

2014

Processing the KTK 3D seismic Survey for Azimuthal Information: San Joaquin Basin, California; #41649 (2015)

M. Lee Bell and Gary Myers

Search and Discovery.com

... horizontal velocity anisotropy (HTI) in both P– and S-waves (see slide 9). The velocity parallel to fractures, for example, is fast (see slide 10...

2015

Backset Bedding in Turbidites: A Further Example from the Cloridorme Formation (Middle Ordovician), Gaspe, Quebec

Keith Skipper , S. B. Bhattacharjee

Journal of Sedimentary Research (SEPM)

... migration of antidunes. A suitable analysis for the formation of antidunes by density currents uses an equation appropriate for internal waves...

1978

Effects of Variations in Subsidence and Sediment Supply on Parasequence Stacking Patterns: Chapter 14: Recent Developments in Siliciclastic Sequence Stratigraphy

F. L. Wehr

AAPG Special Volumes

... how depositional sequences and systems tracts can be related to eustasy. By assuming a constant rate of subsidence and a sinusoidal eustatic function...

1993

Dielectric Anisotropy and Grain Orientation

A. M. Winkelmolen

AAPG Bulletin

... or secondary. Integral bulk techniques, like the measurement of dielectric anisotropy (DA) on cylindrical plugs, inevitably produce a sinusoidal signal...

1972

Recent Carbonate Sedimentation by Tidal Channels in the Lower Florida Keys

Vladimir Jindrich

Journal of Sedimentary Research (SEPM)

... are commonly straight or slightly sinusoidal and Pleistocene bedrock is exposed at the troughs. Observations show that the sand waves are almost...

1969

Rhythmic Sedimentation in a Mixed Tide and Wave Deposit, Hazel Patch Sandstone (Pennsylvanian), Eastern Kentucky Coal Field

Stephen F. Greb , Allen W. Archer

Journal of Sedimentary Research (SEPM)

... rhythmites show a sinusoidal vertical stacking trend of thickening and thinning laminae, amalgamated rhythmites show partially or possibly cyclic trends...

1995

Semi-Analytical Approach of Optimum Vibration Frequency Determination That Gives Maximum Improvement on Reservoir Rock Porosity

Mursalim Mardin, Tutuka Ariadji

Indonesian Petroleum Association

... frequency on the reservoir rock properties. A study of low-frequency waves is of special interest because of the potential for reservoir stimulation...

2005

Sedimentary Successions in Pleistocene Ice-Marginal Lakes

John Shaw

Special Publications of SEPM

... of these sand deposits suggests their origin in proximal lacustrine en being present vironments Several sections have been recorded in the sand bodies...

1975

Triassic Sea-Level Changes: Evidence From the Canadian Arctic Archipelago

Ashton F. Embry

Special Publications of SEPM

...-level fall, can be readily eliminated because the T-R cycles are capped by subaerial unconformities on the basin margins. The second curve is sinusoidal...

1988

P-S Converted Wave AVO Analysis for Reservoir Characterization

Ehsan Sadeghi, Cepi Adam, Effendy Siawira, Hilfan Khairy

Indonesian Petroleum Association

...-component seismic data has lead to significant improvements in the quality of registered shear waves and the resulting subsurface images from the P...

2017

Characteristics of the Upper and Lower Slope, Pliocene Turbidite Reservoirs in Deepwater Kutei Basin: Case Study of Jangkrik, Jangkrik Ne, and Merakes Core Samples

Ivan Yulianto, Maulana Jati Perdana, Ludi Sativa, Luca Baruffini, Davide Carè

Indonesian Petroleum Association

..., sometimes draped with coal-enriched sinusoidal laminae. This facies is the product of background sedimentation and occasional diluted turbidity...

2023

Antidunes as Trochoidal Waves

Bryce M. Hand

Journal of Sedimentary Research (SEPM)

... that if the surface waves are sinusoidal, the antidunes beneath them should also be sinusoidal but of smaller amplitude. Furthermore, the bedform profile should...

1969

A Temperature Probe Survey on the Louisiana Shelf: Effects of Bottom-Water Temperature Variations: Geologic Note (1)

L. M. CATHLES AND A. G. NUNNS

AAPG Bulletin

... sinusoidal, whereas at 70 m depth, the changes in temperature with time are more a rupt (due to large contributions from variations with 6- and 4-month...

1991

Broadband Seismic Technology and Beyond: Part III: The Interaction between Ocean Waves and Recorded Seismic Data

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... and the seismic streamer beneath the ocean surface. How quiet is life below the waves? Sinusoidal Ocean Waves If we assume that the ocean surface is represented...

2013

Tectonic Evolution in Utah's Miogeosyncline-Shelf Boundary Zone

Gary W. Crosby

Rocky Mountain Association of Geologists

... takes a sinusoidal form. There is no precise solution of the integral, equation (l), for a sine curve, but its segment length can be approximated...

1976

Conceptual Design for Mitigating Harmonic Distortion on ESP Installation: Case Study in Kaji Semoga Field, Medco E&P Indonesia

Sandy Suryakusuma, Suprapto Atmowiranto, Dadang Darmawan

Indonesian Petroleum Association

... harmonics are defined as sinusoidal voltage and currents at frequencies that are integer multiples of the main fundamental frequency, which is 60 Hz...

2017

Fluid Dynamics of Viscous Buckling Applicable to Folding of Layered Rocks

Hans Ramberg

AAPG Bulletin

.... The multilayers which buckle to a single wave if unrestricted (by adjacent bodies) will buckle to many waves with a characteristic wavelength if surrounded...

1963

Abstract: Shear Wave Splitting Parameter Estimation Using a Regular Distribution of Azimuths; #90187 (2014)

A. Stanton and M. D. Sacchi

Search and Discovery.com

... parameters. Introduction In the presence of Horizontal Transverse Isotropy (HTI) converted waves are split into fast and slow waves which...

2014

< Previous   5   6   7   8   9   Next >