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The AAPG/Datapages Combined Publications Database

Showing 3,800 Results. Searched 195,364 documents.

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Seismic Resolution in the Mahakam Delta

J. B. Beauchamp

Indonesian Petroleum Association

... filter. The effect of these simple filters is shown on plate 12: When the three-point (−1, 2, −1) filter is applied to the synthetic example used...

1980

Analysis of Carbonate Rocks for Calcium, Magnesium, Iron, and Aluminum with Edta: ERRATUM

Bisque, Ramon E.

Journal of Sedimentary Research (SEPM)

... are not available" belongs in column 2, paragraph 3, same page, i.e., porcelain crucibles may be used in burning away the filter paper if platinum ware...

1961

Abstract: Shock Filter: A Powerful Tool to Map Basement Blocks and Faults in the Peace River Arch of Alberta Based on Magnetic Signatures; #90174 (2014)

Hassan H. Hassan and Janine Weber

Search and Discovery.com

...Abstract: Shock Filter: A Powerful Tool to Map Basement Blocks and Faults in the Peace River Arch of Alberta Based on Magnetic Signatures; #90174...

2014

Abstract: Enhancements in the Processing of GPR Data at Maax Na, Belize, Central America; #90211 (2015)

Julie Aitken, Robert Stewart, John Bancroft

Search and Discovery.com

... shift and setting equidistant tr aces, the application of a “dew ow” low-cut filter, gain function, Q-filter and running aver age spatial filter, follo...

2015

Kutei Basin: Feasibility Study of a Broadband Acquisition

Gilbert Del Molino, Fabri Ikhlas Gumulya, Dedy Sulistiyo Purnomo, Paolo Battini, Bonita Nurdiana Ersan, Francesca Brega, Ferdinando Rizzo, Giorgio Cavanna, Buia Michele

Indonesian Petroleum Association

... effects (grain friction, microcracks closure, fluid displacement, Mie scattering). The macroscopic attenuation of seismic waves can be described...

2013

Problems in Secondary-Recovery Water Flooding: Chapter 8

C. Arnold Brown

AAPG Special Volumes

... in secondary recovery projects is the injected water (Amstutz and Reynolds, 1964). Thus, selection of the source, or an open or Fig. 4. The effects...

1989

Seismic Trace Interpolation using Adaptive Prediction Filters

Search and Discovery.com

... to update the predictor filter: w ( n) = λ−1R (n − 1)u(n) 1 + λ−1u(n)T R (n − 1)u(n) α (n) = d (n) − u(n)T p(n − 1) p(n) = p(n − 1) + w (n)α (n) (1) R (n...

2013

Keep an Eye on Your Basement! … The 3D Version

Search and Discovery.com

... such effects could influence trap and reservoir development. This paper focuses on how to map magnetic basement quickly and effectively in 3D on a seismic...

2013

The Use of Seawater as a Source for Waterflooding Offshore Fields

D. D. Caudle

Indonesian Petroleum Association

... evaluated not only from the standpoint of being effective, but also for its cost, logistic availability, and effects on materials of the mechanical system...

1984

Benefiting from Variogram Information to Characterize Facies Distribution in History Matching with EnKF; #41315 (2014)

A. Abadpour, P. Bergey, R. Piasecki, and T. Blanchard

Search and Discovery.com

... uncertainty on a cell-by-cell basis. The Ensemble Kalman filter approach best performs in linear cases and Gaussian distribution of uncertainty in the prior...

2014

Least Square Q-Kirchhoff Migration: Implementation and Application

Xiaodong Wu, Yi Xie, Joe Zhou, Dechun Lin, Yu Wang

Petroleum Exploration Society of Australia (PESA)

... Filter INTRODUCTION Absorption effects caused by the anelastic nature of the earth leads to the attenuation of amplitude and distortion of phase...

2018

Abstract: Correcting PS Receiver Statics using Hybrid Raypath Interferometry; #90172 (2014)

David C. Henley

Search and Discovery.com

...’, for removing near-surface effects from seismic data, is used to remove converted wave receiver statics. A model study is used to show that artifacts caused...

2014

Sub-Basalt Geology, Deepwater Offshore India; #41008 (2012)

Roberto Fainstein, Rajesh Kalra, S. Chandrashekkar, and C. Visweswara Rao

Search and Discovery.com

...-basalt reservoirs Important to model thermal effects over geologic time The possibility that hydrocarbons are destroyed when basalts are too thick...

2012

Structural Analysis Using Spatial Filtering in Interior Plains of South-Central Alberta

J. E. Robinson , H. A. K. Charlesworth , M. J. Ellis

AAPG Bulletin

... a digital computer and involves (1) determining the spatial frequencies in the input map and in the desired undulations, (2) designing a spatial filter...

1969

WELL LOG PROGRAMING

JOHN H. WETZEL

Montana Geological Society

.... The resulting accumulation of filter cake opposite a permeable zone usually permits quanitative estimates of effective porosity in low...

1959

Deep Sea Stratigraphy: Erosion and Progradation in the Deep Sea--Examples from the Western South Atlantic

L. A. P. Gamboa, P. Ganey, and R. T. Buffler

AAPG Special Volumes

.... T. Buffler 1987 237 243 AAPG Studies in Geology #27, volume 3: Atlas of Seismic Stratigraphy The effects of strong circulation for the generation...

1987

A Regression Technique for the Analysis of Shales by X-ray Diffractometry

John M. Cubitt

Journal of Sedimentary Research (SEPM)

... filter and the moulding of a sample into a pellet, determined using a two-way ANOVA with replicates. Calibration charts for quartz, calcite...

1975

Abstract: Inserting Stratigraphic Deconvolution into the Possessing Flow to Improve the Resolution of AVO; #90172 (2014)

Norm Kalmanovitch

Search and Discovery.com

... filter approach of stratigraphic deconvolution, because of its simplicity, may be able to address this resolution limitation of AVO. The concept...

2014

Abstract: Nonlinear AR Modeling Using Second Order Volterra Filters; #90211 (2015)

Soner Bekleric and Mauricio Sacchi

Search and Discovery.com

... error filter ing using non-linear AR m odels. These models are implemented via Volterra series. Although linear filter t heory has an important plac e...

2015

Abstract: Pitfalls in Prestack Inversion of Merged Seismic Surveys; #90239 (2015)

Sumit Verma, Shiguang Guo, Thang Ha, and Kurt Marfurt

Search and Discovery.com

... the development of a new ground roll suppression workflow. In workflow we first window and low-pass filter (f<50 Hz) the data, 3D patch by 3D patch. We then apply...

2015

Abstract: Attenuation of Scholte Waves from OBC Data Using Polarization Filtering; #91204 (2023)

Yong Qing Chen, Mamadou Diallo, Mustafa A Marzooq, Faisal M Qahtani

Search and Discovery.com

... and a solid layer. In OBC seismic data, these waves form prominent dispersive noise arrivals that contaminate reflection arrivals. The polarization filter...

2023

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