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• W4241840897 abstract "Novel Method for Monitoring and Controlling Asphaltene Deposition in Crude Oil M. Means M. Means Baker Petrolite Corporation Search for other works by this author on: This Site Google Scholar Paper presented at the SPE Western Regional Meeting, Bakersfield, California, March 2001. Paper Number: SPE-68850-MS https://doi.org/10.2118/68850-MS Published: March 26 2001 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Means, M. Novel Method for Monitoring and Controlling Asphaltene Deposition in Crude Oil. Paper presented at the SPE Western Regional Meeting, Bakersfield, California, March 2001. doi: https://doi.org/10.2118/68850-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu nav search search input Search input auto suggest search filter All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE Western Regional Meeting Search Advanced Search AbstractBaker Petrolite has developed a new proprietary method of detecting the asphaltene content of crude oil. The method employs a spectroscopic probe detection technique that measures the amount of dissolved asphaltenes in the crude directly without sample preparation. The device is suitable for both discrete or continuous in-process sample measurements. Laboratory and field test data are presented. The new technique compares with traditional methods of asphaltene characterization including IP-143 extraction gravimetric analysis and ADT spectroscopic methods. This technique, combined with asphaltene inhibitor/dispersant injection control, provides a novel method for the control of asphaltene deposition in crude oil production systems.IntroductionThe deposition of asphaltic material from crude oil is a well-characterized operational problem associated with the production and refining of crude oil. The details of asphaltene characterization, deposition, and deposition inhibition have been reported in numerous references.1,2,3,4 There is a tremendous economic benefit to the continuous inhibition of asphaltene deposition and avoidance of costly mitigation techniques.5Many inhibitors and dispersants have been developed to prevent the deposition of asphaltenes in well bores and pipelines.2,3,4,5 In the past, the effectiveness of these inhibitors is typically measured by analyzing discrete crude samples with laboratory test methods such as the IP-143 extraction gravimetric test and the ADT spectroscopic test.6 These laboratory methods work reasonably well, but are very time-consuming and labor intensive. None of the current laboratory methods of asphaltene analysis are feasible for field use.Other types of in situ asphaltene monitoring devices have been developed based on acoustic particle size monitors and are described in the literature.7 However, since these devices measure asphaltenes by analyzing deposition, it can be difficult to differentiate asphaltene deposition from other types of deposition such as paraffin, scale, and biomass commonly found in production systems.Description of the BPC Asphaltene ProbeDue to the proprietary nature and pending patent issues, many of the details of this new technique are beyond the scope of this paper.The proprietary BPC probe is a fiber optic device that utilizes a special optical crystal that is capable of making measurements in very dense liquids such as crude oil. The probe takes measurements within a few nanometers of the crystal surface. Over a specific spectral range, the probe can determine differences in asphaltene content in a crude sample by direct measurement. These measurements are based on relative differences in absorbance. To determine asphaltene concentrations of specific samples, the probe has to be calibrated to the specific crude with an external empirical method, such as IP-143 or the ADT method.The novelty of this approach is the direct analysis of the crude oil sample without any laboratory preparation prior to the test. This technique can be used either with discrete samples or as an in-situ, on-line measurement. The probe is designed to withstand process conditions up to 300°F in temperature and up to 3000 psi. Keywords: society of petroleum engineers, novel method, injection rate, scale inhibition, concentration, crude oil, upstream oil & gas, production chemistry, oilfield chemistry, wax remediation Subjects: Production Chemistry, Metallurgy and Biology, Inhibition and remediation of hydrates, scale, paraffin / wax and asphaltene This content is only available via PDF. 2001. Society of Petroleum Engineers You can access this article if you purchase or spend a download." @default.
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• W4241840897 title "Novel Method for Monitoring and Controlling Asphaltene Deposition in Crude Oil" @default.
• W4241840897 doi "https://doi.org/10.2523/68850-ms" @default.
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