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The AAPG/Datapages Combined Publications Database
Showing 26,326 Results. Searched 200,357 documents.
Determination of the Porosity of the Mesozoic Sediments of the Middle Ob Area
Ye. I. Leont’yev
Petroleum Geology: A Digest of Russian Literature
.... The parameter of porosity Rp is determined with the microsonde according to the specific resistivity of the rock ϱpp close to the borehole and according...
1961
Some Applications of the Combined Use of Cure Analysis and Electric Log Data
T. Kennaird
Geological Society of Malaysia (GSM)
... assessment of pay zones can be made on the basis of log data alone. For example, zones showing an apparent water saturation of greater than 50 percent...
1988
Contribution to Prospect De-risking on the Veslemøy High, SW Barents Sea - An Offshore Vertical Source, Vertical Receiver CSEM Survey; #40868 (2012)
Enric Leon and Jon-Mattis Borven
Search and Discovery.com
... at the position of the target structure, consistent with preinversion apparent resistivity results. From the exploration company‟s point of view...
2012
Inversion of magnetotellurics data with enhanced structural fidelity
Federico Golfré Andreasi, Simone Re, Federico Ceci, Luca Masnaghetti
Petroleum Exploration Society of Australia (PESA)
... in the subsurface with a high degree of fidelity is limited by the “integral effect” of the apparent resistivity and by the generic regularization term Φ...
2019
Inversion of Magnetotelluric (MT) Data with Enhanced Structural Fidelity, #42333 (2018).
Federico Golfre Andreasi, Simone Re, Federico Ceci, Luca Masnaghetti
Search and Discovery.com
... of fidelity is limited by the “integral effect” of the apparent resistivity and by the generic regularization term Φ (𝐦) that privileges the smoothness...
2018
Evaluation of Geophysical Techniques in the Determination of a Salt Contaminated Environment, #80535 (2016).
Walter Reed, Michael Foust, Heather L. Lehto, James W. Ward, Jason Payne
Search and Discovery.com
... methods including galvanic DC resistivity, capacitively coupled resistivity, and frequency domain conductivity. Galvanic resistivity surveys have been...
2016
Sensitivities, Limitations, and Error Inherent in Resistivity-tool-response Modeling - Application of Resistivity-Tool-Response Modeling for Formation Evaluation - Archie Series No. 2
Hezhu Yin
AAPG Special Volumes
... for the resistivity to Sw calculation, then the apparent water saturation (Swa) can be expressed as (6-11) and then the ratio of Swa to the true water...
2011
Karst Cavern Identification and Deep Imaging in the Delaware Basin Using Magnetotellurics
Patricia de Lugão, Eric Corrêa, Berthold Kriegshäuser, Isaac Santos, Ludwig Kriegshauser
Unconventional Resources Technology Conference (URTEC)
... yields the impedance and two apparent resistivity and phase parameters that are used for analysis and interpretation (Vozoff, 1991). Since we have two...
2024
Efficient Geophysical Program for Investigation of Drill Holes in the Kuybyshev Region
B. Ye. Fel’dman
Petroleum Geology: A Digest of Russian Literature
...h resistivity with small thickness and clearly marks the base of a stratum and the position of the water-oil or water-gas contact. Values of apparent specifi...
1964
Modelling an Ultra-Long Electrical Device, and Application in Interpretation of a Hot Dry Rock Geothermal Reservoir
John Lovell, Makoto Miyairi, Kazuhiko Tezuka, Gordon Mowat
Indonesian Petroleum Association
.... By entering the apparent resistivity measured by the tool at a point on the Ra axis and then projecting down to the Rt axis, we obtain the true formation...
1990
Transformation of Resistivity to Pseudovelocity Logs: GEOLOGIC NOTE
Albert J. Rudman , Joseph F. Whaley , Robert F. Blakely , Maurice E. Biggs
AAPG Bulletin
... the apparent resistivity (Ra), calculation of the corresponding transit time (TT^prime) proceeds from the relation EQUATION (1) where A, B, and C are empirical...
1976
Urban Geophysics: Geophysical Signature of the Mount Bonnell Fault and its Karstic Features in Austin, Texas
Mustafa Saribudak
GCAGS Transactions
... of 1 ohm-m. The synthetic apparent resistivity, calculated inverted, and synthetic model are given in Figure 5. Note the similarity between...
2012
Shallow Hazard Assessment and Interpretation Using Geoelectrical Data: Bungamas PSC Study Case, Onshore South Sumatra Area
Iswani Waryono, Nusatriyo Guritno, Putri Riadini, Agus Laesanpura
Indonesian Petroleum Association
... of an electric current (I) into the earth thru steel electrodes. Two ceramic porous pots are used as receivers with voltage unit (V). The apparent resistivity (ρa...
2013
New Technology to Acquire, Process, and Interpret Transient EM Data; #41579 (2015)
Anton Ziolkowski, Richard Carson, David Wright
Search and Discovery.com
... time of the peak of the earth impulse response with offset can be mapped to an apparent interval resistivity, creating a pseudo-resistivity section...
2015
Abstract: Quantifying Total Organic Carbon (TOC) from Well Logs Using Support Vector Regression; #90187 (2014)
Yexin Liu, Zhuoheng Chen, Kezhen Hu, and Chris Liu
Search and Discovery.com
... Conclusions We have first put forward methods to generate apparent logs (gamma ray, density, sonic and neutron) from resistivity to identify the shale gas...
2014
Use of Dipmeter Data in Clastic Sedimentological Studies (1)
C. HOCKER , K. M. EASTWOOD , J. C. HERWEIJER , and J. T. ADAMS
AAPG Bulletin
.... (February) Resistivity curves from he eight measuring electrodes of Schlumberger's Stratigraphic High-Resolution Dipmeter Tool{TM} (SHDT) can be processed...
1990
Abstract: Application of Induction Logging in Louisiana and Mississippi
C. A. Doh
GCAGS Transactions
... by a combination of the Induction, spontaneous potential, and short-normal resistivity curves. The basic advantages of Induction over conventional logging...
1955
Determination of Permeability by Resistivity Logging
L. A. Buryakovskiy
Petroleum Geology: A Digest of Russian Literature
...Determination of Permeability by Resistivity Logging L. A. Buryakovskiy 1959 50 55 Vol. 3 (1959) No. 1B. (January) 1. Dakhnov, V. N., 1955...
1959
Interpretation of the Geophysical-Logging Data on Deep Wells of the Western Cis-Caucasus
V. K. Popov
Petroleum Geology: A Digest of Russian Literature
..., ρzp/ρm = 40; c-D/dw = 32, ρzp/ρm = 25; d-D/dw = 32, ρzp/ρm = 10. ρk is apparent resistivity; ρzp is specific resistivity of the zone of penetration...
1966
Athabasca Oil Sands Exploration and Development Investigation Using the Helicopter-Borne Transient Electromagnetic Technique
Search and Discovery.com
... resolution of helicopter frequency domain systems. The resulting resistivity measurements are similar, but with lower vertical resolution...
2013
Reliability estimation of the prediction results by 1D deep learning ATEM inversion using maximum depth of investigation
Hyeonwoo Kang, Minkyu Bang, Soon Jee Seol, Joongmoo Byun
International Meeting for Applied Geoscience and Energy (IMAGE)
..., whereas the values below the MDI showed poor prediction results. In our workflow, the MDI obtained from the predicted apparent resistivity by a shallow...
2022
Geophysical investigation of mine waste in the King River Delta, Macquarie Harbour, Tasmania
Matthew J. Cracknell, Sibele C. Nascimento, Wei Xuen Heng, Anita Parbhakar-Fox, Thomas A. Schaap
Petroleum Exploration Society of Australia (PESA)
...), surface waves (Vs) and apparent resistivity for the Line 1 traverse. Both Line 1 and Line 2 (not shown) cross sections are similar in both...
2019
Resistivity Mapping and Petrophysical Study of Upper Devonian Inter-reef Calcareous Shales of Central Alberta, Canada
R. G. McCrossan
AAPG Bulletin
.... The distribution of these carbonates was detected b mapping the average apparent resistivity of a stratigraphic interval. The basin reached its maximum...
1961
A Practical Model for Organic Richness from Porosity and Resistivity Logs
Q. R. PASSEY , S. CREANEY , J. B. KULLA , F. J. MORETTI , and J. D. STROUD
AAPG Bulletin
...A Practical Model for Organic Richness from Porosity and Resistivity Logs Q. R. PASSEY , S. CREANEY , J. B. KULLA , F. J. MORETTI , and J. D. STROUD...
1990
Telluric Currents and Their Use in Petroleum Exploration
K. Vozoff , R. M. Ellis , M. D. Burke
AAPG Bulletin
..., the resistivity ^rgr can be calculated by EQUATION (2) Even if the earth is not uniform, E and H can still be measured, and an apparent resistivity...
1964