Reservoir Evaluation and Development ›› 2018, Vol. 8 ›› Issue (4): 52-57.
• Petroleum Engineering • Previous Articles Next Articles
Tan Xin1,Pu Wanfen1,Wang Ning2,Wang Li3,Sun Boshuai1
Received:
2017-08-17
Online:
2018-08-26
Published:
2018-11-28
CLC Number:
Tan Xin,Pu Wanfen,Wang Ning,Wang Li,Sun Boshuai. Polymer displacing modeling experiment of conglomerate reservoir with different interlayer heterogeneous[J].Reservoir Evaluation and Development, 2018, 8(4): 52-57.
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Table 1
Basic parameters of core simulation"
组号 | 高渗组 | 中渗组 | 低渗组 | 平均渗透率/10-3μm2 | 变异系数,f | |||||
---|---|---|---|---|---|---|---|---|---|---|
渗透率/10-3μm2 | 孔隙度,% | 渗透率/10-3μm2 | 孔隙度,% | 渗透率/10-3μm2 | 孔隙度,% | |||||
1 | 945 | 24.03 | 418 | 17.67 | 120 | 17.67 | 494 | 0.70 | ||
2 | 1 101 | 32.17 | 276 | 15.76 | 85 | 17.98 | 494 | 0.88 | ||
3 | 2 061 | 17.73 | 859 | 19.23 | 233 | 17.98 | 1 051 | 0.72 | ||
4 | 2 318 | 16.31 | 455 | 17.80 | 259 | 15.63 | 1 010 | 0.91 | ||
5 | 3 864 | 32.44 | 1 606 | 31.44 | 535 | 15.64 | 2 001 | 0.69 | ||
6 | 4 546 | 33.39 | 1 101 | 16.31 | 417 | 17.62 | 2 021 | 0.89 | ||
7 | 9 820 | 29.70 | 3 882 | 31.8 | 1 455 | 21.60 | 5 052 | 0.70 | ||
8 | 11 081 | 33.72 | 3 035 | 32.52 | 1 107 | 17.04 | 5 074 | 0.85 |
Table 2
Data statistics of simulation displacement experiment of interlayer heterogeneity %"
组号 | 岩心 类型 | 原始含油 饱和度 | 不同阶段采收率 | 模型综合 采收率 | ||
---|---|---|---|---|---|---|
水驱 | 聚合物驱 | 后续水驱 | ||||
1 | 高渗 | 87.90 | 54.31 | 64.65 | 83.85 | 67.91 |
中渗 | 87.00 | 32.03 | 42.75 | 67.75 | ||
低渗 | 86.45 | 15.65 | 30.15 | 52.14 | ||
2 | 高渗 | 90.50 | 59.47 | 81.06 | 86.74 | 44.63 |
中渗 | 80.30 | 4.88 | 36.59 | 47.15 | ||
低渗 | 82.41 | 0 | 0 | 0 | ||
3 | 高渗 | 86.20 | 42.74 | 53.65 | 68.70 | 50.00 |
中渗 | 73.80 | 21.74 | 45.02 | 62.24 | ||
低渗 | 66.42 | 0 | 14.29 | 19.05 | ||
4 | 高渗 | 89.11 | 49.40 | 63.69 | 76.19 | 31.00 |
中渗 | 74.90 | 0.00 | 8.80 | 16.80 | ||
低渗 | 72.10 | 0 | 0 | 0 | ||
5 | 高渗 | 88.74 | 39.34 | 46.72 | 63.37 | 39.51 |
中渗 | 86.52 | 10.71 | 34.82 | 55.16 | ||
低渗 | 85.63 | 0 | 0 | 0 | ||
6 | 高渗 | 77.63 | 48.42 | 68.78 | 82.81 | 27.60 |
中渗 | 78.88 | 0 | 0 | 0 | ||
低渗 | 80.21 | 0 | 0 | 0 | ||
7 | 高渗 | 83.40 | 48.82 | 67.30 | 69.19 | 23.06 |
中渗 | 83.27 | 0 | 0 | 0 | ||
低渗 | 75.90 | 0 | 0 | 0 | ||
8 | 高渗 | 83.53 | 35.77 | 67.07 | 76.02 | 25.34 |
中渗 | 89.10 | 0 | 0 | 0 | ||
低渗 | 84.30 | 0 | 0 | 0 |
Table 3
Cluster formation situation of different models"
组别 | 平均渗透率/ 10-3μm2 | 变异系数,f | 窜流开始(PV), f | 高渗层吸液百分数, % | 窜流完全形成(PV), f | 高渗层吸液百分数, % | 聚窜高峰值/ (mg·L-1) |
---|---|---|---|---|---|---|---|
1 | 494 | 0.7 | 0.66 | 37 | 1.43 | 70 | 493.64 |
3 | 1 051 | 0.72 | 0.18 | 58 | 0.72 | 100 | 863.46 |
5 | 2 001 | 0.69 | 0.14 | 54 | 0.28 | 68 | 279.65 |
7 | 5 052 | 0.7 | 0 | 100 | 0.07 | 100 | 1 401.54 |
2 | 494 | 0.88 | 0.55 | 64 | 0.88 | 75 | 279.65 |
4 | 1 010 | 0.91 | 0 | 100 | 0.09 | 100 | 1 445.77 |
6 | 2 021 | 0.89 | 0 | 100 | 0.09 | 100 | 883.64 |
8 | 5 074 | 0.85 | 0 | 100 | 0.07 | 100 | 1 468.85 |
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