| 川西坳陷新场气田上三叠统须家河组须四、须二段储集层成岩-储集相及其成岩演化序列 |
| |
| 引用本文： | 徐樟有,吴胜和,张小青,赵艳,曾小英,张晓玉.川西坳陷新场气田上三叠统须家河组须四、须二段储集层成岩-储集相及其成岩演化序列[J].古地理学报,2008,10(5):447-458. |
| |
| 作者姓名： | 徐樟有 吴胜和 张小青 赵艳 曾小英 张晓玉 |
| |
| 作者单位： | 1.中国石油大学（北京），北京 102249;2.油气资源与探测国家重点实验室，中国石油大学（北京），北京 102249;3.中石化西南油气分公司勘探开发研究院，四川成都 610016 |
| |
| 基金项目： | 中国石油天然气集团公司资助项目
|
| |
| 摘 要： | 通过对川西坳陷新场气田上三叠统须家河组须四、须二段储集层成岩作用类型及其特征研究，认为储集层主要经历了压实压溶作用、自生矿物胶结作用和溶解作用3种类型。储集层成岩-储集相可以划分成5种，即强溶解成岩-储集相、绿泥石衬边粒间孔成岩-储集相、压实压溶成岩-储集相、碳酸盐胶结成岩-储集相和石英次生加大成岩-储集相。不同的储集层成岩-储集相由于经历了不同的成岩演化序列，使得储集层中的残余原生粒间孔和次生溶孔的形成条件各不一样，储集层中孔隙的保存主要决定于孔隙被压实、自生矿物的充填、多期的溶解作用等因素，并与孔隙中发育的绿泥石衬边有紧密联系。在上述5种成岩-储集相中，有效的成岩-储集相只有两种，即强溶解成岩-储集相和绿泥石衬边粒间孔成岩-储集相，它们对须家河组须四、须二段优质储层的形成起着至关重要的作用，而其它几种成岩-储集相对优质储层的形成是无效的。
|
| 关 键 词： | 川西坳陷 新场气田 上三叠统 须家河组 低渗储集层 成岩.储集相 |
Diagenetic-reservoir facies and their evolutionary sequences of the Members 4 and 2 of Upper Triassic Xujiahe Formation in Xinchang Gasfield,western Sichuan Depression |
| |
| Xu Zhangyou,Wu Shenghe,Zhang Xiaoqing,Zhao Yan,Zeng Xiaoying,Zhang Xiaoyu.Diagenetic-reservoir facies and their evolutionary sequences of the Members 4 and 2 of Upper Triassic Xujiahe Formation in Xinchang Gasfield,western Sichuan Depression[J].Journal of Palaeogeography,2008,10(5):447-458. |
| |
| Authors: | Xu Zhangyou Wu Shenghe Zhang Xiaoqing Zhao Yan Zeng Xiaoying Zhang Xiaoyu |
| |
| Institution: | 1 China University of Petroleum（Beijing）, Beijing 102249;
2 State Key Laboratory of Petroleum Resource and Prospecting ,China University of Petroleum( Beijing）, Beijing 102249;
3 Research Institute of Exploration and Development, SINOPEC Southwest Company,Chengdou 610016,Sichuan |
| |
| Abstract: | Based on the studies of reservoir diagenesis types and their characteristics of the Members 4 and 2 of the Upper Triassic Xujiahe Formation in the Xinchang Gasfield, it is concluded that the reservoir diagenesis mainly includes the pressolution, the authigenic mineral cementation and the dissolution. The diagenetic-reservoir facies is divided into 5 types, namely as, the intense dissolution diagenetic-reservoir facies, the chlorite lining intergranular pore diagenetic-reservoir facies, the pressolution diagenetic-reservoir facies, the carbonate cementation diagenetic-reservoir facies and the quartz secondary overgrowth diagenetic-reservoir facies. The formation conditions of the relic primary intergranular pores and secondary dissolution pores in the reservoirs are different due to their different diagenetic evolutionary sequences. The preservation of pores in reservoir is mainly controlled by the compaction of pores, the filling of authigenic minerals and the multi-stages dissolution, as well as the chlorite lining developed in the pores. The effective diagenetic-reservoir facies of the 5 types are respectively the intense dissolution diagenetic-reservoir facies and chlorite lining intergranular pore diagenetic-reservoir facies. They play an important role in the formation of the reservoir of the Members 4 and 2 of the Xujiahe Formation, while the other diagenetic reservoir facies are ineffective for the formation of high quality reservoir. |
| |
| Keywords: | western Sichuan Depression Xinchang Gasfield Upper Triassic Xujiahe Formation low-permeable reservoir diagenetic-reservoir facies |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《古地理学报》浏览原始摘要信息 |
| 点击此处可从《古地理学报》下载免费的PDF全文 |
