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Self-repairing agent for oil well cement as well as preparation method and application of self-repairing agent
The invention discloses a self-repairing agent for oil well cement and a preparation method and application thereof.The self-repairing agent comprises thermoplastic elastomer particles subjected to at least surface sulfonation treatment, the thermoplastic elastomer particles comprise rubber, polyolefin and inorganic filler, the weight ratio of the rubber to the polyolefin is 1: 4-4: 1, and the density of the inorganic filler is 1.5-8 g/cm < 3 >. The self-repairing agent disclosed by the invention has relatively good affinity, can be uniformly and stably dispersed in cement paste, and is convenient for engineering application.
本发明公开了油井水泥用自修复剂及其制备方法和应用,所述自修复剂包括至少表面磺化处理的热塑性弹性体颗粒,所述热塑性弹性体颗粒包括橡胶、聚烯烃和无机填料,其中,所述橡胶与所述聚烯烃的重量比为1:4‑4:1,所述无机填料的密度为1.5~8g/cm3。本发明的自修复剂具有较好的亲和性,能够均匀稳定的分散在水泥浆中,方便进行工程化应用。
Self-repairing agent for oil well cement as well as preparation method and application of self-repairing agent
The invention discloses a self-repairing agent for oil well cement and a preparation method and application thereof.The self-repairing agent comprises thermoplastic elastomer particles subjected to at least surface sulfonation treatment, the thermoplastic elastomer particles comprise rubber, polyolefin and inorganic filler, the weight ratio of the rubber to the polyolefin is 1: 4-4: 1, and the density of the inorganic filler is 1.5-8 g/cm < 3 >. The self-repairing agent disclosed by the invention has relatively good affinity, can be uniformly and stably dispersed in cement paste, and is convenient for engineering application.
本发明公开了油井水泥用自修复剂及其制备方法和应用,所述自修复剂包括至少表面磺化处理的热塑性弹性体颗粒,所述热塑性弹性体颗粒包括橡胶、聚烯烃和无机填料,其中,所述橡胶与所述聚烯烃的重量比为1:4‑4:1,所述无机填料的密度为1.5~8g/cm3。本发明的自修复剂具有较好的亲和性,能够均匀稳定的分散在水泥浆中,方便进行工程化应用。
Self-repairing agent for oil well cement as well as preparation method and application of self-repairing agent
油井水泥用自修复剂及其制备方法和应用
ZENG MIN (Autor:in) / WANG QICHUN (Autor:in) / WANG XIAOJING (Autor:in)
05.07.2024
Patent
Elektronische Ressource
Chinesisch
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