渤海湾裂缝性稠油油藏布井方式研究  

Well Placement of Fractured Heavy-Oil Reservoir in Bohai Bay

作　　者：李南[1] 丁祖鹏[1] 焦松杰[1] 刘新光[1] 

机构地区：[1]中海石油(中国)有限公司北京研究中心,北京100027

出　　处：《特种油气藏》2016年第5期100-102,共3页Special Oil & Gas Reservoirs

基　　金：中海石油(中国)有限公司重大专项课题"海上稠油热采开发方案设计方法及关键技术研究"(2013-YXZHKY-013)

摘　　要：渤海湾裂缝性稠油油藏拥有储层裂缝发育、流体黏度大、弱底水等油藏特征,世界范围内尚无此类油藏的开发经验。基于油藏地质特征,建立了大尺度仿真物理模拟模型,真实模拟地下流体在裂缝性双重介质中的流动。采用物理模拟和数值模拟相结合的手段,分别对比了水平井立体注采井网和水平井定向井混合立体注采井网的开发效果。研究表明:水平井侧底注水开发效果最好,采出程度比其他注水方式高1.2个百分点,累计产油量最高,综合含水最低,波及效率最高。该研究对此类油藏合理开发具有一定的借鉴意义。The fractured heavy-oil reservoirs in Bohai Bay are characterized by well-development of reservoir fractures,high fluid viscosity,low-development of bottom-aquifer and other unique reservoir properties,and there is no development experience for this kind of reservoir in the world. A large-scale physical simulation model is established to simulate the formation fluid flow in fractured dual-medium by taking the reservoir geology into consideration. Physical and numerical simulations are combined to compare the development performances of 3D well network with horizontal well and3 D well network with horizontal-directional well combination. Research shows that the side-bottom waterflooding of horizontal well is characterized by the maximum cumulative oil production,minimum comprehensive water-cut and maximum swept efficiency and the corresponding oil recovery degree is increased by 1. 2% than that of other scenarios. This research could provide certain references for the reasonable development of such reservoir.

关 键 词：裂缝 稠油 注采方式 物理模拟 数值模拟 渤海油田 

分 类 号：TE324[石油与天然气工程—油气田开发工程]