scholarly journals Hot dry rock geothermal resource potential in the Wudalianchi volcanic field, NE CHINA: Implications from geophysical exploration

2018 ◽  
Vol 37 (2) ◽  
pp. 663-676 ◽  
Author(s):  
Li Shengtao ◽  
Xu Tianfu ◽  
Zhang Senqi ◽  
Jia Xiaofeng ◽  
Tian Puyuan ◽  
...  
Keyword(s):  
Clean Energy ◽  
Volcanic Field ◽  
Heat Sources ◽  
Ambient Noise Tomography ◽  
Geothermal Resources ◽  
Resource Potential ◽  
Hot Dry Rock ◽  
Younger Age ◽  
Power Project ◽  
Development Prospects

Hot dry rock is regarded as the clean energy of the future and is an important part of geothermal resources, with great research value and development prospects. The Weishan volcano, located in the northern part of the Wudalianchi volcanic group, was formed in the Pleistocene, and its age is only (0.57–0.31) ± 0.05 Ma. This area has a geothermal setting similar to but a younger age than that of the Fenton Hill volcano (formed 1.40–1.10 Ma) where a hot dry rock power project has operated since 1973. In this study, we used ambient noise tomography and magnetotelluric sounding methods to investigate deep heat sources beneath the Weishan volcano. The results show good geothermal conditions for hot dry rock formation in this region. A cooling magma chamber that might be the hot dry rock heat source is indicated in the upper crust at 6.5–13 km depth, with a volume of ∼200 km3. Our study suggests that the monzonitic granites of the Indosinian Xiaohongshan unit, which lies beneath the Late Cretaceous Nenjiang Formation and the Neoproterozoic-Early Cambrian Beikuanhe Formation, should be the main target for further hot dry rock geothermal energy exploration and development.

The Development Prospects and Recommendations of China's Hot Dry Rock Development

2014 ◽  
Vol 521 ◽  
pp. 842-845 ◽  
Author(s):  
Da Tong Zhou ◽  
Zhi Ping Li
Keyword(s):  
Energy Demand ◽  
Energy Resource ◽  
Resource Depletion ◽  
Clean Energy ◽  
Developed Countries ◽  
Geothermal Resources ◽  
Continuous Growth ◽  
Hot Dry Rock ◽  
Distributed Energy Resource ◽  
Human Energy

With the continuous growth of human energy demand, a large number of people around the world increasingly concern about the exploitation of traditional fossil energy will face resource depletion and environmental pollution, scientists from various countries have been constantly exploring, trying to find renewable and non-contamination of clean energy. As a special geothermal resources, hot dry rock have attracted attention of many countries abroad as early as the 1980s and 1990s, which successfully constructed experimental hot dry rock power generation stations. In the situation of worlds traditional energy resources are much more costly and hard to develop, the hot dry rock, a widely distributed energy resource in China, we have the ability and need to be developed and utilized of it. This article describes the Chinese potential amount of hot dry rock resources and preferred areas of mining development, as well as developed countries hot dry rock technology research status and experiences, which can make some comments on the actual exploration and exploitation in China.

scholarly journals A Feasibility Analysis of Wind Power Project in the Hunza Valley of Pakistan

2021 ◽  
Vol 40 (3) ◽  
pp. 582-590
Author(s):  
Muhammad Amjad Khan ◽  
Salman Amin ◽  
Abdul Rauf Bhatti ◽  
Sheikh Saaqib Haroon ◽  
Intisar Ali Sajjad
Keyword(s):  
Wind Power ◽  
Power Plants ◽  
Clean Energy ◽  
Feasibility Analysis ◽  
Resource Potential ◽  
Wind Power Plants ◽  
Northern Areas ◽  
Energy Projects ◽  
Wind Resource ◽  
Power Project

Wind resource potential is strongly influenced by the exposure, orientation of the terrain and the wind direction. In Pakistan, the northern areas have very attractive sites for wind power plants. However, due to non-standardized masts installed, the collected data are not reliable. Due to the unreliable nature of available data, the investors normally avoid the investing in the wind power projects. Various software and tools have been used so far for the feasibility analysis but due to unreliable data, the proper feasibility analysis is still out of sight. To overcome this deficiency, a feasibility study of a wind power project in the Hunza Valley of Pakistan using reliable data is presented in this paper. For this purpose, the RETScreen is used by exploiting the standard NASA’s (National Aeronautics and Space Administration) database. Since the developing countries are facing problems in the development of wind projects, it is envisaged that this approach will give an easy way to launch new clean energy projects.

scholarly journals Geothermal resource exploration by using Numerical simulation and comprehensive geophysical method

2021 ◽  
Author(s):  
Yang Yang ◽  
Bin Xiong ◽  
Sanxi Peng ◽  
Ibrar Iqbal ◽  
Tianyu Zhang
Keyword(s):  
Detection Efficiency ◽  
Energy Resource ◽  
Clean Energy ◽  
Shanxi Province ◽  
Geothermal System ◽  
Exploratory Research ◽  
Geothermal Resource ◽  
Geothermal Resources ◽  
Transient Electromagnetic ◽  
Resistivity Model

Abstract Geothermal energy is an important renewable clean energy resource with high development and usage potential. Geothermal resources, on the other hand, are buried deep below, and mining hazards are significant. Geophysical investigation is frequently required to determine the depth and location of geothermal resources. The Transient Electromagnetic Method (TEM) and the Controlled Source Audio Frequency Magnetotellurics (CSAMT) have the highest detection efficiency and accuracy of all electromagnetic exploration methods. This article initially explains the algorithm theory of the finite difference technique before establishing a simplified geothermal system resistivity model. Established on the simplified resistivity model, a simulation analysis of the ability of CSAMT and TEM to distinguish target body faults at different resistivities and dip angles was performed, and the effectiveness and difference of the two methods in detecting typical geothermal resource targets was verified. A complete exploratory research of CSAMT and TEM was conducted in Huairen County, Shuozhou City, Shanxi Province, China, based on theoretical analysis. Both approaches can reflect the geoelectric structure of the survey region, demonstrating the efficacy of the two methods in detecting genuine geothermal resources.

scholarly journals In situ determination of heat flow in unconsolidated sediments

Geophysics ◽  
1981 ◽  
Vol 46 (1) ◽  
pp. 76-83 ◽  
Author(s):  
J. H. Sass ◽  
J. P. Kennelly ◽  
W. E. Wendt ◽  
T. H. Moses ◽  
J. P. Ziagos
Keyword(s):  
Heat Flow ◽  
Thermal Gradient ◽  
Equilibrium Temperature ◽  
Unconsolidated Sediments ◽  
Heat Sources ◽  
Geothermal Resources ◽  
Flow Measurements ◽  
Thermal Measurements

Subsurface thermal measurements are the most effective, least ambiguous tools for locating geothermal resources. Measurements of thermal gradient in the upper few tens of meters can delineate the major anomalies, but it is also desirable to combine these gradients with reliable estimates of thermal conductivity, to provide data on the energy flux and to constrain models of the heat sources responsible for the anomalies. Problems associated with such heat flow measurements include the economics of casing or grouting holes, the long waits and repeated visits necessary to obtain equilibrium temperature values, the possible legal liability arising from disturbance of aquifers, the hazards presented by pipes protruding from the ground, and the security problems associated with leaving cased holes open for periods of weeks to months.

Analysis of HDR Power Generation Technology

2012 ◽  
Vol 616-618 ◽  
pp. 1128-1132
Author(s):  
Yong Cun Guo ◽  
Gang Cheng ◽  
Kun Hu ◽  
Peng Yu Wang
Keyword(s):  
Power Generation ◽  
Fossil Fuels ◽  
Clean Energy ◽  
Geothermal Resources ◽  
Basic Principles ◽  
New Energy ◽  
Power Generation Technology ◽  
Basic Characteristics ◽  
Geographical Characteristics ◽  
Generation Technology

As human overexploitation of non-renewable fossil fuels such as mining resources, the global environment has been severely polluted and damaged, which also poses a threat to human's health. So it is full of demands for renewable and clean energy sources. At present R & D of new energy is also increasing emphasised around the world. HDR as a renewable clean geothermal resources, with large reserves, widely distributed, heat, environmentally friendly development, through the heat exchange technology for power generation, which has a strong potential value.To actively develop new energy and promote the application of HDR power generation technology,we start from the basic characteristics of the HDR, and explore the basic principles of HDR power generation, the key technologies and the development of economic conditions. Meanwhile combined with the geographical characteristics of the environment in China, from the perspective of integration of subject resources,finally we constructively put forward a three-stage strategy for HDR power generation development plan.

scholarly journals Existence of High Temperature Geothermal Resources in the Igneous Rock Regions of South China

2021 ◽  
Vol 9 ◽  
Author(s):  
Yiman Li ◽  
Jiao Tian ◽  
Yuanzhi Cheng ◽  
Guangzheng Jiang ◽  
Ying Zhang ◽  
...  
Keyword(s):  
High Temperature ◽  
Temperature Measurement ◽  
South China ◽  
Hot Springs ◽  
Hainan Island ◽  
Heat Sources ◽  
Geothermal Resources ◽  
Production Values ◽  
Temperature Heat ◽  
Borehole Temperature

Large areas of Yanshan period granites with high heat production values (3–10 μW/m3) and mantle plume around Hainan province co-exist in Igneous Rocks Regions of South China (IRRSC). Surface manifestations are mainly warm/hot springs with temperatures below 90 °C and no typical phenomenon of high temperature resources have been observed. The main objective of this paper is to discuss the existence of high temperature geothermal resources and their possible locations under this kind of geothermal and tectonic background by analysis of high temperature heat sources, borehole temperature measurement, and reservoir temperature estimation. Two possible partial melts of the magma chamber were detected as high temperature heat sources in the Southern Leizhou Peninsular and North Hainan Island at a depth of 8–15 km. Other low resistivity zones in the upper crust are more likely caused by fluid in the formations or faults but not high temperature heat sources. This was also verified by borehole temperature measurement in these two areas, with maximum formation temperatures of 211°C and 185°C found, respectively. Reservoir temperatures from fluid geothermometers show lower temperatures of between 110–160°C for typical geothermal fields over the IRRSC but not in the Southern Leizhou Peninsular and Northern Hainan Island. In all, high temperature geothermal resources may be found in the Southern Leizhou Peninsular and on Northern Hainan Island.

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