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针对胜三区东三段油藏自然递减、综合递减速度大,油藏开发水平低的不利局面,通过精细油藏分析,采取以油藏分类措施挖潜,完善潜力井区注采井网,加强潜力井区注水,并结合工艺配套等合理措施,不但提高胜三区东三段储量动用程度及水驱储量动用程度,增大水驱波及面积,而且达到减缓递减,提高单元开发水平。单元日产油能力由276t上升到323t,综合含水由91.8%下降到90.9%,注采比由0.7上升到0.88,油藏自然递减率由治理前18.6%降为治理后9.0%,累积生产原油7.125×104t。6
According to the unfavorable situation that the reservoir of East Third Member of Sheng 3 Member Naturally Decreased, Comprehensive Decreasing Speed is Excess, and Reservoir Development Level Is Low, through the analysis of fine reservoir, taking the reservoir classification measures to tap the potential and improve the wellbore of injection and production in the potential well area, Potential water injection in the well area, combined with reasonable measures such as process matching, will not only improve the utilization of reserves and waterflooding reserves in the East Third Member of Shengsan District, but also increase the area and area of water flooding. Unit daily oil production capacity rose from 276t to 323t, integrated water decreased from 91.8% to 90.9%, injection-production ratio increased from 0.7 to 0.88, natural decline rate from 18.6% before treatment to 9.0% after treatment, the cumulative production of crude 7.125 × 104t. 6