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Keywords: neutron
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Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0078
... ABSTRACT Pulsed neutron gamma energy spectroscopy and neutron lifetime measurement systems enable the evaluation of elemental content and the degree of saturation, and recent research has proved that the system can be used to determine neutron porosity. Algorithms introduced in the past have...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0004
... to compute the 1 Nuclear energy can also be used to split water to produce hydrogen. However, it designation as green hydrogen remains controversial. 2 SPWLA-2023-0004 SPWLA 64th Annual Logging Symposium, June 10-14, 2023 density, neutron porosity, and mineralogy to characterize the formation and (ii...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0066
.... Although magnesium elemental weight fraction is measured using newer generation neutron spectroscopy tools, magnesium rich clay minerals are not properly accounted for in vendor-specific oxide closure models correlating rock chemistry with rock mineral composition and in commercial petrophysical software...
Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0077
... the world, such as seismic exploration, CT and well temperature logging, etc. As an important method of gas saturation evaluation in nuclear geophysical exploration, pulsed neutron logging technology also plays an indispensable role in the evaluation of CO 2 distribution. Based on the three-detector...
Proceedings Papers

Paper presented at the SPWLA 62nd Annual Logging Symposium, May 17–20, 2021
Paper Number: SPWLA-2021-0023
... upstream oil & gas absolute error salinity well logging spwla 62 neutron complex reservoir simulation porosity log analysis detector gamma ray fast neutron nd annual logging symposium petroleum thermal neutron gas-saturated formation rgth gas saturation clyc detector...
Proceedings Papers

Paper presented at the SPWLA 62nd Annual Logging Symposium, May 17–20, 2021
Paper Number: SPWLA-2021-0115
... Abstract Unconventional reservoirs have low porosity and complex mineral composition containing quartz, feldspar, calcite, dolomite, pyrite and kerogen, which may seriously reduce the accuracy of the porosity measurement. The multi-detector pulsed neutron logging technique was already used...
Proceedings Papers

Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-NNN
.... The neutron slowing down or capture ability is depending on the formation cross section. Usually, the lithology, porosity and borehole fluid condition will affect the salinity determination when using a neutron logging method. Here, we developed a neutron induced gamma ray spectroscopy logging method...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-XXX
... ABSTRACT The neutron porosity measurement is one of the most widely used well logging technologies. In cased hole, tools equipped with a pulsed neutron generator (PNG) and multiple gamma ray detectors have several advantages over conventional neutron tools with an AmBe source and neutron...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-AAAA
... ABSTRACT Nuclear borehole instruments are ubiquitous in well logging—from bare-bones logging-while-drilling (LWD) gamma to conventional triple-combo and more exotic neutron-gamma capture (Σ) and spectroscopy tools. Now, more than ever, nuclear modeling is being used in-stead of physical...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-WWWW
... be assessed. One such technique was tested at the CO2CRC Otway Research Facility in southwest Victoria, and it is the subject of this paper. Pulsed neutron logging has been used for reservoir monitoring in the oil business for over 40 years. Conventional techniques rely on the measurement of the thermal...
Proceedings Papers

Paper presented at the SPWLA 58th Annual Logging Symposium, June 17–21, 2017
Paper Number: SPWLA-2017-LLL
... ABSTRACT As the depletion of conventional oil and gas reserves, the unconventional resources such as tight or shale gas and oil are increasing important to the energy supplies of our world. Several logging instruments based on pulsed neutron accelerator have been launched to estimate elemental...
Proceedings Papers

Paper presented at the SPWLA 58th Annual Logging Symposium, June 17–21, 2017
Paper Number: SPWLA-2017-IIII
... ABSTRACT Neutron porosity measurements are heavily used in formation evaluation together with density and resistivity logs. Although this measurement provides a good porosity value for a clean formation, it is easily influenced by conditions in the borehole and in the formation being evaluated...

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