| 川西坳陷丰谷构造上三叠统须家河组四段致密砂岩储层特征 |
| |
| 引用本文： | 刘春富,刘树根,赵霞飞,陈杨.川西坳陷丰谷构造上三叠统须家河组四段致密砂岩储层特征[J].四川地质学报,2011,31(2):167-172,175. |
| |
| 作者姓名： | 刘春富 刘树根 赵霞飞 陈杨 |
| |
| 作者单位： | 成都理工大学油气藏地质及开发工程国家重点实验室,成都,610059 |
| |
| 摘 要： | 据丰谷地区须家河组的地表剖面、岩心和薄片、测井曲线及常规物性测试资料等的观察、对比分析,认为川西坳陷中段的丰谷地区上三叠统须家河组四段砂岩普遍具有低孔低渗、致密化强、超高压、岩性变化快、非均质性强等特点,但局部仍发育有孔渗性相对较好的层段.根据沉积作用及沉积相、成岩作用类型、构造作用方面来探讨丰谷地区须四段储层的特征及...
|
| 关 键 词： | 致密砂岩储层 次生溶孔 丰谷构造 川西坳陷 |
Characteristics of Tight Sand Reservoirs of the Member 4 of the Upper Triassic Xujiahe Formation in the Fenggu Structure, West Sichuan Depression |
| |
| LIU Chun-fu,LIU Shu-gen,ZHAO Xiao-fei,CHEN Yang.Characteristics of Tight Sand Reservoirs of the Member 4 of the Upper Triassic Xujiahe Formation in the Fenggu Structure, West Sichuan Depression[J].Acta Geologica Sichuan,2011,31(2):167-172,175. |
| |
| Authors: | LIU Chun-fu LIU Shu-gen ZHAO Xiao-fei CHEN Yang |
| |
| Institution: | (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology,Chengdu 610059) |
| |
| Abstract: | Field observation,logging data,core thin section study and physical property detection indicate that sandstone of the Member 4 of the Upper Triassic Xujiahe Formation in the Fenggu structure is a pore-fissure reservoir which is characterized by low porosity,low permeability and strong heterogeneity with local high porosity and permeability.The reservoir property is controlled by sedimentary and diagenesis type.The most favorable lithologic character is gray,grayish,medium-and coarse-grained lithic sandstone and lithic quartz sandstone in stream channel facies,intertidal and subtidal channel,sandbar and swash bar.The sandbody is characterized by large thickness and rapid changing lithologic character with carbonate cement.Secondary corrosion played an important role in improvement of reservoir property. |
| |
| Keywords: | tight sandstone reservoir secondary pore Fenggu structure west Sichuan depression |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
