红井子地区长 9 油层组成藏模式及主控因素分析
网络出版日期: 2014-04-06
基金资助
国家“十二五”重大科技专项“鄂尔多斯盆地重点探区碎屑岩沉积体系、储层特征与主控因素”(编号:2011ZX05002-001-001)部分 研究成果
Hydrocarbon accumulation model and main controlling factors of Chang 9 oil reservoir set in Hongjingzi area
Online published: 2014-04-06
朱筱敏 , 黄捍东 , 代一丁 , 朱世发 , 陶文芳 , 刘从印 . 红井子地区长 9 油层组成藏模式及主控因素分析[J]. 岩性油气藏, 2014 , 26(2) : 81 -88 . DOI: 10.3969/j.issn.1673-8926.2014.02.013
Upper Triassic Yanchang Formation in Ordos Basin is characterized by deep thickness of sedimentation and abundant oil and gas resources, which is one of the most important target zones for oil and gas exploration in the basin. According to the study of geologic background and reservoir characteristics of Chang 9 oil reservoir set in Hongjingzi area, this paper comprehensively analyzed the sedimentary facies, sand body distribution, hydrocarbon migration pathway and paths. The result shows that the Chang 9 oil reservoir set in the study area is typical shallow water delta sedimentary system, with Chang 7 organic material as the main oil sources. The excess fluid pressure is the main driving force for oil and gas generated by Chang 7 hydrocarbon source rocks, which migrated to the top structure of Chang 9 reservoir through the pores and fractures and accumulated. The main controlling factors of hydrocarbon accumulation are oil source, channel and pressure difference.
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