Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel high-temperature-resistant well cementing cement system based on slag powder and preparation method of novel high-temperature-resistant well cementing cement system
The invention belongs to the technical field of well cementation engineering, and discloses a novel high-temperature-resistant well cementation cement system based on slag powder and a preparation method of the novel high-temperature-resistant well cementation cement system. The novel high-temperature-resistant well cementation cement system based on the slag powder is composed of a solid component and a liquid component, and the weight ratio of the solid component to the liquid component is 1:(0.15-0.95); the solid component comprises the following components in percentage by weight: 21-70% of cement, 5-60% of silica sand and 5-60% of slag powder, and the weight ratio of the silica sand to the slag powder is (0.11-11):1; and the liquid component contains water and an additive. Under the curing conditions of 200 DEG C and 50 MPa, the physical and mechanical properties of the cement in 2 days and 30 days are respectively tested, and the result shows that the high-temperature-resistant well cementation cement system is stable in performance, can solve the problems of strength decline and poor high-temperature resistance of well cementation cement stone in an ultrahigh-temperature environment in the prior art, and meets the long-term packing requirement of well cementation.
本发明属于固井工程技术领域，公开了一种基于矿渣粉的新型耐高温固井水泥体系及其制备方法，基于矿渣粉的新型耐高温固井水泥体系由固体组分和液体组分组成，所述固体组分和液体组分的重量比为1:(0.15‑0.95)；其中，所述固体组分含有21‑70重量％的水泥、5‑60重量％的硅砂和5‑60重量％的矿渣粉，所述硅砂和所述矿渣粉的重量比为(0.11‑11):1；所述液体组分含有水和添加剂。在200℃，50MPa养护条件下，分别测试其2天和30天的物理力学性能，结果表明，本发明的耐高温固井水泥体系性能稳定，可以解决现有技术存在的超高温环境固井水泥石强度衰退、耐高温性能差的问题，满足固井长期封隔要求。
Novel high-temperature-resistant well cementing cement system based on slag powder and preparation method of novel high-temperature-resistant well cementing cement system
The invention belongs to the technical field of well cementation engineering, and discloses a novel high-temperature-resistant well cementation cement system based on slag powder and a preparation method of the novel high-temperature-resistant well cementation cement system. The novel high-temperature-resistant well cementation cement system based on the slag powder is composed of a solid component and a liquid component, and the weight ratio of the solid component to the liquid component is 1:(0.15-0.95); the solid component comprises the following components in percentage by weight: 21-70% of cement, 5-60% of silica sand and 5-60% of slag powder, and the weight ratio of the silica sand to the slag powder is (0.11-11):1; and the liquid component contains water and an additive. Under the curing conditions of 200 DEG C and 50 MPa, the physical and mechanical properties of the cement in 2 days and 30 days are respectively tested, and the result shows that the high-temperature-resistant well cementation cement system is stable in performance, can solve the problems of strength decline and poor high-temperature resistance of well cementation cement stone in an ultrahigh-temperature environment in the prior art, and meets the long-term packing requirement of well cementation.
本发明属于固井工程技术领域，公开了一种基于矿渣粉的新型耐高温固井水泥体系及其制备方法，基于矿渣粉的新型耐高温固井水泥体系由固体组分和液体组分组成，所述固体组分和液体组分的重量比为1:(0.15‑0.95)；其中，所述固体组分含有21‑70重量％的水泥、5‑60重量％的硅砂和5‑60重量％的矿渣粉，所述硅砂和所述矿渣粉的重量比为(0.11‑11):1；所述液体组分含有水和添加剂。在200℃，50MPa养护条件下，分别测试其2天和30天的物理力学性能，结果表明，本发明的耐高温固井水泥体系性能稳定，可以解决现有技术存在的超高温环境固井水泥石强度衰退、耐高温性能差的问题，满足固井长期封隔要求。
Novel high-temperature-resistant well cementing cement system based on slag powder and preparation method of novel high-temperature-resistant well cementing cement system
一种基于矿渣粉的新型耐高温固井水泥体系及其制备方法
CHENG GUODONG (Autor:in) / PANG XUEYU (Autor:in) / LI HAILONG (Autor:in) / QIN JIANKUN (Autor:in)
10.12.2021
Patent
Elektronische Ressource
Chinesisch
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