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注水开发是油田开采的一种重要手段,长期注水开采的油田会形成一定规模的窜流孔道,导致部分油井水淹,严重影响油田开发效果。针对陕北油田油藏高温低渗,微裂缝发育,矿化度高,在实验室研制出的冻胶SD,具有耐高温,耐剪切,抗盐性好,和耐冲刷性,堵水性能好,适合低渗高温油田。在现场应用取得显著降水增产效果,为低渗高温油田的提高采收率打下基础。
Waterflooding is an important means of oilfield exploitation. Long-term waterflooding oilfields will form channeling channels of a certain size, resulting in flooding of some oil wells and seriously affecting the development effect of oilfields. In view of the high temperature and low permeability, the development of micro-cracks and high salinity in the oilfields of Shaanxi Oilfield, the gel SD developed in the laboratory has the properties of high temperature resistance, shear resistance, salt resistance, erosion resistance and water plugging performance Well, suitable for low permeability and high temperature oilfields. In the field of application of significant precipitation increase yield effect, to enhance the recovery rate of low permeability high temperature oilfield to lay the foundation.