秦家屯油田SN77-78区块综合治理研究

秦家屯油田SN77-78块位于松辽盆地南部东南隆起区梨树断陷西部,投入注水开发以来,目前出现注采对应关系差,储量动用程度低,储层非均质性严重,平面及层间矛盾突出,部分注水井吸水能力低、注水压力高,油井见水后,含水上升快,产量递减快等一系列问题,文章通过区块开发历程,区块开发现状,区块整体开发效果评价等分析,确定通过压裂、完善注水层位等手段,达到改善水驱开发效果,提高油田采收率的目的,具有重要的意义。

Comprehensive Treatment Research in SN77-78 Block of Qinjiatun Oil Field

The Qinjiatun Oilfield, is located in the southern Songliao Basin and west slope of the Lishu Fault. Since the input of water flooding, the injection production relationship and difference, the producing degree of reserves is low, serious reservoir heterogeneity, plane and interlayer contradiction, part of injectivity in low, high water injection pressure, water breakthrough, water cut rising fast, rapid production decline and a series of problems. The block development course, block development status, analysis of the block development effect evaluation, determined by fracturing, improving water injection layers and other means, to improve water flooding development effect, enhancing oil recovery, has important significance.