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Low-density cement paste
The invention discloses a low-density cement paste, and belongs to the technical field of building materials. The low-density cement paste comprises the following components in parts by weight: 10-15 parts of class-G oil well cement, 2-6 parts of hollow borosilicate glass beads, 2-4 parts of zinc oxide, 1-2 parts of a silane coupling agent, 0.5-0.8 part of triethanolamine, 0.5-0.8 part of a fluid loss agent, 1-5 parts of an early strength agent, 10-15 parts of coke, 0.4-1.2 parts of a dispersing agent and 0.2-0.7 part of an antifreezing agent. The low-density cement paste has good weatherability, high hydration capability and high hydration speed and improves the early strength of a cement stone; the cement system has good suspension stability, stability, compressive strength and high temperature resistance, and is especially suitable for reinforcing oil and gas wells.
Low-density cement paste
The invention discloses a low-density cement paste, and belongs to the technical field of building materials. The low-density cement paste comprises the following components in parts by weight: 10-15 parts of class-G oil well cement, 2-6 parts of hollow borosilicate glass beads, 2-4 parts of zinc oxide, 1-2 parts of a silane coupling agent, 0.5-0.8 part of triethanolamine, 0.5-0.8 part of a fluid loss agent, 1-5 parts of an early strength agent, 10-15 parts of coke, 0.4-1.2 parts of a dispersing agent and 0.2-0.7 part of an antifreezing agent. The low-density cement paste has good weatherability, high hydration capability and high hydration speed and improves the early strength of a cement stone; the cement system has good suspension stability, stability, compressive strength and high temperature resistance, and is especially suitable for reinforcing oil and gas wells.
Low-density cement paste
FAN KAIJUAN (author) / LI WENYONG (author) / LI CHANGMIN (author)
2015-04-29
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2022
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