..., 2023. ABSTRACT A new slim multi-detector pulsed neutron wireline logging tool has been developed for open-hole or casedhole formation evaluation saturation analysis and timelapse monitoring. With a greater neutron source output and high-spectral resolution gamma-ray detectors, the tool can be operated...

... on the structure of the detection system, Monte Carlo simulation method is used to model the D-T source instrument for gamma detection and the chemical source instrument for thermal neutron detection. The gamma energy and time spectrum information from multiple gamma detectors are recorded. The two auxiliary...

... of the PNC-based Sigma measured in the observation well after CO2 was injected, from October 4-14, 2004, through the injector well (Sakurai et al., 2006). The measurement was performed using the 1-11/16-inch OD pulsed neutron tool with GSO detectors reported by Roscoe et al.,1991. The salinity of the brine...

...SPWLA 64th Annual Logging Symposium, June 10-14, 2023 DOI: 10.30632/SPWLA-2023-0121 A STEP CHANGE IN NEUTRON-INDUCED GAMMA RAY SPECTROSCOPY: USING A HIGH-RESOLUTION LABR3:CE DETECTOR IN AN INTEGRATED LWD TOOL Fabien Haranger, Francoise Allioli, Markus Berheide, and Paul Craddock, SLB; Daniel...

... was logged with only the new tool after the benefits of the new technology were proven, but this paper will focus on the results from the wells in which both legacy and new tools were directly compared. The key features of the new instrument include: 1) three Lanthanum Bromide (LaBr3) detectors with high...

... using different degassing and gas analysis techniques, including direct mass spectrometry while drilling and laboratory gas chromatography-thermal conductivity detector analysis. Additional proposed developments concerning dedicated natural H 2 logging analyzers are described, e.g., cavity-enhanced...

... Abstract In our previous research which has published in 62th SPWLA symposium, a numerical simulation method was proposed which about the double particle detector CLYC (Cs 2 LiYCl 6 :CE) to get the response of thermal neutron and gamma ray. It is feasible to use CLYC detector in pulsed neutron...

... installation and operations detector identification spwla 63 compton ratio horizontal drain acquisition asphaltene deposition perforation rd annual logging symposium interpretation spwla-2022-0060 SPWLA 63rd Annual Logging Symposium, June 10-15, 2022 DOI: 10.30632/SPWLA-2022-0060 EXPLORING...

... spacing detector was generally used to improve detection sensitivity for quantitatively evaluating gas saturation. However, there are complex formation minerals and pore fluid composition in tight sandstone and carbonate reservoirs, and then it will obviously affect gas saturation evaluation...

... 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...

... upstream oil & gas annual logging symposium well logging spatial dynamic response function azimuthal cement density log analysis eccentricity cement density reservoir characterization detector tool eccentricity china university horizontal well evaluation petroleum gamma-ray...

... halliburton spwla-2022-0124 lamination upstream oil & gas gamma ray sensor precision drilling operation resolution spwla 63 correction university borehole imaging detector assembly rd annual logging symposium transducer Abstract A continuous directional measurement (DM) provides...

... 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...

... use of mechanical calipers to identify fines production-related wellbore enlargement. A new caliper-behind-liner technique has therefore been developed using a multiple-detector density tool. Data from the shorter spacing detectors is used to characterize the properties of the liner as well...

..., the application of through-casing density logging is essential. However, through-casing gamma density measurement could be challenging due to gamma’s weak penetrating power. To better overcome these challenges, a new four-detector gamma density tool is designed and presented in this work together with a novel...

... Abstract In order to better evaluate the formation density, casing and cement ring integrity under casing well conditions, a high precision four detector density logging tool was designed and developed. Theoretical methods and experimental studies are carried out on the relationship between...

... well logging borehole-compensated neutron-gamma porosity measurement optimized borehole effect spwla 61 neutron detector gamma ray july 29 neutron-gamma porosity measurement porosity response count rate june 24 log analysis detector porosity porosity algorithm symposium SPWLA 61st...

...-hole conditions by using a slim pulsed neutron tool with two spectroscopy detectors. One primary limitation is that users must manually provide offsets for the elements (Si, Ca, and Fe) present in casing and cement before performing the oxide closure computation to obtain elemental concentrations...

... of the heavy oil, and such different physical characteristics can be indicated using different spacing detector. In this paper, based on the difference in the neutron moderation ability of CO 2 , water and heavy oil, a three-detector pulsed neutron capture (PNC) logging technique is applied in heavy oil...

... well logging modeling Artificial Intelligence Simulation machine learning Upstream Oil & Gas machine-learning model completion spwla 60 Baker Hughes hyperparameter porosity MC simulation predictive model Symposium well configuration log analysis detector saturation...