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The AAPG/Datapages Combined Publications Database

Showing 577 Results. Searched 200,673 documents.

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Discovery of Stone Age Tools from Tripura and Its Relevance to the Prehistory of Southeast Asia

N. R. Ramesh

Geological Society of Malaysia (GSM)

... of the older and younger terrace deposits). In its totality, the artifact assemblage bears a close semblance with the Anyathian and Neolithic tools reported...

1986

Falling Water Level Ripple Marks

William F. Tanner

GCAGS Transactions

... confusion may be more difficult to reduce to order. Regardless of the success which one has in achieving a semblance of understanding from shallow-water...

1962

Deformation of Sandstones Over Basement Uplifts, Colorado National Monument

D.W. Stearns, W.R. Jamison

Rocky Mountain Association of Geologists

... semblance of ordering is sometimes lost, and the fracture spacing in any direction is on the order of inches or tenths of inches. Proceeding away from...

1977

Estimation of Dispersion in Orientations of Natural Fractures from Seismic Data: Application to Discrete Fracture Network Modeling

Reinaldo J Michelena, Kevin S. Godbey, Huabing Wang, James R. Gilman, Chris K. Zahm

Unconventional Resources Technology Conference (URTEC)

... data such as curvature, semblance or dip, have been used in the estimation of preferential orientation in the subsurface, in particular orientation...

2013

Wilburton Gas Field, Arkoma Basin, Oklahoma

R. M. Berry, W. D. Trumbly

Oklahoma City Geological Society

.... The Spiro is medium and regularly-bedded except for a semblance of a channel near the base, with shale or tripolitic chert pebbles in a few localities...

1968

Permian Miogeoclinal Strata at El Volcan, Baja California, Mexico

Marc Delattre

Pacific Section SEPM

... on erosional slopes. Most exposures appear to lack any semblance of bedding or internal structure. The notable exception to this is on washed surfaces in Arroyo...

1984

Seismic Acquisition and Processing for Sub-thrust Imaging and Prospecting, Suaza Valley, Colombia

G.W.Paukert, G. Billings, I.Dawes, T.D.J. England, G.Rait

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

..., including tomographic refraction statics, multiple passes of pre-stack noise attenuation (fx and semblance-weighted dip filter), and Kirchoff pre-stack...

2003

Exploration of the Arafura Basin, Indonesia

Joko S. Miharwatiman, Derik W. Kleibacker, Jesse A. Baker, Ludy Andria, Jon Elliot

Indonesian Petroleum Association

... from the hard Paleozoic section below the unconformity was not easy to quantitatively predict from velocity semblance in the velocity analysis stage...

2013

Nias Basin, NW Sumatra … New Insights into Forearc Structure and Hydrocarbon Prospectivity from Long-Offset 2d Seismic Data

Ian Deighton, M. Ma’ruf Mukti, Satish Singh, Tom Travis, Anthony Hardwick, Katie Hernon

Indonesian Petroleum Association

... upon semblance maxima and gather flattening, is problematic due to a relatively weak primary signal. For this reason velocity analysis is made...

2014

Unlocking the Origin of Hydrocarbons in the Central Part of the Rankin Trend, Northern Carnarvon Basin, Australia

D. Jablonski, J. Preston, S. Westlake, C. M. Gumley

Petroleum Exploration Society of Australia (PESA)

.... As an exploration tool semi-regional analysis of shallow seismic amplitudes and the associated seismic semblance data can indicate seal-failure...

2013

Integrating Horizontal Borehole Imagery and Cluster Analysis with Microseismic Data for Niobrara Reservoir Characterization, Wattenberg Field, Colorado, USA

Colton Dudley, Tom Davis, Tom Bratton, Janel Andersen

Unconventional Resources Technology Conference (URTEC)

... on top of coherency (White, 2015). Coherency compares adjacent seismic waveforms using cross-correlation, semblance, and eigenstructure measures along...

2016

Occurrence and Activity of Bacteria in Marine Sediments

Claude E. Zobell

Special Publications of SEPM

.... Lloyd (27) noted a semblance of bacterial stratification in mud cores from the Clyde Sea area where she found up to 300,000 bacteria per gram (dry basis...

1955

Glacial Expression of Structural Features in Michigan: Preliminary Study

Robert B. Newcombe , George D. Lindberg

AAPG Bulletin

... a large area carrying all obstruction before it like a gigantic plow, retreated, and advanced, repeating the process until all previous semblance...

1935

Application of Isotope Chronostratigraphy in the Northern Gulf of Mexico

Douglas F. Williams, Dwight Trainor

GCAGS Transactions

... of stratigraphic resolution possible. Linking these approaches to the information retrievable using the semblance, filter, deconvolution and frequency domain...

1986

Reservoir Characterization Using Seismic Attributes and Inversion Analysis of Globigerina Limestone Reservoir, Madura Strait, Indonesia

Muhammad Tajul Arifin, Angus J. Ferguson

Indonesian Petroleum Association

.... The similarity attribute is one of the coherence attribute, semblance based coherence, that principally measures the degree of similarity between...

2017

A comparison of Marchenko multiples elimination schemes based on the beyond Neumann solution

Rodrigo S. Santos, Daniel E. Revelo, Reynam C. Pestana, Victor Koehne, Marcelo S. Souza, Diego F. Barrera, Laila D. L. Vergne

International Meeting for Applied Geoscience and Energy (IMAGE)

... that removing internal multiples before starting a velocity analysis helps to better define the choice of maximum values in the semblance map, to retrieve initial...

2024

The Deer Lake Basin, Newfoundland: Structural Constraints from New Seismic Data

James A. Wright, Brian H. Hoffe, George S. Langdon, Garry M. Quinlan

CSPG Bulletin

... structure near the surface. Such information is not available from semblance analysis and is only obtained through the refraction statics processor. One...

1996

Simultaneous Joint Inversion of Seismic, Magnetotelluric and Gravity in a Sub-Volcanic Reservoir

Muhammad Irsyad Hibatullah, Maulana hutama Rahma Putra, Firman Syaifuddin Akbar, Dwa Desa Warnana, Fahrenzy Yona Aisha

Indonesian Petroleum Association

... the highest semblance energy is not enough because the poor energy of seismic signal. CONCLUSIONS Based on the Independent inversion, the SJI and conventional...

2019

Petrography of Mississippian Limestones and Cherts from the Northwestern Highland Rim, Tennessee

Melvin V. Marcher

Journal of Sedimentary Research (SEPM)

... concentric layering. No "cannonballs" which show any semblance of radiating internal structure have been found. FIG. 13. [Grey Scale] Fine-grained dolomitic...

1962

On Dating of the Paleogene

M. Rubinstein , L. Gabunia

AAPG Special Volumes

... to 68) m.y., it is virtually only a semblance of "good luck," because there is no unity of opinion regarding the stratigraphic position of this boundary...

1978

Evidence for a Talchir (Lower Gondwana) Glaciation: Striated Pavement and Boulder Bed at Irai, Central India

Alec J. Smith

Journal of Sedimentary Research (SEPM)

... above the pavement. The greatest thickness of the boulder bed exposed at this point is about 15 feet. Here there is some semblance of bedding...

1963

Detail Illustration of Structural Discontinuities: Fault Intensity Attribute to Enhance the Fault Likelihood, Hessian Derivative and Fault Extraction

Aji Darma Maulana, Argya Hastubrata Basundara, Muhammad Hafiz Baharuddin, Syukron Ady Purnawiranto, Muhammad Alfateh Saifullizan

Indonesian Petroleum Association

... Fault Plane (Fault Likelihood) Attribute Fault Plane attributes directly derived from fracture detection algorithm are coherency, variance, and semblance...

2023

Semiautomated Lateral Landing Advisor for On-Time Decisions Utilizing Digital Borehole Sonic Services and Next-Generation Cloud-Based Fracturing Design

Edgar Velez, Juan David Estrada, Adam Donald, Romain Prioul, Ting Lei, Erik Wielemaker, Violeta Lujan

Unconventional Resources Technology Conference (URTEC)

... December. Kimball, C. V. and Marzetta, T. L. 1984. Semblance Processing of Borehole Acoustic Array Data. Geophysics 49 (3): 274–281 Leaney, S., Jocker, J...

2021

Discovery of Ring Faults Associated with Salt Withdrawal Basins of Early Cretaceous Age in the East Texas Basin

Steven J. Maione

GCAGS Transactions

..., S.L. Farmer, and M.S. Bahorich, 1998, 3-D seismic attributes using a semblance-based coherency algorithm: Geophysics, v. 63, no. 4, p. 1150-1165...

2000

Stability of Calcium Carbonate Polymorphs in Warm, Shallow Seawater

H. Dale Winland

Journal of Sedimentary Research (SEPM)

.... It was hoped that by forming the precipitate slowly a semblance of equilibrium would be maintained between the phases, minimizing the compositional zoning. X...

1969

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