Dashava uses modern logging methods (electrometric, radioactive, acoustic, technical control, etc.), devices and equipment for surveys both in open and cased holes of all types of wells.
The main tasks to be solved by logging methods (including ultra-deep wells, at high temperatures and pressures, in difficult conditions of small diameter wells, etc.) are as follows:
Open hole:
- lithological evaluation of geological section of wells;
- determining the saturation of deposits;
- evaluation of pay zones;
- direct measurements of physical parameters of rocks (resistivity, conductivity, polarization, radioactivity, density, temperature, well diameter, hole angles and azimuths and bedding, etc.);
- determination of reservoir properties (porosity, saturation etc.);
- selection and recommendations intervals for testing.
Cased hole:
- determining of saturation;
- evaluation of pay zones;
- determination of reservoir properties (porosity, saturation etc.);;
- control of the casing technical condition (tightness, cement quality, corrosion level, wear, etc.);
- well perforation;
- deep penetrative perforation (including with depression) on cables and tubing;
- quality control of perforation;
- detecting beside casing flows and leaks;
- installation of bridge plugs and packers with cables or coiltubing;
- reservoir monitoring.