化工进展 ›› 2020, Vol. 39 ›› Issue (S2): 135-141.DOI: 10.16085/j.issn.1000-6613.2020-0752
收稿日期:
2020-05-06
出版日期:
2020-11-20
发布日期:
2020-11-17
通讯作者:
裴海华
作者简介:
裴海华(1984—),男,博士,副教授,主要从事稠油油藏提高采收率技术。E-mail:基金资助:
Haihua PEI(), Dongxin LIU, Guicai ZHANG, Jingling SHAN, Ping JIANG
Received:
2020-05-06
Online:
2020-11-20
Published:
2020-11-17
Contact:
Haihua PEI
摘要:
针对塔河油田12区超稠油的性质,进行了超稠油掺苯乙烯焦油降黏实验及黏度预测模型的研究。采用苯乙烯焦油和柴油对超稠油进行不同掺稀比的降黏实验,用非线性宾汉模型进行流变数据拟合,并将实验测得的混合油黏度与预测模型进行匹配。结果表明:超稠油掺混20%苯乙烯焦油的降黏效果与超稠油掺混10%柴油的降黏效果相同,降黏率大于97%,掺稀比越大、温度越高,混合油黏度越低。混合油的流变模型符合非线性宾汉模型,呈现出一定的剪切稀释性。当超稠油与苯乙烯焦油的黏度比低于1.76×104时,混合油黏度可采用Cragoe修正模型和双对数修正模型Ⅱ进行计算,双对数修正模型Ⅱ对苯乙烯焦油与超稠油混合油的黏度预测效果最好,平均相对偏差为9.4%。
中图分类号:
裴海华, 刘冬鑫, 张贵才, 单景玲, 蒋平. 塔河超稠油掺苯乙烯焦油降黏实验及黏度预测模型[J]. 化工进展, 2020, 39(S2): 135-141.
Haihua PEI, Dongxin LIU, Guicai ZHANG, Jingling SHAN, Ping JIANG. Viscosity-reducing experiment and viscosity-predicting model of Tahe super heavy oil blended with styrene tar[J]. Chemical Industry and Engineering Progress, 2020, 39(S2): 135-141.
类型 | 黏度/mPa·s | |||||
---|---|---|---|---|---|---|
50℃ | 60℃ | 70℃ | 80℃ | 90℃ | ||
苯乙烯焦油 | 22.7 | 18.3 | 13.6 | 11.7 | 10.9 | |
超稠油 | 400000 | 224000 | 135000 | 64900 | 29200 |
表1 油样的黏温数据
类型 | 黏度/mPa·s | |||||
---|---|---|---|---|---|---|
50℃ | 60℃ | 70℃ | 80℃ | 90℃ | ||
苯乙烯焦油 | 22.7 | 18.3 | 13.6 | 11.7 | 10.9 | |
超稠油 | 400000 | 224000 | 135000 | 64900 | 29200 |
掺稀比 | 降黏率/% | |||||
---|---|---|---|---|---|---|
50℃ | 60℃ | 70℃ | 80℃ | 90℃ | ||
0.1 | 87.50 | 88.17 | 88.09 | 84.71 | 75.23 | |
0.2 | 97.53 | 97.39 | 97.14 | 96.10 | 93.11 | |
0.3 | 99.36 | 99.24 | 99.10 | 98.52 | 97.18 | |
0.4 | 99.50 | 99.54 | 99.55 | 99.37 | 98.87 | |
0.5 | 99.88 | 99.87 | 99.86 | 99.80 | 99.64 | |
0.6 | 99.95 | 99.94 | 99.93 | 99.87 | 99.73 |
表2 苯乙烯焦油的降黏效果
掺稀比 | 降黏率/% | |||||
---|---|---|---|---|---|---|
50℃ | 60℃ | 70℃ | 80℃ | 90℃ | ||
0.1 | 87.50 | 88.17 | 88.09 | 84.71 | 75.23 | |
0.2 | 97.53 | 97.39 | 97.14 | 96.10 | 93.11 | |
0.3 | 99.36 | 99.24 | 99.10 | 98.52 | 97.18 | |
0.4 | 99.50 | 99.54 | 99.55 | 99.37 | 98.87 | |
0.5 | 99.88 | 99.87 | 99.86 | 99.80 | 99.64 | |
0.6 | 99.95 | 99.94 | 99.93 | 99.87 | 99.73 |
掺稀比 | 降黏率/% | |||||
---|---|---|---|---|---|---|
50℃ | 60℃ | 70℃ | 80℃ | 90℃ | ||
0.1 | 97.85 | 97.45 | 96.44 | 94.27 | 88.66 | |
0.2 | 99.33 | 99.22 | 99.10 | 98.28 | 96.31 | |
0.3 | 99.75 | 99.66 | 99.53 | 99.13 | 98.18 | |
0.4 | 99.90 | 99.89 | 99.86 | 99.75 | 99.45 | |
0.5 | 99.96 | 99.95 | 99.92 | 99.85 | 99.66 | |
0.6 | 99.98 | 99.98 | 99.97 | 99.94 | 99.87 |
表3 柴油的降黏效果
掺稀比 | 降黏率/% | |||||
---|---|---|---|---|---|---|
50℃ | 60℃ | 70℃ | 80℃ | 90℃ | ||
0.1 | 97.85 | 97.45 | 96.44 | 94.27 | 88.66 | |
0.2 | 99.33 | 99.22 | 99.10 | 98.28 | 96.31 | |
0.3 | 99.75 | 99.66 | 99.53 | 99.13 | 98.18 | |
0.4 | 99.90 | 99.89 | 99.86 | 99.75 | 99.45 | |
0.5 | 99.96 | 99.95 | 99.92 | 99.85 | 99.66 | |
0.6 | 99.98 | 99.98 | 99.97 | 99.94 | 99.87 |
温度/℃ | 掺稀比 | ||
---|---|---|---|
1∶1 | 1∶1.5 | 1∶2 | |
40 | τ=9.9707γ0.8211+9.2235 | τ=23.8670γ0.8116+206.6625 | τ=25.1763γ0.8513+202.1144 |
50 | τ=4.8570γ0.9110+9.9033 | τ=13.8609γ0.8284+191.9315 | τ=28.5335γ0.7260+153.2336 |
60 | τ=3.6277γ0.8648+7.9408 | τ=12.0176γ0.7903+152.4208 | τ=22.4544γ0.7041+155.4911 |
70 | τ=2.7274γ0.8502+6.8744 | τ=9.9772γ0.7665+116.6066 | τ=16.0251γ0.7161+160.1719 |
表4 混合油流变曲线拟合结果
温度/℃ | 掺稀比 | ||
---|---|---|---|
1∶1 | 1∶1.5 | 1∶2 | |
40 | τ=9.9707γ0.8211+9.2235 | τ=23.8670γ0.8116+206.6625 | τ=25.1763γ0.8513+202.1144 |
50 | τ=4.8570γ0.9110+9.9033 | τ=13.8609γ0.8284+191.9315 | τ=28.5335γ0.7260+153.2336 |
60 | τ=3.6277γ0.8648+7.9408 | τ=12.0176γ0.7903+152.4208 | τ=22.4544γ0.7041+155.4911 |
70 | τ=2.7274γ0.8502+6.8744 | τ=9.9772γ0.7665+116.6066 | τ=16.0251γ0.7161+160.1719 |
测试温度 /℃ | 掺稀比 | 相对偏差/% | ||||
---|---|---|---|---|---|---|
Cragoe | Cragoe修正 | 双对数 | 双对数修正Ⅱ | 双对数修正Ⅲ | ||
40 | 0.1 | 7.4 | 9.5 | 3.5 | 1.7 | 1.4 |
40 | 0.2 | 33.3 | 31.3 | 34.7 | 37.1 | 37.1 |
40 | 0.3 | 42.0 | 40.0 | 41.1 | 43.9 | 43.9 |
40 | 0.4 | 14.6 | 11.7 | 9.8 | 14.6 | 14.6 |
40 | 0.5 | 3.0 | — | 5.6 | — | — |
40 | 0.6 | 0.9 | 3.4 | 11.6 | 6.1 | 6.1 |
50 | 0.1 | 30.7 | 13.6 | 31.2 | 11.0 | 25.5 |
50 | 0.2 | 41.7 | 18.8 | 40.2 | 19.6 | 31.1 |
50 | 0.3 | 47.8 | 24.1 | 44.1 | 25.5 | 32.7 |
50 | 0.4 | 41.5 | 15.3 | 34.9 | 16.2 | 20.1 |
50 | 0.5 | 28.8 | — | 18.6 | — | — |
50 | 0.6 | 22.6 | 3.4 | 10.7 | 4.3 | 7.8 |
60 | 0.1 | 39.2 | 17.4 | 38.0 | 9.5 | 30.3 |
60 | 0.2 | 46.0 | 14.6 | 42.5 | 11.4 | 29.1 |
60 | 0.3 | 48.1 | 12.9 | 41.9 | 11.7 | 23.9 |
60 | 0.4 | 39.6 | 1.1 | 29.7 | 1.4 | 5.2 |
60 | 0.5 | 37.6 | — | 25.8 | — | — |
60 | 0.6 | 33.9 | 1.1 | 21.2 | 1.3 | 3.5 |
70 | 0.1 | 40.7 | 16.7 | 37.6 | 8.9 | 29.8 |
70 | 0.2 | 44.5 | 7.8 | 37.8 | 4.4 | 23.4 |
70 | 0.3 | 43.9 | 0.7 | 33.5 | 0.6 | 13.1 |
70 | 0.4 | 38.1 | 9.2 | 23.6 | 9.5 | 2.5 |
70 | 0.5 | 40.6 | — | 25.3 | — | — |
70 | 0.6 | 30.1 | 5.4 | 15.4 | 5.2 | 10.2 |
平均相对偏差 | 33.2 | 12.9 | 27.4 | 12.2 | 19.6 |
表5 不同温度下混合油黏度预测结果误差分析
测试温度 /℃ | 掺稀比 | 相对偏差/% | ||||
---|---|---|---|---|---|---|
Cragoe | Cragoe修正 | 双对数 | 双对数修正Ⅱ | 双对数修正Ⅲ | ||
40 | 0.1 | 7.4 | 9.5 | 3.5 | 1.7 | 1.4 |
40 | 0.2 | 33.3 | 31.3 | 34.7 | 37.1 | 37.1 |
40 | 0.3 | 42.0 | 40.0 | 41.1 | 43.9 | 43.9 |
40 | 0.4 | 14.6 | 11.7 | 9.8 | 14.6 | 14.6 |
40 | 0.5 | 3.0 | — | 5.6 | — | — |
40 | 0.6 | 0.9 | 3.4 | 11.6 | 6.1 | 6.1 |
50 | 0.1 | 30.7 | 13.6 | 31.2 | 11.0 | 25.5 |
50 | 0.2 | 41.7 | 18.8 | 40.2 | 19.6 | 31.1 |
50 | 0.3 | 47.8 | 24.1 | 44.1 | 25.5 | 32.7 |
50 | 0.4 | 41.5 | 15.3 | 34.9 | 16.2 | 20.1 |
50 | 0.5 | 28.8 | — | 18.6 | — | — |
50 | 0.6 | 22.6 | 3.4 | 10.7 | 4.3 | 7.8 |
60 | 0.1 | 39.2 | 17.4 | 38.0 | 9.5 | 30.3 |
60 | 0.2 | 46.0 | 14.6 | 42.5 | 11.4 | 29.1 |
60 | 0.3 | 48.1 | 12.9 | 41.9 | 11.7 | 23.9 |
60 | 0.4 | 39.6 | 1.1 | 29.7 | 1.4 | 5.2 |
60 | 0.5 | 37.6 | — | 25.8 | — | — |
60 | 0.6 | 33.9 | 1.1 | 21.2 | 1.3 | 3.5 |
70 | 0.1 | 40.7 | 16.7 | 37.6 | 8.9 | 29.8 |
70 | 0.2 | 44.5 | 7.8 | 37.8 | 4.4 | 23.4 |
70 | 0.3 | 43.9 | 0.7 | 33.5 | 0.6 | 13.1 |
70 | 0.4 | 38.1 | 9.2 | 23.6 | 9.5 | 2.5 |
70 | 0.5 | 40.6 | — | 25.3 | — | — |
70 | 0.6 | 30.1 | 5.4 | 15.4 | 5.2 | 10.2 |
平均相对偏差 | 33.2 | 12.9 | 27.4 | 12.2 | 19.6 |
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