Effect Evaluation of Staged Fracturing and Productivity Prediction of Horizontal Wells in Tight Reservoirs
Abstract
:1. Introduction
2. Literature Review
3. Materials and Methods
3.1. Geological Characteristics and Flow Mechanism of Tight Reservoirs
3.2. Seepage Characteristics of Fractured Horizontal Wells
3.3. Physical Model of Horizontal Well Fracturing in Tight Reservoir
4. Result
4.1. Effect Evaluation of Fractured Horizontal Well
4.2. Study on Fracturing Productivity of Horizontal Wells in Tight Reservoirs
- There is a cuboid closed-boundary reservoir, whose dimensions are successively long xe, wide ye and high ze.
- There is a cuboid source of production in the reservoir, and its flow rate is q. Assuming that it obeys a uniform flow rate, its center position is (cx, cy, cz) and its size is (2wx, 2wy, 2wz).
- The fluid flows isothermally and conforms to Darcy’s law, regardless of the interference of capillary force and gravity.
4.3. Effect Evaluation and Productivity Prediction Based on Deep Learning
5. Discussion
6. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
Correction Statement
References
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Port Symbol | Variable (Fracture Physical Information) |
---|---|
Input I1 | Length |
Input I2 | Width |
Input I3 | Density |
Input I4 | Diversion capacity |
Output O1 | Yield |
Group | I1 | I2 | I3 | I4 | O1 |
---|---|---|---|---|---|
1 | 0.73 | 0.88 | 0.14 | 0.72 | 0.97 |
2 | 0.25 | 0.42 | 0.79 | 0.33 | 0.86 |
3 | 0.89 | 0.76 | 0.38 | 0.95 | 0.56 |
4 | 0.46 | 0.09 | 0.67 | 0.18 | 0.72 |
5 | 0.62 | 0.57 | 0.50 | 0.61 | 0.85 |
6 | 0.17 | 0.31 | 0.92 | 0.48 | 0.63 |
7 | 0.98 | 0.64 | 0.26 | 0.87 | 0.58 |
8 | 0.34 | 0.93 | 0.61 | 0.26 | 0.71 |
9 | 0.51 | 0.20 | 0.05 | 0.59 | 0.99 |
10 | 0.05 | 0.71 | 0.83 | 0.10 | 0.75 |
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Zhang, Y.; Chen, J.; Wu, Z.; Xiao, Y.; Xu, Z.; Cheng, H.; Zhang, B. Effect Evaluation of Staged Fracturing and Productivity Prediction of Horizontal Wells in Tight Reservoirs. Energies 2024, 17, 2894. https://doi.org/10.3390/en17122894
Zhang Y, Chen J, Wu Z, Xiao Y, Xu Z, Cheng H, Zhang B. Effect Evaluation of Staged Fracturing and Productivity Prediction of Horizontal Wells in Tight Reservoirs. Energies. 2024; 17(12):2894. https://doi.org/10.3390/en17122894
Chicago/Turabian StyleZhang, Yuan, Jianyang Chen, Zhongbao Wu, Yuxiang Xiao, Ziyi Xu, Hanlie Cheng, and Bin Zhang. 2024. "Effect Evaluation of Staged Fracturing and Productivity Prediction of Horizontal Wells in Tight Reservoirs" Energies 17, no. 12: 2894. https://doi.org/10.3390/en17122894