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High-temperature-resistant cement paste system for hot dry rock well cementation
The invention relates to a cement paste system. The cement paste system comprises a cement paste system substrate of oil well cement, a strength stabilizing material and a mineral admixture; and one or more of a filtrate reducer, a dispersant and a retarder, and water. The cement paste system provided by the invention has the advantages of good system stability, low filtration water loss and adjustable thickening time. The formed hardened set cement has strength degradation resistance at high temperature, and has a good application prospect in the field of development of hot dry rock resources in a high-temperature environment.
本发明涉及一种水泥浆体系，包括油井水泥、强度稳定料与矿物掺合料的水泥浆体系基底；以及与降滤失剂、分散剂、缓凝剂中的一种或几种和水制得。本发明的水泥浆体系，具有体系稳定性好、滤失水量低、稠化时间可调的优点。形成的硬化水泥石具有高温下抗强度衰退，在具有高温环境的干热岩资源开发领域具有良好的应用前景。
High-temperature-resistant cement paste system for hot dry rock well cementation
The invention relates to a cement paste system. The cement paste system comprises a cement paste system substrate of oil well cement, a strength stabilizing material and a mineral admixture; and one or more of a filtrate reducer, a dispersant and a retarder, and water. The cement paste system provided by the invention has the advantages of good system stability, low filtration water loss and adjustable thickening time. The formed hardened set cement has strength degradation resistance at high temperature, and has a good application prospect in the field of development of hot dry rock resources in a high-temperature environment.
本发明涉及一种水泥浆体系，包括油井水泥、强度稳定料与矿物掺合料的水泥浆体系基底；以及与降滤失剂、分散剂、缓凝剂中的一种或几种和水制得。本发明的水泥浆体系，具有体系稳定性好、滤失水量低、稠化时间可调的优点。形成的硬化水泥石具有高温下抗强度衰退，在具有高温环境的干热岩资源开发领域具有良好的应用前景。
High-temperature-resistant cement paste system for hot dry rock well cementation
一种干热岩固井用耐高温水泥浆体系
LIU RENGGUANG (author) / ZENG MIN (author) / LIU KUI (author) / LIU FEI (author) / ZHANG LINHAI (author) / LU PEIQING (author)
2022-03-11
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
| European Patent Office | 2024
| European Patent Office | 2024
| European Patent Office | 2023