Dynamic analysis of oil‐water two‐phase flow for a multiple‐fractured horizontal well with multiple finite‐conductivity fractures in triple media carbonate reservoir

2020 ◽  
Vol 100 (4) ◽  
Author(s):  
Yong Wang ◽  
Zhengwu Tao ◽  
Kun Yang ◽  
Xin Ma ◽  
Donghong Tian ◽  
...  
Keyword(s):  
Dynamic Analysis ◽  
Horizontal Well ◽  
Two Phase Flow ◽  
Carbonate Reservoir ◽  
Finite Conductivity ◽  
Phase Flow ◽  
Two Phase ◽  
Fractured Horizontal Well ◽  
Oil Water

scholarly journals Productivity for Horizontal Wells in Low-Permeability Reservoir with Oil/Water Two-Phase Flow

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Yu-Long Zhao ◽  
Lie-Hui Zhang ◽  
Zhi-Xiong He ◽  
Bo-Ning Zhang
Keyword(s):  
Horizontal Well ◽  
Two Phase Flow ◽  
Separation Of Variables ◽  
Three Dimensional ◽  
Influential Factors ◽  
Practical Significance ◽  
Low Permeability ◽  
Phase Flow ◽  
Two Phase ◽  
Oil Water

This paper presents a semianalytical steady-state productivity of oil/water two-phase flow in low-permeability reservoirs with both top and bottom boundaries closed which takes the permeability stress-sensitive and threshold pressure gradient into account. Using the similar approach as Joshi’s (1988), the three-dimensional (3D) horizontal well problem is divided into two two-dimensional problems (2D), and then the corresponding nonlinear steady seepage mathematical models in vertical and horizontal planes are established. Through the separation of variables method and equivalent flow resistance principle, the productivity equation of horizontal well is obtained. The liquid and oil productivity with different influential factors are plotted, and the related effects are also analyzed. This paper expanded the conventional productivity equations of single phase into multiphase flow which have both theoretical and practical significance in predicting production behaviors in such reservoirs.

The Deliverability of Horizontal Wells of the Oil-Water Fluid in Bottom Water Drive Reservoir

2013 ◽  
Vol 318 ◽  
pp. 473-476
Author(s):  
Chun Sen Zhao ◽  
Chao Li ◽  
Pei Jing Li
Keyword(s):  
Horizontal Well ◽  
Bottom Water ◽  
Two Phase Flow ◽  
Superposition Principle ◽  
Water Reservoir ◽  
Phase Flow ◽  
Practical Application ◽  
Two Phase ◽  
Well Productivity ◽  
Oil Water

First, we researched permanent infiltrating fluid of horizontal well of the bottom water reservoir using the method of the mirror reflex ion and the potential superposition principle, so we obtained productivity formula of bottom water reservoir in the condition of monophase flow; On the basis of monophase flow, with the horizontal well productivity of monophase flow as the initial production, we deduced horizontal well productivity formula of two-phase flow of bottom water drive reservoir using the potential superposition principle and the method of equivalent filtrational resistance. This formula fit in with the field data in the practical application, therefore the theoretical study of this article has a certain guiding significance to the research and application on bottom water drive reservoir oil-water two phase flow.

scholarly journals Temperature Prediction Model for Two-Phase Flow Multistage Fractured Horizontal Well in Tight Oil Reservoir

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Ruidou Zhang ◽  
Yonggang Duan ◽  
Mingqiang Wei
Keyword(s):  
Horizontal Well ◽  
Two Phase Flow ◽  
Tight Oil ◽  
Oil Reservoir ◽  
Phase Flow ◽  
Thomson Effect ◽  
Temperature Prediction ◽  
Two Phase ◽  
Fractured Horizontal Well ◽  
Tight Oil Reservoir

Distributed temperature sensing (DTS) has been used for fracture parameter diagnosis and flow profile monitoring. In this paper, we present a new model for predicting the temperature profile of two-phase flow multistage fractured horizontal wells in the tight oil reservoirs. The homogeneous reservoir flow/heat transfer model is extended to the tight oil reservoir-fracture-wellbore coupled flow/thermal model. The influence of SRV area on reservoir and wellbore is considered, and the Joule-Thomson effect, heat convection, heat conduction, and other parameters are introduced into the improved model. The temperature distributions of reservoir and wellbore with different production times, water cut, and locations of water entry are simulated. The simulated results indicate that the Joule-Thomson effect will cause wellbore temperature to rise; the temperature of fractures with more water production is significantly lower than that of other fractures, and the water outlet location can be judged according to the temperature change of the wellbore. By using the improved temperature prediction model, the DTS monitoring data of two-phase flow multistage fractured horizontal well in the tight reservoir has been calculated and analyzed, and the accurate production profile has been obtained.

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