Controlling gelation time of in situ polymerization of gel system through AGET ATRP principle

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Shao Ming lu; Yue Xiang an; He Jie

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Journal Paper

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Journal: IRANIAN POLYMER JOURNAL Year:2020 | Volume:29 | Issue:3 Page(s): 275-286

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Title

Controlling gelation time of in situ polymerization of gel system through AGET ATRP principle

Author(s)

Shao Ming lu | Yue Xiang an | He Jie

Keywords

Low permeability reservoir

Deep profile control

In situ polymerization

Gelation time

AGET ATRP initiating system

Abstract

To better control the gelation time of in situ polymerization of gel system in reservoir, an activator regenerated by AGET (activator generated by electron transfer) ATRP (atom transfer radical polymerization) initiating system was developed. The AGET ATRP initiating system was composed of an initiator 1, 2-dibromoethane, a catalyst ferric chloride and a reducing agent vitamin C, and the effects of these three component proportions on the gelation time and gel viscosity were systematically investigated. Results of bottle tests indicated that the gelation time can even be more than 20 h at 60 °, C at optimal concentration ratios. Moreover, the viscosity decreased and the gelation time increased with the increase of salinity and temperature. The gelation time of the core test was 1. 5 times or even longer in comparison with that of the bottle test owing to the influences of dilution, adsorption, and rock skeleton isolation. It was also confirmed that the AGET ATRP initiating system can initiate the cross-link gelation of monomers in the core. The enhanced oil recovery result indicated that the oil recovery increased by 9. 17% after the gelation of the gelling solutions, and final oil recovery was 40. 05%. This research provided a brand-new method to control the gelation time of the in situ polymerization of gel system.

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APA: Copy

Shao, Ming lu, Yue, Xiang an, & He, Jie. (2020). Controlling gelation time of in situ polymerization of gel system through AGET ATRP principle. IRANIAN POLYMER JOURNAL (ENGLISH), 29(3), 275-286. SID. https://sid.ir/paper/1043037/en

Vancouver: Copy

Shao Ming lu, Yue Xiang an, He Jie. Controlling gelation time of in situ polymerization of gel system through AGET ATRP principle. IRANIAN POLYMER JOURNAL (ENGLISH)[Internet]. 2020;29(3):275-286. Available from: https://sid.ir/paper/1043037/en

IEEE: Copy

Ming lu Shao, Xiang an Yue, and Jie He, “Controlling gelation time of in situ polymerization of gel system through AGET ATRP principle,” IRANIAN POLYMER JOURNAL (ENGLISH), vol. 29, no. 3, pp. 275–286, 2020, [Online]. Available: https://sid.ir/paper/1043037/en

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