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The AAPG/Datapages Combined Publications Database
Showing 20,631 Results. Searched 200,691 documents.
Why Use Geology for Clinton Exploration? (Examples and Reasons from Guernsey County, Ohio)
Brian Keltch, Consolidated Resources of America, Inc.
Ohio Geological Society
... depositional environments and patterns include: sandstone isopach maps, gamma-ray log cross- sections, log signatures, and slice...
1985
A Multilog-Evaluation Package Using Linear Programming Techniques to Evaluate Porosity and Lithology in Hydrocarbon Bearing Complex Lithologies
P. J. D. van Ditzhuijzen, D. Masson
Southeast Asia Petroleum Exploration Society (SEAPEX)
... be defined for several logs including the neutron and sonic logs, lithodensity log, (micro-) resistivity log and natural gamma ray spectroscopy log...
1984
Mineralogy of Some Pennsylvanian Carbonate Rocks of Illinois
Raymond Siever, Herbert D. Glass
Journal of Sedimentary Research (SEPM)
..., reveal that significant quantities of ferroan-dolomite are present. Methods of analysis were: (1) X-ray diffraction patterns for estimation...
1957
Field Testing of the Industrys First All-Muds At-Bit Resistivity Tool
Tsili Wang
Unconventional Resources Technology Conference (URTEC)
... and temperature, and 3-axis shock and vibration. Azimuthal gamma ray or annular pressure measurements may be provided simultaneously from a 6.75-in or larger tool...
2025
Identification and distribution of hydraulic flow units of heterogeneous reservoir in Obaiyed gas field, Western Desert, Egypt: A case study
Mohamed A. Kassab, Ahmed Elgibaly, Ali Abbas, and Ibrahim Mabrouk
AAPG Bulletin
... hydraulic flow units depends on integrating well logs, routine core data, and minerals analysis by using x-ray diffraction analysis and scanning electron...
2021
Shale brittleness prediction using machine learning—A Middle East basin case study
Ayyaz Mustafa, Zeeshan Tariq, Abdulazeez Abdulraheem, Mohamed Mahmoud, Shams Kalam, and Rizwan Ahmed Khan
AAPG Bulletin
..., compressional wave velocity, gamma ray, and photoelectric absorption cross-section index) with mineralogy-based BI (Heidari et al., 2014; Lai et al...
2022
Well Log Data Conditioning Using a Rock Physics Modeling Approach: Examples From the Banyu Urip Field, Cepu KKS, East Java Basin
Shiyu Xu, Soman Chacko
Indonesian Petroleum Association
... on the order in which the different pore types are added into the system. Xu et al. (2006) proposed a new implementation of the DEM theory to solve...
2008
Environmental Challenge as a Geologist
Bernold M. Hanson
GCAGS Transactions
..., Dallas, Texas: March 19, 1992. Ray, D. L., 1992, Washington Times, April 12, 1992. Reilly, W., 1991, Ozone hole worse than expected: Nature, v. 350...
1994
Cone-in-cone Concretions from Western New York
Richard A. Gilman, William J. Metzger
Journal of Sedimentary Research (SEPM)
...-ray analysis shows all of the CaCO3 in the concretions to be calcite. The predominate clay minerals are illite and chlorite. The concentration...
1967
The Asteroidal Impact Theory and Some Geologic Evidence for Asteroidal Impacts on Earth: A discussion of Direct and Indirect Data of Extraterrestrial Bodies and Their Motions and How They May Have Affected Earth Structures
Robert E. Cohenour, Byron J. Sharp
Utah Geological Association
... indicates that the coincidence of age is damaging to a ‘failure to agglomerate’ theory; the cosmic ray or exposure age should be much greater, and the high...
1987
The application of phased-array vibrator system in deep seismic exploration
Minghao Yu, Xiangbo Gong, Xiaojie Wan
International Meeting for Applied Geoscience and Energy (IMAGE)
... and superiority of the phased-array vibrator system technology in the theory and the practice through the forward modeling and the field experiment. Wang...
2022
Wave scattering by the formation velocity perturbation surrounding a fluid-filled borehole
Zhou-Tuo Wei
International Meeting for Applied Geoscience and Energy (IMAGE)
... theory into the acoustic logging to evaluate the formation heterogeneity by the backward scattered dipole S-S coda wave, and successfully applied...
2022
Monopole slow formation shear head wave Greens function in a LWD borehole acoustic configuration
Tim Geerits, Stefan Schimschal, Anna Swiatek
International Meeting for Applied Geoscience and Energy (IMAGE)
... the borehole fluid slowness ( S f ). To underpin this belief, one typically refers to Snell’s law which (only) gives a specialized ray-theoretical...
2022
Seismic intelligent characterization of paleocave filling types in deeply buried carbonate reservoirs
Jiangyun Zhang, Fei Tian, Wenxiu Zhang, Wenhao Zheng, Wang Zhang, Zhongxing Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
..., the spatial distributions of the paleokarst reservoirs were interpreted by the sequence stratigraphy and paleokarst geology theory. The filling structure...
2022
CO2-Shale Reactivity at the Matrix-Fracture Interface
Sean Sanguinito, Patricia Cvetic, Angela Goodman, Barbara Kutchko, Sittichai Natesakhawat
Unconventional Resources Technology Conference (URTEC)
... volumetric gas sorption and density function theory (DFT) methods to characterize and quantify the reactions that occur between CO2, fluids...
2019
Extended Elastic Impedance (EEI) Approach for Telisa Sandstones Reservoir Characterization Case Study: Lambda-Mu-Rho (LMR) Analysis
Antoni Bahar MH, Ari Setiawan, Syahrial Rakimi, Yudi Yanto
Indonesian Petroleum Association
... data in CDP gather format and three well log data sets. The well logs consist of compressional sonic, shear sonic, density, gamma ray, and calculated...
2007
Application of Zero Offset 2D CRS-Stack Method for Low Fold Data: Synthetic and Real Data Examples
R. Sule, A. Hendriyana, P. D. Anggraini, Fatkhan, Alfian, Sardjito, Waluyo, Adriansyah
Indonesian Petroleum Association
... Edge, 21(10), hal 1010-1015. Bortfeld, R., 1989, Geometrical Ray Theory: Rays and Traveltimes in Seismic Systems (2nd Order Approximations...
2009
Gated based quantum computer algorithm for geophysical inversion
Jorge E. Monsegny, Daniel Trad, Don C. Lawton
International Meeting for Applied Geoscience and Energy (IMAGE)
... and present some conclusions. It is challenging to introduce the basic quantum computing theory in an expanded abstract, so we will mention the important...
2023
Kriging-based surrogate models for convergence acceleration of Markov chains: An example of magnetotellurics-dix joint inversion
Alejandro Quiaro, Mauricio D. Sacchi
International Meeting for Applied Geoscience and Energy (IMAGE)
... the uncertainty is through probabilistic inversion, which is based on Bayes theory and allows the analysis of the probability of different models to satisfy...
2024
Deposition of Free Oil by Sediments Settling in Sea Water
O. A. Poirier , George A. Thiel
AAPG Bulletin
... been contributed, there still does not seem to be a single theory acceptable to petroleum geologists. This paper shows how oil might be carried down...
1941
The Technology of the Joint Inversion of Conventional Well Logs for Evaluation of Double Porosity Carbonate Formations; #41942 (2016)
Elena Kazatchenko, M. Markov, A. Mousatov, E. Pervago
Search and Discovery.com
... of the following conventional logs: P- and S-wave transit times, resistivity, density, neutron porosity, gamma ray, and photoelectric absorption...
2016
Could Organic Rich, Black Shales Be A Source For MVT Deposits?, #80615 (2017).
Bryan Bottoms, Adriana Potra
Search and Discovery.com
... basinal strata, especially with regards to Zn. • Shales are very radioactive (enriched in Th, U, and K see gamma ray log below) and the ores are very...
2017
Subseismic Fault Identification Using the Fault Likelihood Attribute: Application to Geosteering in the DJ Basin
Ron Harris, Kyle Bracken, Bill Miller, Steve Angelovich, Thomas O'Toole
Unconventional Resources Technology Conference (URTEC)
... likelihood attribute is based on structure-oriented semblance and so is, in theory, able to detect “zero-offset” faulting. Fault likelihood detects...
2019
Gas Producing Zones of Greenbrier (Mississippian) Limestone, Southern West Virginia and Eastern Kentucky
Arthur C. Youse
AAPG Bulletin
.... The data for this study consist of 151 sample logs compiled and described by the writer. Additional control was afforded by gamma-ray logs...
1964
Predicting unconventional reservoir potential from wire-line logs: A correlation between compositional and geomechanical properties of the Duvernay shale play of western Alberta, Canada
Marco Venieri, Per K. Pedersen, David W. Eaton
AAPG Bulletin
... degree of correlation between core-measured mineral components and two wire-line logs: pulsed neutron spectroscopy (PNS) and spectral gamma ray (SGR...
2021