Auger complex with a retrievable core barrel (KShGS-200D)

Auger complex with a retrievable core barrel (KShGS-200D)

KShGS-200D is used for well drilling of grounds of the IV - VI category on drilling capacity with stem augers using retrievable core barrel on the rope for sampling.
The complex provides:

• selection of undisturbed ground samples with using drilling-around method on all extent of the well without hoisting of augers;
• selective approbation of well intervals by means of sinking intervals which aren't subject to approbation, by full-hole drilling with using of the removable drilling bit;
• possibility of using of the stem auger string as a temporary casing string at:
• core and non-core drilling with washing and airflush
• cable percussion drilling with punchdown core barriers, cases and bailers
• static and dynamic penetration test- immersion of explosives in a well, including in sedimentary rocks containing high contents of coarse clastic rock inclusions and the water-encroached bedrocks with unstable structure (sands, sandy loams)
• lit-by-lit plug back and cementation of wells without extra attachments
• installation of the observation borehole equipment as piezometers of hydrogeological wells PGS and continuous mud resistivity of wells RSK in unstable rocks with tendency to a failure
• minimization of labor costs at construction of engineering-geological, hydrogeological and special technical wells
• minimization of labor costs at construction of engineering- geological, hydrogeological and special technical wells