Over the recent years sustention and increase of oil and gas production by the Russian oil and gas companies has been mostly achieved due to intensive operation of large fields, which had been under development for a long period of time. However, high water cut levels of the recovered oil and rapid decline of the reservoir pressure lead to a steady reduction of the operating well stock effectiveness and, consequently, reduction of the oil recovery factor (ORF). Drilling horizontal wells is one of the most effective methods of oil recovery enhancement.

Horizontal well drilling allows us developing oilfields, which previously were considered non effective ones; it allows us recovering hydrocarbons, which previously were considered non-recoverable ones due to insufficient thickness and low permeability of the productive reservoir.

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