| 摘要: |
| 针对坪北油田勘探开发特点及其所出现的问题,笔者运用多层次基准面旋回和可容空间变化原理,通过分析由基准面变化导致的沉积地层记录和层序界面类型、规模及地层的堆叠样式的差异,在对长4+5-长6油组基准面旋回层序精细划分和等时对比的基础上,讨论等时地层格架内砂体时空演化规律,并探讨了基准面变化与储层物性的关系。 |
| 关键词: 上三叠统 基准面旋回 储层物性 坪北油田 陕西 |
| DOI： |
| 附件 |
| 投稿时间：2003-05-16 |
| 基金项目: |
|
| Stratigraphic base-level cycles and physical properties of the reservoir sandstones in the Chang 4+5 and Chang-6 oil formations of the Upper Triassic Yanchang Formation in the Pingbei Oil Field, Shaanxi |
| ZHANG Shang-feng, ZHANG Chang-min, CHEN Xin-min, YAO Feng-ying |
(1. Chengdu University of Technology, Chengdu 610059, Sichuan, China;
2. Jianghan College of Petroleum, Jingzhou 434023, Hubei, China;
3. Jianghan Oil Field Branch, S INOPEC, Qianjiang 433100, Hubei, China) |
| Abstract: |
| The development and distribution of the reservoir sandstones are noticeably different in the fourth bed of the Chang 4+5 and Chang-6 oil formations of the Upper Triassic Yanchang Formation in the Pingbei Oil Field. And other differences are also manifested in the ratios of the sandstone thickness in subaqueous distributary channels, subaqueous crevasse splays and channel-mouth bars to the stratial thickness, and the proportions of the reservoir sandstone thickness in various sedimentary microfacies. The physical properties of the reservoir sandstones are almost identical in varying base levels. The base-level cycle analysis is here believed to be significant in the examination of the development and distribution of the reservoir sandstones, physical properties of the reservoir sandstones, and the exploration and development of the Pingbei Oil Field. |
| Key words: Upper Triassic base-level cycle physical properties of reservoir sandstones Pingbei Oil Field Shaanxi |
