纳米聚硅材料在低渗透油田中的应用  

Application of polesilicon in low permeability oil field

作　　者：陆先亮[1] 吕广忠[1] 栾志安[1] 伍增贵[1] 苏咸涛[2] 

机构地区：[1]石油大学(华东) [2]胜利油田东胜石油开发集团有限公司

出　　处：《石油勘探与开发》2003年第6期110-111,122,共3页Petroleum Exploration and Development

摘　　要：在低渗透油田注水开发过程中,普遍存在注水井注入压力长期居高不下、注入量低、单井注入压力差异大等问题,采用纳米聚硅材料可以缓解这一问题。岩心驱替实验、微观驱油实验表明,纳米聚硅材料改善注水效果的机理是能够改变岩石润湿性、提高水相相对渗透率,其强憎水特性能够驱替吸附在孔隙内表面的水膜、扩大孔径等。现场应用表明:纳米聚硅材料能降低注水压力,提高注水量,具有较好的经济效益。The injected water volume plays an important role in low permeability oil field waterflood development. It universally exists that injected pressure is high in a long time,injected water volume is low,the difference of injected pressure of each well is very large during oilfield development . Nanometer Polesilicon can resolve the question. This paper studies the mechanism that nanometer polesilicon can improve the waterflood response by changing the wettability of rock, enhancing relative permeability of water,and reducing significantly the flow resistant of injection water because of its stronger hydrophobility through core driving experment and micro-driving test . The core driving experment and full size field test prove that it can decompress and augment injection . Its best economic profit can be proved through economic evaluation .

关 键 词：低渗透油田 纳米聚硅材料 降压增注 实验 憎水 经济评价 

分 类 号：TE341[石油与天然气工程—油气田开发工程] TE348