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The AAPG/Datapages Combined Publications Database
Showing 1,341 Results. Searched 200,691 documents.
Reservoir Quality: Part 6. Geological Methods
S. P. Grier, D. M. Marschall
AAPG Special Volumes
...) lithology indicators--gamma ray, sonic, density, and neutron logs, (2) porosity logs--sonic, density, and neutron logs, and (3) fluid saturation logs...
1992
Preliminary Investigation: To Estimate the Freshwater/Saline-Water Interface Position Trinity Aquifer Bexar County, Texas
Alvin L. Schultz
Bulletin of South Texas Geological Society
... in porous zones in Lower Glen Rose and Cow Creek zones Combination array induction and density-neutron log showing porosity development in lower Glen...
2003
Critical Porosity in Understanding Acoustic Porosity Anomalies. A Case Study in Complex Carbonate Reservoir in Indonesia
Aditya Arie Wijaya, Sunawar Kunaifi, Krishna Pratama Laya, Luqman, Dimmas Ramadhan
Indonesian Petroleum Association
..., the difference between sonic porosity and the total porosity from other log measurements, such as density, neutron, densityneutron combination, and/or NMR...
2022
Producing Characteristics and Depositional Environments of Lower Pennsylvanian Reservoirs, Parkway-Empire South Area, Eddy County, New Mexico
A. D. James
AAPG Bulletin
... porosity thickness map (Figure 7). Fig. 3. Compensated density-neutron log from Southland Royalty Company 1 Parkway State well. End_Page 1045...
1985
Petrophysics of Oil Reservoirs in the Eromanga Basin, South Australia
D. I. Gravestock, E. M. Alexander
Petroleum Exploration Society of Australia (PESA)
...) is the chief factor affecting core-log porosity correlation, with the density method yielding generally better results. A gamma ray-based empirical formula...
1989
Application of Borehole Image-Based Porosity Analysis in Carbonate Reservoirs to Assist in Permeability Calculation and Its Integration With Resistivity Inversion to Distinguish Productive Vuggy Zones and Tight Zones
Elvara Priyanka, Didit Kusuma, Budi Abrar, Nabilah Adani, Dian Permanasari
Indonesian Petroleum Association
... to permeability. When compared with effective porosity calculated from conventional openhole logs (density-neutron), zones with an abundance of solution-enhanced...
2022
Use of Well Logs in Evaporite Sequences
Roy D. Nurmi
Special Publications of SEPM
... neutron logs were the only porosity log. Presently, neutron logs are usually recorded simultaneously and plotted with a density log (see figure 8.5...
1987
Well Log Evaluation of the Wolfcamp Sandstones, Terrell County, Texas
Lee Sanders
West Texas Geological Society
... shading in Track 1 and Track 2 of the well log display. In Track 2 the shading is activated when the neutron porosity value is less than the density...
1994
Introduction: Chapter 1
George B. Asquith
AAPG Special Volumes
... hydrogen content. As a result, calculated neutron porosity errs by being oo high. Finally, the last porosity log in our list, the density log...
1990
Probabilistic Reservoir Characterization via Seismic Elastic Inversion in East Andaman Basin; #40880 (2012)
Mahendra Kishore, Pritam Jha, Dino Ros, and Alfonso Iunio Marini
Search and Discovery.com
... for the electrofacies definition: GR (Gamma ray) DT (Sonic P-wave) NPHI (Neutron porosity) RHOB (Bulk density) The additional estimator DNDIF...
2012
Reservoir Permeability In Difficult Carbonate Reservoirs
Search and Discovery.com
N/A
Log dependent approach to predict reservoir facies and permeability in a complicated shaly sand reservoir
Abdelrahman Elkhateeb, Reza Rezaee, Ali Kadkhodaie
Petroleum Exploration Society of Australia (PESA)
... The density porosity from the high-resolution density log The repeat formation tester mobility Core permeability and core porosity from the cored well...
2019
Geologic-carbon-sequestration potential of the Ordovician St. Peter Sandstone, Michigan and Illinois Basins, United States
David A. Barnes, Kevin M. Ellett, and John A. Rupp
Environmental Geosciences (DEG)
... (GLND) Formations (Fms). Dashed red log in track 2 is the average density and neutron porosity logs (PHIA) with a greater than 10% cutoff shown with red...
2017
Improved identification of pay zones through integration of geochemical and log data: A case study from Upper Assam basin, India
N. Mathur, S. V. Raju, T. G. Kulkarni
AAPG Bulletin
... distribution of n-alkanes. LLD = laterolog deep; LLS = laterolog shallow; MSFL = microspherically focused log; RHOB = density; NPHI = neutron porosity...
2001
Study of the Atoka Reservoir in the Putnam Atoka Field, Southwestern Dewey County, Oklahoma
Garin Wente
Oklahoma City Geological Society
... the average of the density- and the neutron-porosity log readings. The porosity value from each well will be used later for calculating water saturations...
2012
Estimating Porosity from Determinsitic Inversion (Paper C6)
M. Sams, T. J. Focht, J. Ting
Geological Society of Malaysia (GSM)
... and neutron porosity logs and the saturations are estimated using the Dual-Water equation. These petrophysical results are then used in a rock physics...
2012
Identification of Natural Fractures from Conventional Wireline Logs, #40833 (2011)
Cody Knepper
Search and Discovery.com
...) is an analysis that takes conventional log data and subsequently extracts information as to the presence and density of natural fractures in a wellbore...
2011
Kleinholz Paleozoic Field Study Kimball County, Nebraska
Howard L. Sahl, Frank I. Pritchett Jr., Peter T. Loeffler
Rocky Mountain Association of Geologists
.... Because the sandstone is thin, it is convenient to use the recently developed "high resolution" density-neutron porosity logs with their expanded...
1993
Cherokee: T. 37 S., R. 23, SLB&M: San Juan County, Utah
Cindy L. Crawley Stewart, Karn F. Riley
Utah Geological Association
... size varies Logging Practice: GR-Dual Laterolog - MSFL-Cal, GR-Density-Neutron-Cal, GR-Sonic -Cal Number of Producing Wells: 4 Number of Abandoned...
1993
Evacuation Creek Park Mountain: T. 11 S. & 12 S., R. 25 E, SLB&M: Uintah Co., Utah: T. 2 S. & 3 S., R. 104 W.: Rio Blanco Co., Colorado
Paul Lipinski
Utah Geological Association
... Completion Practice: Perforate, acidize, and frac, if necessary Logging Practice: Dual Induction w/Gamma Ray, Density Neutron Long Spaced Sonic...
1993
Applications of MWD Technology in Nonconventional Wells, Prudhoe Bay, North Slope Alaska*
A. B. Cunninghaml, K. Jayl, and E. Opstad
Fort Worth Geological Society
... identification of fluid contacts. Gas-Light-Oil Contact Neutron-porosity time-lapse, near- and far-count overlay, and density-neutron crossover techniques provide...
1993
Well Log Quality Control: What You Dont Know Can Hurt You; #41627 (2015)
Donald G. Hill
Search and Discovery.com
... Massive Anhydrite Density & Neutron Check Donald G. Hill, Ph.D., R.Gp., R.G., R.P.G., L.P.Gp. Slide 17 No Vender Wants to Deliver Bad Data Donald...
2015
Petrophysical Analysis of Shaly Sandstones Using Integrated Wireline Log Interpretation
Han Li, Phebe Deyhim, Zuhair Al-Shaieb, Jim Puckette
Kansas Geological Society
...-resolution neutron- and density-log porosity was compared to core-plug porosity (Fig. 2). Density porosity shows the best correlation with core porosity...
1999
A Deterministic Lithology Model for the Green River-Upper Wasatch Interval of the Uinta Basin; #10745 (2015)
Robert Cluff, Suzanne Cluff, Ryan Sharma, Chris Sutton
Search and Discovery.com
... and UMAA are calculated by Equations 1 and 2, respectively: (1) (2) where: ρb = bulk density (log) ɸND = neutron-density crossplot porosity ρfl = fluid...
2015
Hydrocarbon Potential of Tight Sand Reservoir (Pab Sandstone) in Central Indus Basin-Pakistan; #50608 (2012)
M. Anwar Moghal, M. Ishaq Saqi, and M. Athar Jamij
Search and Discovery.com
... affect. However, few clean sandstone beds with gauge hole exhibit good porosity in the range of 15-20%. In such sections Density-Neutron log also...
2012