摘要
对四川盆地东北部下三叠统飞仙关组地质、测井和地震数据的分析表明,该区优质储层多由残余鲕粒白云岩构成,储集空间以裂缝-孔隙型为主,属于中等孔隙度高渗透率性质的储层。优质储层测井曲线多具有低伽马、低速度、低密度和高中子孔隙度的"三低一高"特征,地震反射响应特征为中—强反射振幅并和地层顶底面反射形成典型的"亮点",可利用约束稀疏脉冲反演表征储层的纵横向分布。认为地质与地震相结合是预测飞仙关组优质储层的有效方法。
he comprehensive analysis of geological, well logging and seismic data have shown that Feixianguan Formation in Northeast Sichuan Basin is a medium-porosity and high-permeability excellent Reservoir, which is comprised of relic-oolith dolostone with reservoir space of fractures and pores. The logging curves of this reservoir are characterized of low values of gamma, speed and density and a high value of neutron porosity. The response of seismic reflection demonstrates the low wave impedance and medium -strong reflection amplitude, which is always characteristic of ＂bright spot＂. The vertical and horizontal distributions of the reservoir can be clearly outlined by the restrainted sparse pulse inversion. It is indicated that the research combination of geology with seismic facies is an effective method to predict the Feixianguan excellent reservoir.
出处
《海相油气地质》
2010年第2期30-35,共6页
Marine Origin Petroleum Geology
基金
四川省教育厅自然科学青年基金(08ZD-004)
四川省应用基础研究计划项目(2009JY0058)
国土资源部海洋油气资源与环境地质重点实验室开放基金项目(MRE200902)联合资助
关键词
飞仙关组
白云岩
储集层特征
储层预测
四川盆地
male, Geologist. Doctor degree in progress at Energy College, Chengdu University of Technology. Add： 1 Dongsan Rd., Erxianqiao,Chengdu, 610059 China
