The Influence of Dynamic Capillary Pressure on the Seepage of Ultra-Low Permeability Reservoir

2014 ◽  
Vol 7 (1) ◽  
pp. 55-63 ◽  
Author(s):  
Haiyong Zhang ◽  
Shunli He ◽  
Chunyan Jiao ◽  
Guohua Luan ◽  
Shaoyuan Mo
Keyword(s):  
Capillary Pressure ◽  
Low Permeability ◽  
Low Permeability Reservoir ◽  
Dynamic Capillary Pressure

The Research of Capillary Pressure in the Process of CO2 Displacement in Low-permeability Reservoir

2015 ◽  
Vol 8 (1) ◽  
Author(s):  
Li Jiqiang ◽  
Huang Xiaoliang ◽  
Niu Xiaofeng ◽  
Yuan Yingzhong ◽  
Yan Wende
Keyword(s):  
Capillary Pressure ◽  
Low Permeability ◽  
Low Permeability Reservoir

scholarly journals The Research of Capillary Pressure in the Process of CO Displacement in Low-Permeability Reservoir

2015 ◽  
Vol 8 (1) ◽  
pp. 248-252
Author(s):  
Li Jiqiang ◽  
Huang Xiaoliang ◽  
Niu Xiaofeng ◽  
Yuan Yingzhong ◽  
Yan Wende
Keyword(s):  
Numerical Simulation ◽  
Capillary Pressure ◽  
Driving Force ◽  
Component Model ◽  
Resistance Force ◽  
Low Permeability ◽  
One Dimensional ◽  
Low Permeability Reservoir ◽  
Displacement Experiments ◽  
Low Permeability Reservoirs

The function of capillary pressure in the process of CO displacement in low-permeability reservoir is researched through combination of indoor experiments and numerical simulation. On the basis of different displacement experiments in long core chamber, one-dimensional numerical simulation component model is built to research the function of capillary pressure under the different CO displacement ways. The results show that the capillary pressure under the different CO displacement ways is not consistent. Capillary pressure is the driving force in the process of CO displacement while resistance force in the process of CO pressure buildup and displacement. In order to promote reasonable and efficient development of low-permeability reservoirs, it is suggested that further study about microscopic effects and laws of the capillary pressure in the reservoir should be done through experiment.

Increment-Dimensional Precise Integration Method of Oil-Water Coupling Flows in a Low Permeability Reservoir with Capillary Pressure

2014 ◽  
Vol 580-583 ◽  
pp. 2883-2889
Author(s):  
Fu Liang Mei ◽  
Gui Ling Li
Keyword(s):  
Capillary Pressure ◽  
Difference Method ◽  
Low Permeability ◽  
Pressure Gradients ◽  
State Equations ◽  
Two Phase ◽  
Precise Integration ◽  
Low Permeability Reservoir ◽  
Oil Water ◽  
Grid Nodes

The simulation of two-phase oil-water coupling flows in a low permeability reservoir with capillary pressure and start-up pressure gradient was carried out. First of all, the state equations with all the oil pressures at grid nodes were established based on lump-centre finite difference method. Secondly, the recurrence formulae of all the oil pressures and water saturations at grid nodes were built up according to IDPIM and an explicit difference method, respectively. Finally, the simulation of two-phase oil-water coupling flows for a typical five point area water injection as an example was carried out. Simulating results show that capillary pressure has a little effect on moisture rate and oil production, but startup pressure gradients have an outstanding effect on them. Therefore the existence of startup pressure gradients will enhance the difficulty of oil development.

Effects of Chemical Additives on Dynamic Capillary Pressure during Waterflooding in Low Permeability Reservoirs

2016 ◽  
Vol 30 (9) ◽  
pp. 7082-7093 ◽  
Author(s):  
Haitao Li ◽  
Ying Li ◽  
Shengnan Chen ◽  
Jia Guo ◽  
Ke Wang ◽  
...  
Keyword(s):  
Capillary Pressure ◽  
Low Permeability ◽  
Chemical Additives ◽  
Dynamic Capillary Pressure ◽  
Low Permeability Reservoirs
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