详细信息   

• 责任者：Lian Chengbo (School of Resources and Environment ; Southwest Petroleum University ; Chengdu 610500 ; China) ; Zhong Jianhua
• 刊名：Chinese Journal of Geology
• 出版年：2010
• 卷期：45(4)
• 关键词：低渗透储集层 ; low permeability reservoirs ; 砂岩储集层 ; sandstone reservoirs ; 孔隙型储集层 ; porous-type reservoirs ; 松辽平原 ; Songliao Plain
• 页码：p.1170-1179
• 图表：5 illus., 20 refs.
• 分类号：1003
• issnNo：ISSN0563-5020
• isbnNo：CN11-1937/P

摘要

Lithological，poroperm and microscopic pore structure characteristics of low porosity and low permeability sandstone of Quan 4 formation in Longxi area，Songliao Basin were analyzed on the basis of core observation，identification and quantitative statistics of thin sections under microscope，analyses of electron scan microscope，X-ray diffraction，poroperm and high pressure Hg injection etc. The results indicate that the main lithology of Quan 4 formation is feldspathic litharenite and lithic arkose sandstone，with low maturity of composition and texture，and low porosity-permeability，most of the porous are residual intergranular pore and dissolved pore with a small pore-throat radius，the small pore accounts for a large proportion，the pore throat has a poor sorting and strong heterogeneity.