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Microemulsion

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Journal Articles
Journal: SPE Journal
SPE J. (2023)
Paper Number: SPE-213846-PA
Published: 16 February 2023
... tension (IFT) is understood, the mechanisms of nanoemulsion and microemulsion forming surfactants for higher imbibition recovery are not as clear. Herein, we conducted a series of imbibition experiments on a visual fracture-matrix micromodel, aiming to directly observe the imbibition processes...
Journal Articles
Journal: SPE Journal
SPE J. (2022)
Paper Number: SPE-209470-PA
Published: 05 December 2022
... that pressure has a significant effect on the surfactant microemulsion phase behavior, shifting it from an optimal three-phase system at low pressure to a nonoptimal two-phase system at high pressure. Further, multiple scans at different water/oil ratios (WORs) show a shift in the optimum indicating that phase...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 25–29, 2022
Paper Number: SPE-209470-MS
... microemulsion phase behavior, shifting it from an optimal three-phase system at low pressure to a non-optimal two-phase system at high pressure. Further, multiple scans at different oil-water ratios show a shift in the optimum indicating that phase behavior partitioning of the various components is changing...
Proceedings Papers

Paper presented at the SPE Conference at Oman Petroleum & Energy Show, March 21–23, 2022
Paper Number: SPE-200122-MS
... Abstract Microemulsion phase behavior studies are essential for screening surfactants for improving oil production. The paper presents a modified Hydrophilic-Lipophilic Deviation – Net Average Curvature (HLD-NAC) model to explicitly express the solubilization ratio with respect to a newly...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, March 22–25, 2022
Paper Number: OTC-31684-MS
... Abstract In a case study of four wells located in offshore Sabah Malaysia, a field application using microemulsion technology to develop a customized in-situ breaker solution enhanced production rate by removing oil-based mud (OBM) and synthetic based mud (SBM) filter cake and remediating near...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, December 6–7, 2021
Paper Number: SPE-204378-MS
... The pentane was used as the oil phase in all experiments. The sodium dodecyl sulfate (SDS) was used as the surfactant. And the N-butanol was used as the co-solvent. Potassium chloride (KCl) was used to control the salinity of the surfactant solutions. Three microemulsion-forming surfactant...
Journal Articles
Journal: SPE Journal
SPE J. 26 (04): 2231–2244.
Paper Number: SPE-205381-PA
Published: 11 August 2021
...) and diluted microemulsion (DME) is presented to plug fractures and enhance water imbibition to recover oil from the tight, naturally fractured carbonate reservoirs. DME with different electric charges is compared through contact-angle and core-imbibition tests to evaluate their performances on EOR...
Journal Articles
Journal: SPE Journal
SPE J. 25 (06): 3002–3016.
Paper Number: SPE-202468-PA
Published: 17 December 2020
...Zhidong Zhang; George W. Scherer; Robert K. Prud’homme Summary The performance of oil‐well cement is altered if contaminated by spacers. Very few studies in the literature are found on this topic, in particular for newly developed microemulsion spacers. Therefore, it is worth investigating...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 26–29, 2020
Paper Number: SPE-202062-MS
... performed for the correlated custom-made microemulsion technology, which enhanced post-fracture flowback to shorten operational time and increase the return on investment ratio and production. Field results and post-fracture completion production are promising. Several post-fracture completion production...
Journal Articles
Journal: SPE Journal
SPE J. 25 (05): 2663–2677.
Paper Number: SPE-196097-PA
Published: 15 October 2020
... to replace surfactants in forming Winsor types of microemulsions: Type I O/W, Type II W/O, or Type III bicontinuous microemulsion (Lago et al. 2012 ; Rodríguez‐Escontrela et al. 2016 ). Phosphonium‐based SAILs with chloride or dodecyl sulfate anions were shown to be effective in reducing the IFT...
Journal Articles
Journal: SPE Journal
SPE J. 25 (03): 1070–1081.
Paper Number: SPE-190278-PA
Published: 11 June 2020
... change, such as the phase number and compositions. In this paper, we develop the first‐of‐its‐kind microemulsion viscosity model that gives continuous viscosity estimates in composition space. This model is coupled to our existing HLD‐NAC phase‐behavior EoS. The results show that experimentally measured...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-196097-MS
... concentration optimum salinity surfactant formulation Upstream Oil & Gas sandpack recovery factor injection oil sand complex reservoir emulsion contact angle ASB NaCl microemulsion ionic liquid Oil Recovery surface tension Introduction Heavy oil reserves are very large and count...
Proceedings Papers

Paper presented at the SPE Nigeria Annual International Conference and Exhibition, August 5–7, 2019
Paper Number: SPE-198875-MS
... to the remediation of near wellbore damage include, poor selection of candidate wells and improper selection/deployment of the remediation technology. Microemulsion fluids have been successfully deployed to effectively manage the persistent problem of near-wellbore damage in Rona Field. This technical paper...
Journal Articles
Journal: SPE Journal
SPE J. 24 (06): 2541–2554.
Paper Number: SPE-191719-PA
Published: 12 July 2019
... recovery can be altered with the delivery of microemulsion and surfactant micelles into the pore network. New 3D kerogen models are presented using atomistic modeling and molecular simulations. These models possess important chemical and physical characteristics of the organic matter of the source rock...
Proceedings Papers

Paper presented at the SPE Western Regional Meeting, April 23–26, 2019
Paper Number: SPE-195362-MS
...) effects of wettability, salinity and microemulsion (ME) additive on imbibition oil recovery. First, we evaluate wettability by conducting spontaneous imbibition experiments using reservoir oil and brine (with salinity of 141,000 ppm) on six twin core plugs from the Montney Formation. In addition, we...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 18–21, 2019
Paper Number: SPE-194838-MS
... into production. This solution is based on microemulsion chemistry. Microemulsions consist of mixtures of oil and water, along with surfactants and other components. These fluids are optically transparent, thermodynamically stable, possess extremely low interfacial tension, and require minimum or zero energy...
Proceedings Papers

Paper presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, February 5–7, 2019
Paper Number: SPE-194363-MS
... Abstract We analyzed flowback and post-flowback production data from a horizontal well in the Montney Formation, which was fractured with water containing a microemulsion additive. This well was shut-in for 7 months after 5 months of post-flowback production. Oil and gas rates were...
Proceedings Papers

Paper presented at the SPE International Heavy Oil Conference and Exhibition, December 10–12, 2018
Paper Number: SPE-193642-MS
... the Rheology and Stability of Oil-Water emulsions . J. Food Science 49 ( September ). DOI: 10.1111/j.1365-2621.1984.tb14968.x Lee , J. and Babadagli , T. 2017 . Screening of Chemicals for Low Cost Heavy Oil Recovery through Microemulsion Stability Tests . SPE/IATMI Asia Pacific Oil...
Journal Articles
Journal: SPE Journal
SPE J. 24 (02): 647–659.
Paper Number: SPE-194022-PA
Published: 19 November 2018
...V. A. Torrealba; R. T. Johns; H.. Hoteit Summary An accurate description of the microemulsion-phase behavior is critical for many industrial applications, including surfactant flooding in enhanced oil recovery (EOR). Recent phase-behavior models have assumed constant-shaped micelles, typically...
Journal Articles
Journal: SPE Journal
SPE J. 23 (05): 1899–1908.
Paper Number: SPE-179845-PA
Published: 17 October 2018
.... Recently, there have been increased efforts in microemulsion‐phase‐behavior modeling capabilities by relying on the hydrophilic/lipophilic‐difference (HLD) measure for surfactant‐affinity quantification. One common assumption of most microemulsion‐phase‐behavior models is the assumption of pure excess...

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