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Academic Journal of Engineering and Technology Science, 2022, 5(2); doi: 10.25236/AJETS.2022.050210.

Solution of Transient Pressure in Radial Composite Oil Reservoir by Variable Separation Method


Bingfu Luo1, Jian Gao2, Hao Kang3, Guangfu Zhai

Corresponding Author:
Jian Gao, Hao Kang

1CNOOC International Limited, Beijing, 100029, China

2State Key Laboratory of Enhanced Oil Recovery, RIPED, Beijing, 100083, China

3Polytechnic College, Hebei Normal University, Shijiazhuang, 050024, China


Due to original sedimentary environments and accumulation processes, oil and gas reservoir are usually of great in-homogeneity. After the later-stage reservoir stimulation measures, the formation property of near-well zone and distant-well zone are often quite different. In order to characterize this kind of reservoir more accurately, the reservoir can be radially treated as composite reservoir with different zones. Based on method of variables separation to solve conventional flow problems, the pressure solution is originally obtained for radially dual composite reservoir by using the same method. This case enlarged the application of variables separation method for solving flow problems in oil and gas reservoir, and these work is also of great significance for evaluation of composite reservoirs. 


radial flow, transient flow, method of variables separation, analytical solution, composite reservoir

Cite This Paper

Bingfu Luo, Jian Gao, Hao Kang, Guangfu Zhai. Solution of Transient Pressure in Radial Composite Oil Reservoir by Variable Separation Method. Academic Journal of Engineering and Technology Science (2022) Vol. 5, Issue 2: 53-59. https://doi.org/10.25236/AJETS.2022.050210.


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