吉林大学学报(地球科学版) ›› 2021, Vol. 51 ›› Issue (3): 815-824.doi: 10.13278/j.cnki.jjuese.20190319
陈晨1,2, 张颖1,2, 朱江3, 朱颖1,2, 翟梁皓1,2, 沈国军1,2, 潘栋彬1,2
Chen Chen1,2, Zhang Ying1,2, Zhu Jiang3, Zhu Ying1,2, Zhai Lianghao1,2, Shen Guojun1,2, Pan Dongbin1,2
摘要: 为提高油页岩原位转化加热效率、减少油气污染,采用注浆技术对油页岩开采区进行封闭止水。基于扶余油页岩开采区地质条件,对优化封闭浆液配方与封闭效果进行实验研究。首先基于正交试验,获得了不同指标下的优化配方,进而通过综合分析法,选出符合此封闭区要求的优化配方;为了验证优化浆液的封闭效果,对比分析了浆液充填前后油页岩试样渗透率的变化。结果表明:浆液优化配方为水灰质量比0.85,w(钠基膨润土)4.0%、w(微硅粉)6.0%、w(聚羧酸减水剂)0.5%;当围压为扶余油页岩开采区地应力时,充填浆液试样的渗透率均约为0.1×10-3 μm2,远低于未充填的试样,优化浆液封堵试样裂缝效果较好。
中图分类号:
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