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The AAPG/Datapages Combined Publications Database
Showing 22,173 Results. Searched 200,357 documents.
Basic Relationships of Well Log Interpretation: Chapter I
George B. Asquith, Charles R. Gibson
AAPG Special Volumes
... of the mudcake Rmf - resistivity of mud filtrate Rs - resistivity of shale Rt - resistivity of uninvaded zone (true resistivity) Rw - resistivity of formation...
1982
Illuminating Reservoirs With Electromagnetics
Leonard J. Srnka
Indonesian Petroleum Association
... computers. But remote resistivity determination is not a "magic bullet" for hydrocarbon identification (as well log interpretation cautions us!) since...
2008
Shaly Sand Analysis: Chapter 3
George B. Asquith
AAPG Special Volumes
..., and the determination of total shale porosity (tsh) is still questionable (Dewan, 1983). Also, the problem of determining the resistivity of the dispersed clay...
1990
A Comprehensive Approach to Water Volume Estimation in Unconventional Shale Reservoirs Through Physics-Informed Statistical Modeling
Bo Gong, Aygul Kostinovsky, Mehrnoosh Saneifar, Luisa Crousse, Mason Edwards
Unconventional Resources Technology Conference (URTEC)
...’s equation, water saturation is controlled by porosity 𝜙𝜙 and the contrast between formation water resistivity (Rw) and true formation resistivity...
2024
U.S. Gulf Coast Field Experience with Thin-Bed Well Log Analysis
Tony D. Lawrence , Ashok K. Sinha , Walter H. Fertl
GCAGS Transactions
... depth of investigation, it can delineate beds as thin as 3 in. Furthermore, the measured resistivity can be enhanced to estimate true thin-bed...
1990
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)
...] Measurement specification Output Five array resistivities, true resistivity Rt, diameter of invasion, invaded zone resistivity Rxo Logging Speed Up...
2017
Integration of geology, petrophysics, and reservoir engineering for characterization of carbonate reservoirs through Pickett plots
Roberto Aguilera
AAPG Bulletin
... that a Pickett crossplot of interparticle porosity vs. true resistivity (in some cases, apparent resistivity or true resistivity affected by a shale group...
2004
Basic Open Hole Tools: Part 4. Wireline Methods
Mark W. Alberty
AAPG Special Volumes
... devices are used to determine formation resistivity at varying distances from the wellbore, which is used for correlation and the determination of water...
1992
Field Salinity Determinations and Sulphide Contamination
Robert Schwab
CSPG Bulletin
...Field Salinity Determinations and Sulphide Contamination Robert Schwab 1958 245 247 Vol. 6 (1958) No. 10. (November) Field determination of chloride...
1958
Shaly Sand Log Analysis Using Cation Exchange Capacity Data
Darrell C. Bush, Ralph E. Jenkins
Indonesian Petroleum Association
... of the technically sound Waxman-Smits-Thomas method more popular. Nomenclature Rt = True formation resistivity, ohm meters Rw = Formation brine...
1977
Electrical Resistivity an Aid in Core-Analysis Interpretation
G. E. Archie
AAPG Bulletin
... by true mathematical equations, these relations do follow definite trends. The electrical resistivity which is found useful in outlining different...
1947
Abstract: Evaluation of Low Resistivity, Low Contrast Productive Reservoir in the Malaysian Fields
Ahmad Sharby
Geological Society of Malaysia (GSM)
... principally from the presence of clay and other conductive minerals in reservoir sections and from underestimates of the true formation resistivity...
1997
Concluding Remarks - Application of Resistivity-Tool-Response Modeling for Formation Evaluation - Archie Series No. 2
Hezhu Yin
AAPG Special Volumes
... relentlessly sought the true formation resistivity, Rt, the crucial property needed to estimate formation hydrocarbon saturation and reserves...
2011
Methods of Determining the True Water Saturation of an Oil-Bearing Stratum
P. K. Gur’ba
Petroleum Geology: A Digest of Russian Literature
... area is cited. See Table 1. Table. Results of Determination of the True Water-Saturation of Productive Sands The porosity (kp) of the sandstone...
1959
The Use of Electrical and Seismic Methods for Imaging Shallow Subsurface Structure of Limestone at Batu Caves, Kuala Lumpur, Malaysia
Abdul Rahim Samsudin, Mohammed I. Abu Shariah, Umar Hamzah
Geological Society of Malaysia (GSM)
... Abstract: Geoelectrical resistivity and seismic surveys were conducted to investigate subsurface structure of a selected limestone area at Batu Caves...
1999
Determination of Cementation Exponent (M): Chapter II
George B. Asquith
AAPG Special Volumes
... the technique to this example, a correct m value can be determined. A Pickett crossplot is based upon the observation that true resistivity (Rt...
1985
Recognition of an Oil-Wet Carbonate Reservoir in the Mississippian Chester B-Zone Major County, Oklahoma
G. B. Asquith
West Texas Geological Society
... Interpretation: PennWell Publ. Co., 361 p. Diederix, K. M., 1982, Anomalous relationships between resistivity index and water saturations in the Rotliegend...
2020
Recognition of an Oil-Wet Carbonate Reservoir in the Mississippian Chester B-Zone, Major County, Oklahoma
G. B. Asquith
West Texas Geological Society
... Interpretation: PennWell Publ. Co., 361 p. Diederix, K. M., 1982, Anomalous relationships between resistivity index and water saturations in the Rotliegend...
1996
Resistivity Mapping and Petrophysical Study of Upper Devonian Inter-reef Calcareous Shales of Central Alberta, Canada
R. G. McCrossan
AAPG Bulletin
... to true resistivity would not be practical, nor is it necessary since we need not be concerned with absolute values but only with the relative values...
1961
The Effect of KOH Lignosulfanate Drilling Muds on Spontaneous Potential Log Interpretation
P. J. Cockcroft, Imanudin, J. A. Owens, Basuki Wiwoho
Indonesian Petroleum Association
.... This is simplified by using equivalent resistivities such that: Equivalent and true resistivity relationships for NaCl solutions are shown in Chart SP-2...
1986
An Advanced Interpretation Technique Integrates Well Log and Core Data for Thin-Bed Reservoir Evaluation
Ashok Sinha , Tony Lawrence , Bill Simmons
GCAGS Transactions
.... This tool has a relatively shallow depth of investigation but the calculated resistivity can be enhanced as discussed later to estimate true thin-bed...
1989
Reservoir Characterization of Horizontal Wells in CD Carbonate Formation with Advanced LWD Technology
Budi Abrar, Zeindra Ernando, Dian Permanasari, Ihsan Taufik Pasaribu
Indonesian Petroleum Association
... for resistivity and sigma determination. The resistivity and sigma data therefore are more representative of the flushed zone than the true formation properties...
2016
Log Evaluation of Wells in the Tuscaloosa Trend of South Louisiana
John A. Stevenson
New Orleans Geological Society
... of it (i.e., SARABAND* and Dual Water), and the parameters that must be measured or otherwise determined are: RT - True Formation Resistivity QE - Effective...
1981
A Success Story in Identifying and Testing Strategy: Drilling the Stratigraphic Trap of Low-Resistivity Pay Reservoirs in the Upper Cibulakan Formation, Offshore Northwest Java Basin
Mohammad Reza, Darmawan B. Prihanto, Kinanti S. Anggarini, Raden Sebastian, Muhammad Arief Akbar
Indonesian Petroleum Association
... a true resistivity of 1-3ohmm. Structural play in ONWJ Mature Block has been massively explored and now is time to start exploring a new play...
2023
Application of the Dual Porosity Concept for Well Log Interpretation of Jatibarang Volcanic Tuff
Soewono, Setyoko
Indonesian Petroleum Association
.... "Determination of true porosity and mineral composition in complex lithologies with the use of Sonic, Neutron and Density Survey". SPE Reprint Series...
1987