In mining geophysics, a variety of different types of instruments and techniques are used during well surveys. This diversity is based on temperature, pressure, depth, inclined and horizontal drilling, and the like. As horizontal well drilling and the curvature of inclined wells increase, the need to organize not only the size, but also the organization of logging operations during drilling arises.

Logging while drilling (LWD) - provides the collection of well data during drilling without the need to remove the drill pipe from the well. This instrument is located at the end of the drill string, which transmits continuous real-time data on the properties of the formation rock, and can go anywhere the ax can go. Therefore, they are significantly more effective in extended side-hole wells. LWD, although sometimes risky and expensive, has the advantage of measuring the properties of the formation before the drilling fluids penetrate deep.

Advantages of the LWD tool:

· Continuously measures changes in physical properties directly from above.

· Effective in inclined and side-hole drilling.

· LWD measurements provide drilling engineers with critical information to make time-sensitive decisions regarding future well operations.

Information we can obtain from the LWD tool:

· Information about the strata types (limestone, shale, sandstone, etc.)

· Porosity, permeability, presence of fluids.

· Fluid properties (if any).

· Presence of structural weaknesses.

· Presence of pressure, salinity and saturation, etc.

Logging is widely used by ADSEA in artesian wells drilled for drinking water purposes.

Created

Drilling of hydrogeological exploration wells is an important process carried out to identify groundwater resources and assess their quality. This process consists of the following stages:

1. Preliminary Research and Planning
Geological and hydrogeological data of the area are collected.
Historical data and previous studies are studied.
The most suitable points for drilling wells are determined.
2. Geophysical and Geological Surveys
Geophysical measurements are carried out in the selected area (electrical exploration, seismic surveys, etc.).
The depth and potential of groundwater layers are determined.
3. Drilling Works
Wells are drilled using special drilling rigs.
The rocks extracted during drilling are analyzed.
The quality and productivity of water layers are assessed.
4. Testing and Monitoring
The flow rate of the wells and the chemical composition of the water are checked.
If necessary, additional filtration and purification systems are installed.
Long-term monitoring is carried out to track changes in water levels.
Application Areas
✅ Drinking and household water supply
✅ Irrigation systems in agriculture
✅ Water supply of industrial facilities
✅ Hydrogeological analyses in mining and construction areas