• 责任者：Wang Yan (School of Geosciences ; China University of Petroleum ; Qingdao 266580 ; China) ; Yang Shaochun
• 刊名：Computing Techniques for Geophysical and Geochemical Exploration
• 出版年：2013
• 卷期：35(6)
• 关键词：砂岩储集层 ; sandstone reservoirs ; 苏北盆地 ; Subei Basin
• 页码：p.683-689
• 图表：10 illus., 3 tables, 15 refs.
• 分类号：1003
• issnNo：ISSN1001-1749
• isbnNo：CN51-1242/P

     On the basis of analysis of rock sections and mercury injection curves, etc. A study is given on the reservoir characteristics of underwater distributary channel in member 1 of Taizhou, formation from internal structure of sand body in baol fault block of the south of Haian area, and three types of the reservoir pore structures are presented. The studies show that the architecture element of underwater distributary channel sandstone of braided delta front in baol fault block is reser- voir with middle--low porosity and permeability The compositional maturity and the textural maturity are low in this area. the pores of the reservoir are mostly secondary pores and few primary pores. Interstitial materials are mudstone matrix and carbonate cements, and the lithology is feldspathic lithic arenite and litharenite. The main diagenesis types are compaction, cementation and replacement, corrosion and dissolution. The deformation of ductile grain, detrital grainfracture even fault, secondary origin quartz, ankerite and calcite cementation and corrosion are the common appearances, the analyses of pore structure characteristic parameter of each architecture element show that the reservoir properties of underwater distributary channel main body is better than those of channel side body. lithofacies and sedimentary environment are major primary fac- tors that affect reservoir quality.