Introduction to the main methods of geothermal well geophysical exploration in hot spring resorts
The investigation of geothermal wells is an indispensable part of the construction of hot spring resorts. The exploration of geothermal wells requires not only scientific methods, but also delicate techniques to ensure the safety and efficiency of hot spring resorts. This paper will focus on the main methods of geothermal well geophysical exploration in hot spring resorts.
1. The importance of geophysical exploration of geothermal wells.
Geothermal well geophysical exploration is an important part of geothermal resource exploration, and its main purpose is to understand the underground geological structure, geothermal resource distribution and reservoir characteristics through physical detection methods, so as to provide a scientific basis for the design, construction and operation of geothermal wells. In the construction of hot spring resorts, the accuracy and reliability of geothermal well geophysical exploration are directly related to the development benefits and operational safety of hot spring resorts.
2. The main methods of geothermal well geophysical exploration.
* Exploration method. The exploration method is a method to study the underground geological structure by artificially exciteting the first wave and using the propagation characteristics of the first wave in the underground medium. In geothermal well geophysical exploration, the exploration method can understand the thickness, distribution and structure of underground rock formations, and provide an important basis for the design of geothermal wells.
Electrical exploration method.
The electric exploration method is a method to infer the underground geological conditions by measuring and studying the distribution law of artificial electric field or natural electric field by using the difference in the electrical properties of underground medium. In geothermal well geophysical exploration, the electrical exploration method can understand the electrical parameters such as resistivity and conductivity of underground rock formations, and further infer the water content of underground rock formations, and the location and range of thermal reservoirs.
Magnetic exploration method.
Magnetic exploration method is a method to infer underground geological conditions by measuring and studying the distribution law of geomagnetic field or artificial magnetic field by using the magnetic difference of underground medium. In geothermal well geophysical exploration, the magnetic exploration method can understand the magnetic characteristics of underground rock formations, and then infer the structure of underground rock formations and the distribution of magmatic rocks.
Gravity exploration method.
Gravity exploration method is a method to infer underground geological conditions by measuring and studying the distribution law of the earth's gravity field by using the density difference of underground media. In geothermal well geophysical exploration, gravity exploration can understand the density distribution of underground rock strata, and further infer the thickness, structure and distribution of magmatic rocks in underground rock strata.
Geophysical prospecting in the well.
The borehole geophysical prospecting method is a geophysical prospecting method carried out in the wellbore of geothermal wells, which mainly includes in-well temperature measurement, in-well resistivity measurement, and in-well acoustic measurement. The geophysical prospecting method can directly understand the geological conditions around the wellbore of geothermal wells, which provides an important basis for the construction and operation of geothermal wells.
III. Conclusion. Geophysical exploration of geothermal wells in hot spring resorts is an important part of geothermal resource exploration, which requires a variety of methods for comprehensive exploration. Through the comprehensive application of various methods such as exploration method, electric exploration method, magnetic exploration method, gravity exploration method and in-hole geophysical prospecting method, we can fully understand the underground geological structure, geothermal resource distribution and reservoir characteristics, and provide a scientific basis for the construction of hot spring resorts. In the future construction of hot spring resorts, the research and application of geothermal well geophysical exploration technology should be further strengthened, the accuracy and reliability of exploration should be improved, and strong support should be provided for the sustainable development of hot spring resorts.