Monitoring of the well. Well control during gas, oil and water inflow

Gas, oil and water inflow (GOWI) is one of the most widespread troubles occurring at any phase of well construction. In some regions, especially at exploration drilling with gas-bearing zones, the part of GOWI is more than 30% of total trouble amount. Thereafter, costs, spending on the GOWI liquidation, are rather expensive, which has a negative im-pact on economic activities of a drilling enterprise.