Sensitive Monitoring of the Minimum Inhibitor Concentration under Real Inorganic Scaling Scenarios.

Autor:	Freitas VMS; Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil., Paschoalino WJ; Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil., Vieira LCS; Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil., Silva JM; Leopoldo Américo Miguez de Mello Research and Development Center, Petrobras, Rio de Janeiro, RJ 21941-598, Brazil., Couto BC; Leopoldo Américo Miguez de Mello Research and Development Center, Petrobras, Rio de Janeiro, RJ 21941-598, Brazil., Gobbi AL; Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil., Lima RS; Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, São Paulo 13083-970, Brazil.; Institute of Chemistry, University of Campinas, Campinas, São Paulo 13083-970, Brazil.; Federal University of ABC, Santo André, São Paulo 09210-580, Brazil.; São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo 09210-580, Brazil.
Jazyk:	angličtina
Zdroj:	ACS omega [ACS Omega] 2024 Aug 15; Vol. 9 (38), pp. 39724-39732. Date of Electronic Publication: 2024 Aug 15 (Print Publication: 2024).
DOI:	10.1021/acsomega.4c04912
Abstrakt:	Flow assurance is a long-term challenge for oil and gas exploration as it plays a key role in designing safe and efficient operation techniques to ensure the uninterrupted transport of reservoir fluids. In this regard, the sensitive monitoring of the scale formation process is important by providing an accurate assessment of the minimum inhibitor concentration (MIC) of antiscale products. The optimum dosage of antiscale inputs is of pivotal relevance as their application at concentrations both lower and higher than MIC can imply pipeline blockages, critically hindering the entire supply chain of oil-related inputs and products to society. Using a simple and low-cost impedimetric platform, we here address the monitoring of the scale formation on stainless-steel capillaries from its early stages under real topside (ambient pressure and 60 °C) and subsea (1000 psi and 80 °C) sceneries of the oil industry. The method could continuously gauge the scale formation with a sensitivity higher than the conventional approach, i.e., the tube blocking test (TBT), which proved to be mandatory for avoiding misleading inferences on the MIC. In fact, whereas our sensor could entail accurate MICs, as confirmed by scanning electron microscopy, TBT suffered from negative deviations, with the predicted MICs being lower than the real values. Importantly, the impedance measurements were performed through a hand-held, user-friendly workstation. In this way, our method is envisioned to deliver an attractive and readily deployable platform to combat the scale formation issues because it can continuously monitor the salt precipitation from its early stages and yield the accurate determination of MIC. Competing Interests: The authors declare the following competing financial interest(s): W.J.P., V.M.S.F., L.C.S.V., J. M. S., B.C.C., A.L.G. and R.S.L. are listed as inventors on a patent filing application describing this technology. (© 2024 The Authors. Published by American Chemical Society.)
Databáze:	MEDLINE
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