This page has only limited features, please log in for full access.
Operational optimization is the essential factor to maximize the heat production from the thermal reservoir. Well spacing and the arrangement of the production well are the two most pivotal factors for the thermal reservoir which can ensure long-term production at economically acceptable levels. The Xiong'an geothermal area, located in the western margin of the Bohai Bay Basin, is the most developed region of the carbonate stratum and also is one of the areas that have the greatest hydrothermal geothermal resources in China. In this study, based on the temperature data of the carbonate formation and thermosphysical data from the core samples measurement, a three dimensional thermo-hydraulic coupled numerical model was established to assess the geothermal potential of the carbonate reservoir and the effect of different exploitation schemes (mainly involved the injection fluid temperature, injection mass flow rate and lateral well distance) on the thermal reservoir performance was analyzed over a period of 40 years. The effect of permeability heterogeneity on the thermal reservoir performance was also discussed as a case study. The calculation results were then analyzed on the basis of the output temperature decline curves and the cumulative energy production over the entire period from the production well. Among the three important influence factors on the carbonate reservoir performance, the injection temperature has the most significant effect on the energy production rate, followed by the injection mass flow rate and the lateral well spacing.
Zhuting Wang; Chao Zhang; Guangzheng Jiang; Yibao Wang; Shengbiao Hu. Effect of different exploitation schemes on production performance from the carbonate reservoir: A case study in Xiong'an new area. Journal of Cleaner Production 2021, 314, 128050 .
AMA StyleZhuting Wang, Chao Zhang, Guangzheng Jiang, Yibao Wang, Shengbiao Hu. Effect of different exploitation schemes on production performance from the carbonate reservoir: A case study in Xiong'an new area. Journal of Cleaner Production. 2021; 314 ():128050.
Chicago/Turabian StyleZhuting Wang; Chao Zhang; Guangzheng Jiang; Yibao Wang; Shengbiao Hu. 2021. "Effect of different exploitation schemes on production performance from the carbonate reservoir: A case study in Xiong'an new area." Journal of Cleaner Production 314, no. : 128050.
The thermal conductivity of a stratum is a key factor to study the deep temperature distribution and the thermal structure of the basin. A huge expense of core sampling from boreholes, especially in offshore areas, makes it expensive to directly test stratum samples. Therefore, the use of well logging (the gamma-ray, the neutron porosity, and the temperature) to estimate the thermal conductivity of the samples obtained from boreholes could be a good alternative. In this study, we measured the thermal conductivity of 72 samples obtained from an offshore area as references. When the stratum is considered to be a shale–sand–fluid model, the thermal conductivity can be calculated based on the mixing models (the geometric mean and the square root mean). The contents of the shale and the sand were derived from the natural gamma-ray logs, and the content of the fluid (porosity) was derived from the neutron porosity logs. The temperature corrections of the thermal conductivity were performed for the solid component and the fluid component separately. By comparing with the measured data, the thermal conductivity predicted based on the square root model showed good consistency. This technique is low-cost and has great potential to be used as an application method to obtain the thermal conductivity for geothermal research.
Jie Hu; Guangzheng Jiang; Yibo Wang; Shengbiao Hu. Thermal Conductivity Estimation Based on Well Logging. Mathematics 2021, 9, 1176 .
AMA StyleJie Hu, Guangzheng Jiang, Yibo Wang, Shengbiao Hu. Thermal Conductivity Estimation Based on Well Logging. Mathematics. 2021; 9 (11):1176.
Chicago/Turabian StyleJie Hu; Guangzheng Jiang; Yibo Wang; Shengbiao Hu. 2021. "Thermal Conductivity Estimation Based on Well Logging." Mathematics 9, no. 11: 1176.
Heat flow and thermal state complement seismic information and provide strong constraints on the thickness, geophysical properties, and tectonic evolution of the lithosphere. The North Jiangsu Basin (NJB) is located in the Lower Yangtze Craton as a wedge block of ancient plate boundary-adjacent to the southeast corner of the North China Craton experienced destruction in the Late Mesozoic, and it is of great interest to learn the geothermal characteristics of the basin. We present 71 new heat flow measurements derived from temperature logs and detailed thermal conductivity measurements of 189 dry core samples and 24 outcrop samples. We analyze these new data in combination with published data to plot the temperature gradient and heat flow distribution maps. The results show that: (1) temperature gradient values in the NJB are in the 21.5–59.2 °C km−1 range, with a mean value of 30.2 ± 6.5 °C km−1; (2) heat flow values are in the 45.7–109.7 mW m−2 range, with a mean value of 67.9 ± 7.7 mW m−2; (3) the highest temperature gradient and heat flow value is located in or around the Jianhu Uplift, and thermal refraction is the leading cause; and (4) the destruction of the North China Craton at the end of the Late Mesozoic was likely to affect the NJB, and the unified deep dynamic mechanism makes the NJB and the Bohai Bay Basin now in a similar thermal state.
Yibo Wang; Lijuan Wang; Di Hu; Junpeng Guan; Yang Bai; Zhuting Wang; Guangzheng Jiang; Jie Hu; Boning Tang; Chuanqing Zhu; Shengbiao Hu. The present-day geothermal regime of the North Jiangsu Basin, East China. Geothermics 2020, 88, 101829 .
AMA StyleYibo Wang, Lijuan Wang, Di Hu, Junpeng Guan, Yang Bai, Zhuting Wang, Guangzheng Jiang, Jie Hu, Boning Tang, Chuanqing Zhu, Shengbiao Hu. The present-day geothermal regime of the North Jiangsu Basin, East China. Geothermics. 2020; 88 ():101829.
Chicago/Turabian StyleYibo Wang; Lijuan Wang; Di Hu; Junpeng Guan; Yang Bai; Zhuting Wang; Guangzheng Jiang; Jie Hu; Boning Tang; Chuanqing Zhu; Shengbiao Hu. 2020. "The present-day geothermal regime of the North Jiangsu Basin, East China." Geothermics 88, no. : 101829.
We present new heat flow and heat production data to constrain the lithospheric thermal structure along the southern Tan-Lu Fault Zone (STLFZ), a continuous active deep crustal fault zone in East Asia, and use these thermal data to infer how the thermal structure of the STLFZ influences regional focal depths. We report five new high-quality heat flow measurements derived from temperature–depth profiles at five well sites and detailed thermal conductivity measurements of 13 outcrop samples and 115 dry core samples from five wells along the STLFZ. We analyze these new data in combination with published data to derive a thermal profile along the STLFZ and map the 350 °C isotherm along the STLFZ, which correlates well with the maximum depth of recorded seismicity. The results indicate that: (1) the thermal gradient along the STLFZ increase from 22.2 °C km–1 in the south to 34.8 °C km–1 in the north; (2) heat flow values are in the 44.0–75.4 mW m–2 range along the STLFZ, with a mean value of 59.9 ± 10.5 mW m–2; (3) the highest heat flow value is located in Lu-Zong Basin, with extremely high radioactive heat production of 15–20 μW m–3 in the upper crust that may be related to local ore bodies; and (4) the bottom boundary of the shallow-earthquake seismic zone in the STLFZ coincides with the 350 °C isotherm.
Yibo Wang; Shengbiao Hu; Zhuting Wang; Guangzheng Jiang; Di Hu; Kesong Zhang; Peng Gao; Jie Hu; Tao Zhang. Heat flow, heat production, thermal structure and its tectonic implication of the southern Tan-Lu Fault Zone, East–Central China. Geothermics 2019, 82, 254 -266.
AMA StyleYibo Wang, Shengbiao Hu, Zhuting Wang, Guangzheng Jiang, Di Hu, Kesong Zhang, Peng Gao, Jie Hu, Tao Zhang. Heat flow, heat production, thermal structure and its tectonic implication of the southern Tan-Lu Fault Zone, East–Central China. Geothermics. 2019; 82 ():254-266.
Chicago/Turabian StyleYibo Wang; Shengbiao Hu; Zhuting Wang; Guangzheng Jiang; Di Hu; Kesong Zhang; Peng Gao; Jie Hu; Tao Zhang. 2019. "Heat flow, heat production, thermal structure and its tectonic implication of the southern Tan-Lu Fault Zone, East–Central China." Geothermics 82, no. : 254-266.
Update the heat flow data of the continental China Discuss the heat flow characteristics of the various tectonic units Reveal the heat flow distribution pattern of continental China
Guangzheng Jiang; Shengbiao Hu; Yizuo Shi; Chao Zhang; Zhuting Wang; Di Hu. Terrestrial heat flow of continental China: Updated dataset and tectonic implications. Tectonophysics 2019, 753, 36 -48.
AMA StyleGuangzheng Jiang, Shengbiao Hu, Yizuo Shi, Chao Zhang, Zhuting Wang, Di Hu. Terrestrial heat flow of continental China: Updated dataset and tectonic implications. Tectonophysics. 2019; 753 ():36-48.
Chicago/Turabian StyleGuangzheng Jiang; Shengbiao Hu; Yizuo Shi; Chao Zhang; Zhuting Wang; Di Hu. 2019. "Terrestrial heat flow of continental China: Updated dataset and tectonic implications." Tectonophysics 753, no. : 36-48.
Enhanced Geothermal System (EGS) is an essential approach to entrap heat from deep hot dry rock (HDR), a low-carbon and renewable energy. Understanding the long-term productivity performance of the EGS and its sensitivity to different reservoir parameters can help to achieve efficiently the optimized exploitation of a designated reservoir. The Qiabuqia geothermal area, located in the northeastern margin of the Gonghe basin, Tibetan Plateau, is one of the areas that have the greatest HDR geothermal resources exploration and development potential in China so far. Based on the geological data of the GR1 borehole at the Qiabuqia geothermal area, northeast Tibetan plateau, a 3D thermo-hydraulic coupled numerical model is established in this study with the method of finite element to assess the heat production potential. The mathematical model presented in this study is validated by the analytical solution of a single fracture model. By varying several key reservoir parameters (e.g. thermal conductivity, permeability, porosity, injection mass flow rate, injection fluid temperature, and lateral well spacing), the sensitivity analysis of the long-term production temperature and electric power rate evolution is implemented. The simulation results indicate that in the basal granitic reservoir with a depth of 2900 m ∼ 3400 m and a corresponding initial temperature of 160 oC ∼180 oC, the temperature produced and effective electric power can maintain at 173.4 oC and 2.48 MW for the first 7 years of simulation under the combination of 50 kg/s of injection flow rate, 60 oC of the injection fluid temperature and a 300 m of lateral well spacing. At the end of the 40-year operation period, the outlet temperature decrease to 162.8 oC, as well as a drop of 9.7% in the electric power. Sensitivity analysis with the method of ‘One Factor At a time’ suggests that the permeability is the parameter that affects the production temperature and energy extraction the most compared with the thermal conductivity and porosity. For a specified geothermal field with a known distribution of permeability, thermal conductivity and porosity, the injection mass flow rate has the most significant effect on the electric power output, followed by the injection temperature and the lateral well spacing. The results from the complete factorial experimental design simulation suggest the electric power performance of the reservoir can be increased by a reasonable multi-parameter combination. For a doublet well extraction system, based on the Qiabuqia geothermal area, a combination of 70 kg/s injection flow rate, 60 oC injection temperature, and 500 m lateral well spacing can attain an effective electric power output of 3.47-3.50 MW. Thus, this study compares the different heat mining performance potential under various reservoir parameters and their combinations through the aforementioned sensitivity analysis and can greatly promote the establishment and development of EGS program in the Qiabuqia geothermal area in the future.
Chao Zhang; Guangzheng Jiang; Xiaofeng Jia; Shengtao Li; Shengsheng Zhang; Di Hu; Shengbiao Hu; Yibo Wang. Parametric study of the production performance of an enhanced geothermal system: A case study at the Qiabuqia geothermal area, northeast Tibetan plateau. Renewable Energy 2018, 132, 959 -978.
AMA StyleChao Zhang, Guangzheng Jiang, Xiaofeng Jia, Shengtao Li, Shengsheng Zhang, Di Hu, Shengbiao Hu, Yibo Wang. Parametric study of the production performance of an enhanced geothermal system: A case study at the Qiabuqia geothermal area, northeast Tibetan plateau. Renewable Energy. 2018; 132 ():959-978.
Chicago/Turabian StyleChao Zhang; Guangzheng Jiang; Xiaofeng Jia; Shengtao Li; Shengsheng Zhang; Di Hu; Shengbiao Hu; Yibo Wang. 2018. "Parametric study of the production performance of an enhanced geothermal system: A case study at the Qiabuqia geothermal area, northeast Tibetan plateau." Renewable Energy 132, no. : 959-978.
Peng Gao; Qianfeng Qiu; Guangzheng Jiang; Chao Zhang; Shengbiao Hu; Yuhong Lei; Xiangzeng Wang. Present-day geothermal characteristics of the Ordos Basin, western North China Craton: new findings from deep borehole steady-state temperature measurements. Geophysical Journal International 2018, 1 .
AMA StylePeng Gao, Qianfeng Qiu, Guangzheng Jiang, Chao Zhang, Shengbiao Hu, Yuhong Lei, Xiangzeng Wang. Present-day geothermal characteristics of the Ordos Basin, western North China Craton: new findings from deep borehole steady-state temperature measurements. Geophysical Journal International. 2018; ():1.
Chicago/Turabian StylePeng Gao; Qianfeng Qiu; Guangzheng Jiang; Chao Zhang; Shengbiao Hu; Yuhong Lei; Xiangzeng Wang. 2018. "Present-day geothermal characteristics of the Ordos Basin, western North China Craton: new findings from deep borehole steady-state temperature measurements." Geophysical Journal International , no. : 1.
Chao Zhang; Guangzheng Jiang; Yizuo Shi; Zhuting Wang; Yi Wang; Shengtao Li; Xiaofeng Jia; Shengbiao Hu. Terrestrial heat flow and crustal thermal structure of the Gonghe-Guide area, northeastern Qinghai-Tibetan plateau. Geothermics 2018, 72, 182 -192.
AMA StyleChao Zhang, Guangzheng Jiang, Yizuo Shi, Zhuting Wang, Yi Wang, Shengtao Li, Xiaofeng Jia, Shengbiao Hu. Terrestrial heat flow and crustal thermal structure of the Gonghe-Guide area, northeastern Qinghai-Tibetan plateau. Geothermics. 2018; 72 ():182-192.
Chicago/Turabian StyleChao Zhang; Guangzheng Jiang; Yizuo Shi; Zhuting Wang; Yi Wang; Shengtao Li; Xiaofeng Jia; Shengbiao Hu. 2018. "Terrestrial heat flow and crustal thermal structure of the Gonghe-Guide area, northeastern Qinghai-Tibetan plateau." Geothermics 72, no. : 182-192.
The Pearl River Mouth Basin, which is situated on the northern margin of the South China Sea, has attracted great attention not only because of its tectonic setting but also because of its abundant hydrocarbon resources. We have analyzed the Cenozoic tectonic subsidence history of 4 drilled wells and 43 artificial wells from the Zhu 1 Sub-basin of the Pearl River Mouth Basin by back-stripping, using newly interpreted seismic profiles. We also calculated the average tectonic subsidence rates of the four sags in the Zhu 1 Sub-basin. The rifting and post-rifting stages are separated by abrupt changes in the tectonic subsidence curves and average subsidence rates. In the eastern sags of the Zhu 1 Sub-basin, tectonic subsidence started to slow at ca. 30 Ma, compared with ca. 23.8 Ma in the western sags. This probably corresponds to the timing of break-up and suggests that rifting in the Pearl River Mouth Basin ended earlier in the eastern sags than in the western sags. Anomalously accelerated tectonic subsidence occurred at 17.5–16.4 Ma during the post-rifting stage, with average subsidence rates as high as 301.9 m/Myr. This distinguishes the Pearl River Mouth Basin from classical Atlantic passive continental marginal basins, which demonstrate exponentially decaying post-rift tectonic subsidence.
Xiaoyin Tang; Shuchun Yang; Junzhang Zhu; Zulie Long; Guangzheng Jiang; Shaopeng Huang; Shengbiao Hu. Tectonic subsidence of the Zhu 1 Sub-basin in the Pearl River Mouth Basin, northern South China Sea. Frontiers of Earth Science 2017, 11, 729 -739.
AMA StyleXiaoyin Tang, Shuchun Yang, Junzhang Zhu, Zulie Long, Guangzheng Jiang, Shaopeng Huang, Shengbiao Hu. Tectonic subsidence of the Zhu 1 Sub-basin in the Pearl River Mouth Basin, northern South China Sea. Frontiers of Earth Science. 2017; 11 (4):729-739.
Chicago/Turabian StyleXiaoyin Tang; Shuchun Yang; Junzhang Zhu; Zulie Long; Guangzheng Jiang; Shaopeng Huang; Shengbiao Hu. 2017. "Tectonic subsidence of the Zhu 1 Sub-basin in the Pearl River Mouth Basin, northern South China Sea." Frontiers of Earth Science 11, no. 4: 729-739.
This paper focuses on a dataset reflecting the potential for the development of enhanced geothermal systems (EGS) in continental China. Depth–temperature profiles, derived from surface heat flow, thermophysical parameters, the thickness of sedimentary layers, and ground surface temperatures, are the basis of EGS resource assessment. According to up-to-date 1230 pieces of heat flow data, we updated the heat flow measurements and depth–temperature distribution maps in continental China. Subsequently, the EGS resources were estimated using volume method with respect to various depth slices, temperature grades, and provinces, respectively. Results indicate that the total heat content within the depth of 3–10 km is 22.9 × 106 EJ (1 EJ = 1018 J), of which recoverable part is equivalent to 1.56 × 104 billion tons coal equivalent by the conservative recovery factor (2%). Under the assumption of 30-year-long production life, 10 °C reduction from the original rock temperature, and 2% as the recoverable factor, the production of electric power in continental China is estimated to be 4.56 × 106 MWe. On the basis of the calculation, we delineated four favorable targets for EGS resources exploration, including South and Northeast Tibet, West Yunnan (Tengchong), the southeast coast of China (Zhejiang, Fujian, and Guangdong), and Northeast China (Songliao Basin and Changbai Mountain).
Guangzheng Jiang; Weiwei Li; Song Rao; Yizuo Shi; Xiaoyin Tang; Chuanqing Zhu; Peng Gao; Yi Wang; Shengbiao Hu. Heat flow, depth–temperature, and assessment of the enhanced geothermal system (EGS) resource base of continental China. Environmental Earth Sciences 2016, 75, 1432 .
AMA StyleGuangzheng Jiang, Weiwei Li, Song Rao, Yizuo Shi, Xiaoyin Tang, Chuanqing Zhu, Peng Gao, Yi Wang, Shengbiao Hu. Heat flow, depth–temperature, and assessment of the enhanced geothermal system (EGS) resource base of continental China. Environmental Earth Sciences. 2016; 75 (22):1432.
Chicago/Turabian StyleGuangzheng Jiang; Weiwei Li; Song Rao; Yizuo Shi; Xiaoyin Tang; Chuanqing Zhu; Peng Gao; Yi Wang; Shengbiao Hu. 2016. "Heat flow, depth–temperature, and assessment of the enhanced geothermal system (EGS) resource base of continental China." Environmental Earth Sciences 75, no. 22: 1432.
Development and utilization of deep geothermal resources, especially a hot dry rock (HDR) geothermal resource, is beneficial for both economic and environmental consideration in oilfields. This study used data from multiple sources to assess the geothermal energy resource in the Daqing Oilfield. The temperature logs in boreholes (both shallow water wells and deep boreholes) and the drilling stem test temperature were used to create isothermal maps in depths. Upon the temperature field and thermophysical parameters of strata, the heat content was calculated by 1 km × 1 km × 0.1 km cells. The result shows that in the southeastern part of Daqing Oilfield, the temperature can reach 150 °C at a depth of 3 km. The heat content within 3–5 km is 24.28 × 1021 J, wherein 68.2% exceeded 150 °C. If the recovery factor was given by 2% and the lower limit of temperature was set to be 150 °C, the most conservative estimate for recoverable HDR geothermal resource was 0.33 × 1021 J. The uncertainties of the estimation are mainly contributed to by the temperature extrapolation and the physical parameter selections.
Guangzheng Jiang; Yi Wang; Yizuo Shi; Chao Zhang; Xiaoyin Tang; Shengbiao Hu. Estimate of Hot Dry Rock Geothermal Resource in Daqing Oilfield, Northeast China. Energies 2016, 9, 731 .
AMA StyleGuangzheng Jiang, Yi Wang, Yizuo Shi, Chao Zhang, Xiaoyin Tang, Shengbiao Hu. Estimate of Hot Dry Rock Geothermal Resource in Daqing Oilfield, Northeast China. Energies. 2016; 9 (10):731.
Chicago/Turabian StyleGuangzheng Jiang; Yi Wang; Yizuo Shi; Chao Zhang; Xiaoyin Tang; Shengbiao Hu. 2016. "Estimate of Hot Dry Rock Geothermal Resource in Daqing Oilfield, Northeast China." Energies 9, no. 10: 731.
Very few of heat flow data have come from the crystalline basement in the North China Craton but rather from boreholes in the sedimentary cover of oil-gas basins. Explorations for hot dry rock (HDR) geothermal resources and porphyry gold deposits in eastern China offer now valuable opportunities to study the terrestrial heat flow in the crystalline basement. In this study, we obtained continuous temperature logs from two boreholes (the LZ borehole with a depth of 3471 m and the DR borehole with a depth of 2179 m) located in the south-east margin of the North China Craton. The boreholes have experienced long shut-in times (442 days and 261 days for the LZ borehole and DR borehole, respectively); thus, it can be expected that the temperature conditions have re-equilibrated after drilling and drill-mud circulation. Rock thermal conductivity and radiogenic heat production were measured for 68 crystalline rock samples from these two boreholes. The measured heat-flow density was determined to be 71.8±2.3 mW m-2 (for the LZ borehole) and 91.5±1.2 mW m-2 (for the DR borehole). The heat flow for the LZ borehole is close to the value of 75 mW m-2 determined in the Chinese Continental Scientific Drilling main hole (CCSD MH), both being in the Sulu-Dabie orogenic belt and thus able to verify each other. The value for the DR borehole is higher than the above two values, which supports former high heat-flow values determined in the Bohai Bay Basin.
Guangzheng Jiang; Xiaoyin Tang; Song Rao; Peng Gao; Linyou Zhang; Ping Zhao; Shengbiao Hu. High-quality heat flow determination from the crystalline basement of the south-east margin of North China Craton. Journal of Asian Earth Sciences 2016, 118, 1 -10.
AMA StyleGuangzheng Jiang, Xiaoyin Tang, Song Rao, Peng Gao, Linyou Zhang, Ping Zhao, Shengbiao Hu. High-quality heat flow determination from the crystalline basement of the south-east margin of North China Craton. Journal of Asian Earth Sciences. 2016; 118 ():1-10.
Chicago/Turabian StyleGuangzheng Jiang; Xiaoyin Tang; Song Rao; Peng Gao; Linyou Zhang; Ping Zhao; Shengbiao Hu. 2016. "High-quality heat flow determination from the crystalline basement of the south-east margin of North China Craton." Journal of Asian Earth Sciences 118, no. : 1-10.