... because the motion of the NMR tool with its magnetic field profile creates time-dependent formation magnetizations, which are not considered in the standard data processing. A newly designed and implemented ROP correction for the slimhole LWD NMR tool results in doubling the ROP. A thorough understanding...

... some appropriate correction to avoid negative value and carefully selecting these raw signals with better s/n ratio. (3) building a layered initial model and forward modeling the theoretical array induction signals based on it's specification of these chosen coils, comparing the modeled signals...

..., the field of advanced gas analysis has developed a method to correct constraints upon the varying efficiency of extraction for specific species of interest, associated with a constant volume, constant temperature mud gas extractor. This method has become recognized in the industry by the name extraction...

... eccentricity effects, it is not always possible to obtain formation shear slowness directly via conventional Slowness-Time-Coherence (STC) methods. Consequently, a dispersion correction is needed to quality control and/or correct the STC result. We propose a hybrid Slowness-Frequency-Coherence (SFC) method...

... is typically provided with limited bespoke calibration, correction, and verification of measurement. The reference depth is important as it is the basis for all subsurface activities, including well construction, well navigation, geological modelling, reservoir description, petrophysical analysis, fluid...

... of this study is to assess, quantify and then correct for the effect of these rare earth elements on the thermal neutron porosity measurement. Applying this process to another well, additionally shows a good agreement between the matrix-corrected hydrogen index and the hydrogen index from the nuclear magnetic...

... precision and image quality. State-of-the-art characterization provides an accurate calibration and environmental correction for various borehole conditions. Close to the gamma ray sensors, there are four ultrasonic transducers that operate in a pulse-echo mode. These transducers provide travel-time...

... intelligence rd annual logging symposium correction gas component ratio fluid typing upstream oil & gas oil-based mud database component ratio degasser Abstract Standard mud gas data is part of the basic mudlogging service and is mainly used for safety. Although the data is available...

... flowline solubility schlumberger exploration conventional degasser spwla-2022-0008 raman spectroscopy spwla 63 spectroscopy degasser correction rd annual logging symposium SPWLA 63rd Annual Logging Symposium, June 10-15, 2022 DOI: 10.30632/SPWLA-2022-0008 KEY ROLE OF REGEARING MUD GAS LOGGING...

... enhanced recovery complex reservoir organic matter log analysis upstream oil & gas annual logging symposium core analysis shale gas spwla-2022-0063 porosity particle size correction msec fracture sample preparation experiment logging symposium imbibition experiment well...

... are reasonably consistent across multiple wells. Manually correcting logs for consistency is laborious, subjective, and error prone. For some logs, such as gamma ray and neutron porosity, systematic inconsistencies or errors can be caused by borehole effects as well as miscalibration. Biased or consistently...

... SPWLA 62nd Annual Logging Symposium, May 17-20, 2021 DOI: 10.30632/SPWLA-2021-0047 A NOVEL THROUGH-CASING CORRECTION ALGORITHM FOR A 4-DETECTOR GAMMA DENSITY TOOL Ya Jin#, Shang Jie, Lin Huang, Zenghui Yu, Min Li, China Oilfield Services Limited; Chen ZengHai, CNOOC China Limited Pengbo Operating...

... production control wellbore integrity machine learning production monitoring production logging artificial intelligence casing design wellbore design well integrity upstream oil & gas spwla 62 information spwla-2021-0045 nd annual logging symposium correction application downhole...

... to calculate the self- spatial flux distribution of thermal neutrons in the shielding factor for the correction of the crack d formation due to the neutron self- characteristic gamma count from boron. The ratio shielding effect, which reduces the detection of characteristic gamma counts of iron is sensitivity...

... production monitoring reservoir surveillance drilling fluids and materials pumpout reconstruction spectrum sensor june 24 contamination drilling fluid formulation assessment spwla 61 correction spectroscopy moc sensor spectra downhole fluid analysis SPWLA 61st Annual Logging Symposium...

... selection and formulation drilling fluids and materials porosity database symposium spectroscopy salinity dwcl correction chlorine measurement borehole chlorine spwla 61 fraction spectrum water salinity gamma ray july 29 algorithm chlorine SPWLA 61st Annual Logging Symposium, June 24...

...ABSTRACT ABSTRACT The Gaymard-Poupon (1968) and Segesman-Liu (1971) equations are widely used to correct density-neutron logs for gas/light hydrocarbons effect. The equations assume an "average" gas and an "average" oil, at "average" reservoirs conditions that might not be applicable in all...

... hole reservoir evaluation operator workflow symposium june 24 well intervention production enhancement correlation pulsed neutron evaluation correction cement bond SPWLA 61st Annual Logging Symposium, June 24 to July 29, 2020 1 CASED HOLE RESERVOIR EVALUATION AS A MEAN OF RISK REDUCTION...

...SPWLA 60th Annual Logging Symposium, June 15-19, 2019 DOI: 10.30632/T60ALS-2019_C 1 DIGITAL ROCK TECHNOLOGY FOR ACCELERATED RCA AND SCAL: APPLICATION ENVELOPE AND REQUIRED CORRECTIONS Nishank Saxena, Amie Hows, Ronny Hofmann, Omer Alpak, Justin Freeman, Matthias Appel, and Jesse Dietderich, Shell...

... organic carbon, Poisson s ratio, and Young s modulus along lateral wells. We emphasize the impact of completion design and hardware on cased-hole measurement, which would require additional casing and cement corrections for pulsed-neutron spectroscopy logs and impose special requirement on sonic tool...