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The AAPG/Datapages Combined Publications Database
Showing 26,326 Results. Searched 200,357 documents.
Magnetotelluric for Petroleum Investigation
Bayu A. Pramudhita, Deni Saputra, Royo Handoyo, Suchandra, Irkham Wahyu S.
Indonesian Petroleum Association
...) and magnetic (H) field. The frequency ranges are between 0.0001 kHz up to 1 kHz. Apparent resistivity {Pxy = 0.2*T [Ex / Hy]2} is the key of MT...
2010
Introduction
Richard H. Merkel
AAPG Special Volumes
... into the undisturbed formation to determine the true resistivity. As a result of invasion, what we measure with resis ivity tools is, in fact, an apparent...
1979
Guard Electrode
H. K. McArthur
Tulsa Geological Society
... resistivity, mud resistivity, hole size, and apparent resistivity. This is the case for non-invaded formations. Ra equals apparent resistivity...
1952
Time lapse in-hole electrical resistivity surveying during a shallow release of CO2 gas: Harvey, Western Australia
Brett Harris, Alex Costall, Hoang Nguyen, Karsten Michael, Ludovic Ricard, Barry Freifeld, Arsham Avijegon, Andrew Pethick
Petroleum Exploration Society of Australia (PESA)
... Representation of Time Lapse Dipole- Dipole Data Apparent resistivity for all time-lapse dipole-dipole quadrupoles can be simultaneously represented...
2019
Supplemental Geologic Tools
R. G. Hamilton
Oklahoma City Geological Society
... is quite deep, the apparent resistivity values of the Induction curve may often be corrected to true resistivity if the porosity of the bed is known...
1958
Resistivity Imaging and Natural Potential Applications to the Antioch Fault Zone in the Onion Creek / Barton Springs Segment of the Edwards Aquifer, Buda, Texas
Mustafa Saribudak, Brian Hunt, Brian Smith
GCAGS Transactions
... ft thick on the upthrown side and about 100 ft of apparent thickness on the downthrown side. The resistivity results from the southern bank...
2012
Does Lightning Strike Twice?
H. Roice Nelson Jr., Les R. Denham, Jim Siebert, Kathleen S. Haggar
GEO ExPro Magazine
...’ (Figure 2). Earth as Capacitor Corpus Christi Figure 3: Comparing 2017 lightning-derived apparent resistivity cross-section with the equivalent 1986...
2018
Study of Core Resistivity Profiles and Their Bearing on Dipmeter Survey Interpretation by Computers: ABSTRACT
Z. V. Jizba
AAPG Bulletin
...Study of Core Resistivity Profiles and Their Bearing on Dipmeter Survey Interpretation by Computers: ABSTRACT Z. V. Jizba 1963 1772 1772 47 9...
1963
Comparison of Electrical Logs and Physical Parameters of Marine-Sediment Cores: ABSTRACT
Frank B. Chmelik, Arnold H. Bouma, Richard Rezak
AAPG Bulletin
... 2034 53 9. (September) Spontaneous potential and modified point resistivity logs were made from select cores of marine sediments. The logs have been...
1969
Reconstruction of Conventional Plot & Method to Define and Produce Bypassed Hydrocarbon Zone in a Low Resistivity Low Contrast (LRLC) Reservoir, a Case Study of Offshore North West Java Area
Didit Putra Kusuma, Shofiyuddin, Riezal Arieffiandhany, Bertha Sondang M, Wisnu Wijanarko, Atmaji Nugroho
Indonesian Petroleum Association
... including utilization of Buckle Plot and Apparent Water Resistivity (Rwa). Buckle plot has been introduced since 1965 (Buckle, 1965:42-52) and principally...
2018
Application of an Innovative AEM System for Mapping Hazards and Water Resources in Oil and Gas Fields; #20304 (2015)
Scott R. Napier, Bill Brown, Shannon Frey
Search and Discovery.com
... groundwater thought to be contained in quaternary paleochanels. Modeling and interpretation of the data has resulted in imaging of subsurface resistivity...
2015
Use of Large Potential Probes for Evaluating the Productivity of Carbonate Sediments
A. S. Pestrikov
Petroleum Geology: A Digest of Russian Literature
... in specific resistivity are weakly contrasted on the apparent resistivity logs. These shortcomings are absent with potential sondes, which approach...
1963
Integrated geophysical image of the hot spring in Rokan Hulu, Riau, Indonesia
Nur Islami, Mitri Irianti
Geological Society of Malaysia (GSM)
... electrodes, then a voltage measurement between two potential electrodes is measured to compute the apparent resistivity of the subsurface medium...
2019
The Gunung Wayang-Windu Geothermal Area in West Java
S. Sudarman, R. Pujianto, B. Budiarjo
Indonesian Petroleum Association
... of the resistivity gradient which is the slope of the descending branch of the apparent resistivity curve. A direct theoretical correlation between...
1986
Transformation of Resistivity to Pseudovelocity Logs
Albert J. Rudman , Joseph F. Whaley , Robert F. Blakely , Maurice E. Biggs
AAPG Bulletin
.... Y. Kim, called the "scale function," equates pseudotransit times TT^prime and the apparent resistivity Ra: TT^prime = A + (B)Ra
1975
DC Resistivity, Ground-Penetrating Radar, and Soil and Water Quality Data Combined to Assess Hydrocarbon Contamination: A Case Study in Arizona
Alvin K. Benson, Nathan Brett Mustoe
Environmental Geosciences (DEG)
... electrodes selected by a switching box. The Wenner sounding array configuration was used in this survey. The apparent resistivity is calculated from...
1996
A Guide to Qualitative Interpretation of South Texas Electric Logs
Alvin L. Schultz
South Texas Geological Society Special Publications
... of several zones in the same well where it is fairly apparent from log responses that the lithology, water resistivity, and porosity are fairly uniform...
1986
Characterization of near-surface fractures for hydrogeological studies using azimuthal resistivity survey: A case history from the Mamu Formation, Enugu (Nigeria)
Ahamefula U. Utom, Benard I. Odoh, Daniel K. Amogu, Amobi C. Ekwe, Boniface C. E. Egboka
Environmental Geosciences (DEG)
...., 2000, The effectiveness of azimuthal apparent resistivity measurements as a method for determining fracture strike orientations: Geophysical...
2013
Some Results of a New Magnetotelluric Survey in the Area of the Polish Outer Carpathians
Micha Stefaniuk
AAPG Special Volumes
... then subjected to qualitative and quantitative interpretation. The first stage of interpretation gave apparent resistivity and phase pseudosections...
2006
Effective Well-Log Evaluation of Light-Oil Zones, Dagang Oil Field, China
Tan Ting-Dong, Shang Hai-Chou, Li Sheng-Yan
Circum Pacific Council Publications
... zone whose total water saturation, calculated with deep laterolog resistivity, is 68% (apparent oil saturation is only 32%). However, if the true...
1989
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)
... cavities can produced a measurable change in the apparent resistivity especially for shallow bedrock. The seismic refraction method is the most wi...
1999
Cleat Detection in Coalbeds Using the Microlog
Michael J. Mullen
Rocky Mountain Association of Geologists
..., moderately cleated, or poorly cleated. The microlog curves were normalized between the resistivity of the mud and 30 times mud resistivity to define...
1991
Geophysical Investigation for Groundwater Exploration at UKM's Kuala Pilah Matriculation Centre, Negeri Sembilan
Abdul Rahim Samsudin, Abdul Ghani Rafek, Umar Hamzah
Geological Society of Malaysia (GSM)
... the approximate apparent resistivity of the earth material within the area of influence. The theory and technique of geoelectrical sounding and its interpretation...
1996
Defining Boundaries and Structures of Broadlands Geothermal Field, New Zealand, by Geophysical Methods--Case History
G. F. Risk
AAPG Special Volumes
.... The main problem was that the six apparent resistivity contour maps obtained did not agree with one another very well. However, reasons for most...
1981
Stratigraphic Control and Formation Evaluation of Horizontal Wells Using MWD
L. R. B. Hammons, E. K. Fisher, D. H. Sellers
Pacific Section of AAPG
... and horizontal boreholes (high apparent dip).3-5 The dipping bed model used in this paper simulates the resistivity response to a series of parallel beds...
1992