Petrographic Analysis Supporting Electrical Log Interpretation of Volcaniclastic Deep-Water Reservoirs in the West Sumatera Fore-Arc

Deasy Rimanda Cahyaningtyas, Adhe Krisna Wardhana, Roberto Pettinelli, Gilang Ariestya, Hidayat Mukmin, Haris Kurniawan Hidayat

Indonesian Petroleum Association

... of coarse sphaeroidal lapilli-sized aggregates of ash characterized by lower density and reduced porosity. Lithic fragments are sparsely found throughout...

Controls on East Shale Basin reservoir distribution within the Upper Devonian Duvernay Formation, Western Canada Sedimentary Basin

Anna M. Thorson, Elisabeth G. Rau, Stacy C. Atchley, David W. Yeates

Rocky Mountain Association of Geologists

.... Simple, judgement-based visual inspection of the raw well log curves (i.e., gamma-ray, density and neutron porosity, photoelectric factor, and deep...

A New Workflow for Improved Resistivity-Based Water Saturation Assessment in Organic-Rich Mudrocks

Sabyasachi Dash, Artur Posenato Garcia, Laura M. Hernandez, Zoya Heidari

Unconventional Resources Technology Conference (URTEC)

... left to right include, track 1: depth; track 2: zones; track 3: gamma-ray; track 4: deep resistivity; track 5: bulk density and neutron-porosity...

Improved Reservoir Characterization of Bakken-Three Forks: Integrating Special Core Analysis and Petrophysics

Sushanta Bose, Aaron Rodriguez, Jeff Hamman, Virginia Smellie, Carlos Miranda, Josh Miller

Unconventional Resources Technology Conference (URTEC)

..., Bakken, and Three Forks Formations followed by collection of advanced wireline log data. The logs included gamma ray, resistivity, density, neutron...

Life Isnt Perfect: The Petrophysical Difficulties of Modeling the Permian

Tyler Croft, Aidan Blount, Adam McMullen, Sarah Warneke, Melanie Durand, Brian Driskill

Unconventional Resources Technology Conference (URTEC)

...) was calculated using dipole sonic compressional and shear velocities (Vp,Vs) to calculate Poisson’s ratio (PR) (equation 1). The density log was integrated...

Recognition of Unconformities and Sequences in Mid-Continent Carbonates

Richard D. Fritz, Patrick L. Medlock

Tulsa Geological Society

... due to the chaotic nature of karst breccias. Formation density and neutron logs can also reveal a significant increase in porosity associated...

Modernizing Petrophysical Interpretation in Unconventional Reservoirs by Integrating Advanced Well Logs and Core Analysis in High-Definition Wells

Haijing Wang, Luisa Crousse, Sergio Cuervo, Ronald Brown, Andrew Tipton, Tim Fischer, Michael Cheshire, Mason Edwards, Aygul Kostinovsky, Ezequiel Lombardo, Esteban Rives, Ricardo Freitas, Ali Wushur

Unconventional Resources Technology Conference (URTEC)

... to characterize unconventional reservoirs utilizes basic well logs such as gamma ray, neutron porosity, bulk density, resistivity and acoustic logs. The log...

A New Method of Fluid Identification from Nuclear Magnetic Resonance Logs, #41452 (2014).

Charles H. Smith, Layne Hamilton, Lynda Ziane

Search and Discovery.com

... textural changes within the reservoir made it impossible to accurately characterize porosity. In addition, density and neutron responses did not always...

Multidisciplinary Study to Optimize Reservoir Management of North Penwell (San Andres) Unit, Ector County, Texas

W. T. Siemers, D. R. Prezbindowski, V. L. Skinnider, L. C. Maple, M. G. Gerard, M. E. Nagaty, J. J. Howard

Tulsa Geological Society

... quality volumetric determinations of carbonate and evaporite mineralogy were also produced. Sonic, neutron, density, photoelectric, and laterolog...

Methods of Calculating Total Organic Carbon from Well Logs and its Application on Rocks Properties Analysis; #41372 (2014)

S. Z. Sun, Y. Sun, C. Sun, Z. Liu, and N. Dong

Search and Discovery.com

..., density, neutron) in arithmetic coordinate and resistivity log in logarithmic coordinate with fixed superposition coefficient to identify and calculate...

Belridge Giant Oil Field, Diatomite Pool-- Learnings from an Unusual Marine Reservoir in an Old Field, by Malcolm E. Allan, Mahmood Rahman, and Barbara A. Rycerski, #20043 (2006).

Search and Discovery.com

EXTENDED ABSTRACT: The Maverick Basin: New Technology - New Success

Scott, Robert J.

GCAGS Transactions

... density log porosity. The partners agreed to use diamond coring to acquire the much needed lithologic data on the reservoir. A total of five wells...

Abstract: Application of Class-Based Machine Learning for Automated Well Log Interpretation; #91204 (2023)

Mohammed Al-Jubouri, Wassem Alward, Ling Zongfa, Xu Xiaori, Xu Wei, and Zhao Yufang

Search and Discovery.com

... on standard logs (density, neutron, compressional slowness, and gamma-ray, in particular). Commonly, multi-mineral solvers are utilized for this purpose...

NSB 'A' Field: Construction of Geological Model Incorporating Data from the Anomalous Well, NSB-A7

Made D. Sulitra

Indonesian Petroleum Association

... porosity, since it is less severely affected by gas than either the density or neutron logs. Some 147 feet of 175 feet cored interval were recovered...

Geological sequestration capacity of the Dundee Limestone, Michigan Basin, United States

Joshua P. Kirschner, David A. Barnes

Environmental Geosciences (DEG)

... porosity in the Rogers City on a limestone-calibrated neutron porosity log to a more porous section in the Dundee, and (3) a distinct gamma-ray marker...

Integrated rock classification in carbonate formations based on elastic and petrophysical properties estimated from conventional well logs

Mehrnoosh Saneifar, Roy Conte, Clotilde Chen Valdes, Zoya Heidari, and Michael C. Pope

AAPG Bulletin

... for multi-mineral analysis include gamma ray (GR), electrical resistivity, density, neutron porosity, photoelectric factor (PEF), and compressional-wave...

Improved Regional Characterization of Bakken-Three Forks Reservoir Integrating Special Core Analysis, Advanced Logs, and Production Using Petrophysics and Geologic Framework

Sushanta Bose, Virginia Smellie, Jeff Hamman, Josh Miller

Unconventional Resources Technology Conference (URTEC)

... techniques, especially those relying on neutron-density and resistivity logs, may not yield reliable results in formations with low porosity, high clay content...

Characterization of Unconventional Shale Gas Reservoirs using a Shale Gas Facies Expert System to Identify Lithofacies and Optimal Completion Intervals, #80123 (2010)

Arijit Mitra, Daniel Warrington, Duane A. Sommer

Search and Discovery.com

... petrophysical measurements, viz., gamma ray, density, neutron, and resistivity, in conjunction with geochemical, acoustic, and nuclear magnetic resonance...

Geological Controls on Formation Water Salinity Distribution Southeastern Greater Natural Buttes Field, Uinta Basin, Utah; #20213 (2013)

Tuba Evsan, Matthew J. Pranter, and Marc Connolly

Search and Discovery.com

... 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.6 0 NPHI dec 6/17/2013 T10S-R23E-S15 Density Freq Histogram T10S-R23E-S05 Neutron Porosity Freq...

Supervised machine learning sedimentological characterization workflow: A tool to bridge the gap between qualitative and quantitative facies interpretation and uncertainty quantification

Anis Seksaf, Boris Kostic, Chloé Château, Daniel Clay, Kamel Tamene, Meriem Bertouche, Jan Van Der Wal, Raja Ramalingam, Abd El-Aziz Sabry, Boland Ghadeer Taleb, Chen Chao

International Meeting for Applied Geoscience and Energy (IMAGE)

... header Step three – input sensitivity analysis The basic log combination used in the study encompasses Gamma Ray, Density and Neutron logs...

Abstract: Utilizing High-Resolution LWD Images to Improve the Well Productivity by Maximizing Reservoir Contact and Optimizing Completion Design in Carbonate Reservoirs; #91204 (2023)

Hussain Al-Najrani, Ahmed Fateh, Hesham Elmasry, Ahmed Taher

Search and Discovery.com

... Microresistivity Image Real-time Multispacing Resistivity Density Neutron Porosity Gamma Ray (Fig. 3) Integrating multiple logs with the real-time micro...

Successful Story of Proving-Up a New Play, An Eocene Carbonate as a Naturally Fractured Reservoir in Offshore North West Java

Icuk Dwi Wibowo, Sobani, Linda Fransiska, Mery Luciawaty

Indonesian Petroleum Association

... and experienced total loss circulation. The only available e-line log is gamma ray, resistivity and density neutron. K-85 zone has no image log and dipole sonic...

A Tight Gas Sand Reservoir Characterization Approach in Delineating Different Benches across Lower Cotton Valley Rocks

Matthew Chumley, Bhaskar Sarmah, Joseph Anderson, Rojelio Medina, Hoda Tahani

GCAGS Transactions

... volume was first estimated in a different model using density-neutron and gamma ray log inputs. In the final probabilistic mineral volumetric computation...

Interlake Production at Charlson Field, McKenzie County, North Dakota

Edmond E. Bates Jr.

Wyoming Geological Association

... with density/neutron crossplot porosity could be an effective technique. The sonic log reading should be strongly biased toward the microcrystalline...

Thermal maturity of the Barnett Shale determined from well-log analysis

Hank Zhao, Natalie B. Givens, Brad Curtis

AAPG Bulletin

... curves, including bulk density, neutron, and deep resistivity. A typical well-log suite in the field includes gamma-ray, bulk density or density-porosity...