Main Controlling-Factor Analysis of Permian Low Porosity and Low Permeability Reservoirs in Hangjinqi Exploration Area in Ordos Basin

详细信息   

• 责任者：Zhang Qin (Key Laboratory in Marine Reservoir Evolution and Hydrocarbon Enrichment Mechanism ; MOE ; China University of Geosciences ; Beijing 100083 ; China) ; Tang Xuan
• 刊名：Petroleum Geology & Oilfield Development in Daqing
• 出版年：2011
• 卷期：30(3)
• 关键词：低渗透储集层 ; low permeability reservoirs ; 砂岩储集层 ; sandstone reservoirs ; 鄂尔多斯盆地 ; Ordos Basin
• 页码：p.45-50
• 图表：4 illus., 1 table, 28 refs.
• 分类号：1003
• issnNo：ISSN1000-3754
• isbnNo：CN23-1286/TQ

摘要

The characteristics and origin of low porosity and low permeability reservoirs in Hangjinqi area in North Ordos Basin are the hot spot of current study. The Permian reservoirs in Upper Palaeozoic have been studied, and the porosity and permeability properties of multi sets of cores are measured, showing that the Permian reservoirs in Hangjinqi area are the tight ones with low porosity and low permeability. Through the analysis of many core testing data, microscopic sections and scanning electron microscope results, it is believed that the formation of low porosity and low permeability reservoirs is controlled by sedimentation, acid discharge corrosion in coal measure strata, compaction and cementation comprehensively.