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Well cementation cement slurry system capable of resisting ultrahigh temperature of 240 DEG C
The invention discloses a well cementation cement slurry system capable of resisting ultrahigh temperature of 240 DEG C. The cement slurry system is prepared from the following components in percentage by mass: 100 parts of oil well G-grade cement, 30-50 parts of a strength stabilizer, 5-15 parts of a strength recession resisting agent, 0.3-1 part of a lattice growth inhibitor, 1-3 parts of a structure stabilizer, 0.5-5 parts of a suspension stabilizer, 0.5-5 parts of a retarder, 4-10 parts of a fluid loss agent, 1-3 parts of a drag reducer, 0.2-1 part of a defoaming agent and 38-60 parts of water. The ultrahigh-temperature well cementation cement paste system can resist the temperature of 240 DEG C, the cement paste fluidity is good, the thickening time is adjustable, set cement has a compact microstructure and good compressive strength performance, and the structural durability and safety of ultrahigh-temperature deep well and ultra-deep well cementation engineering can be effectively guaranteed.
本发明公开了一种抗240℃超高温固井水泥浆体系，所述的水泥浆体系包括按质量百分比的组分：油井G级水泥100份、强度稳定剂30～50份、抗强度衰退剂5～15份、晶格生长抑制剂0.3～1份、结构稳定剂1～3份、悬浮稳定剂0.5～5份、缓凝剂0.5～5份、降失水剂4～10份、减阻剂1～3份、消泡剂0.2～1份和水38～60份。本发明的超高温固井水泥浆体系耐温达到240℃，水泥浆流动性好，稠化时间可调，水泥石具有致密的微观结构，抗压强度性能良好，可有效保证超高温深井超深井固井工程的结构耐久性和安全性。
Well cementation cement slurry system capable of resisting ultrahigh temperature of 240 DEG C
The invention discloses a well cementation cement slurry system capable of resisting ultrahigh temperature of 240 DEG C. The cement slurry system is prepared from the following components in percentage by mass: 100 parts of oil well G-grade cement, 30-50 parts of a strength stabilizer, 5-15 parts of a strength recession resisting agent, 0.3-1 part of a lattice growth inhibitor, 1-3 parts of a structure stabilizer, 0.5-5 parts of a suspension stabilizer, 0.5-5 parts of a retarder, 4-10 parts of a fluid loss agent, 1-3 parts of a drag reducer, 0.2-1 part of a defoaming agent and 38-60 parts of water. The ultrahigh-temperature well cementation cement paste system can resist the temperature of 240 DEG C, the cement paste fluidity is good, the thickening time is adjustable, set cement has a compact microstructure and good compressive strength performance, and the structural durability and safety of ultrahigh-temperature deep well and ultra-deep well cementation engineering can be effectively guaranteed.
本发明公开了一种抗240℃超高温固井水泥浆体系，所述的水泥浆体系包括按质量百分比的组分：油井G级水泥100份、强度稳定剂30～50份、抗强度衰退剂5～15份、晶格生长抑制剂0.3～1份、结构稳定剂1～3份、悬浮稳定剂0.5～5份、缓凝剂0.5～5份、降失水剂4～10份、减阻剂1～3份、消泡剂0.2～1份和水38～60份。本发明的超高温固井水泥浆体系耐温达到240℃，水泥浆流动性好，稠化时间可调，水泥石具有致密的微观结构，抗压强度性能良好，可有效保证超高温深井超深井固井工程的结构耐久性和安全性。
Well cementation cement slurry system capable of resisting ultrahigh temperature of 240 DEG C
一种抗240℃超高温固井水泥浆体系
WANG CHENGWEN (author) / WANG HONGTAO (author) / LIU JINGPING (author) / ZHAO FENG (author) / GUO XINYANG (author)
2024-11-15
Patent
Electronic Resource
Chinese
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