低孔低渗碎屑岩储层岩石物理建模技术——以建南地区须家河组须六段为例
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摘要
建南地区须家河组须六段储层非均质性强、孔隙结构复杂,属于低孔、低渗储层;加之受环境影响,常规地震属性和叠后地震反演难以识别气、水层。该区仅建111井有横波测井资料,泊松比参数对气水有一定识别能力。为了开展叠前反演研究,需要岩石物理建模。针对须家河组须六段储层特点,在环境校正的基础上,开展低孔低渗碎屑岩岩石物理建模技术研究,获得识别储层和流体的敏感性参数,在实际应用中见到良好效果。
Xu-6Member reservoir of Xujiahe Formation in Jiannan Area belongs to low-porosity and low-permeability reservoir with the characteristics of strong heterogeneity and complex pore structure.In addition,due to environmental impact,it is difficult to identify its gas and water zone with the help of conventional seismic attribute and post-stack seismic inversion.Therefore,it is necessary to build rock physical model for conducting research of post-stack inversion.Aiming at reservoir features of Xu-6 Member of Xujiahe Formation and on the basis of environmental factoring,this paper studies rock physical modeling technology of clastic reservoir with low porosity and low permeability and acquires sensitivity parameters to identify reservoir and fluid.Better result is achieved by using this technology.
引文
[1]皱玮.川西坳陷须家河组储层综合评价[D].四川:成都理工大学,2012.
    [2]张婉.致密砂岩气储层预测应用研究-以川东北地区上三叠统须家河组须四段为例[D].四川:成都理工大学,2010.
    [3]倪华.鄂西渝东区上组合圈闭评价优选[J].江汉石油职工大学学报,2006,(02):30-32.

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