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The AAPG/Datapages Combined Publications Database
Showing 1,342 Results. Searched 200,616 documents.
Abstract: Depositional History and Stratigraphy of the Navarro Formation in the Minerva-Rockdale Oil Field, Milam County, TX, by Adam Martin and Christopher Liner; #90176 (2013)
Search and Discovery.com
2013
Abstract: Depositional History and Stratigraphy of the Navarro Formation in the Minerva-Rockdale Oil Field, Milam County, TX, by Adam Martin; #90182 (2013)
Search and Discovery.com
2013
Solutions for Difficult Reservoirs—Direct NMR Fluid Type and Permeability
Search and Discovery.com
N/A
Improvements in Logging Operations and Analysis with a Customized NMR Unconventional Acquisition Mode in the Permian Basin
Mohammad Azeem Chohan, Katerina Yared
Unconventional Resources Technology Conference (URTEC)
... resistivity ranging from 10 inches to 120 inches depth of investigation, and porosity track 3 is bulk density, neutron porosity, caliper...
2023
Abstract: "Good Log Characteristics" for Mesaverde Reservoirs of the Piceance Basin, Colorado: Evaluating Movable Water in Tight, Shaly Sandstones, by Paul E. Devine; #90078 (2008)
Search and Discovery.com
2008
A Way of TOC Characterization on Barnett and Woodford Shale; #80429 (2014)
Sumit Verma, Kurt Marfurt
Search and Discovery.com
... called "Delta log R" method. For calculating TOC, a resistivity log along with a porosity log (P-Sonic, Density or Neutron log) is required (Figure 2...
2014
On Site Well Log Quality Control; #41801 (2016)
Donald G. Hill
Search and Discovery.com
..., R.P.G., L.P.Gp. Slide 19 Massive Anhydrite Density & Neutron Check Donald G. Hill, Ph.D., R.Gp., R.G., R.P.G., L.P.Gp. Slide 20 Acoustic Log...
2016
Petrophysical Rock Typing in Organic-Rich Source Rocks Using Well Logs
Alvaro Aranibar, Mehrnoosh Saneifar, Zoya Heidari
Unconventional Resources Technology Conference (URTEC)
..., neutron porosity (in water-filled limestone porosity units), bulk density, and PEF; Track 6-7: well-log-based estimates of bulk and shear moduli...
2013
Integrated well data and 3D seismic inversion study for reservoir delineation and description
Qazi Sohail Imran, Numair Ahmad Siddiqui, Abdul Halim Abdul Latif, Yasir Bashir, Almasgari Abdalsalam, Abduh Saeed Ali, Muhammad Jamil
Geological Society of Malaysia (GSM)
... not influenced the density and neutron log much, possibly because the apparent difference between gas and oil-bearing formation is little. This observation...
2020
AAPG Archie Series, No. 1, Chapter 10: Modeling Log Responses in Thinly Bedded Reservoirs
Q. R. Passey, K. E. Dahlberg, K. B. Sullivan, H. Yin, R. A. Brackett, Y. H. Xiao, and A. G. Guzmán-Garcia
AAPG Special Volumes
... [.6-m] spacing is illustrated in Figure 10.13. Density and neutron logs. Density and neutron porosity tools employ dual detectors at differing...
2006
Treatise of Petroleum Geology / Handbook of Petroleum Geology: Exploring for Oil and Gas Traps. Chapter 9: Predicting Reservoir System Quality and Performance
Dan J. Hartmann and Edward A. Beaumont
AAPG Special Volumes
... logs The density-neutron log is a combination log that simultaneously records neutron and density porosity. In some zones, porosities recorded...
1999
A Guide to Qualitative Interpretation of South Texas Electric Logs
Alvin L. Schultz
South Texas Geological Society Special Publications
... with a gamma ray and one or more porosity-sensitive logs (preferably a density-neutron combination) is necessary. Figure 15. Lack of appreciable resistivity...
1986
Mudstone Geophysical Properties for Pressure Prediction
Dan Ebrom
GCAGS Transactions
... density-porosity and neutron-porosity cannot distinguish between moveable water and immoveable water. Instead, such measurements produce a number...
2008
Abstract: LITHO, a Computerised Approach to Lithofacies Identification
A. R. Somturk
Geological Society of Malaysia (GSM)
.... The database which is defined from petrographical knowledge and calibrated against intervals whose litholo~j is well known~ currently uses density~ neutron...
1984
Petrophysics and Pore Pressure: Pitfalls and Perfection; #40654 (2010)
Andrew Buffin
Search and Discovery.com
.... • Problems are often restricted to pad tools, for example Density and Neutron logs. • Hence GR for first run non-pad tool usually used as reference log...
2010
Abstract: Formation Evaluation Of Unconventional Reservoirs, #90099 (2009)
Matthew J. Mavor
Search and Discovery.com
... capacity. Porosity is computed from density log data accounting for the free gas and TOC. Shaley sand gas and water saturation calculation methods...
2009
Improved Characterization of Heterogeneous Reservoirs Using Cluster Analysis of Log Data
Search and Discovery.com
..., assumptions of isotropic behavior, or even density-neutron cross-plotting) do not work in tight sands and shales and their use can lead to large...
2013
The Effect Of Mn3O4-K Formate Mud on LWD/LWT Response and Solving Interpretation: Case Study of HPHT Gas Field, Offshore Madura Strait, East Java
Erick Prim Putra, Ryan Surjaudaja, Antonius Himawan, Rizky Ferdiansyah
Indonesian Petroleum Association
... significant changes on several log including gamma ray, resistivity, neutron porosity, density and photoelectric factor. The uniqueness of this mud...
2017
Use of Thermal and Epithermal Neutron Measurements in Shaly Sand Evaluation
John Puffer , Gerrit d'Ablaing IV , Tim Toth , Harold Darling
GCAGS Transactions
..., H., Nagel, W. A., and Alger, R. P., 1965, "The Sidewall Epithermal Neutron Porosity Log, paper SPE 1180 presented at the 1965 SPE Annual Meeting...
1987
2009
Characterization of Carbonates Aids Exploration - Wokshop Summary
Robert Scott, Andrew Petty, Rick Turner
PTTC
... low. Vug/fracture porosity can be calculated by subtracting sonic porosity from total porosity measured by a density or neutron log. The difference...
1999
Wireline Logging Data Acquisitions Using Out of Pipe Logging Technique to Increase Logging Operation Efficiency in Coal Bed Methane Exploration Wells
Hikmat Nugraha, Chandra Dewa Dwiyoga
Indonesian Petroleum Association
... logging techniques like resistivity, gamma ray, neutron porosity, and density porosity are able to provide basic coal quality information (Lehocky...
2012
Innovative Approach for Estimating Organic and Inorganic Porosity in Organic Shale Reservoirs: A Case Study in the Vaca Muerta Formation
Ezequiel F. Lombardo, Haijing Wang, Sergio Cuervo, Luisa Crousse
Unconventional Resources Technology Conference (URTEC)
... porosity and cannot differentiate organic from inorganic pores. For instance, bulk density, neutron porosity, and sonic logs are sensitive to the total...
2025
Tool Descriptions
Richard H. Merkel
AAPG Special Volumes
... with porosity for different matrix velocities. B Density Log The density log is a sidewall pad device which has a source of gamma rays and two receivers...
1979
Pore Pressure Estimation in Complex Lithologies: A Novel Approach in Delaware Basin Wolfcamp
Andy Popielski
Unconventional Resources Technology Conference (URTEC)
... on the sonic log response. The difference between sonic and density porosity is attributed to fluid effects/pore pressure. Results compared to traditional...
2019