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Micelle

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Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16994
... Abstract Critical micelle concentration (CMC) is a known indicator for surfactants such as corrosion inhibitors ability to partition from two phase systems such as oil and water. Most corrosion inhibitors are surface active and at critical micelle concentration, the chemical is partitioned to...
Proceedings Papers

Paper presented at the CORROSION 2020, June 14–18, 2020
Paper Number: NACE-2020-14793
... ABSTRACT Corrosion inhibition is a highly effective strategy for mitigating metal degradation. However, the effect of high temperature on inhibitor effectiveness is not well documented in the literature. More specifically, the concept of critical micelle concentration (CMC), often used to...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13341
... number of alkyl chain carbon (12, 14, 16) at a series of salinity (0.1%, 1% and 10% wt. NaCl) and temperature (30°C, 50°C and 70°C). Each test condition evaluated seven accumulation concentrations of surfactants ranging from 0.1 to 10 times the critical micelle concentrations (CMC) that were determined...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11476
...% wt. NaCl), and temperatures (30°C, 50°C, 70°C). Corrosion rate as a function of inhibitor dosage was determined for each test condition defined by alkyl chain length, salinity, and temperature. The inhibitor dosages were proposed based on a series of proportional CMC (critical micelle concentration...
Journal Articles
Journal of Petroleum Technology 70 (03): 20–22.
Paper Number: SPE-0318-0020-JPT
Published: 01 March 2018
... operator reported that it believed it was overdosing inhibitor at an extra cost of pound 400,000 per year. An alternative corrosion inhibitor monitoring approach, first published in 2011 (NACE 11071), exploits the formation of corrosion inhibitor micelles and poses the questions: Does micelle detection...
Proceedings Papers

Paper presented at the SPE Kingdom of Saudi Arabia Annual Technical Symposium and Exhibition, April 24–27, 2017
Paper Number: SPE-188011-MS
... Ψ o Q   d Ψ Abstract The critical micelle concentration (CMC) of surfactants represent the concentration at which surfactant monomers start to form aggregates in order to minimize the energy of the electrostatic and hydrophobic interactions of the system. At this concentration...
Proceedings Papers

Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-9721
..., leading to false failures in the secondary property testing phase and otherwise good candidates being dismissed. This paper describes a method of exploiting the critical micelle concentration (CMC) of the corrosion inhibitors to show that the use of CMC can be used as a laboratory screening method for...
Proceedings Papers

Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2478
... ABSTRACT Following our preceding papers on the theoretical underpinnings and laboratory development of the micelle detection method, this paper will describe a variety of case studies where it has been applied to systems to investigate the field-relevant functional dose of corrosion inhibitor...
Proceedings Papers

Paper presented at the SPE International Conference & Workshop on Oilfield Corrosion, May 28–29, 2012
Paper Number: SPE-155107-MS
... an anomaly due to background contamination but the signal was consistently higher than the others. This elevated result does correspond to a period of very low corrosion rate being measured by the metal-loss probe and so it is possible that there was an increased corrosion inhibitor micelle...
Proceedings Papers

Paper presented at the CORROSION 2012, March 11–15, 2012
Paper Number: NACE-2012-1289
... to coincide with the formation of surfactant droplets (micelles) in solution at the Critical Micelle Concentration (CMC). Following the initial investigations described at Corrosion 2011, this paper reports on development of a micelle detection instrument which identifies individual particles in a...
Journal Articles
Journal: SPE Journal
SPE Journal 17 (02): 393–401.
Paper Number: SPE-130285-PA
Published: 24 January 2012
... extremely sensitive to micelle presence, have been developed and used during the laboratory testing. Results were compared with those from standard laboratory techniques, including interfacial tension (IFT) and particle-size analyses (diffraction), in order to determine the efficacy for micelle detection...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Corrosion, May 24–25, 2010
Paper Number: SPE-130285-MS
... Figure 1 CTAB model corrosion inhibitor as different representations – molecular, head/tail model, adsorbed on steel pipe, micelle and reverse micelle (left to right). In a single phase in the bulk fluid, the molecules are solvated but unstable. In the hydrocarbon phase, the polar head...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 8–10, 2002
Paper Number: SPE-77795-MS
... reservoir. The essence of this technology is to decrease the water cut of production wells and attain the result of oil production and recovery enhancement by injecting an improved micelle dispersions system. According to lab test, this colloidal dispersion system is a pseudoplastic fluid with temperature...
Journal Articles
SPE Reservoir Engineering 7 (04): 445–452.
Paper Number: SPE-20192-PA
Published: 01 November 1992
...M.I. Kuhlman; A.M. Falls; S.K. Hara; T.G. Monger-McClure; J.K. Borchardt Summary Using surfactants below their critical micelle concentrations, C CMC, toreduce gas mobility throughout a reservoir can be advantageous. When used inreservoir brines below their C CMC inexpensive anionic surfactants...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 20–22, 1991
Paper Number: SPE-21032-MS
... SPE Member Abstract Surfactants are used at high temperatures as additives for steamfloods. and in high-temperature surfactant floods. Most surfactants must be above the critical micelle concentration (CMC) in order to have appropriate properties for forming foams or mobilizing oil. The CMC...
Journal Articles
Journal: SPE Journal
SPE Journal 26 (03): 1436–1454.
Paper Number: SPE-203836-PA
Published: 16 June 2021
... fluid, which resulted in an apparent viscosity of 200 cp for 2 hours. The addition of rod-shaped particles enhanced the micelle to micelle entanglement, especially at VES loading of 2 wt%. The use of nanoparticles enhanced the micelle/micelle networking, boosting the fluid-storage modulus and enhancing...
Proceedings Papers

Paper presented at the CORROSION 2020, June 14–18, 2020
Paper Number: NACE-2020-15079
... means of injecting corrosion inhibitor molecules in the oil stream is an effective and low cost solution. 1–3 In the bulk phase, corrosion inhibitors aggregate as micelles above their critical micelle concentration (CMC). The CMC of corrosion inhibitors decreases with the length of the alkyl tail. In...
Proceedings Papers

Paper presented at the SPE Saudi Arabia Section Technical Symposium and Exhibition, April 8–11, 2012
Paper Number: SPE-160844-MS
... damage mechanisms of current fluid systems and introduce an advanced surfactant micelle fluid technology for tight gas reservoir stimulation. Surfactant micelle fluids structured from very low-molecular-weight surfactants into elongated micelles have been used as stimulation fluids in an attempt to...
Proceedings Papers

Paper presented at the SPE Bergen One Day Seminar, April 22, 2015
Paper Number: SPE-173855-MS
... hydrocarbons are present in the oil. Different mixtures of alkanes did not produce any micelle. In oil containing stearic acid it was observed that around 95% of the initial stearic acid was accumulated in the micelles and only 5% was found in the floating oil. In oil samples containing heptanoic acid only 50...
Journal Articles
SPE Drilling & Completion 14 (04): 240–246.
Paper Number: SPE-59478-PA
Published: 01 December 1999
... properties to the fluid. Unlike guar-based fluids for the VES system, no crosslinker is necessary. There is a repulsive interaction in the micelle structure, primarily between the positively charged head groups. This repulsive force make the micelles assume a spherical shape, leading to a fluid of brine-like...

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