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《Acta Sedimentologica Sinica》 2006-01
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The Study on the Palaeogene Lacustrine Reefs in Jiyang Sag,Eastern Shandong Province

LI Yong~(1,2) ZHONG Jian-hua~(1,3) WEN Zhi-feng~3 WANG Hai-qiao~31(Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640)2(Postgraduate School of the Chinese Academy of Sciences,Beijing 100039)3(Earth Science and Information College,Petroleum University,Dongying Shandong 257061)  
The reefs,mainly constructed by algae and with high production reservoir for oil and gas,are developed in several areas of Jiyang Sag in the form of composite deposition,that is,reef core,fore-reef and back reef.Taking into account of the biogenic components,the algal dolomite,the main component of algal reefs,consisted of Cladosiphonia sinensis,Serpula shandongensis etc.,and be of favorable storage capability.Based on the lithological characteristics of reef rocks,the reef types can be divided into algal reefs,algal reef mounds and algal biostromes,among which the algal reefs,are of the best reservoir property.Dolomitization,consortium cementation,atmosphere seepage corrosion and deep embedding effect have great influence on the property of reef reservoir.The reef reservoirs are developed mainly in the neighboring structural platform or brim,according to the matching relation of structure,lithology and stratum,reef reservoirs can be divided into reef stratum,fault block-lithology and lithology types.
【Fund】: 国家重点基础研究发展规划项目(批准号:G1999043603);; 国家自然科学基金项目(批准号:49972037);; 高校博士点基金项目(批准号:20010425004);; 山东省自然科学基金项目(批准号:Q99E01)联合资助
【CateGory Index】: P618.13
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