- 责任者：Zhang Peng (Key Laboratory of Orogenic Belts and Crustal Evolution ; School of Earth and Space Sciences ; Peking University ; Beijing 100871 ; China) ; Hou Guiting
- 刊名：Geological Journal of China Universities
- 出版年：2013
- 卷期：19(4)
- 关键词：碳酸盐岩 ; carbonate rocks ; 裂隙 ; cracks ; 塔里木盆地 ; Tarim Basin
- 页码：p.580-587
- 图表：7 illus., 4 tables, 34 refs.
- 分类号：0300
- issnNo：ISSN1006-7493
- isbnNo：CN32-1440/P
More and more attentions have been paid to marine carbonate oil and gas exploration. Although carbonate rocks are normally dense, a variety of geological processes can make the carbonate rocks to become good oil and gas reservoirs. By analyzing fracture features of the carbonate rocks in the northern margin of Tarim Basin, we pointed out that iithology, stratum thickness, weathering crust, fluid transformation, and tectonics played an important role in fracture development. Coarse crystal dolomites are prone to developing more fractures than do fine crystal dolomite; More fractures are produced in thinner strata than thicker ones; More fractures are formed at the top of the weathering crust than at its bottom; The presence of fluid is conductive to fracture development while the effectiveness of the fracture development is reduced after the fracture is being filled; The greater curvature of the folds, the more fractures; Also, more fractures will occur near the fault and decrease exponentially with distance away from the fault.