收稿日期: 2011-06-26
修回日期: 2011-07-23
网络出版日期: 2011-10-10
基金资助
国家重大科技专项“天然气开发关键技术”（编号:2011zx05015)资助.
Controlling Factors of Low Permeability Sandstone Reservoirs in Denglouku Formation of Changling Gas Field
Received date: 2011-06-26
Revised date: 2011-07-23
Online published: 2011-10-10
王键, 贾爱林, 魏铁军, 刘群明, 甯波, 章亚, 钟佳倚 . 长岭气田登娄库组低渗砂岩储层控制因素分析[J]. 天然气地球科学, 2011 , 22(5) : 827 -833 . DOI: 10.11764/j.issn.1672-1926.2011.05.827
Based on large amounts of data of lithological characters,physical property,pore structure and thin section,we paraphrased controlling factors of the reservoir development in combination with sedimentary elements and diagenesis.The results indicate that Denglouku Formation sandstone belongs to braided delta plain subfacies in Changling gas field,composed of feldspathic lithic sandstone,the reservoir space consists in the intergranular dissolved pores,associated with low porosity and permeability.Rock source is the basis of sand bodies.the physical properties of quartz sandstone are better than that of lithic quartz sandstone and lithic sandstone.Both sedimentary evolution and position of secondary pores control the distributive intervals of effective reservoir.The plane heterogeneity is constrained by sedimentary microfacies and diagenetic facies.Strong compaction and cementation are the dominant factor to create the low permeability reservoirs,in contrast that dissolved secondary pores are in favor of relatively high permeability zones so as to make the low permeability reservoir become better.
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