The Temperature Field Distribution in Thermal Recovery and the Study on Residual Oil Distribution Laws

2013 ◽  
Vol 787 ◽  
pp. 693-698
Author(s):  
Bo Li ◽  
Hao Zhang ◽  
Anan Liu ◽  
Hua Bin Wei ◽  
Xue Du ◽  
...  
Keyword(s):  
Temperature Field ◽  
Field Distribution ◽  
High Water ◽  
Thermal Recovery ◽  
Test Area ◽  
Water Flooding ◽  
Residual Oil ◽  
Temperature Field Distribution ◽  
Distribution Features ◽  
Distribution Laws

Western Bei II Area in Saertu Oilfield, Daqing Oilfield is the test area. It has now entered an exploitation phase of extra high water cut stage. Under the circumstance of a long time of development and complex conditions of well history in this area, it has experienced water flooding, polymer flooding and thermal recovery. Based on basic geological characteristics in the test area, this study establishes three-dimensional geological static models and conducts the fine reservoir numerical simulation of the test area. In addition, it summarizes the temperature field distribution features before and after the thermal recovery as well as causes and distribution laws of the residual oil, which provides a reliable basis for development, deployment and measures to adjust in the next step in oilfields.

Research on Residual Oil Distribution Regular of Steam Flooding after Polymer Flooding

2013 ◽  
Vol 734-737 ◽  
pp. 1440-1444 ◽  
Author(s):  
Shang Ming Shi ◽  
Hua Bin Wei ◽  
Bo Li ◽  
Hong Lou ◽  
Dong Kai Huo
Keyword(s):  
Numerical Simulation ◽  
High Water ◽  
Polymer Flooding ◽  
Test Area ◽  
Oil Field ◽  
Water Flooding ◽  
Field Development ◽  
Steam Flooding ◽  
Remaining Oil ◽  
Distribution Laws

The study on distribution laws of remaining oil in high water cut stage is the difficulty of oil field development in the mid-to late period. Aiming at the long development time of Western Bei 2 area of Saertu oilfield in Daqing Oilfield and its complicated well history conditions undergone water flooding, polymer flooding and steam flooding, the 3D geological static model has been established in this test area based on the study on its structure characteristics and sedimentary features. By applying the method of fine reservoir numerical simulation, the paper completes the numerical simulation of remaining oil in the test area and summarizes types of remaining oil as well as their distribution laws in the test area, which provides a reliable basis for the further deployment and adjustment measures in the oilfield.

scholarly journals Three-Dimensional Electro-Thermal Analysis of a New Type Current Transformer Design for Power Distribution Networks

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1792
Author(s):  
Bingbing Dong ◽  
Yu Gu ◽  
Changsheng Gao ◽  
Zhu Zhang ◽  
Tao Wen ◽  
...  
Keyword(s):  
Boundary Condition ◽  
Temperature Field ◽  
Temperature Gradient ◽  
Field Distribution ◽  
Distribution Network ◽  
Current Transformer ◽  
Internal Temperature ◽  
Temperature Field Distribution ◽  
Type Design ◽  
New Type

In recent years, the new type design of current transformer with bushing structure has been widely used in the distribution network system due to its advantages of miniaturization, high mechanical strength, maintenance-free, safety and environmental protection. The internal temperature field distribution is an important characteristic parameter to characterize the thermal insulation and aging performance of the transformer, and the internal temperature field distribution is mainly derived from the joule heat generated by the primary side guide rod after flowing through the current. Since the electric environment is a transient field and the thermal environment changes slowly with time as a steady field under the actual conditions, it is more complex and necessary to study the electrothermal coupling field of current transformer (CT). In this paper, a 3D simulation model of a new type design of current transformer for distribution network based on electric-thermal coupling is established by using finite element method (FEM) software. Considering that the actual thermal conduction process of CT is mainly by conduction, convection and radiation, three different kinds of boundary conditions such as solid heat transfer boundary condition, heat convection boundary condition and surface radiation boundary condition are applied to the CT. Through the model created above, the temperature rise process and the distribution characteristics of temperature gradient of the inner conductor under different current, different ambient temperatures and different core diameters conditions are studied. Meanwhile, the hottest temperature and the maximum temperature gradient difference are calculated. According to this, the position of weak insulation of the transformer is determined. The research results can provide a reference for the factory production of new type design of current transformer.

scholarly journals The study of three-dimensional temperature field distribution reconstruction using ultrasonic thermometry

AIP Advances ◽  
2016 ◽  
Vol 6 (7) ◽  
pp. 075007 ◽  
Author(s):  
Ruixi Jia ◽  
Qingyu Xiong ◽  
Kai Wang ◽  
Lijie Wang ◽  
Guangyu Xu ◽  
...  
Keyword(s):  
Temperature Field ◽  
Field Distribution ◽  
Three Dimensional ◽  
Temperature Field Distribution

Simulation and Optimization of Temperature Field of Tank Cover with Super Large Diameter during the Creep Aging Forming Process

2021 ◽  
Vol 315 ◽  
pp. 3-9
Author(s):  
Yuan Gao ◽  
Li Hua Zhan ◽  
Hai Long Liao ◽  
Xue Ying Chen ◽  
Ming Hui Huang
Keyword(s):  
Temperature Field ◽  
Field Distribution ◽  
Temperature Difference ◽  
Single Stage ◽  
Maximum Temperature ◽  
Heating Process ◽  
Temperature Field Distribution ◽  
Two Stage ◽  
Maximum Temperature Difference ◽  
Forming Accuracy

The uniformity of temperature field distribution in creep aging process is very important to the forming accuracy of components. In this paper, the temperature field distribution of 2219 aluminum alloy tank cover during aging forming is simulated by using the finite element software FLUENT, and a two-stage heating process is proposed to reduce the temperature field distribution heterogeneity. The results show that the temperature difference of the tank cover is large in the single-stage heating process, and the maximum temperature difference is above 27°C,which seriously affects the forming accuracy of the tank cover. With two-stage heating process, the temperature difference in the first stage has almost no direct impact on the forming accuracy of the top cover. In the second stage, the temperature difference of the tank cover is controlled within 10°C, compared with the single-stage heating, the maximum temperature difference is reduced by more than 17°C. The two-stage heating effectively reduces the heterogeneity of the temperature field of the top cover. The research provides technical support for the precise thermal mechanical coupling of large-scale creep aging forming components.

Modeling the Temperature Field Distribution at the Stages of Input-Output of the Electron Beam

2021 ◽  
pp. 331-339
Author(s):  
Sergei Kurashkin ◽  
Vadim Tynchenko ◽  
Aleksandr Murygin ◽  
Yuriy Seregin ◽  
Valeriya Tynchenko ◽  
...  
Keyword(s):  
Temperature Field ◽  
Electron Beam ◽  
Field Distribution ◽  
Input Output ◽  
Temperature Field Distribution
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