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The AAPG/Datapages Combined Publications Database
Showing 26,326 Results. Searched 200,357 documents.
Siting recharge basins and improving groundwater models using multiple survey methods in Southern California
Nicole Pendrigh, Michael Blazevic, John Jansen, Kristen Marberry
International Meeting for Applied Geoscience and Energy (IMAGE)
... or voltage between an offset electrode pair (potential electrodes) in contact with the ground. The subsurface resistivity or apparent resistivity...
2022
Synthetic Electric Logs in Subsurface Mapping
William H. Curry III
Wyoming Geological Association
.... First, the thickness of permeable sandstone, as indicated by the SP curve, and second by the thickness of rock with resistivity (R16 inch) below a given...
1969
A Hidden Reservoir within the Gacheta Formation, Zopilote Field, Llanos Orientales Basin, Colombia, #20231 (2014)
Cesar Vasquez
Search and Discovery.com
... to be determined in the interpretation procedure is water resistivity (Rw). Several water resistivities are anticipated (helped by an apparent water...
2014
Magnetotelluric Transect of the Sevier Overthrust Belt in Southwestern Utah and Eastern Nevada
Jeffrey M. Johnston, Philip E. Wannamaker
Utah Geological Association
... as they appear in (1), we instead construct simple functions from each. One useful function is apparent resistivity, generically denoted ρa defined...
1991
Slim, High Resolution Laterolog Array Tool: First Field Experiences
Jean-Marc Donadille, Igor Ilyin, Martin G. Lüling, Tony Meszaros, Richard Reischman, Alexey Repnev, Vladimir Yukhlin, Nasar Khan, Mark Jones
Unconventional Resources Technology Conference (URTEC)
... provides Rt even for large corrections from the deepest reading apparent resistivity Ra. Furthermore, the inversion provides the invasion resistivity Rxo...
2017
3D inversion and visualization of DC data acquired at dense borehole locations
Diego Domenzain, Lichao Liu, Anders Kristian Kuhl, Anders Vest Christiansen, Ivn Ylamos Vela
International Meeting for Applied Geoscience and Energy (IMAGE)
.../10.5194/gi-8-1-2019. Loke, M. H., and R. Barker, 1996, Rapid least-squares inversion of apparent resistivity pseudosections by a quasi-Newton method 1: Geophysical...
2022
Study of Carbonate Reservoirs of the Astrakhan Field by Geophysical Logging
R. Sh. Aliyev
Petroleum Geology: A Digest of Russian Literature
... electrical logging probes (laterolog). This method is used to analyze variations in resistivity radially. Comparison of apparent resistivities discloses...
1979
ABSTRACT: Small Scale Heterogeneity: Significance and Modelling Challenges for EOR Field Development, by Nofli, Sami; #90141 (2012)
Search and Discovery.com
2012
Unconventional Resource Potential of the Sunbury Shale, Berea Sandstone, and Antrim Shale in Central Michigan
Search and Discovery.com
N/A
A Study on the Origins of Permeability within the Point Pleasant Formation, Eastern Ohio
Search and Discovery.com
N/A
MFF net: A multiscale feature fusion network for electromagnetic and seismic joint inversion
Yonghao Wang, Zhuo Jia, Yinshuo Li, Wenkai Lu
International Meeting for Applied Geoscience and Energy (IMAGE)
... the two encoders. The variables and represent the apparent resistivity and phase data, respectively. and denote the initial velocity model...
2023
Basic Open Hole Tools: Part 4. Wireline Methods
Mark W. Alberty
AAPG Special Volumes
... of different depths of investigation to characterize the influence of the invading mud filtrate upon apparent formation resistivity...
1992
Abstract: Logfacies Distribution of the Wilcox Coal-Bearing Interval in North-Central Louisiana: A Quick-Look Technique for Coalbed Methane Resource Evaluation
Joshua Kull, Gary L. Kinsland
GCAGS Transactions
...-obtainable, digitized SP and resistivity logs. This adapted technique relies on the premise that limestone does not typically occur in fluvial-deltaic...
2006
Stopping a Well to Develop a Field - A Geostopping Case Study from the Andaman Sea, #20404 (2017).
Mike Orr, Paolo Sudiro, Valentin Woehling, Amrith Kaur, Kesavan Ramasamy, Farith Farhan M. Pajri, Kamaruddin Salleh, Own Thwin, Siti Aida Yaha
Search and Discovery.com
... is in, or is entering (Lindsay, 2008). The resistivity value given by the tool is an apparent one, largely dependent on mud resistivity, and pre-well...
Unknown
Update on Exploration for Diamonds in Colorado-Wyoming Kimberlite Province: ABSTRACT
W. D. Hausel, M. E. McCallum, T. L. Woodzick
AAPG Bulletin
... Range by available remote-sensing imagery. Target areas given highest priority are those showing apparent relations and similarities to known kimberlite...
1979
Geologically Consistent Resolution Enhancement of Petrophysical Analysis Using Image Log Data
Search and Discovery.com
N/A
Abstract: Electrical Tomography and Geological Radar Investigation: Detection and 2D Modelling of Underground Cavities in the Beni Mella
A. Najine, M. Filahi, D. El Azzab, K. Elkhammari, M. Himi
Search and Discovery.com
... resistivity models of the subsurface that would simulate apparent resistivities that correlate with the measured data. One of the most important results...
2008
Abstract: The Layered Evaporite Sequence (LES) in the Saudi Arabian Red Sea; #90254 (2016)
Ahmed Alhani
Search and Discovery.com
... anisotropy in its apparent resistivity. The purpose of this presentation is to describe the LES and highlight its exploration significance. The LES has...
2016
Applications of Magnetotellurics to Petroleum Exploration in Papua New Guinea
Karen R. Christopherson
Papua New Guinea (PNG) Petroleum Convention Proceedings
... frequencies per decade) on a logarithmic scale (Vozoff, 1972; Telford et al, 1976). The calculated resistivity is called “apparent resis tivity...
1990
A Recent Log Evaluation Technique—Synergetic Systems: Abstract
K. G. Kemp
Tulsa Geological Society
... of a computer device, we will change the readings of the porosity tool into an equivalent resistivity reading. This computer curve will show what...
1968
A Method of Estimating Formation Pressures from Gulf Coast Well Logs: ABSTRACT
H. H. Ham
AAPG Bulletin
...A Method of Estimating Formation Pressures from Gulf Coast Well Logs: ABSTRACT H. H. Ham 1966 2322 2322 50 10. (October) Conventional resistivity...
1966
ABSTRACT: Scalar CSAMT Applied to Woxi Au-Sb-W Deposit, Hunan, China; #90051 (2006)
Iraj Vosoughi-Niri
Search and Discovery.com
... apparent resistivity contour maps at ten frequencies: 8, 16, 32, 64, 128, 256, 512, 1024, 2048, and 4096. The CSAMT data provided important...
Unknown
Monitoring of Unconventional Resources Using Magnetotellurics
Nigel Rees, Graham Heinson, Simon Carter, Lars Krieger
Petroleum Exploration Society of Australia (PESA)
... ¨ ¨Z © yx Z xy ·§ Bx · ¸¨ ¸ . Z yy ¸¨ B y ¸ ¹© ¹ (1) The components of Z are characterised by a scaled amplitude termed apparent resistivity (ra...
2016
Illuminating Reservoirs With Electromagnetics
Leonard J. Srnka
Indonesian Petroleum Association
... a background resistivity of approximately 1 Ohm-m at the M-2 location. Imaging tests using 3-D model data verified that this apparent low resistivity...
2008
Application of audio-magnetotelluric method to cover thickness estimation for drill site targeting
Wenping Jiang, Ross Brodie, Jingming Duan
Petroleum Exploration Society of Australia (PESA)
... of the apparent resistivity !𝜌 = $ 𝜌%& 𝜌&% ' and the arithmetic mean of the apparent phase !𝜃 = [𝜃%& + 𝜃&% ]⁄2'. Stochastic Inversion We have...
2019