Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lightweight toughened well cementing material and preparation method thereof
The invention provides a lightweight toughened well cementation material and a preparation method thereof, and belongs to the technical field of well cementation materials. The lightweight toughened well cementing material provided by the invention is prepared from the following components in parts by mass: 30-40 parts of G-grade oil well cement, 20-35 parts of vacuum glass beads, 8-15 parts of silica fume, 4-8 parts of plant fibers, 2-5 parts of rubber powder, 2.5-5 parts of an early strength agent, 3-5 parts of a fluid loss agent, 0.1-0.4 part of a retarder and 0.1-0.3 part of a stabilizer. The water cement ratio of the lightweight toughened well cementing material is 0.6-0.8. According to the prepared lightweight toughened well cementing material, the initial setting strength development speed of set cement is increased, the early strength of the set cement can reach 7.0 MPa or above (45 DEG C/48 h), the toughness and impact resistance of the set cement are improved, and the elastic modulus of the set cement is small and only ranges from 4.5 GPa to 5.5 GPa.
本发明提供了一种轻质增韧固井材料及其制备方法，属于固井材料技术领域。本发明提供的轻质增韧固井材料由包含以下质量份数的组分组成：G级油井水泥30～40份、真空玻璃微珠20～35份、硅灰8～15份、植物纤维4～8份、橡胶粉2～5份、早强剂2.5～5份、降失水剂3～5份、缓凝剂0.1～0.4份、稳定剂0.1～0.3份。所述轻质增韧固井材料的水灰比为0.6～0.8。本发明制备的轻质增韧固井材料提高了水泥石的初凝强度发展速度，使其早期强度可达7.0MPa以上(45℃/48h)，提高了水泥石的韧性及抗冲击性能，水泥石弹性模量小，弹性模量仅在4.5～5.5GPa。
Lightweight toughened well cementing material and preparation method thereof
The invention provides a lightweight toughened well cementation material and a preparation method thereof, and belongs to the technical field of well cementation materials. The lightweight toughened well cementing material provided by the invention is prepared from the following components in parts by mass: 30-40 parts of G-grade oil well cement, 20-35 parts of vacuum glass beads, 8-15 parts of silica fume, 4-8 parts of plant fibers, 2-5 parts of rubber powder, 2.5-5 parts of an early strength agent, 3-5 parts of a fluid loss agent, 0.1-0.4 part of a retarder and 0.1-0.3 part of a stabilizer. The water cement ratio of the lightweight toughened well cementing material is 0.6-0.8. According to the prepared lightweight toughened well cementing material, the initial setting strength development speed of set cement is increased, the early strength of the set cement can reach 7.0 MPa or above (45 DEG C/48 h), the toughness and impact resistance of the set cement are improved, and the elastic modulus of the set cement is small and only ranges from 4.5 GPa to 5.5 GPa.
本发明提供了一种轻质增韧固井材料及其制备方法，属于固井材料技术领域。本发明提供的轻质增韧固井材料由包含以下质量份数的组分组成：G级油井水泥30～40份、真空玻璃微珠20～35份、硅灰8～15份、植物纤维4～8份、橡胶粉2～5份、早强剂2.5～5份、降失水剂3～5份、缓凝剂0.1～0.4份、稳定剂0.1～0.3份。所述轻质增韧固井材料的水灰比为0.6～0.8。本发明制备的轻质增韧固井材料提高了水泥石的初凝强度发展速度，使其早期强度可达7.0MPa以上(45℃/48h)，提高了水泥石的韧性及抗冲击性能，水泥石弹性模量小，弹性模量仅在4.5～5.5GPa。
Lightweight toughened well cementing material and preparation method thereof
一种轻质增韧固井材料及其制备方法
LI PANPAN (Autor:in) / LI MINGZE (Autor:in) / LI RONG (Autor:in) / GUO WEI (Autor:in) / BAI YONGTAI (Autor:in) / XU HUIHUI (Autor:in) / HU YUANYUAN (Autor:in) / YAO LIANG (Autor:in)
31.03.2023
Patent
Elektronische Ressource
Chinesisch
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