| 鄂尔多斯盆地直罗油田长6油层组成岩作用及孔隙演化研究 |
| |
| 引用本文： | 王彩萍.鄂尔多斯盆地直罗油田长6油层组成岩作用及孔隙演化研究[J].西安地质学院学报,2010(2):161-165. |
| |
| 作者姓名： | 王彩萍 |
| |
| 作者单位： | [1]西安石油大学油气资源学院,陕西西安710065 [2]陕西延长石油（集团）有限责任公司直罗采油厂,陕西富县727500 |
| |
| 基金项目： | 国家自然科学基金项目（40173005） |
| |
| 摘 要： | 位于鄂尔多斯盆地的直罗油田三叠系延长组长6油层组为近年来新开发的一个主力油气产层。岩石学和成岩作用特征研究表明,直罗油田长6油层组以细粒长石砂岩和岩屑长石砂岩为主,砂岩经历了机械压实作用、胶结作用、交代作用和溶蚀作用等成岩作用,成岩作用处于晚成岩阶段A期。成岩作用控制了储层砂岩孔隙发育特征,其中压实作用与胶结作用是导致储层超低渗的主导因素,而次生溶蚀孔隙的形成对储层砂岩物性具有一定改造作用,并控制了该区长6油层组相对高孔高渗储层的展布特征。
|
| 关 键 词： | 成岩作用 成岩阶段 孔隙类型 长6油层组 直罗油田 鄂尔多斯盆地 |
Diagenesis and Porosity Evolution of Chang-6 Oil-bearing Formation in Zhiluo Oilfield of Ordos Basin |
| |
| Authors: | WANG Cai-ping |
| |
| Institution: | WANG Cai-ping,(1.School of Petroleum Resources,Xi＇an Shiyou University,Xi＇an 710065,Shaanxi,China;2.Zhiluo Oil Recovery Factory,Shaanxi Yanchang Petroleum(Group) Company Limited,Fuxian 727500,Shaanxi,China) |
| |
| Abstract: | Chang-6 Oil-bearing Formation of Triassic Yanchang Formation in Zhiluo Oilfield of Ordos Basin is weightily exploited in recent years.Characteristic of petrology and diagenesis of the oil-bearing formation was studied.The result showed that Chang-6 Oil-bearing Formation was composed by fine-grained and debris feldspar sandstones;sandstone experienced complex diagenesis including compaction,cementation,alteration and dissolution;diagenesis reached A period in the late diagenetic stage.Diagenesis controlled reservoir porosity of sandstones in which compaction and cementation caused low permeability while secondary vugular-solution pore improved the reservoir property and controlled distribution characteristics of Chang-6 Oil-bearing Formation with relatively high permeability and porosity. |
| |
| Keywords: | diagenesis diagenetic stage pore type Chang-6 Oil-bearing Formation Zhiluo Oilfield Ordos Basin |
| 本文献已被 维普 等数据库收录！ |
|
