Argillites of the Exploration Formation of the Talnakhskoye field, known as "shooters", often collapse in the borehole of drilled wells. Previous studies have focused on identifying the causes of argillites instability, studying their mineral composition ...

Borehole penetration of mudstones of the Exploration Formation of the Talnakhskoye field is often complicated by collapse of borehole walls. The strong tectonic disturbance of the area and high rock pressure due to the great depth (2000 m) of the formation do not fully explain this phenomenon, since both emergency and accident-free wells have been recorded in equal conditions ...

This paper presents the results of investigations of the structure of the upper (in the range of 0-250 m) horizons of the Antarctic ice column from the area located 50 km south of Mirny station. The material of the study was an ice core with a diameter of 180 mm obtained from a vertical borehole ...