From Start To finish
$
Minimum amount
162
Days
Deposit term
$
Total invested
,
%
ROI
Introductory part
Geothermal energy is a natural, clean, renewable resource that can be used for power generation, heating, and cooling and can effectively replace oil, gas, and coal. In recent years, oil companies have made increasing efforts to develop geothermal energy using advanced technology. New technologies have not only reduced resource waste, but have also improved resource utilization levels on a large scale and in industry, and have helped achieve significant economic and social benefits
Mission
Based on the analysis of the state of development of geothermal energy of oil fields, resource potential, as well as modes of operation and use, we identify all the advantages and disadvantages of using geothermal resources of oil fields. Allocation of geothermal water resources is carried out simultaneously with the exploration and development of hydrocarbons in oil and gas bearing basins
Creating generators
Costs ofmetal
construction
Logistics
Workforce
System maintenance
Creating generators
Costs ofmetal
construction
Logistics
Workforce
System maintenance
Strategy
Produced water in an oil field is a geothermal resource that is extracted during hydrocarbon development. Oilfield produced water, also known as oilfield effluent, is water that is extracted along with oil from production wells. Hydrocarbon reservoirs are typically located in the earth's crust, with temperatures rising at greater depths, and because of this thermal conductivity resulting in relatively high reservoir temperatures. Moving with the oil, water in oil fields stores a lot of heat. The temperature of the produced water usually exceeds 40°C, which represents a tremendous amount of thermal energy. The geothermal energy of field produced water can be classified as medium temperature and low temperature geothermal resource according to the concept and classification of geothermal resources, the geothermal resource of the sedimentary basin in
according to the properties of the geological structure and hydrothermal geothermal resource according to its carrier. On the contrary, the carrier of the geothermal resource in the produced water in the field is water-oil-gas mixture, which mainly consists of water injected into the field. Consequently, this type of geothermal resource carried by produced oilfield water can be defined as the geothermal resource of produced oilfield water, a special medium- and low-temperature hydrothermal geothermal resource in sedimentary basins
INVESMENT
ANALYSIS Underneath the Chinese capital about 300 wells have been drilled about 3 kilometers deep, from which water heated to 70°C is pumped out. The planet's energy extracted from such depths is used for central heating of high-rise buildings and for maintaining the desired temperature in greenhouses.To cool rooms in summer our company uses horizontal heat exchangers installed not too deep in the soil, capable of cooling water in the system to 18-15°C. Exploration and development of hydrocarbons shows that sedimentary basins are rich not only in hydrocarbon resources, but also in medium-temperature and low-temperature geothermal resources.The latest assessment of geothermal resources of major oil and gas bearing basins shows that in the most resource-rich basins, the Bohai Bay Basin and the Sunliao Basin, the total geothermal resources in Daqing, Liaohe and Huabei fields are up to 11,012×1018 J, and the recoverable geothermal resources are up to 424×1018 J, equivalent to 3757×108 tons and 145×108 tons of standard coal respectively Calculation of geothermal resources is based on the volumetric method and calculation formulas : where, A- block area, m2; d- average block thickness, m; Φ- average reservoir porosity, %; tr- reservoir temperature, °C; tj- normal temperature zone temperature, °C; - reservoir rock density, kg/m3; Cc- specific heat capacity of reservoir rock, J/(kg-°C); - reservoir water density, kg/m3; Cw- specific heat of reservoir water, J/(kg-°C). It is well known that oil fields are both major producers and consumers of energy, and large amounts of gas, oil and coal are consumed annually for heating living quarters, thermal utilization of heavy oil, collection and transportation of oil, etc. Many technological activities consume large amounts of heat during oil production; for example, crude oil dewatering and transportation require heating, and especially heavy oil with higher viscosity needs to be heated to reduce its viscosity before being transported through the pipeline.According to statistics, the annual energy consumption of oil field furnaces and boilers is at least 1.0×106 tons of crude oil and 30×108 m3 of gas. Consumption of gas and oil increases not only operational costs, but also the living costs of workers, for example, who maintain complex installations and systems.The exploitation and utilization of the available geothermal resources of oil fields can not only replace oil, gas, coal and other fossil fuels, but can also provide a new way to diversify the oil field economy and future development. In addition, the annual volume of water extracted from the field exceeds 7×108 m3, water which contains rich medium temperature and low temperature geothermal energy already ready for use. According to the calculation of heat energy extraction at 10 degrees Celsius (heat pump), the available heat energy is equivalent to about 1.3×106 tons of standard coal, and also equivalent to an oil field with annual oil production of 0.9×106 tons; which is quite a significant amount of heat
ANALYSIS Underneath the Chinese capital about 300 wells have been drilled about 3 kilometers deep, from which water heated to 70°C is pumped out. The planet's energy extracted from such depths is used for central heating of high-rise buildings and for maintaining the desired temperature in greenhouses.To cool rooms in summer our company uses horizontal heat exchangers installed not too deep in the soil, capable of cooling water in the system to 18-15°C. Exploration and development of hydrocarbons shows that sedimentary basins are rich not only in hydrocarbon resources, but also in medium-temperature and low-temperature geothermal resources.The latest assessment of geothermal resources of major oil and gas bearing basins shows that in the most resource-rich basins, the Bohai Bay Basin and the Sunliao Basin, the total geothermal resources in Daqing, Liaohe and Huabei fields are up to 11,012×1018 J, and the recoverable geothermal resources are up to 424×1018 J, equivalent to 3757×108 tons and 145×108 tons of standard coal respectively Calculation of geothermal resources is based on the volumetric method and calculation formulas : where, A- block area, m2; d- average block thickness, m; Φ- average reservoir porosity, %; tr- reservoir temperature, °C; tj- normal temperature zone temperature, °C; - reservoir rock density, kg/m3; Cc- specific heat capacity of reservoir rock, J/(kg-°C); - reservoir water density, kg/m3; Cw- specific heat of reservoir water, J/(kg-°C). It is well known that oil fields are both major producers and consumers of energy, and large amounts of gas, oil and coal are consumed annually for heating living quarters, thermal utilization of heavy oil, collection and transportation of oil, etc. Many technological activities consume large amounts of heat during oil production; for example, crude oil dewatering and transportation require heating, and especially heavy oil with higher viscosity needs to be heated to reduce its viscosity before being transported through the pipeline.According to statistics, the annual energy consumption of oil field furnaces and boilers is at least 1.0×106 tons of crude oil and 30×108 m3 of gas. Consumption of gas and oil increases not only operational costs, but also the living costs of workers, for example, who maintain complex installations and systems.The exploitation and utilization of the available geothermal resources of oil fields can not only replace oil, gas, coal and other fossil fuels, but can also provide a new way to diversify the oil field economy and future development. In addition, the annual volume of water extracted from the field exceeds 7×108 m3, water which contains rich medium temperature and low temperature geothermal energy already ready for use. According to the calculation of heat energy extraction at 10 degrees Celsius (heat pump), the available heat energy is equivalent to about 1.3×106 tons of standard coal, and also equivalent to an oil field with annual oil production of 0.9×106 tons; which is quite a significant amount of heat
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