| 川东北地区下三叠统飞仙关组白云岩储层研究 |
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| 引用本文： | 谭先锋,胡明毅.川东北地区下三叠统飞仙关组白云岩储层研究[J].四川地质学报,2010,30(2):154-156. |
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| 作者姓名： | 谭先锋 胡明毅 |
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| 作者单位： | 1. 重庆科技学院石油工程学院,重庆,401331
2. 长江大学地球科学学院,湖北,荆州,434023 |
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| 摘 要： | 在川东北地区下三叠统飞仙关组沉积相模式研究成果的基础上，详细研究了区内白云岩的岩石类型及储集性。结果表明该区各类白云岩主要孔隙类型为粒间溶孔、粒内溶孔、粒间原孔、晶间孔隙、铸模孔、裂缝性溶洞、裂缝等。结合物性资料表明颗粒砂屑溶孔云岩及鲕粒溶孔云岩为Ⅰ类优质储层、鲕粒云岩及砾屑云岩为Ⅱ类好储层、结晶云岩为Ⅲ类较差储层、泥一细粉晶云岩为非储层。
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| 关 键 词： | 白云岩 储集空间组合 孔隙特征 川东北地区 |
A Study of Dolomitite Reservoir of the Lower Triassic Feixianguan Formation |
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| TAN Xianfeng,HU Mingyi.A Study of Dolomitite Reservoir of the Lower Triassic Feixianguan Formation[J].Acta Geologica Sichuan,2010,30(2):154-156. |
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| Authors: | TAN Xianfeng HU Mingyi |
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| Institution: | 1-Department of Petroleum Engineering, Chongqing College of Science and Technology, Chongqing 401331; 2-College of Earth Science, Changjiang University, Jingzhou, Hubei 434023) |
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| Abstract: | This paper deals with rock type and reservoir property for dolomitite in northeast Sichuan on the basis of sedimentary facies model of the Lower Triassic Feixianguan Formation. The study indicates that pore types of the dolomitite in this region include intergranular solution pore, intragranular solution ore, intergranular pore, crystalline intergranular pore, cast solution pore, crack solution cavity, fissure and so on. Dolomitite with psammitic solution pore and ooide solution pore is Ⅰ-type reservoir, and oolitic dolomitite and allochemical dolomitite are Ⅱ -type reservoir and crystalline dolomitite is Ⅲ-type reservoir. Micritic dolomitite and dolosiltite are not reservoir. |
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| Keywords: | dolomitite reservoir space association pore property northeast Sichuan |
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