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1-20 of 154
Keywords: salinity
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Proceedings Papers
Andrew C. Johnson, Laurent Mossé, Yevgeny Karpekin, Ulises D. Bustos, Violeta Lujan, Akinlolu Williams
Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0042
... evaluation workflows. A key challenge arises when integrating advanced dielectric and geochemical spectroscopy logs, each of which yields independent outputs for water saturation and salinity through distinct measurement physics. Present workflows designed to reconcile these and other quantities do...
Proceedings Papers
Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0033
... logging is less sensitive to the salinity of the formation water, low porosity will reduce the resolution of the C/O response envelope (Ma, et al., 2021). In addition, energy spectrum processing is a kind of complicated and challenging work, the interpretation results are always related to spectral data...
Proceedings Papers
Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0103
... 65 geologist artificial intelligence saturation neutron decay spectrum salinity between-class variance detector pnn SPWLA 65th Annual Logging Symposium, May 18-22, 2024 DOI: 10.30632/SPWLA-2024-0103 BOREHOLE EFFECT CORRECTION IN PULSED NEUTRON-NEUTRON LOGGING FOR FORMATION CAPTURE CROSS...
Proceedings Papers
Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0055
... of its components and microscopic structure. A dedicated interpretation model has been developed to invert DDL data and obtain high-resolution (cm-scale) estimates of shallow water volume fraction, shallow water salinity, and a textural parameter that is correlated to Cation Exchange Capacity (CEC...
Proceedings Papers
The Neutron Porosity Logging Method Based on D-D Generator with Dual Pulse Mode in Sidetracking Well
Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0119
... geology porosity geologist rock type neutron porosity annual logging symposium carbonate rock well logging neutron spwla 65 th annual logging symposium neutron generator salinity detector evaluation sedimentary rock mineral log analysis thermal neutron sensitivity china...
Proceedings Papers
Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0139
... geologist salinity accuracy mineral log analysis geology well logging th annual logging symposium rock type calculation information reservoir conversion coefficient anp gamma spectra spwla-2024-0139 spwla 65 proportion elemental spectroscopy gamma spectrum SPWLA 65th Annual...
Proceedings Papers
Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0122
... resistivity data of rock samples under different salinity and saturation conditions were obtained. After then, we used the ColeCole model to fit those complex resistivity curves to obtain important parameters including low-frequency resistivity, relaxation time constant and frequency exponent. The results...
Proceedings Papers
Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0013
... geologist drilling fluids and materials th annual logging symposium subsurface storage climate change spwla 65 preparation contamination log analysis spwla-2024-0013 sampling tracer salinity enable low contamination water sampling geology well logging concentration cleanup...
Proceedings Papers
Shuvajit Bhattacharya, Sahar Bakhshian, Sue Hovorka, Carlos Uroza, Seyyed Hosseini, Alex Bump, Ramon Trevino, Iulia Olariu, Autumn Haagsma
Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0003
... in the saline aquifer and depleted reservoirs (Furre et al., 2017; Gupta et al., 2020; Hovorka et al., 2013). Recently, Global CCS Institute (2022) provided a comprehensive status update on CCS facilities in different operational and development stages around the world. These studies have indicated that we need...
Proceedings Papers
Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0010
... ABSTRACT Dissolution of CO 2 in saline waters is considered one of three main CO 2 trapping mechanisms along with structural/stratigraphic trapping and mineralization. CO 2 can dissolve in fresh/saline water under typical reservoir pressure and temperatures. Its solubility is dependent...
Proceedings Papers
Robert Laronga, Erik Borchardt, Barbara Hill, Edgar Velez, Denis Klemin, Sammy Haddad, Elia Haddad, Casey Chadwick, Elham Mahmoodaghdam, Farid Hamichi
Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0001
... ABSTRACT Participation in over 80 carbon capture and sequestration (CCS) projects spanning 25 years has led to the evolution of a recommended well-based appraisal workflow for CO 2 sequestration in saline aquifers. Interpretation methods are expressly adapted for CCS applications to resolve...
Proceedings Papers
Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0093
... clay and interstitial water current paths. Clavier et al. (1977) discovered during the field testing of the new 1.1 GHz electromagnetic propagation tool that there existed a volume of clay water of near constant salinity in shales. These two concepts are not accounted for in the Waxman-Smits model...
Proceedings Papers
Zulkuf Azizoglu, Zoya Heidari, Leonardo Goncalves, Lucas Abreu Blanes de Oliveira, Moacyr Silva do Nascimento Neto, Rodolfo Araujo Victor
Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0117
... Abstract Fluid saturations and distributions, water salinity, pore structure, and porosity affect dielectric permittivity measurements. However, the conventional dielectric permittivity mixture models, such as Complex Refractive Index Model (CRIM) and Hanai-Bruggeman (HB) do not quantitatively...
Proceedings Papers
Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0116
...-Carboniferous sandstone. Relevant environmental corrections were applied to the data except for the formation water salinity correction. The hydrogen index values are obtained from the thermal neutron porosity measurement using corrections incorporating the measured sigma from the gamma ray spectroscopy tool...
Proceedings Papers
D. Serrano, D. P. Ortiz, T. J. Acosta, H. Canarete, D. Cifuentes, A. Hanif, F. Le, E. Frost, Jr., M. Mendez, L. Laguna
Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0122
... of formation and contrasting injected waters altering formation water salinity to variable levels. Conventional logs fail to accurately predict oil/water saturation and reservoir quality under these conditions. Multifrequency dielectric measurements were acquired and inverted using a newly developed radial...
Proceedings Papers
Scott J. Jacobsen, Keith Bartenhagen, Barbara I. Anderson, Frank Shray, James Hemingway, Eric Decoster, Peter R. Swinburne
Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0004
.... However, conductivity by itself intrinsically combines water saturation with water salinity, a parameter which petrophysicists constantly struggle to determine in many situations. The arrival of wireline dielectric measurements provided complementary petrophysical and electromagnetic information, which...
Proceedings Papers
Barbara I. Anderson, Frank Shray, Jim Hemingway, Eric Decoster, Peter R. Swinburne, Scott J. Jacobsen
Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0022
... with dielectric inversion quantities. On the reservoir scale, dielectric measurements in general have proven to be a useful tool for estimating water saturation independently of water salinity. Dielectric inversion of LWD array propagation measurements provides this information at radial depths away from...
Proceedings Papers
Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0091
... upstream oil & gas sandstone reservoir salinity mdpnt saturation climate change gas reservoir porosity hydrogen index injection subsurface storage correlation simulated co 2 natural gas spwla-2022-0091 rd annual logging symposium SPWLA 63rd Annual Logging Symposium, June 10-15, 2022...
Proceedings Papers
Andrew C. Johnson, Jeffrey Miles, Laurent Mosse, Robert Laronga, Violeta Lujan, Niranjan Aryal, Dozie Nwosu
Paper presented at the SPWLA 62nd Annual Logging Symposium, May 17–20, 2021
Paper Number: SPWLA-2021-0077
... and rock texture. However, the pre-requisite knowledge of formation water properties, particularly salinity, is often either unknown, varying with depth or lateral extent, or is difficult to derive from traditional methods. A high degree of variability may be present due to fluid migration from production...
Proceedings Papers
Paper presented at the SPWLA 62nd Annual Logging Symposium, May 17–20, 2021
Paper Number: SPWLA-2021-0033
... in the industry due to its deepest depth of investigation (DOI, up to 8 ft). However, the method suffers from higher uncertainty when formation water is very fresh or has mixed salinity. Dielectric permittivity and conductivity dispersion have been used to estimate S w and salinity. The current dielectric...
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