Reservoir Evaluation and Development ›› 2019, Vol. 9 ›› Issue (1): 15-22.
• Reservoir Evaluation • Previous Articles Next Articles
Yu Qiannan1,2,Liu Yikun1,Yao Di2,Liu Xue1,Yu Yang2
Received:
2018-03-02
Online:
2019-02-26
Published:
2019-02-15
CLC Number:
Yu Qiannan,Liu Yikun,Yao Di,Liu Xue,Yu Yang. Experimental study on seepage flow patterns of fine controlled fractured thin and poor reservoirs[J].Reservoir Evaluation and Development, 2019, 9(1): 15-22.
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Table 1
Experimental conditions and typical parameters of fine controlled fractured thin and poor reservoirs"
不同模型 | 模型边长/m | 注采间距/m | 厚度/ m | 裂缝半径/m | 注采压差/MPa | 油黏度/ (mPa·s) | 水黏度/ (mPa·s) | 渗透率/10-3μm2 | 孔隙度 | 油密度/ ( g·cm-3) | 水密度/ ( g·cm-3) |
---|---|---|---|---|---|---|---|---|---|---|---|
平板模型实验 | 0.3 | 0.42 | 0.045 | 0.105 | 0.42 | 4.09 | 0.61 | 10 ~ 50 | 0.195 | 0.88 | 1 |
薄差储层典型 | 140 | 200 | 7.5 | 50 | 20 | 6.7 | 1.0 |
Table 4
Seepage flow sections of thin and poor reservoirs before and after fine controlled fracturing"
平板模型代号 | 不流动区 | 非线性流动区 | 拟线性流动区 | |||||
---|---|---|---|---|---|---|---|---|
面积占比,% | 变化幅度,% | 面积占比,% | 变化幅度,% | 面积占比,% | 变化幅度,% | |||
(10~10)×10-3μm2 | 15.749 | 50.707 | 33.544 | |||||
LF(10~10)×10-3μm2 | 4.199 | -73.338 | 29.852 | -41.128 | 65.949 | 96.604 | ||
(10~20)×10-3μm2 | 14.612 | 49.667 | 35.721 | |||||
LF(10~20)×10-3μm2 | 4.058 | -72.228 | 29.425 | -40.755 | 66.517 | 86.213 | ||
(10~50)×10-3μm2 | 14.361 | 49.504 | 36.135 | |||||
LF(10~50)×10-3μm2 | 4.013 | -72.056 | 28.405 | -42.621 | 67.582 | 87.026 |
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