Effect of Nanopore Confinement on Fluid Phase Behavior and Production Performance in Shale Oil Reservoir

2021 ◽  
Vol 60 (3) ◽  
pp. 1463-1472
Author(s):  
Zhaojie Song ◽  
Yilei Song ◽  
Jia Guo ◽  
Dong Feng ◽  
Jiangbo Dong
Keyword(s):  
Phase Behavior ◽  
Fluid Phase ◽  
Production Performance ◽  
Oil Reservoir ◽  
Shale Oil ◽  
Nanopore Confinement

Coupled compositional flow and geomechanics modeling of fractured shale oil reservoir with confined phase behavior

2021 ◽  
Vol 196 ◽  
pp. 107608
Author(s):  
Yuhu Bai ◽  
Lijun Liu ◽  
Weipeng Fan ◽  
Hai Sun ◽  
Zhaoqin Huang ◽  
...  
Keyword(s):  
Phase Behavior ◽  
Oil Reservoir ◽  
Shale Oil ◽  
Compositional Flow

A numerical study of fluids desorption and phase behavior in shale oil reservoir using a chemical reaction model

2021 ◽  
Vol 196 ◽  
pp. 108050
Author(s):  
Meng Li ◽  
YuLiang Su ◽  
MingZhe Dong ◽  
LiHong Zhou ◽  
YaJun Li ◽  
...  
Keyword(s):  
Phase Behavior ◽  
Chemical Reaction ◽  
Numerical Study ◽  
Reaction Model ◽  
Oil Reservoir ◽  
Shale Oil ◽  
Chemical Reaction Model

scholarly journals Pore-Scale Simulation of Confined Phase Behavior with Pore Size Distribution and Its Effects on Shale Oil Production

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1315
Author(s):  
Jingwei Huang ◽  
Hongsheng Wang
Keyword(s):  
Phase Equilibrium ◽  
Equation Of State ◽  
Pore Size Distribution ◽  
Phase Behavior ◽  
Pore Size ◽  
Size Distribution ◽  
Critical Role ◽  
Shale Oil ◽  
Pore Scale ◽  
Modified Equation

Confined phase behavior plays a critical role in predicting production from shale reservoirs. In this work, a pseudo-potential lattice Boltzmann method is applied to directly model the phase equilibrium of fluids in nanopores. First, vapor-liquid equilibrium is simulated by capturing the sudden jump on simulated adsorption isotherms in a capillary tube. In addition, effect of pore size distribution on phase equilibrium is evaluated by using a bundle of capillary tubes of various sizes. Simulated coexistence curves indicate that an effective pore size can be used to account for the effects of pore size distribution on confined phase behavior. With simulated coexistence curves from pore-scale simulation, a modified equation of state is built and applied to model the thermodynamic phase diagram of shale oil. Shifted critical properties and suppressed bubble points are observed when effects of confinement is considered. The compositional simulation shows that both predicted oil and gas production will be higher if the modified equation of state is implemented. Results are compared with those using methods of capillary pressure and critical shift.

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