Estimation of the barrier flooding effectiveness on the example of oil and gas deposit of the ardatov horizon of Vostochno-Suslovskoe field
At the present moment there is no single opinion about the effectiveness of barrier water-flooding implementation on gas and oil deposits. This article analyzes the implementation of the mentioned measure at the D2arIVb object of Vostochno-Suslovskoe field, Saratov region. It is revealed that barrier water-flooding allowed neither preventing gas breaching into the oil well nor stabilizing reservoir pressure at the selection areas. While simultaneous withdrawal of oil and gas, in spite of large amount of the pumped water, one can observe oil migration into the gas-saturated layers of the reservoir. According to the analysis some measures are Recommendations on additional extraction of oil residual reserves, based on data analysis, are presented.