B239超前注水建立有效驱替压力系统研究  

Researches on Building Effective Displacement Pressure System of Advanced Water Injection in B239 Well-Block Reservoir

作　　者：胡书勇[1] 李亮[1] 伍睿 王玉洁 李磊[1] 

机构地区：[1]"油气藏地质及开发工程"国家重点实验室.西南石油大学,四川成都610500 [2]德阳广汉高新技术产业园区管理委员会,四川德阳618300 [3]山东科瑞控股集团有限公司,山东东营257067

出　　处：《西南石油大学学报（自然科学版）》2014年第6期123-127,共5页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：教育部博士点基金(20105121110006)

摘　　要：B239井区长6超低渗透油藏试验区块实施超前注水开发,开发效果未达到预定方案指标,为此开展了超前注水改善开发效果有效性的研究。主要在加密调整井网的基础上,采用油藏工程与数值模拟相结合的方法,设计了相应的研究方案。研究结果表明:对井距达到有效作用距离的井网系统超前注水才更为有效。如果井距过大,即使采用超前注水也不能充分发挥作用或者作用甚微,只能在井底形成局部高压,不能形成有效驱替,注入水不能有效向油井推进。该项研究对同类低渗、特低渗油田超前注水开发提供了理论依据和技术支撑,对于该类油田开发具有重要的指导意义。The Chang 6 ultra-low permeability reservoirs test block of well-block B239 is developed with advanced water injec-tion. However,the development effect has not reached expectations as planned. For this reason,we carryied out the research on the effectiveness of advanced water injection on improving development results. Based on the pattern of the infill wells adjustment,we designed the research plan by combining reservoir engineering and numerical simulation method. Researches show that the advanced water injection is more effective if the well spacing of the well network system reaches the effective distance. If the well spacing is too wide,advanced water injection cannot work or the effect is little. In that case high pressure will only appear at the bottom hole,without effective displacement. This study provides theoretical basis and technical support to advanced water injection development in other low permeability and ultra-low permeability oilfields,which has an important guiding significance for the exploitation of such oilfields.

关 键 词：超低渗透油藏 超前注水 数值模拟 有效驱替 

分 类 号：TE348[石油与天然气工程—油气田开发工程]