摘要
克拉玛依油田六、七、九区石炭系储层岩性以安山岩、玄武岩、杂砂岩、凝灰岩和火山角砾岩为主。根据取心井岩心观察和FMI/EMI成像测井解释表明,石炭系储层各类岩性均有裂缝发育,裂缝发育呈现多期次、多角度的特征,火山角砾岩和凝灰岩中的裂缝比玄武岩和安山岩发育。试油和试采生产证明了石炭系各种岩性都能形成好储层。火山岩储层孔隙类型主要为裂缝和基质溶孔,储层模式主要为裂缝直接连通裂缝型、裂缝间接连通的孔隙-裂缝型,六、七、九区石炭系储层为低孔隙度、低渗透率、非均质性较强的裂缝-孔隙型双重介质储集层。储层含油性的分布受风化壳和裂缝发育控制。综合运用岩心观察、薄片分析、测井分析、试油和试采生产验证,总结出了石炭系偏低电阻率型、中等电阻率型、较高电阻率型3种类型的裂缝段产层特征及其识别方法。
The rocks of 6th,7th and 9th zone of Karamay Oilfield are mainly composed of andesite,basalt,miscellaneous sandstones,tuff and volcanic breccia.By core analysis and FMI/EMI imaging logging interpretation,it is concluded that fractures are developed in all lithologic reservoirs of carboniferous,developments of the fractures are characteristic of multi-stage and multi-orientation,fractures in volcanic breccia and tuff are more abundant than that of basalt and andesite.Production and well test showed that vari...
出处
《测井技术》
CAS
CSCD
2007年第3期256-261,共6页
Well Logging Technology
关键词
储层识别
石炭系
火山岩
测井特征
克拉玛依油田
reservoir identification
carboniferous
volcanic rock
logging feature
Karamay Oilfold
