An establishment method and an application method of a water temperature and water quantity analysis chart of a hydrothermal geothermal well

Abstract

The invention provides an establishment method and an application method of a water temperature and water quantity analysis chart of a hydrothermal geothermal well. The building method comprises: building a two-dimensional rectangular coordinate system, wherein horizontal coordinates represent the water temperature variation of an exploratory well, and vertical coordinates represent the water yield variation of the exploratory well; Forming a water temperature and water quantity scatter diagram in the two-dimensional rectangular coordinate system based on water temperature data and water quantity data of a plurality of geothermal field exploratory wells in a research area; Drawing different levels of isothermic curves in the two-dimensional rectangular coordinate system respectively; And dividing the two-dimensional rectangular coordinate system into different areas based on the equal heat curve. The plate can be widely applied to the geothermal field exploration evaluation process, the geothermal field exploration development potential can be known conveniently and quickly, and manpower and material resources are saved. According to the method, the rapidity and scientificity of heat energy level evaluation provided by the geothermal field exploratory well water temperature and quantity are improved, so that an evaluation result has a reference value.

Description

technical field [0001] The invention belongs to the field of geothermal geology, and in particular relates to a hydrothermal type geothermal field geothermal well water production temperature water production rate geothermal energy level discrimination model, that is, the establishment and application of a hydrothermal type geothermal well water temperature and water volume analysis chart. Background technique [0002] At present, domestic hydrothermal geothermal resources are developing rapidly as a clean heating energy source, but there is no universal and effective tool for dividing and comparing the distribution range of water temperature and volume of exploration wells in geothermal fields. The water volume is estimated by parameters such as layer porosity, permeability, and fracture development degree. Due to the complex geothermal geological structure, there are many factors that affect the temperature and volume of geothermal water. The analysis of various related ge...

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Problems solved by technology

[0002] At present, domestic hydrothermal geothermal resources are developing rapidly as a clean heating energy source, but there is no universal and effective tool for dividing and comparing the distribution range of water temperature and volume of exploration wells in geothermal fields. The water volume is estimated by parameters such as layer porosity, permeability, and fracture development degree. Due to the complex geothermal geological structure, there are many factors that affect the temperature and volume of geothermal water. The analysis of various related geological factors makes it impossible to quickly judge whether the water temperature and volume of the exploration well are within the normal use range, and the geothermal potential level that the geothermal well can provide, and the exploration wells of each geothermal field with different structural units need to be re-judged. The geothermal gradient of the unit is different, the porosity, permeability and fracture development conditions are different, the water temperature and volume of different exploration wells are not comparable, and it is impossible to form a unified concept of geothermal energy level for geothermal wells

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