- 责任者：Lin Jie (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Wu Xichun
- 刊名：Computing Techniques for Geophysical and Geochemical Exploration
- 出版年：2011
- 卷期：33(3)
- 关键词：礁 ; reefs ; 岩礁储集层 ; reef reservoirs ; 四川盆地 ; Sichuan Basin
- 页码：p.323-330
- 图表：7 illus., 13 refs.
- 分类号：1003
- issnNo：ISSN1001-1749
- isbnNo：CN51-1242/P
The Tiechanghe organic reefs developed in the Upper Permian Changxing Formation are another important representative of platform edge reefs in northeast Sichuan Basin. By studying the measurement of 4 outcrops and their detailed indoor examining, this paper finds that the reefs here are not just some isolated reefs like Linchang, and Jiaoshutang, but a united Changxing reef-shoal complex. The Changxing Formation is mainly made up by platform edge reefs and platform edge shallow shoal facies, and three upwards vertical cycles reef-shoal complex. The main reef-building organism of the organic reefs is sponge, taking a percentage of about 20%～50%, and fringing reef organism are algae, foraminifer, fusulinida and other categories. Reservoir lithology is mainly made of reef limestones and bioclastic grainstones, with low level dolomitization. Holes are rich, but many were filled with calcite crystals.