The Prediction for Favorable Areas of Hot Dry Rock Exploration in the Northern Part of Songliao Basin

2012 ◽  
Vol 616-618 ◽  
pp. 109-115
Author(s):  
Xiao Xiong Wu ◽  
Shang Ming Shi ◽  
Pan Zhao ◽  
Hua Bin Wei ◽  
Liang Zhang ◽  
...  
Keyword(s):  
Special Kind ◽  
High Heat ◽  
Wide Distribution ◽  
Geothermal Field ◽  
Songliao Basin ◽  
Geothermal Resources ◽  
The Sustainable Development ◽  
Hot Dry Rock ◽  
Shallow Layer ◽  
Production Water

After years of research about the geothermal resources in the northern part of Songliao Basin, preliminary results have been achieved in the exploration and development of middle-shallow layer geothermal resources and oilfield production water geothermal resources. The Hot Dry Rock is as a special kind of geothermal resources, it shows the advantages of high heat, wide distribution, unaffected by the season and natural condition, etc. The exploration and utilization of the Hot Dry Rock in the deep of the northern part of Songliao Basin is very important for the energy conservation and emission reductions and the sustainable development of Daqing Oilfield which heat consumption is very higher in oil production. This article analyzed the possibility of Hot Dry Rock existing in the northern part of Songliao Basin through the study of crust structure, structure and geothermal field and predicted the favorable areas of Hot Dry Rock exploration. It indicates the direction of next step for Hot Dry Rock exploration and utilization.

Analysis of Metallogenic Conditions of Geothermal Resources in Heiyu Lake of Daqing

2012 ◽  
Vol 550-553 ◽  
pp. 2472-2477
Author(s):  
Yu Chun Bai ◽  
Yong Li Li ◽  
Fu Li Qi ◽  
Feng Long Zhang
Keyword(s):  
Transitional Zone ◽  
Geological Structure ◽  
Major Elements ◽  
Geothermal Field ◽  
Geophysical Data ◽  
Geothermal Resources ◽  
Lake Zone ◽  
Geological Conditions ◽  
Geothermal Drilling ◽  
Geological Background

Heiyu Lake zone of Daqing is located in the southwest hollow borderland of Heiyu Lake and on the arching transitional zone of Daqing placanticline. Based on the geological background of Heiyu Lake, this paper analyzes the landform, the regional geological structure, the formation lithology and the irruptive rock and other metallogenic conditions in detail. The indispensable geological conditions for forming geothermal field in layers were summed up. Combining with the development characteristics and geophysical data of formation, the bore hole site of geothermal well and target stratum were ascertained. The four major elements of forming geothermal resources in this region were confirmed by carrying out geothermal drilling.

scholarly journals Determining the Recoverable Geothermal Resources Using a Numerical Thermo-Hydraulic Coupled Modeling in Geothermal Reservoirs

2022 ◽  
Vol 9 ◽  
Author(s):  
Yifan Fan ◽  
Shikuan Zhang ◽  
Yonghui Huang ◽  
Zhonghe Pang ◽  
Hongyan Li
Keyword(s):  
Temperature Drop ◽  
Geothermal Field ◽  
Geothermal Reservoir ◽  
Recovery Factor ◽  
Coupled Modeling ◽  
Geothermal Resources ◽  
Geothermal Heating ◽  
Sustainable Exploitation ◽  
Well Spacing ◽  
Recoverable Resources

Recoverable geothermal resources are very important for geothermal development and utilization. Generally, the recovery factor is a measure of available geothermal resources in a geothermal field. However, it has been a pre-determined ratio in practice and sustainable utilization of geothermal resources was not considered in the previous calculation of recoverable resources. In this work, we have attempted to develop a method to calculate recoverable geothermal resources based on a numerical thermo-hydraulic coupled modeling of a geothermal reservoir under exploitation, with an assumption of sustainability. Taking a geothermal reservoir as an example, we demonstrate the effectiveness of the method. The recoverable geothermal resources are 6.85 × 1018 J assuming a lifetime of 100 years in a well doublet pattern for geothermal heating. We further discuss the influence of well spacing on the recoverable resources. It is found that 600 m is the optimal well spacing with maximum extracted energy that conforms to the limit of the pressure drop and no temperature drop in the production well. Under the uniform well distribution pattern for sustainable exploitation, the recovery factor is 26.2%, which is higher than the previous value of 15% when depending only on lithology. The proposed method for calculating the recoverable geothermal resources is instructive for making decisions for sustainable exploitation.

Hot dry rock geothermal potential of the Xujiaweizi area in Songliao Basin, northeastern China

2016 ◽  
Vol 75 (6) ◽  
Author(s):  
Liangliang Guo ◽  
Yanjun Zhang ◽  
Ziwang Yu ◽  
Zhongjun Hu ◽  
Chengyu Lan ◽  
...  
Keyword(s):  
Northeastern China ◽  
Songliao Basin ◽  
Hot Dry Rock ◽  
Geothermal Potential

scholarly journals Integration of 3D Geological Modeling and Geothermal Field Analysis for the Evaluation of Geothermal Reserves in the Northwest of Beijing Plain, China

Water ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 638
Author(s):  
Zhenzhou Zhu ◽  
Xiaodong Lei ◽  
Nengxiong Xu ◽  
Dongyue Shao ◽  
Xingyu Jiang ◽  
...  
Keyword(s):  
Heat Flow ◽  
Three Dimensional ◽  
Scientific Basis ◽  
Geothermal Field ◽  
Field Analysis ◽  
Geological Modeling ◽  
Geothermal Resources ◽  
3D Geological Modeling ◽  
Beijing Plain ◽  
Distribution Of Resources

With the increasing demand for energy and the growing concern for atmospheric pollution in Beijing, China, the exploitation and utilization of geothermal resources are becoming more desirable. The study combined three-dimensional geological modeling with geothermal field analysis to make clear the potential and distribution of geothermal resources in the northwest of the Beijing plain, which could provide a scientific basis for rational utilization in the study area. Based on the analysis of the geological data and geothermal conditions, we created a 3D geological model of the study area, and then added isothermal surfaces into the model and analyzed the heat flow to enhance the understanding of the present geothermal field. After that, the volumes of different temperature intervals of heat reservoirs were calculated accurately and automatically by the integration of the model and the isothermal surfaces. Finally, the geothermal reserves were calculated by the improved volumetric method, and the distribution of resources was analyzed comprehensively. The results showed that, in the study area, the heat flow values ranged from 49 to 99 mW m−2, and the average elevations of 25 °C, 40 °C, and 60 °C isothermal surfaces were at −415 m, −1282 m, and −2613 m, respectively. The geothermal reserves were 5.42 × 1019 J and the volume of the heat reservoir was 4.88 × 1011 m3. The geothermal resources of the study area had good potential and could support local green development.

scholarly journals The thermal state and geothermal energy accumulation mechanism in the Xiong’an New Area, China

2019 ◽  
Vol 37 (3) ◽  
pp. 1039-1052 ◽  
Author(s):  
Yue Gaofan ◽  
Wang Guiling ◽  
Ma Feng ◽  
Zhang Wei ◽  
Yang Zhijie
Keyword(s):  
Heat Conduction ◽  
Geothermal Energy ◽  
Thermal State ◽  
Element Model ◽  
Geothermal Field ◽  
Geothermal Resources ◽  
Energy Accumulation ◽  
Geological Conditions ◽  
Accumulation Mechanism ◽  
Deep Fractures

There are abundant geothermal resources in the Xiong’an New Area, China. However, the thermal state and geothermal energy accumulation mechanism are not clear. Based on the geological conditions and the characteristics of the present geothermal field, a 2D model was established to analyze the process of mantle-derived heat conduction and to predict the distribution of the deep geothermal field. We calculated the terrestrial heat flow for the Rongcheng uplift and Niutuozhen uplift to be 64 and 75 mW/m2, respectively. The geothermal resources in this area are controlled by a four-element model comprising heat conduction, structural uplift, large deep fractures, and convection within the reservoir.

Geothermal resources characterization of two areas in southern Tuscany

2020 ◽  
Author(s):  
Eugenio Trumpy ◽  
Gianluca Gola ◽  
Alessandro Santilano ◽  
Adele Manzella ◽  
Matteo Brambilla ◽  
...  
Keyword(s):  
Dynamic Models ◽  
Fluid Dynamic ◽  
Dynamic Modelling ◽  
Geothermal Field ◽  
Joint Analysis ◽  
Geothermal Resources ◽  
Flow Measurements ◽  
North East ◽  
Geothermal Potential ◽  
Technical Potential

<p>Based on a joint analysis of geothermal indicators (e.g. temperature map at different depth, surface heat flux) and practical features (e.g. restricted areas, existing research lease), two promising areas in southern Tuscany were identified to perform a more detailed geothermal resource characterization. An area is located on the north-east of the Larderello-Travale geothermal field, and the other one is located on the west of the Mt. Amiata geothermal field.</p><p>A quantitative geothermal resources assessment was performed in the aforementioned areas of Tuscany by solving numerical thermo-fluid dynamic models and by computing the geothermal potential using the ‘ThermoGIS’ software, as further developed for the Italian case (Trumpy et al., 2016).</p><p>First of all, geological and geophysical data required for geological and thermo-fluid dynamic modelling were collected and organised. The geological data were used to build a 3D geological model of the two areas of interest suitable for numerical simulations. Static temperature data gathered from the Italian National Geothermal Database together with site-specific heat flow measurements were used to calibrate the simulated steady state temperature distribution.</p><p>The geothermal potential computed by integrating geological, thermal and petro-physical information implementing the volume method used in ThermoGIS provided estimates of the heat in place and the geothermal technical potential maps. The resulting technical potential in the area close to Larderello –Travale is 330 MW<sub>e</sub> and in the Mt. Amiata sector is 50MW<sub>e</sub>.</p><p>References</p><p>Trumpy E., Botteghi S., Caiozzi F., Donato A., Gola G., Montanari D., Pluymaekers M., Santilano A., Van Wees, J.D., Manzella A. Geothermal potential assessment for a low carbon strategy: a new systematic approach applied in southern Italy. Energy 103, 167-181, 2016.</p>

Feasibility, Design and authorization of a zero-emission Geothermal Power Plant in Italy; Case Study: “Montenero” Project

2020 ◽  
Author(s):  
Paolo Basile ◽  
Roberto Brogi ◽  
Favaro Lorenzo ◽  
Tiziana Mazzoni
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Geothermal Field ◽  
Geothermal Reservoir ◽  
Gas Content ◽  
Geothermal Resources ◽  
Geothermal Fluid ◽  
Geothermal Power Plant ◽  
Green Power ◽  
Geothermal Power

<p><span><span>Social consensus is a </span><span>condition precedent for any intervention having an impact on the territory, such as geothermal power plants. Therefore, private investors studied and proposed innovative solution for the exploitation of the medium enthalpy geothermal resource, with “zero emissions” in atmosphere, with the target of minimizing its environmental impact. “Montenero” project, developed by GESTO Italia, complies with this precondition.</span></span></p><p><span><span>The area covered b</span><span>y the exploration and exploitation permit is located on the northern edge of the great geothermal anomaly of Mt. Amiata (Tuscany), about 10 km north of the geothermal field of Bagnore, included in the homonymous Concession of Enel Green Power.</span></span></p><p><span><span>The geological - structural setting of the area around the inactive volc</span><span>ano of Mt. Amiata has been characterized by researches for the geothermal field of Bagnore, carried out by Enel Green Power over the years. The geothermal reservoir is present in the limestone and evaporitic rocks of the “Falda Toscana”, below which stands the Metamorphic Basement, as testified by the wells of geothermal field of Bagnore. The foreseen reservoir temperature at the target depth of 1.800 m is 140 °C, with an incondensable gas content of 1,8% by weight.</span></span></p><p><span><span>The project was presented to the authorities in 2013 and it is </span><span>now undergoing exploitation authorization and features the construction of a 5 MW ORC (Organic Ranking Circle) binary power plant. The plant is fed by three production wells for a total mass flow rate of 700 t/h. The geothermal fluid is pumped by three ESPs (Electrical Submersible Pump) keeping the geothermal fluid in liquid state from the extraction through the heat exchangers to its final reinjection three wells.</span></span></p><p><span><span>The reinjection temperature is 70 °C and the circuit pressure is maintained above the </span><span>incondensable gas bubble pressure, i.e. 40 bar, condition which prevents also the formation of calcium carbonate scaling. The confinement of the geothermal fluid in a “closed loop system” is an important advantage from the environmental point of view: possible pollutants presented inside the geothermal fluid are not released into the environment and are directly reinjected in geothermal reservoir.</span></span></p><p><span><span>The </span><span>environmental authorization procedure (obtained) has taken into account all the environmental aspects concerning the natural matrices (air, water, ground, ...) potentially affected by the activities needed for the development, construction and operation of “Montenero” ORC geothermal power plant. A numerical modeling was designed and applied in order to estimate the effect of the cultivation activity and to assess the reinjection overpressure (seismic effect evaluation). The project also follows the “best practices” implemented in Italy by the “Guidelines for the usage of medium and high enthalpy geothermal resources” prepared in cooperation between the Ministry of Economic Development and the Ministry of the Environment.</span></span></p>

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