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Tianfu Xu
Jilin University
Geothermal gradientGeologyGeotechnical engineeringPetroleum engineeringDissolution
160Publications
31H-index
4,651Citations
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Publications 162
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#1Hailong Tian (JLU: Jilin University)H-Index: 10
#2Ceting Yu (JLU: Jilin University)
Last. Songhua Shang (JLU: Jilin University)H-Index: 1
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Abstract Predicting the distribution and resource of gas hydrates and understanding gas hydrate forming mechanisms are critical for assessing natural gas hydrate exploration potential, as well as exploiting hydrates. This study aims to provide a portable solution for evaluating resource of natural gas hydrate and quantifying contribution of methane sources via numerical simulations constrained by site-specific data. To numerically describe the complex process of biogenic methane production, an i...
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#1Huixing Zhu (JLU: Jilin University)H-Index: 2
#2Tianfu Xu (JLU: Jilin University)H-Index: 31
Last. Xin Xin (JLU: Jilin University)H-Index: 4
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Abstract A large number of data on gas production and reservoir characteristics were released after the 2013 and 2017 offshore natural gas hydrate production tests in the Eastern Nankai Trough of Japan. However, the systematic comparison of the two production tests is still limited. Therefore, in this study, we first reviewed the gas and water production processes of the three production boreholes in the two production tests. Some problems were found by comparing the gas and water production rat...
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#1Zixu Hu (JLU: Jilin University)H-Index: 1
#2Tianfu Xu (JLU: Jilin University)H-Index: 31
Last. Zhenjiao Jiang (JLU: Jilin University)H-Index: 5
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Abstract A co-axial closed-loop geothermal system is a new method to extract geothermal energy. It uses a continuously closed wellbore and the closed system can avoid many problems of traditional geothermal development methods, such as reservoir blockage and heat transmission fluid leakage. Generally, water as a working fluid will cause a series of problems which are not conducive to the operation and maintenance of the geothermal system. Recently, using CO2 as a working fluid has attracted cons...
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#1Yingli Xia (JLU: Jilin University)H-Index: 3
#2Tianfu Xu (JLU: Jilin University)H-Index: 31
Last. Xin Xin (JLU: Jilin University)H-Index: 4
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Natural gas hydrate is considered as one of the best potential alternative resource to address the world’s energy demand. The available geological data at the Mallik site of Canada indicates the vertical heterogeneities of hydrate reservoir petrophysical properties. According to the logging data and sample analysis results at the Mallik 2L-38 well, a 2D model of geologically descriptive hydrate-bearing sediments was established to investigate the multiphase flow behaviors in hydrate reservoir in...
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#1Tianfu Xu (JLU: Jilin University)H-Index: 31
#2Zixu Hu (JLU: Jilin University)H-Index: 1
Last. Zhenjiao Jiang (JLU: Jilin University)H-Index: 5
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Geothermal energy is one of the most potential renewable energy resources. How to efficiently extract and utilize geothermal energy has been a worldwide hot topic. Co-axial closed-loop geothermal s...
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#1Huixing Zhu (JLU: Jilin University)H-Index: 2
#2Tianfu Xu (JLU: Jilin University)H-Index: 31
Last. Hailong Tian (JLU: Jilin University)H-Index: 10
view all 5 authors...
Abstract The natural gas hydrates detected in Shenhu Area, South China Sea are considered to have great potential for exploitation and to become a research hotspot. However, details of the dynamic accumulation and evolution processes of gas hydrate over a long time in this area remain unclear. In this study, we developed a numerical model to predict the accumulation of gas hydrates in the marine sediments by introducing the biogenic methanogenesis module to the framework of the existing simulato...
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#1Huixing Zhu (JLU: Jilin University)H-Index: 2
#2Tianfu Xu (JLU: Jilin University)H-Index: 31
Last. Xin Xin (JLU: Jilin University)H-Index: 4
view all 6 authors...
Abstract Sand production, which poses a great challenge for sustainable methane gas production, is commonly encountered during natural gas extraction from unconsolidated hydrate-bearing sediments. However, studies on the subject are still limited. This paper provides a numerical model, coupled with thermo-hydro-mechanical (THM) processes, which is capable to characterize the process of sand production in gas hydrate-bearing sediments. The numerical simulator is developed by introducing the newly...
2 CitationsSource
#1Jingyi Chen (JLU: Jilin University)
#2Tianfu Xu (JLU: Jilin University)H-Index: 31
Last. Xu Liang (JLU: Jilin University)H-Index: 1
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Abstract Direct heat production by double wells is widely used to extract thermal energy from geothermal reservoirs. However, geothermal water is often type of brine with high dissolved salts. Injection and extraction of the geothermal fluid may cause strong chemical reactions, leading to scaling in the wellbore and reservoir. Such process was seldom considered in the heat production optimization. This study numerically investigated the mechanism of chemical damage to the reservoir in the Zhacan...
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#1Keqi Bei (JLU: Jilin University)H-Index: 2
#2Tianfu Xu (JLU: Jilin University)H-Index: 31
Last. Hailong Tian (JLU: Jilin University)H-Index: 10
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Abstract In shallow marine sediments, cold seeps of methane fluid is a widely observed phenomenon, which will lead to a series of biogeochemical reactions. These processes will change the pore water environment and trigger the formation of authigenic minerals. In this study, based on the data from the site GC10 in the NE South China Sea, numerical simulation studies were conducted to investigate the relative biogeochemical processes induced by methane leakage. The results of simulations show tha...
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#1Tianfu Xu (JLU: Jilin University)H-Index: 31
#2Fengyu Li (JLU: Jilin University)H-Index: 1
Last. Zhenjiao Jiang (JLU: Jilin University)H-Index: 5
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Shallow geothermal energy is stable and clean. Using a heat pump to produce groundwater and realize heating and cooling can effectively prevent haze and reduce energy consumption. To reduce enginee...
1 CitationsSource
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