| 引用本文: | 李军, 胡光明, 李强, 胡晨钰, 许玛丽, 李积永, 李汉阳.柴达木盆地扎X井区上新统下油砂山组Ⅳ油层组成岩作用研究[J].沉积与特提斯地质,2019,39(3):65-72.[点击复制] |
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| 柴达木盆地扎X井区上新统下油砂山组Ⅳ油层组成岩作用研究 |
| 李军1,胡光明1,李强1,胡晨钰1,许玛丽1,李积永2,李汉阳2 |
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(1. 长江大学地球科学学院, 湖北 武汉 430100;
2. 中国石油青海油田分公司勘探开发研究院, 甘肃 敦煌 736202) |
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| 摘要: |
| 柴达木盆地扎X井区目前是扎哈泉区块产量的主要贡献区，也是后期建产重要的潜力区。通过对X井区上新统下油砂山组IV油层组综合研究，认为其属于中孔中低渗储层，处于中成岩阶段A期。压实作用对储层物性的影响较小，胶结作用是孔隙减小的主要原因，溶蚀作用对孔隙的增加有一定的建设作用。 |
| 关键词: 柴达木盆地 扎哈泉 IV油层组 成岩作用 成岩阶段 |
| DOI： |
| 附件 |
| 投稿时间：2019-04-15修订日期：2019-07-17 |
| 基金项目:国家自然科学基金项目（41472097）；中国石油重大科技专项（2016E01） |
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| Diagenesis of the IV oil reservoirs of the Pliocene Xiayoushashan Formation in the Zha-X well area, Qaidam Basin, Qinghai |
| LI Jun1, HU Guangming1, LI Qiang1, HU Chenyu1, XU Mali1, LI Jiyong2, LI Hanyang2 |
(1. School of Geosciences, Yangtze University, Wuhan 430100, Hubei, China;
2. Research Institute of Petroleum Exploration and Development, Qinghai Oil Field Company, CNPC, Dunhuang 736202, Gansu, China) |
| Abstract: |
| The Zha-X well area in the Qaidam Basin, Qinghai is currently interpreted as the main production area in the Zhahaquan block, and also an important potential area for the future production. The integrated studies show that the IV oil reservoirs of the Pliocene Xiayoushashan Formation in the Zha-X well area have mesoporosity and moderate to low permeability and are assigned to the anadiagenetic A stage. The diagenetic types include compaction, cementation and dissolution. The compaction may exert the limited effects on the physical properties of the reservoir rocks. The cementation is responsible for the decrease of the porosity of the reservoir rocks while the dissolution may have constructive effects for the generation of the secondary porosity of the reservoir rocks in the study area. |
| Key words: Qaidam Basin Zhahaquan IV oil reservoirs diagenesis diagenetic stage |