Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-density cement paste for well cementation operation, and cement composition for well cementation operation
The invention relates to low-density cement paste for well cementation operation, and a cement composition for well cementation operation, and belongs to the technical field of oil well drilling engineering. The low-density cement paste for well cementation operation comprises water and the following components in parts by weight: 70-100 parts of oil well cement, 0-30 parts of superfine cement, 35-80 parts of a lightening material and 15-20 parts of micro-silicon, wherein the lightening material comprises at least one of floating beads and glass micro-beads. According to the invention, the cement paste is good in performance of each component material and moderate in addition proportion, the density of the cement paste prepared from various components can reach 1.15-1.25 g/cm<3>, and the cement paste is high in stability, good in fluidity and high in strength, so that the risk of well cementation leakage can be reduced, and the well cementation quality and the displacement efficiency are improved.
本发明涉及一种固井作业用低密度水泥浆和固井作业用水泥组合物，属于油井钻井工程技术领域。本发明的固井作业用低密度水泥浆，包括水和以下重量份数的组分：油井水泥70～100份、超细水泥0～30份、减轻材料35～80份、微硅15～20份；所述减轻材料包括漂珠、玻璃微珠中的至少一种。该水泥浆的各组分材料性能好、添加比例适中，通过各组分材料制得的水泥浆密度可达到1.15～1.25g/cm，且水泥浆的稳定性高、流动性好、强度高，进而可降低固井漏失风险，提高固井质量及顶替效率。
Low-density cement paste for well cementation operation, and cement composition for well cementation operation
The invention relates to low-density cement paste for well cementation operation, and a cement composition for well cementation operation, and belongs to the technical field of oil well drilling engineering. The low-density cement paste for well cementation operation comprises water and the following components in parts by weight: 70-100 parts of oil well cement, 0-30 parts of superfine cement, 35-80 parts of a lightening material and 15-20 parts of micro-silicon, wherein the lightening material comprises at least one of floating beads and glass micro-beads. According to the invention, the cement paste is good in performance of each component material and moderate in addition proportion, the density of the cement paste prepared from various components can reach 1.15-1.25 g/cm<3>, and the cement paste is high in stability, good in fluidity and high in strength, so that the risk of well cementation leakage can be reduced, and the well cementation quality and the displacement efficiency are improved.
本发明涉及一种固井作业用低密度水泥浆和固井作业用水泥组合物，属于油井钻井工程技术领域。本发明的固井作业用低密度水泥浆，包括水和以下重量份数的组分：油井水泥70～100份、超细水泥0～30份、减轻材料35～80份、微硅15～20份；所述减轻材料包括漂珠、玻璃微珠中的至少一种。该水泥浆的各组分材料性能好、添加比例适中，通过各组分材料制得的水泥浆密度可达到1.15～1.25g/cm，且水泥浆的稳定性高、流动性好、强度高，进而可降低固井漏失风险，提高固井质量及顶替效率。
Low-density cement paste for well cementation operation, and cement composition for well cementation operation
一种固井作业用低密度水泥浆和固井作业用水泥组合物
YANG WEI (Autor:in) / ZHOU DONG (Autor:in) / WEI ZHAO (Autor:in) / YANG WENBO (Autor:in) / CHANG YUNCHAO (Autor:in) / YANG LI (Autor:in)
17.04.2020
Patent
Elektronische Ressource
Chinesisch
Well cementation cement slurry composition and well cementation cement slurry
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2024