ABSTRACT: Basin-Wide Delineation of Gas Shale Sweet SpotsŽ using Density and Neutron Logs; Implications for Qualitative and Quantitative Assessment of Gas Shale Resources; #90122 (2011)

Mark Ver Hoeve, Steven Corey Meyer, Joseph Preusser, and Astrid Makowitz

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... and maturity, the density and neutron logs are used to map the “sweet spots”. “Apparent Shale Porosity” *Thickness (PHIas*H) maps are created using...

Seeing Is Believing: Object Based Facies Distribution and Porosity Modeling Using Facies- Based External Histograms Puts Geology back into Geostatistics

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Computerized Process for Interpretation of Well Logs in Naturally Fractured Reservoirs: ABSTRACT

Roberto Aguilera, Luis A. Acevedo

AAPG Bulletin

... such as resistivity, density, neutron, and sonic. The theoretical background behind the interpretation techniques is presented with examples of its application...

Abstract: Geological Controls on Permeability Distribution and Sand Distribution: Tar Zone, Fault Block IIA, Wilmington Field, by D. K. Davies and R. K. Vessell; #90945 (1997).

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Abstract: Applications of Source-Less NMR Technology in Integrated Formation Evaluation for Tarmat Identification, Geosteering, and Smart Completions Design … A Case Study from Middle East Jurassic Reservoir; #90319 (2018)

Atul K. Anurag, Anoop Mishra, Mohamed A. AlBlooshi, Khalil I. Hosany, Ghassan Al-Jefri, Charles Smart, Pranjal Bhatt, Sanathoi Potshangbam, Ahmed Soliman

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... was established between the NMR porosity, density/neutron porosity and core porosity to enhance confidence on NMR measured porosity. The NMR permeability index...

ABSTRACT: Interpretation of Well Log Response in the Austin Chalk, by Gregory S. Hinds; #91003 (1990).

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ABSTRACT: Nuclear Logs Identify Gas-Bearing Sands, by Jack Bowler; #90156 (2012)

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ABSTRACT: Seeing Is Believing: Object Based Facies Distribution and Porosity Modeling Using Facies-Based External Histograms puts Geology back into Geostatistics; #90051 (2006)

Christian J. Heine, Jim Wilkins, J. E. Nieto

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... and permeability tend to get ‘smoothed' across the bed boundary. Logging tools such as gamma-ray, sonic, density and neutron have a three foot averaging window...

ABSTRACT: Recognizing High-Porosity/Low-Permeability Sandstone Reservoirs with Routine Logs: Case History, by Hughbert Collier; #90996 (1990).

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AAPG Methods in Exploration No. 13, Chapter 18: Gamma-ray, Spectral Gamma-ray, and Neutron-density Logs for Interpretation of Ordovician Volcanic Rocks, West Cumbria, England

David Millward, Simon R. Young, Brett Beddoe-Stephens, Emrys R. Phillips, and Chris. J. Evans

AAPG Special Volumes

... from country rock, and they facilitate correlation among closely spaced boreholes. Bulk-density and neutron-"porosity" logs aid in identification...

ABSTRACT: Reservoir Characterization of Mississippian St. Louis Carbonate Reservoir Systems in Kansas, Stratigraphic and Facies Architecture Modeling; #90013 (2003)

Lianshuang Qi, Timothy R. Carr

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... petrofacies using suites of log curves (GR, resistivity, density and neutron porosity, and PE). Using the Kipling approach, log attributes from more...

Basic Log Analysis Resolved a Heterogeneous and Complex Carbonate Pore Type Problem

Al Hafeez, Ananto Wibisono, Rochmad, Dadi Lestiyardi

Indonesian Petroleum Association

... the secondary porosity by subtracting the total porosity form density and/or neutron log. Nonetheless, the method is still debatable by looking...

ABSTRACT: New Technique to Estimate High Resolution Porosity and Permeability of Carbonate Reservoirs from Electrical Borehole Images: A Case Study from Offshore Southern Mexico; #90061 (2006)

Vivek Chitale, John Quirein, Rodolfo Escobar, and Antonio Sanchez Trejo

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..., and a transform is constructed to equate the image data to porosity. Density-neutron-cross-plots and NMR log are respectively used to calibrate the conductivity...

Statistical Analysis of Correlation of Porosity and Permeability Determinations from Well Cuttings Using a Portable pNMR Apparatus with Conventional Core Analysis and Wireline Log Readings: ABSTRACT

Eric L. Nigh, Alun H. Whittaker, John D. MacPherson

AAPG Bulletin

... Core Analysis and Wireline Log Readings: ABSTRACT Eric L. Nigh, Alun H. Whittaker, John D. MacPherson 1985 673 673 69 4. (April) The porosity...

Evaluation of Logging While Drilling Technology, Offshore, East Kalimantan

S. Sutiyono

Indonesian Petroleum Association

... wireline log data were acquired in 12 wells. The measurements included resistivity, gamma ray, neutron, density, and photoelectric factor. In general...

Hugoton Field

Editors: Edward D. Dolly and James C. Mullarkey

Rocky Mountain Association of Geologists

.... Densitylneutron logs were not recorded at this time, although for reference, density neutron logs from the subsequent Run 2 are displayed next to the Run 1 dual...

Abstract: How Thin Is Thin? Facies-Based Porosity Modeling Using Externally Derived Histograms Puts Geology Back into Geostatistics, by Christian J. Heine and Jim Wilkins; #90082 (2008)

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Abstract: Yates Formation (Late Guadalupian) Facies Tracts, and Depositional and Diagenetic Models Permian Basin, by H. S. Nance; #90089 (2009)

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Application of High-Resolution Blended Resistivity Measurement in Characterization of Unconventional Plays

Anthony Moherek, Sandeep Mukherjee, Nick Garrison, Allison Caraway, Rojelio Medina, Bhaskar Bikash Sarmah

Unconventional Resources Technology Conference (URTEC)

... Figure 1: Raw resistivity, density, and neutron porosity, as obtained from the tool, for the entire log section (left) and in the zone of interest (right...

Chapter 9: Basinwide Delineation of Gas-shale “Sweet Spots” Using Density and Neutron Logs: Implications for Qualitative and Quantitative Assessment of Gas-shale Resources

Mark Ver Hoeve, Corey Meyer, Joe Preusser, Astrid Makowitz

AAPG Special Volumes

... of the three gas shales, including the Marcellus, was a markedly higher-density porosity response and density/neutron log approach to the point of crossover...

ABSTRACT: Petrophysical Modeling for Evaluating Moldic Porosity in Carbonate Reservoirs, by Rourke, Marvin; Soleiman, Wael; Truax, Jerome; Quirein, John; #90141 (2012)

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Improved Characterisation of Carbonate Reservoirs Using Non-Linear Modelling

M. Prins

Geological Society of Malaysia (GSM)

... open hole logs. Although the database included density, neutron, gammaray and resistivity log responses, log derived porosity (calculated from density...

Invasion Profiles from Porosity Log Interpretation and Relationships with Formation Permeability in Tight Gas-Bearing Sandstones, by Michael Holmes, Dominic Holmes, and Antony Holmes

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Invasion Profiles from Porosity Log Interpretation and Relationships with Formation Permeability in Tight Gas-Bearing Sandstones, by Michael Holmes, Dominic Holmes, and Antony Holmes; #90042 (2005)

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Developing an Oil Generation Model for Resource Assessment of Bakken Formation, Williston Basin: ABSTRACT

Ronald R. Charpentier, Katherine B. Krystinik

AAPG Bulletin

... as the main hydrocarbon source rock within the Williston basin. The data consisted of formation temperatures and of density, neutron-porosity...