SELF-HEALING OF CEMENT SLURRY FOR OIL WELLS CONTAINING CRYSTALLINE ADMIXTURE: EARLY RESULTS

Author(s): Aline de Souza Oliveira (1), Romildo Dias Toledo Filho (1), Eduardo de Moraes Rego Fairbairn (1), Otávio da Fonseca Martins Gomes (2) (3)
Paper category: Proceedings
Book title: SynerCrete’18 International Conference on Interdisciplinary Approaches for Cement-based Materials and Structural Concrete
Editor(s): Miguel Azenha, Dirk Schlicke, Farid Benboudjema, Agnieszka Jędrzejewska
ISBN: 978-2-35158-202-2
e-ISBN: 978-2-35158-203-9
Publisher: RILEM Publications SARL
Publication year: 2018
Pages: 1109-1114
Total Pages: 6
Language : English

Abstract: In this paper we present the early results of the self-healing analysis of an oil well cement slurry containing 1% by weight of cement of crystalline admixture. The specimens cured in a bath at 60°C were pre-cracked at 7 days by splitting test until crack width of 200 μm. The healing process lasted 66 days in a 60°C water bath to reproduce pre-salt temperature conditions. The effectiveness of the healing process was verified by the mechanical recovery of the specimens after reloading. The analysis indicated that self-healing can be useful to improve the performance of the cement sheaths in oil wells.

Online publication : 2018
Publication type : full_text
Public price (Euros) : 0.00