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Keywords: spectra
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206291-MS
... and improve reliability. This paper looks at two separate methods that scientists and engineers employ to enable digital twin technology and ultimately identify that a hybrid approach between machine learning and empirical physics'-based modeling prevails. upstream oil & gas filter spectra optical...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195858-MS
... formation tester sensitivity sensor contamination drilling fluid formulation drilling fluid filtrate calibration regression vector carbon dioxide spectroscopy concentration filtrate chemical analysis MOC sensor accuracy interference spectra society of petroleum engineers Introduction...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-196007-MS
... spectra. Proprietary spectral processing algorithms regulate the detector gain without the use of an additional radioactive reference source and compensate for variations of the detector’s energy resolution caused by operating conditions within the borehole that change over time. A general description...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–26, 2018
Paper Number: SPE-191438-MS
... Upstream Oil & Gas borehole Modeling & Simulation different condition well logging variation log analysis detector gamma ray porosity spectra standard spectra elemental standard spectra spectrum hydrogen Weight Fraction elemental concentration standard spectrum...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–26, 2018
Paper Number: SPE-191411-MS
... In order to properly analyze the data from both capture and inelastic energy spectra, a complete set of elemental standards, or basis vectors, must be generated. An elemental standard is best defined as the response of the tool for a single element. As a group, they are used to extract...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181654-MS
... using estimated source spectra for all events. In addition, we detect and locate smaller events that show only clear S-wave arrivals using a template-matching and waveform cross-correlation technique to identify repeating microseismic activities. We obtain the template waveforms by stacking similar...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181503-MS
... such as nitrogen provides differentiated fluorescence emission signatures that can be used to monitor multiple stages of frac operations. well performance mineral oil excitation spectra carbon quantum Upstream Oil & Gas concentration CQD synthesis tracer test analysis chemical precursor...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-175149-MS
... spectra distance away thermal maturity kerogen ch 2 kerogen maturity condensate window Introduction Sedimentary organic matter in shale is changed under the effects of temperature and pressure over geological time to various hydrocarbon products. The level of thermal maturity characterizes...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-178418-MS
... & Gas reduction standard solution transportation crude oil spectra dissolution crude oil-water system Efficiency lwc-water system investigation heptane ionic liquid sample solution HCO interfacial tension Introduction It is estimated that all over the globe there are more than...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-167637-STU
... with different maturity, changes in spectra of certain functional group are observed. These changes show that with increasing maturity, organic matters convert into more aromatics, and less aliphatic group (Craig et al., etc. 2005) SAMPLES AND PROCEDURE Samples The samples for this study are from three...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166121-MS
... measurements and FCP estimated by the NMR tool. The T 2 spectra obtained from the majority of water saturated clastic rocks, with negligible diagenetic effects, is mainly a function of grain size distribution (GSD) and depositional environment (i.e. function of pore size distribution). Based on the physical...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 8–10, 2012
Paper Number: SPE-159503-MS
... recovered is sufficient to perform reliable PVT analyses. research and development otto gor spe 159503 drilling fluid management & disposal optical spectra upstream oil & gas optical density pvt laboratory analysis composition spectra information mnon swd time-depth curve...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 30–November 2, 2011
Paper Number: SPE-146522-MS
... spectroscopy log analysis calibration curve emission spectroscopy elemental concentration spectroscopy intensity calibration standard spe 146522 dual-energy ct plastic sample spectra bulk density society of petroleum engineers Introduction The X-ray CT based nondestructive evaluation...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 2009
Paper Number: SPE-123992-MS
... gamma rays which have characteristic energies. Emitted gamma ray spectra are detected and recorded using a large bismuth germanate scintillation detector coupled to a high-efficiency photomultiplier and pulse-height analyzer. The recorded 256-channel spectra are analyzed to derive individual...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, November 11–14, 2007
Paper Number: SPE-113023-STU
... transform infrared spectroscopy inversion scheme Reservoir Characterization structural geology concentration actual concentration spectra absorbance matrix Standard Deviation mineral concentration reservoir rock mineral quantitative mineralogy Introduction Minerals are the building...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-102401-MS
... unscheduled down time and loss of production. Time based signals and frequency spectra graphs will identify machinery condition and correlate the individual components (gears, shafts, bearings) frequency band. With a condition monitoring index, the individual machinery component "real time" condition...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-102173-MS
... behaviour and the properties of the hardened materials. cement property casing and cementing polymer powder cement composition cement formulation Upstream Oil & Gas polymer composite material flow in porous media Fluid Dynamics particle suspension slurry cement paste spectra cement...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-102770-MS
... neutrons cause the atoms of the various elements to emit gamma rays with characteristic energies. These are measured with a scintillation detector, resulting in both inelastic and capture gamma ray energy spectra. A matrix inversion spectral fit algorithm is used to analyze these spectra in order...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-100739-MS
... system drilling fluids and materials flowline reservoir fluid spectrum co 2 algorithm fluid loss control spectra new method co2 content hydrocarbon Compound Upstream Oil & Gas quantification detection absorption reservoir pvt lab figure spe 100739 petroleum engineer sensitivity...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–29, 2004
Paper Number: SPE-89704-MS
... logging spe 89704 fluid composition analyzer composition spectra gor compositional gradient upstream oil & gas fujisawa optical spectroscopy variation mullin log analysis excitation pvt measurement drilling fluid property drilling fluid chemistry information fluid loss control...

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