Investigating Geomechanical Considerations on Suitable Layer Selection for Hydraulically Fractured Horizontal Wells Placement in Tight Reservoirs

2020 ◽  
Author(s):  
Nagham Jasim Al-Ameri ◽  
Sameera Mohammed Hamd-Allah ◽  
Hazim Hussain Abass
Keyword(s):  
Horizontal Wells ◽  
Tight Reservoirs ◽  
Selection For ◽  
Fractured Horizontal Wells

scholarly journals The characteristics of unconventional tight oil reservoir and its modification technology and productivity prediction

2021 ◽  
Vol 24 (4) ◽  
pp. 507-512
Author(s):  
Yang Fan ◽  
Liu Lifeng ◽  
Ran Qiquan ◽  
Kong Jinping ◽  
Xu Mengya ◽  
...  
Keyword(s):  
Prediction Model ◽  
Pressure Gradient ◽  
Horizontal Wells ◽  
Multivariate Regression Analysis ◽  
Cluster Number ◽  
Tight Reservoirs ◽  
Volume Fracturing ◽  
Fractured Horizontal Wells ◽  
Productivity Prediction ◽  
Starting Pressure Gradient

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.

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