卫42断块特低渗油藏挖潜调整研究  

Study on the potential tapping and adjusting of ultra-low permeability reservoir in Wei 42 block

作　　者：董凤玲[1] 周华东[1] 李志萱[1] 陈莹莹[1] 毕玉帅[1] 王磊[2] 

机构地区：[1]中国石化中原油田分公司采油二厂,河南范县457532 [2]中国石化中原油田分公司采油三厂,山东莘县252429

出　　处：《岩性油气藏》2013年第5期113-116,122,共5页Lithologic Reservoirs

摘　　要：濮城油田卫42断块油藏埋藏深、物性差、储层沉积环境和砂体连通状况不清、平面非均质性强、注水困难、井网不完善,开发效果差。以油藏精细描述和油藏动态分析为基础,研究了油藏剩余油类型及分布规律。油藏剩余油类型主要有层间干扰型、构造高部位型、注采不完善型和透镜状砂体型。针对油藏地质特点和剩余油的不同类型,开展了滚动扩边、层段重新组合以及调整注采井距和井网密度等油藏工程研究。实施结果表明,针对不同类型剩余油分布的井网优化和井网加密等措施明显改善了开发效果。The reservoir in Wei 42 block of Pucheng Oilfield was characterized by deep burial, poor physical properties, unclear sedimentary environment and sand body connectivity, strong heterogeneity, difficult water injection, imperfect well spacing and low efficient development. Based on fine reservoir description and performance analysis of production, this paper studied the types and distribution of remaining oil. The remaining oil types were classified into interlayer interference type, structural high part type, imperfect injection-production type and lenticular sand body type. Aimed at the geological characteristics of reservoir and different types of remaining oil, many measures were carried out, such as enlargement adjustment, regrouping of layers, and adjustment of injection-production well spacing and well spacing density. The application result shows that well pattern optimization and well pattern thickening for different types of remaining oil distribution improved the development effect.

关 键 词：特低渗油藏 断块油藏 井网调整 剩余油挖潜 油藏描述 

分 类 号：TE347[石油与天然气工程—油气田开发工程]