Published
The characteristics of unconventional tight oil reservoir and its modification technology and productivity prediction
Características de reservorios de petróleo compactos no convencionales y sus tecnologías de modificación y de predicción de productividad
DOI:
https://doi.org/10.15446/esrj.v24n4.91473Keywords:
tight reservoir, volume fractured horizontal well, productivity model, start-up pressure gradient, productivity characteristics (en)modelo de productividad, reservorio compacto, pozo horizontal fracturado, presión inicial de gradiente, características de productividad (es)
Downloads
The zonal productivity prediction model of volume fractured horizontal wells in tight reservoirs is established in this study based on the physical model of volume fractured horizontal wells to study the near-well seepage law of volume fractured horizontal wells in unconventional tight reservoirs. The conformal transformation and iteration method are used to solve the problem. Compared with Fan Zifei's and Ning Zhengfu's method, the optimization of fractured horizontal wells' production parameters is studied. The effects of starting pressure gradient and fracture cluster number on horizontal wells' productivity with volume fracturing are analyzed. Multivariate regression analysis is used to rank the importance of influencing factors. The results show that the starting pressure gradient has the most significant impact on capacity. The application example of volume fractured horizontal wells in Lucaogou tight reservoir shows that the zonal productivity model established in this study can be used to predict the initial productivity of volume fractured horizontal wells. Thus, through theoretical analysis and numerical simulation, the productivity prediction model of horizontal wells with volume fracturing has certain guiding significance for the effective development of tight reservoirs.
En este estudio se establece el modelo de predicción de la productividad zonal en los pozos horizontales fracturados en reservorios compactos con base en un modelo fìsico de pozos horizontales fracturados para estudiar el regimen de filtración en reservorios compactos no convencionales. Los autores utilizaron la transformación conforme y el método de reiteración para resolver el problema. Se estudió la optimización de los parámetros de producción en pozos horizontales fracturados en comparación con los métodos de Fan Zifei y de Ning Zhengfu. Además, se analizaron los efectos de la presión inicial de la inclinación y el complejo de fracturas en la productividad de los pozos horizontales con el índice de fracturamiento. El análisis de regresión multivariante se utilizó para clasificar la importancia de los factores influenciadores. Los resultados muestran que la presión inicial de la inclinación tiene el mayor impacto en la capacidad. El ejemplo de aplicación de pozos horizontales fracturados en el reservorio compacto de Lucaogou muestra que el modelo de productividad zonal que se estableció en este estudio puede usarse para predecir la productividad inicial en estos pozos. De este modo, a través del análisis teórico y la simulación numérica, el modelo de predicción de productividad de pozos horizontales fracturados tiene una significancia para el desarrollo efectivo de reservorios compactos.
References
Guo, C., Wei, M., & Liu, H. (2018). Study of gas production from shale reservoirs with multi-stage hydraulic fracturing horizontal well considering multiple transport mechanisms. Plos One, 13(1), pp.e0188480.
Long, J., Cheng, Y., Han, Z., Gao, Q., Yan, C., Wang, H., & Fu, L. (2018). Effect of liquid nitrogen cooling on the permeability and mechanical characteristics of anisotropic shale. Journal of Petroleum Exploration & Production Technology, 9(1), 111-124.
Luo, H., Li, H., Zhang, J., Wang, J., Wan, K., Xia, T., & Zhu, X. (2018). Production performance analysis of fractured horizontal well in tight oil reservoir. Journal of Petroleum Exploration & Production Technology, 8(1), 229-247.
Naik, S., Malgaresi, G., You, Z., & Bedrikovetsky, P. (2018). Well productivity enhancement by applying nanofluids for wettability alteration. APPEA Journal, 58(1), pp.121-129. DOI: https://doi.org/10.1071/aj17149
Peng, W. J., Li, Q., Song, A., & Jin, Z. J. (2018). Spatial-Temporal Variations of CO2 and CH4 Flux Through a Water-air Interface Under the Effect of Primary Productivity in Wulixia Reservoir. Environmental Sciences, 39(6), 2673-2679. DOI: 10.13227/j.hjkx.201709119
Qun, L., Lifeng, Y., Yaoyao, D., Dingwei, W., Xin, W., Baoshan, G., Zhen, W., & Ying, W. (2018). The “fracture-controlled reserves” based stimulation technology for unconventional oil and gas reservoirs. Petroleum Exploration and Development, 45(04), pp.210-218. DOI: https://doi.org/10.1016/S1876-3804(18)30080-6
Ren, L., Su, Y., Zhan, S., & Meng, F. (2019). Progress of the research on productivity prediction methods for stimulated reservoir volume (SRV)-fractured horizontal wells in unconventional hydrocarbon reservoirs. Arabian Journal of Geosciences, 12(6), 184. DOI: 10.1007/s12517-019-4376-2.
Wei-Yao, Z., & Dong-Xu, M. (2018). Effective stress characteristics in shale and its effect on productivity. Natural Gas Geoscience, 3(6), 339-346. DOI: https://doi.org/10.1016/j.jnggs.2018.12.001
Yin, C. (2018). Test and analysis on the permeability of fractured fractures in shale reservoirs. Natural Gas Industry, 5(5), 513-522. DOI: https://doi.org/10.1016/j.ngib.2018.03.006
Zhuoheng, C., Chao, Y., Chunqing, J., Dan, K., Kezhen, H., Xiaojun, L., & Melinda, Y. (2018). Production characteristics and sweet-spots mapping of the Upper Devonian-Lower Mississippian Bakken Formation tight oil in southeastern Saskatchewan, Canada. Petroleum Exploration and Development, 45(4), 102-112. DOI: https://doi.org/10.1016/S1876-3804(18)30070-3
How to Cite
APA
ACM
ACS
ABNT
Chicago
Harvard
IEEE
MLA
Turabian
Vancouver
Download Citation
CrossRef Cited-by
1. Yuan Zhang, Jianyang Chen, Zhongbao Wu, Yuxiang Xiao, Ziyi Xu, Hanlie Cheng, Bin Zhang. (2024). Effect Evaluation of Staged Fracturing and Productivity Prediction of Horizontal Wells in Tight Reservoirs. Energies, 17(12), p.2894. https://doi.org/10.3390/en17122894.
2. Xinyu Zhao, Mofeng Li, Kai Yan, Li Yin. (2023). Revolutionizing Tight Reservoir Production: A Novel Dual-Medium Unsteady Seepage Model for Optimizing Volumetrically Fractured Horizontal Wells. Energy Engineering, 120(12), p.2933. https://doi.org/10.32604/ee.2023.041580.
Dimensions
PlumX
Article abstract page views
Downloads
License

This work is licensed under a Creative Commons Attribution 4.0 International License.
Earth Sciences Research Journal holds a Creative Commons Attribution license.
You are free to:
Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material for any purpose, even commercially.
The licensor cannot revoke these freedoms as long as you follow the license terms.