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The AAPG/Datapages Combined Publications Database

Showing 4,169 Results. Searched 200,685 documents.

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Beneficiation Techniques for Western Phosphate Rock

Jay B. Clitheroe, Sam Mele

Utah Geological Association

... phosphoric acid process or subsequent high analysis fertilizer processes. Some objectionable impurities and their effects are listed as follows: Non-apatite...

1967

Aeromagnetics of Southern Alberta within Areas of Hydrocarbon Accumulation

G.E. Leblanc,, W.A Morris

CSPG Bulletin

... draping aeromagnetic data reduce terrain-induced effects. Geophysics, v. 49, no. 1, p. 75-80. Gupta, V.K. and Fitzpatrick, M.M. 1971. Evaluation of terrain...

1999

Improved Present-Day Surface Heat Flow Prediction: Examples from Africa

Jeffrey A. Nunn, Robert Pawlowski, Elizabeth Johnson

International Meeting for Applied Geoscience and Energy (IMAGE)

... errors, climate effects, topography and sedimentation. Radiogenic heat production in basaltic crust is minor. For oceanic-type crust, we build upon...

2021

ABSTRACT: Trace Element Distribution in an Organic-Rich Wetland at the Savannah River Site, South Carolina

T. M. Williams, A. D. Cohen

The Society for Organic Petrology (TSOP)

... wetlands sequester hazardous materials such as trace metals, and 7) which trace elements help to determine human influence as opposed to natural effects...

2001

Extended Abstract: Mitigation of Marine Invasive Species in Seismic Ships' Ballast Water

Phil Fontana

Petroleum Exploration Society of Australia (PESA)

..., and th e Pacific Islands- have one ecosystem to anot her ca n be quite high. harm aquatic ecosystems. They represent felt the effects of successful...

2010

A Method to Determine Specific Gravity of Suspended Particles Using an Electronic Particle Counter: METHOD PAPER

Jeffrey W. Gartner, Kendall L. Carder

Journal of Sedimentary Research (SEPM)

...-weighed and oven-dried (95° C) NucleporeR membrane filter pads (47 mm diameter, 0.4 µm pore size). After rinsing the pads with 20 ml of filtered de...

1979

Implication of Clay-Provenance Studies in Two Georgia Estuaries: DISCUSSION

Raymond A. Scheinfeld, John K. Adams

Journal of Sedimentary Research (SEPM)

... studying the probable effects of filter feeding organisms on bottom sediments in bays and estuaries through a series of controlled experiments using...

1980

A Quantitative Dissolution Method for the Analysis of Ca-, Mg- and Fe-Carbonates in Clay-Rich Rocks and Sediments: RESEARCH METHOD PAPER

Michael E. Strickler, Ray E. Ferrell, Jr., Ronald D. Snelling

Journal of Sedimentary Research (SEPM)

... membrane filter. Red iron oxides may form when ferroan carbonates are present. After decanting approximately 80% of the clear suspension, iron oxides...

1989

Abstracts: Advances in SGL AIRGrav Acquisition and Processing; #90173 (2015)

Luise Sander and Stephen Ferguson

Search and Discovery.com

... corrected GPS data from the vertical accelerations measured by the gravimeter, and the application of standard corrections to remove the effects...

2015

Challenges in Understanding Channel Levee Development

William D. McCaffrey, Gareth Keevil, Ian Kane, and Bret Dixon

Search and Discovery.com

... magnitude, magnitude with allocyclic overprint Flow tuning Or “first bend as a filter”: Straub et al. 2007 Leeds experimental work also suggests...

Unknown

Seismic Imaging through Outcropping Carbonates: An Example from the Canadian Rocky Mountains, , #41533 (2015).

Yong Hua, Don C. Lawton

Search and Discovery.com

... the application of non-surface consistent statics (trim filter). This stacked section will be used to produce the initial geological interpretation for PSDM...

2015

Chapter Six: Tuning Phenomena in Reservoirs

Alistair R. Brown

AAPG Special Volumes

... frequency content. These tuning phenomena are of considerable importance to the stratigraphic interpreter. They must be recognized as effects of bed...

2011

Wave-equation based amplitude versus offset inversion in long time windows, with time-variant wavelets

Dries Gisolf, Peter R. Haffinger

International Meeting for Applied Geoscience and Energy (IMAGE)

... will be demonstrated on a synthetic data-set where also deliberately absorption effects are modelled in the data. It is demonstrated that waveequation based AVO...

2022

Abstract: On the Interpretation of Resonance Frequencies Recorded During Microseismic Experiments; #90187 (2014)

Jean Baptiste Tary, Mirko van der Baan, and David Eaton

Search and Discovery.com

... step is then to identify and separate the possible sources (receiver, path and source effects) to facilitate the interpretation of the specific...

2014

4D Seismic Monitoring of In-Situ Combustion of Heavy Oil Reservoirs; #41529 (2015)

Diego Morales, Trino Salinas, Gabriel Alvarez

Search and Discovery.com

.... Filter operator for wavelet matching Wavelet calibration Cross-correlation between surveys Time shift (statics) correlation Comparison...

2015

Abstract: Q Estimation by a Match-filter Method; #90174 (2014)

Peng Cheng and Gary F. Margrave

Search and Discovery.com

...Abstract: Q Estimation by a Match-filter Method; #90174 (2014) Peng Cheng and Gary F. Margrave AAPG Datapages/Search and Discovery Article #90174...

2014

Maintaining and Repairing Casing Integrity - Workshop Summary

Alan Snider, Don Vogtsberger, Ed Barret, Stefanie Merkel, Rodney Reynolds, Wes Randall, John Francis, Sam Toscano

PTTC

... of diameters. It deploys an array of hard-surfaced fingers which accurately monitor the inner pipe walls. Eccentricity effects are minimized by equal...

2006

Vibroseis and Dynamite Comparison as Seismic Energy Source in North Sumatra

M. E. Gregg, B. E. Mackenzie, A. Patria

Indonesian Petroleum Association

... (Figure 3) was lower in amplitude, and dominant frequencies were higher due to the bandpass filter effect of Vibroseis. Thus, the ability to limit sweep...

1991

Specialized processing of a massive distributed acoustic sensing (DAS) 3D VSP in a producing well

Ali Sayed, Francesca Twynam, Ran Bachrach, Philippe Caprioli, Marcus Holloway, Qingsong Li, Reetam Biswas, Daniel Tebo, Sam Buist

International Meeting for Applied Geoscience and Energy (IMAGE)

... to the surface seismic image. Post-stack least-squares migration in the image domain was used to compensate for illumination effects and further improve...

2023

Pore Structure Analysis by Using Atomic Force Microscopy

Kouqi Liu, Mehdi Ostadhassan, Bailey Bubach

Unconventional Resources Technology Conference (URTEC)

... and their distributions in nanoscale. Finally, we used Gaussian filter method to get the roughness image of the surface sample and calculated the average...

2016

Effect of Mineral Transformation on Porosity and Permeability of Dolomite Rock During in Situ Recovery of Bitumen: A Preliminary Study

Witold Kubacki, Jan Boon, Gordon Bird, Brian Wiwchar

CSPG Bulletin

... program on the effects of hot water and steam stimulation on carbonate rock. Dolomites were reacted at 200 and 265°C for 13 and 26 days in 0.1 M NaCl...

1984

EXTENDED ABSTRACT: From 2 Dimensional to 3 Dimensional: Modeling the Western Gulf of Mexico Using Recently Acquired Long Offset Seismic and Gravity Data

Parsons, M., Price, A., Bain, J., Mulcahy, S., and Pawlowski, R.

GCAGS Transactions

... the seismic interpreter was defining salt body extents through various steps of the seismic processing. Filter enhancement maps (e.g., vertical...

2004

Microorganism Induced Weathering of Biotite and Hornblende Grains in Estuarine Sands

Larry Frankel

Journal of Sedimentary Research (SEPM)

... was poured into a filter paper-lined funnel. This processing was repeated a number of times. The residue collected on the filter paper contained, among other...

1977

Horizontal Cased Hole Evaluation Using a New Pulsed Neutron Spectroscopy Tool and Dipole Sonic

Richard Reischman, Edgar Velez, Aaron Green, Brian Reynolds, Damian Yasin, Blaine Spies

Unconventional Resources Technology Conference (URTEC)

... of the casing ringing. Table 1 summarizes some of the effects of cement condition and formation velocities that affect the sonic data quality. 5 2689778...

2017

Comparison of Wireline Log and SEM Image-Based Measurements of Porosity in Overburden Shales

Christopher J. Landry, Bruce S. Hart, Maša Prodanović

Unconventional Resources Technology Conference (URTEC)

... in mineralogy which is exacerbated at high-resolution (pixel < 10 nm) by interaction volume, charging and shadowing effects of the electron beam. Typical...

2020

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