Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cement additive, cement composition and cement paste
The invention relates to a cement additive, a cement composition and cement paste, and belongs to the technical field of oil well cementation. The cement additive mainly comprises silicon powder, micro silicon, an elastic-plastic toughening agent, an expanding agent, an anti-channeling agent and a drag reducer. The mass ratio of the silicon powder to the micro silicon to the elastic-plastic toughening agent to the expanding agent to the anti-channeling agent to the drag reducer is (32-42): (1-3): (2.2-2.8): (0.5-2): (1-3): (0.3-0.7). When the cement additive is used for preparing set cement, the cement additive has the advantages of low elastic modulus and high breaking strength, and can meet the requirements of shale gas producing layer well cementation.
本发明涉及一种水泥添加剂、水泥组合物和水泥浆，属于油井固井技术领域。本发明的水泥添加剂主要由硅粉、微硅、弹塑增韧剂、膨胀剂、防窜剂和减阻剂组成；所述硅粉、微硅、弹塑增韧剂、膨胀剂、防窜剂和减阻剂的质量比为32～42:1～3:2.2～2.8:0.5～2:1～3:0.3～0.7。本发明的水泥添加剂，用于制备水泥石时，具有低弹性模量和高抗折强度的优点，可满足页岩气产层固井的要求。
Cement additive, cement composition and cement paste
The invention relates to a cement additive, a cement composition and cement paste, and belongs to the technical field of oil well cementation. The cement additive mainly comprises silicon powder, micro silicon, an elastic-plastic toughening agent, an expanding agent, an anti-channeling agent and a drag reducer. The mass ratio of the silicon powder to the micro silicon to the elastic-plastic toughening agent to the expanding agent to the anti-channeling agent to the drag reducer is (32-42): (1-3): (2.2-2.8): (0.5-2): (1-3): (0.3-0.7). When the cement additive is used for preparing set cement, the cement additive has the advantages of low elastic modulus and high breaking strength, and can meet the requirements of shale gas producing layer well cementation.
本发明涉及一种水泥添加剂、水泥组合物和水泥浆，属于油井固井技术领域。本发明的水泥添加剂主要由硅粉、微硅、弹塑增韧剂、膨胀剂、防窜剂和减阻剂组成；所述硅粉、微硅、弹塑增韧剂、膨胀剂、防窜剂和减阻剂的质量比为32～42:1～3:2.2～2.8:0.5～2:1～3:0.3～0.7。本发明的水泥添加剂，用于制备水泥石时，具有低弹性模量和高抗折强度的优点，可满足页岩气产层固井的要求。
Cement additive, cement composition and cement paste
一种水泥添加剂、水泥组合物和水泥浆
YANG WEI (Autor:in) / JIA YONGJIANG (Autor:in) / LI ZHENGGUO (Autor:in) / SUN YONGGANG (Autor:in) / ZHOU DONG (Autor:in) / LIU LINGRONG (Autor:in) / ZHANG XINGQUAN (Autor:in) / LI KUN (Autor:in) / CAO XIUYI (Autor:in) / JIANG ZIFENG (Autor:in)
28.04.2023
Patent
Elektronische Ressource
Chinesisch
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