收稿日期: 2009-05-15
修回日期: 2009-07-23
网络出版日期: 2010-02-10
基金资助
国家科技重大专项项目(编号:2008ZX05008-|003-04);国家重点基础研究发展计划（“973”）项目（编号：2006CB202305）联合资助.
Reservoir Characteristics of Sand Beds Ⅰ and Ⅱ in Lower Member of Xiaganchaigou Formation, Hongliuquan-Yuejin Area and Influence Factors
Received date: 2009-05-15
Revised date: 2009-07-23
Online published: 2010-02-10
张道伟, 张顺存, 史基安 . 红柳泉—跃进地区下干柴沟组下段（E13）Ⅰ和Ⅱ砂层组的储层特征及其影响因素浅析[J]. 天然气地球科学, 2010 , 21(1) : 26 -32 . DOI: 10.11764/j.issn.1672-1926.2010.01.26
Results of the core observation, slice identification and logging data analysis suggest that detrital rocks in sand beds Ⅰ and Ⅱ in lower member of Ganchaigou Formation, southwestern Hongliuquan-Yuejin Area are characterized by low maturity of rock composition and structure, with poor physical property. Debris-feldspar and feldspar-debris sandstones are predominate in the Hongliuquan area, with secondary porosity and poor physical property, most of which belongs to super low porosity and super low permeability reservoir-low porosity and low permeability reservoirs; while feldspar-debris and lithic sandstones are dominate in the Yuejin area, with original pore and good physical property, but which still is low porosity and low permeability reservoirs. The physical property of reservoir in this study is controlled by sedimentary environment, type rocks, composition and content of fillings, as well as degree of diagenetic reconstruction.
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