Geophysical well drilling is a process used in geophysical exploration and scientific research to obtain data about the geological and geophysical properties of the Earth through the drilling of deep wells. Unlike water well drilling or oil well drilling, which are conducted for specific purposes such as water supply or hydrocarbon extraction, geophysical well drilling focuses on obtaining data for scientific and geophysical research.
Here is a description of the geophysical well drilling process:
Before drilling, detailed planning is carried out, involving the selection of the location of the geophysical well based on research objectives. These objectives may include the study of geological structure, characterization of geophysical layers, and other aspects of the Earth.
An appropriate drilling technique is chosen based on geological conditions and research objectives. Drilling techniques may include rotary drilling, percussion hammer drilling, diamond core drilling, and other specialized techniques.
The geophysical well is drilled using the chosen technique. During drilling, samples of geological layers are taken, and precise data on depth, sample descriptions, and other relevant geophysical properties are recorded.
In geophysical drilling, drilling cores are obtained, which are cylindrical samples of rock or sediment. These cores provide detailed information about stratigraphy, composition, and other geological and geophysical properties.
During drilling, geophysical data such as electrical resistivity, density, seismic wave propagation velocity, and other properties are recorded. These data are used to characterize geophysical layers.
Once drilling is completed, the collected data are analyzed and interpreted. This involves identifying geophysical layers, characterizing subsurface structures, and obtaining information relevant to scientific research.
The results of geophysical well drilling are used to prepare geophysical reports that are utilized in scientific research, engineering studies, and geophysical projects.
Geophysical well drilling is a fundamental tool in scientific research and in the exploration of the Earth’s geophysical structure. It provides valuable data that contributes to geophysical knowledge and the understanding of the composition and properties of the Earth’s crust.