Numerical Well Testing Interpretation Method and Application Under Interference from Adjacent Well in Polymer Flooding Reservoir

2020 ◽  
Author(s):  
Xiaodong Kang ◽  
Yang Zeng ◽  
Jian Zhang ◽  
Engao Tang ◽  
Shiqing Cheng

2015 ◽  
Vol 46 (11) ◽  
pp. 1133-1141 ◽  
Author(s):  
H. Yu ◽  
Ke Pan ◽  
S. Li ◽  
H. Guo ◽  
Y. He ◽  
...  


2014 ◽  
Vol 26 (17) ◽  
pp. 5783-5788 ◽  
Author(s):  
Haiyang Yu ◽  
Hui Guo ◽  
Shiqing Cheng ◽  
Lei Li ◽  
Shuping Chang ◽  
...  


2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Haiyang Yu ◽  
Hui Guo ◽  
Youwei He ◽  
Hainan Xu ◽  
Lei Li ◽  
...  

This work presents numerical well testing interpretation model and analysis techniques to evaluate formation by using pressure transient data acquired with logging tools in crossflow double-layer reservoirs by polymer flooding. A well testing model is established based on rheology experiments and by considering shear, diffusion, convection, inaccessible pore volume (IPV), permeability reduction, wellbore storage effect, and skin factors. The type curves were then developed based on this model, and parameter sensitivity is analyzed. Our research shows that the type curves have five segments with different flow status: (I) wellbore storage section, (II) intermediate flow section (transient section), (III) mid-radial flow section, (IV) crossflow section (from low permeability layer to high permeability layer), and (V) systematic radial flow section. The polymer flooding field tests prove that our model can accurately determine formation parameters in crossflow double-layer reservoirs by polymer flooding. Moreover, formation damage caused by polymer flooding can also be evaluated by comparison of the interpreted permeability with initial layered permeability before polymer flooding. Comparison of the analysis of numerical solution based on flow mechanism with observed polymer flooding field test data highlights the potential for the application of this interpretation method in formation evaluation and enhanced oil recovery (EOR).





2011 ◽  
Author(s):  
Hui Deng ◽  
Xia Bao ◽  
Zhangxin John Chen ◽  
Ruihe Wang


2013 ◽  
Vol 433-435 ◽  
pp. 1984-1987
Author(s):  
Yu Chen Zhang ◽  
Jiu Ning Zhou ◽  
Jing Wen Cui

At present, threshold pressure gradient method is usually used for describing fluid flow in low-permeability media. However, it is only an approximate approach. In this paper, a 2-D fractured-well model for numerical well-testing considering non-darcy mutative-permeability effect was established, and PSOR iterative algorithm was used for solving the sets of algebraic equations. Based on this model, the typical curves of pressure and pressure derivative were drawn with different sets of parameters. When considering mutative-permeability effect, the pressure derivative curves move upward in each flowing period compared with darcy flowing model. In addition, the range of upward movement is larger as the non-darcy effect is more notable.



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