Side Track Drilling (STD) with Well Recommissioning from Conservation and Abandonment Fund

At the Yuzhny Kemachi field (wells No. 144, 60, 71), works were carried out to extract damaged tubing (including GIS tools) and reconstruct the wells by side-track drilling. The operations included window cutting through two casing columns (Ø 8 5/8” and 5”) and drilling a second borehole to a depth of 2305 m vertically, with a sidetrack offset ranging from 270 m to 600 m, using high-precision navigation equipment.

As a result, an average daily natural gas production of 30 thousand m³ was achieved from each well.

Currently, similar work is ongoing at well No. 79 of the Yuzhny Kemachi field.