The Effect of the Reservoir Space in Carbonate Formation by Fracture：Taking the Ordovician Carbonate Formation in Lungudong Region of oft-com:office:smarttags" />Tarim Basin as an Exampleoft-com:office:office" />

• 责任者：Zhao Xueqin (Department of Earth Sciences ; Zhejiang University ; Hangzhou 310027 ; China) ; Ma Qing
• 刊名：Chinese Journal of Geology
• 出版年：2010
• 卷期：45(1)
• 关键词：断裂 ; fractures ; 碳酸盐岩储集层 ; carbonate reservoirs ; 塔里木盆地 ; Tarim Basin
• 页码：p.292-306
• 图表：4 illus., 4 tables, 30 refs.
• 分类号：1003
• issnNo：ISSN0563-5020
• isbnNo：CN11-1937/P

There are two-period principal fractures developed in the Lungudong region. It makes carbonate formation to generate cave-fracture reservoir space system which dominated large caves as well as accompanied by network structural fractures and pore spaces. Early fractures mainly control the karsts of buried hill which located in the south-north pinch out of knollenkalk formation. It creates incised valley palaeogeomorphology and was enlarged to cave-based reservoir space by fluid erosion. Late fractures induce to two effects，on the one hand，it builds up new reservoir space and makes the unfilled or half-filled early fissures and corrosion pore spaces connected. On the other hand，it provides channels for the atmospheric fresh water immerge into the lower bed stratum，which result in the karsts system of level-undercurrent belt and deep-unhurried current belt developed. oft-com:office:office" />