Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Self-repairing material for oil and gas well cementation and preparation method
The invention discloses a self-repairing material for oil and gas well cementation and a preparation method. The self-repairing material is prepared from the following raw materials: 100 parts by weight of polyisoprene; 0.5 to 100 parts by weight of a precursor; 1-50 parts by weight of a coupling agent; 0.5 to 100 parts by weight of water; 100 to 1000 parts by weight of a solvent; and 0.1-0.5 partby weight of a catalyst. A nano SiO2 shell layer is generated on the surface of the polyisoprene by a sol-gel method; the coupling agent is introduced so that the polyisoprene and the nano SiO2 shelllayer are effectively linked, and the mechanical property and the heat resistance of the whole core-shell structure material are improved, so that the compatibility of the modified self-repairing nano composite material and a cement matrix is improved, and the modified self-repairing nano composite material has better comprehensive mechanical property and heat resistance in the cement matrix.
本发明公开了一种油气井固井采用的自修复材料及制备方法。所述自修复材料是由包括以下组分的原料制备而得：聚异戊二烯100重量份；前驱体0.5‑100重量份；偶联剂1‑50重量份；水0.5‑100重量份；溶剂100‑1000重量份；催化剂0.1‑0.5重量份。本发明通过溶胶凝胶法在聚异戊二烯表面生成纳米SiO壳层，并通过引入偶联剂，有效链接聚异戊二烯与纳米SiO壳层，提高整个核壳结构材料力学性能及耐热性能，从而提高改性自修复纳米复合材料与水泥基体相容性，使之在水泥石基体中表现出更好的综合力学性能及耐热性能。
Self-repairing material for oil and gas well cementation and preparation method
The invention discloses a self-repairing material for oil and gas well cementation and a preparation method. The self-repairing material is prepared from the following raw materials: 100 parts by weight of polyisoprene; 0.5 to 100 parts by weight of a precursor; 1-50 parts by weight of a coupling agent; 0.5 to 100 parts by weight of water; 100 to 1000 parts by weight of a solvent; and 0.1-0.5 partby weight of a catalyst. A nano SiO2 shell layer is generated on the surface of the polyisoprene by a sol-gel method; the coupling agent is introduced so that the polyisoprene and the nano SiO2 shelllayer are effectively linked, and the mechanical property and the heat resistance of the whole core-shell structure material are improved, so that the compatibility of the modified self-repairing nano composite material and a cement matrix is improved, and the modified self-repairing nano composite material has better comprehensive mechanical property and heat resistance in the cement matrix.
本发明公开了一种油气井固井采用的自修复材料及制备方法。所述自修复材料是由包括以下组分的原料制备而得：聚异戊二烯100重量份；前驱体0.5‑100重量份；偶联剂1‑50重量份；水0.5‑100重量份；溶剂100‑1000重量份；催化剂0.1‑0.5重量份。本发明通过溶胶凝胶法在聚异戊二烯表面生成纳米SiO壳层，并通过引入偶联剂，有效链接聚异戊二烯与纳米SiO壳层，提高整个核壳结构材料力学性能及耐热性能，从而提高改性自修复纳米复合材料与水泥基体相容性，使之在水泥石基体中表现出更好的综合力学性能及耐热性能。
Self-repairing material for oil and gas well cementation and preparation method
一种油气井固井采用的自修复材料及制备方法
DING SHIDONG (Autor:in) / TAO QIAN (Autor:in) / ZENG MIN (Autor:in) / WANG XIAOJING (Autor:in) / LIU JIAN (Autor:in)
21.04.2020
Patent
Elektronische Ressource
Chinesisch
Self-repairing material for oil-gas well cementation and preparation method
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