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The AAPG/Datapages Combined Publications Database

Showing 26,326 Results. Searched 200,357 documents.

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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-1C...

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

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