1. Full name: Tran Trong Thang              2. Sex: Male

3. Date of birth: November 21st, 1969     4. Place of birth: Bac Giang, Vietnam

5. Admission decision number: 2875/QĐ-ĐHKHTN dated August 7th, 2015 by VNU Director.

6. Changes in academic process: During the study process, the PhD student had made the changes and was accepted by the university according to the following decisions: Decision on extension of the time for training and thesis defense No. 4735/QD-ĐHKHTN dated December 28, 2018; Decision on extension of the time for training and thesis defense No. 569/QD-ĐHKHTN dated February 14, 2020; Decision on adjusting the title of doctoral thesis No. 3056/QD-ĐHKHTN dated September 25, 2019 of the Rector of the University of Natural Sciences, VNU.

7. Official thesis title: The energy potential of the Hung Ha - Quynh Phu geothermal resource in relation to the geological and tectonic characteristics of the area.

8. Major: Geology                                                         9. Code: 9440201.01

10. Supervisors:

Assoc. Prof. Dr. Vu Van Tich, Vietnam National University, Hanoi (VNU)

Assoc. Prof. Dr. Dang Mai, VNU University of Science

11. Summary of the new findings of the thesis

- Identified the heat source, geothermal water transmission channel, geothermal reservoir and thermal solution of the Hung Ha - Quynh Phu geothermal system.

- The relatively high geothermal gradient in this area is due to the metamorphic rocks lying deep below, outcropping along the Red River shear zone.

- The temperature of Hung Ha - Quynh Phu geothermal reservoir is calculated following the thermal fluid chemical geothermometer is 1480C, which is consistent with the temperature following to the geothermal gradient in the study area.

- The conceptual model of the geothermal system is a very important step to systematically understand the Hung Ha - Quynh Phu geothermal system and has directional significance for further studies.

- The energy potential of the secondary geothermal reservoir is assessed by the energy that can be extracted from the hot water mass in the Pleistocene aquifer in the study area. This volume of hot water can be easily exploited for direct geothermal applications.

- The geothermal potential in the deep reservoir is estimated to be able to construct the geothermal power plant with a capacity of 13.1 MWe in 30 years.

- Establish a data set including faults, magmatic and metamorphic activities, aquifer and auitard layers, type of mineral water, temperature of geothermal reservoir, manifestation mechanism and the scale of development for a geothermal resource in the Red River delta.

12. Practical applicability, if any:

- Regarding direct geothermal applications: With the energy potential of a large volume of hot water at a shallow depth, there is no need to pay for exploration, people can easily exploit it for direct applications such as bathing, swimming pool, physiotherapy, aquaculture, large-scale livestock and poultry farming.

- About power generation application: Hung Ha - Quynh Phu geothermal prospect can be exploited for the construction of geothermal power plants with a capacity of about 13 MW.

13. Further research directions, if any

- Using geophysical methods, especially the Magnetotellurics, to determine the boundary, size and shape of the deep geothermal basin.

- It is necessary to drill thermal gradient wells to get more realistic geothermal gradient in this geothermal field and this is also the beginning step of exploration towards exploiting this geothermal source.

- Following this way, it is possible to study and evaluate other geothermal sources in the Red River delta as well as other geothermal sources in Vietnam.

14. Thesis-related publications:

[1] Vu Van Tich and Tran Trong Thang (2015), “Active Faults and Geothermal Potential in Vietnam: a Case Study in Uva Area, Dien Bien Phu Basin, Along Dien Bien -Lai Chau Fault”, Proceedings World Geothermal Congress, Melbourne, Australia.

[2] Tran Trong Thang, Nguyen Thac Cuong and Pham Xuan Anh (2016), “Thermal fluid characteristics of geothermal prospects in The North Central Vietnam and their potential for power generation”, Proceedings The 11th Asian Geothermal Symposium, Chiangmai, Thailand.

[3] Tran Trong Thang, Vu Van Tich, Dang Mai, Hoang Van Hiep, Pham Hung Thanh and Pham Xuan Anh (2016), “Some results of energy potential assessment of geothermal prospects in the Northern midland and mountainous areas of Vietnam”, VNU Journal of Science: Environmental and Earth Science, Vol. 32, No.2S, p225-235.

[4] Tran Trong Thang, Nguyen Trong Hien, Vu Hong Dang and Nguyen Tien Quang (2018), “General assessment for potential of ground source heatpump instalation in the Red River delta, Vietnam”, Proceedings of Grand Renewable Energy, Pacifico Yokohama, Yokohama, Japan.

[5] Tran Trong Thang, Tran Van Mien, Nguyen Trong Hien, Nguyen Cao Cuong, Vu Hong Dang and Nguyen Tien Quang (2018), “Estimate of enhanced geothermal system (EGS) potential in mainland Red River basin, Vietnam”, Proceedings The 12th Asian Geothermal Symposium, Daejeon, Korea.

[6] Tran Trong Thang and Nguyen Thac Cuong (2020), “An Overview on Geothermal Potential Assessment and Geothermal Development in Vietnam”, Proceedings World Geothermal Congress 2020. Reykjavik, Iceland.

[7] Tran Trong Thang, Vu Van Tich, Phạm Xuan Anh and Hoang Van Hiep (2020), “Quynh Phu – Hung Ha Geothermal System in Red River Delta, Vietnam: Geothermal Potential and Conceptual Model”, Proceedings World Geothermal Congress, Reykjavik, Iceland.