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Open AccessArticle

Development of Self-Healing Cement Slurry through the Incorporation of Dual-Encapsulated Polyacrylamide for the Prevention of Water Ingress in Oil Well

1
Department of Petroleum & Energy Studies, DIT University, Dehradun 248009, India
2
Department Chemical Engineering, Indian Institute of Technology, Delhi 110016, India
3
Department of Chemistry, DIT University, Dehradun, 248009, India
4
Institute of Drilling Technology, ONGC, Dehradun 248003, India
5
Department of Chemical Engineering, Indian Institute of Technology, Roorkee 247667, India
*
Author to whom correspondence should be addressed.
Materials 2020, 13(13), 2921; https://doi.org/10.3390/ma13132921
Received: 25 May 2020 / Revised: 24 June 2020 / Accepted: 26 June 2020 / Published: 29 June 2020
(This article belongs to the Collection Concrete and Construction Materials)
In the present work, a novel cross-linked polymer was synthesized though the anionic polymerization of cyanoacrylate with moisture as an initiator, methylene-bis-acrylamide as a cross-linker, and linseed oil as a spacer. Two layers of the synthesized polymer was coated over polyacrylamide for its homogenous impregnation in Class-G cement slurry for the synthesis of cement core. Fourier Transformation Infrared spectroscopy and X-Ray diffraction spectrum of the synthesized polymer and cement core were obtained to investigate the presence of different functional groups and phases. Moreover, the morphologies of the dual-encapsulated polyacrylamide was observed through scanning electron microscopy. Furthermore, the water-absorption capacity of the synthesized dual-encapsulated polyacrylamide in normal and saline conditions were tested. A cement core impregnated with 16% of dosage of dual-encapsulated polyacrylamide possesses an effective self-healing capability during the water-flow test. Moreover, the maximum linear expansion of the cement core was observed to be 26%. Thus, the impregnation of dual-encapsulated polyacrylamide in cement slurry can exhibit a superior self-healing behavior upon water absorption in an oil well. View Full-Text
Keywords: DUAL coated Polyacrylamide (PAM); self-healing cement; water absorption; expansion; microcrack DUAL coated Polyacrylamide (PAM); self-healing cement; water absorption; expansion; microcrack
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MDPI and ACS Style

Richhariya, G.; Dora, D.; Parmar, K.; Pant, K.; Singhal, N.; Lal, K.; Kundu, P. Development of Self-Healing Cement Slurry through the Incorporation of Dual-Encapsulated Polyacrylamide for the Prevention of Water Ingress in Oil Well. Materials 2020, 13, 2921.

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