摘要
深度氧化淀粉(CH20L)作为油井水泥缓凝剂,可以有效控制水泥浆的凝固时间,能满足井温80～180℃条件下固井作业安全的需要。水泥浆稠化实验结果表明,CH20L稳定性好,无早凝、过度缓凝现象发生,加量与稠化时间呈线性关系。
As an oilwell cement retarder, highly-oxidized starch Ch20L can effectively control the setting time of slurries, meet 80~180℃ BHT for cementing safety. The results of slurry thickening experiments show CH20L stability is better, no early setting nor over retarding, and the volume and thickening time appearing linear relationship.
出处
《石油钻探技术》
EI
CAS
北大核心
2000年第1期37-39,共3页
Petroleum Drilling Techniques
