“小而肥”油藏油水分布特征及成因探讨——以海拉尔贝尔凹陷贝中油田为例  

Investigation About Oil and Water Distribution and Causes in 'Small and Fat' Oil Reservoir:Take Beizhong Oil Field in Beier Depression Hailaer Basin as an Example

作　　者：黄劲松[1] 刘长国 付晓飞[3] 吕延防[3] 孙永河[3] 

机构地区：[1]大庆油田责任有限公司勘探开发研究院,黑龙江大庆163712 [2]大庆油田责任有限公司采油二厂,黑龙江大庆163414 [3]东北石油大学地球科学学院,黑龙江大庆163318

出　　处：《吉林大学学报（地球科学版）》2012年第1期9-17,共9页Journal of Jilin University：Earth Science Edition

基　　金：国家油气重大专项(2008ZX05007-03);高等学校博士学科点专项科研基金项目(20060220002)

摘　　要：针对'小而肥'油田油气成藏特点,以贝尔凹陷贝中油田为例,在对其探评井及开发井测井曲线、地震解释成果、测井解释资料、试油试采动态开发数据研究整理的基础上,结合其断裂系统拆分结果,通过典型实例分析和油藏解剖得知,贝中油田南一段主力油层在'满凹含油'的基础上,形成含油性差区或水区的主要控制因素为:断层断失作用造成目的层内主力油层缺失,造成断层附近见水;受晚期反转断层调整作用导致部分南一段油调整到南二段或大一段储层中形成次生油藏,造成主力油层反转断层附近含油性较差;开发过程中油动态运聚过程使构造低部位快速见水。According to characteristics of oil and gas accumulation in ＂small and fat＂ oil reservoir,the authors take Beizhong oil field of Beier depression as an example.The typical examples and reservoir sections are analyzed base on the study of logging curves,results of seismic interpretation,logging interpretation data and dynamic development of test data on oil production of exploration-evaluation wells and development well,combined with faults system split results in Beizhong field.On the basis of ＂sag-wide oil bearing＂ in Nanyi（the first member of Nantun Formation） major reservoir of Beizhong oil field,the factors of forming poor oil areas or water areas are loss of major reservoirs within the target layer by the function of fault,causing water areas formed near the faults;adjustment by later reverse faults,oil from Nanyi Layer adjust to Naner（the second member of Nantun Formation） layer or Dayi（the first member of Damoguaihe Formation） Layer formed secondary reservoirs,and causing poor oil areas formed near the reveres faults within main reservoir;oil dynamics migrations and accumulation during oil development,causing quickly water occurrence in lower positions.

关 键 词：“小而肥”油藏 满凹含油 “甜点” 断失作用 反转断层 动态运聚 海拉尔盆地 油气 

分 类 号：P618.13[天文地球—矿床学]