Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of composite early strength agent and application of composite early strength agent in deepwater well cementation
The invention discloses an early strength agent which comprises the following components in parts by weight: 5-8 parts of calcium salt, 1-4 parts of aluminum salt, 3-5 parts of sulfate, 4-8 parts of lithium salt, 12-15 parts of a dispersing agent, 0.5-6 parts of a surfactant and 10-20 parts of alcohols. The invention also discloses a preparation method of the early strength agent and cement paste containing the early strength agent. The early strength agent disclosed by the invention can effectively promote the hydration rate of cement paste under a low-temperature condition, is obvious in early strength effect, and can effectively shorten the thickening time under an ultralow-temperature condition, shorten the cementing waiting time and reduce the development cost of an oil and gas well.
本发明公开了一种早强剂，包括如下重量份数的各组分：钙盐5～8份，铝盐1～4份，硫酸盐3～5份，锂盐4～8份，分散剂12～15份，表面活性剂0.5～6份，醇类10～20份。本发明还公开了该早强剂的制备方法以及包括该早强剂的水泥浆。本发明的早强剂在低温条件下能有效促进水泥浆水化速率、早强效果明显，在超低温条件下能有效缩短稠化时间，缩短固井侯凝时间，降低油气井开发成本。
Preparation method of composite early strength agent and application of composite early strength agent in deepwater well cementation
The invention discloses an early strength agent which comprises the following components in parts by weight: 5-8 parts of calcium salt, 1-4 parts of aluminum salt, 3-5 parts of sulfate, 4-8 parts of lithium salt, 12-15 parts of a dispersing agent, 0.5-6 parts of a surfactant and 10-20 parts of alcohols. The invention also discloses a preparation method of the early strength agent and cement paste containing the early strength agent. The early strength agent disclosed by the invention can effectively promote the hydration rate of cement paste under a low-temperature condition, is obvious in early strength effect, and can effectively shorten the thickening time under an ultralow-temperature condition, shorten the cementing waiting time and reduce the development cost of an oil and gas well.
本发明公开了一种早强剂，包括如下重量份数的各组分：钙盐5～8份，铝盐1～4份，硫酸盐3～5份，锂盐4～8份，分散剂12～15份，表面活性剂0.5～6份，醇类10～20份。本发明还公开了该早强剂的制备方法以及包括该早强剂的水泥浆。本发明的早强剂在低温条件下能有效促进水泥浆水化速率、早强效果明显，在超低温条件下能有效缩短稠化时间，缩短固井侯凝时间，降低油气井开发成本。
Preparation method of composite early strength agent and application of composite early strength agent in deepwater well cementation
一种复合早强剂的制备方法及其在深水固井中的应用
HUANG FENG (Autor:in) / ZHANG HAO (Autor:in) / WEN DAYANG (Autor:in) / FENG YINGTAO (Autor:in) / CHEN YU (Autor:in) / XIAO WEI (Autor:in) / FANG ENLOU (Autor:in) / YU BIN (Autor:in) / WANG LEI (Autor:in) / GONG YONG (Autor:in)
23.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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