| 摘要: |
| 在沉积相研究的基础上，综合利用岩石铸体薄片、扫描电镜、X-衍射和镜质体反射率等实验室分析技术,对黄 骅坳陷北大港构造带沙河街组开展碎屑岩储层的岩石学特征和成岩作用研究，总结次生孔隙的发育分布规律，最终 探讨研究区储S储集性能的控制因素。结果表明:研究区储层孔隙类铟主要为次生孔隙，纵向上主要发育3个次生 孔隙带，有机酸、C02和黏土矿物转化是研究区次生孔隙形成的主要原因;沉积相类型、成岩作用、黏土矿物转化以及 烃类的早期充注对研究区碎屑岩储集性能具有重要的控制作用。 |
| 关键词: 黄骅坳陷 北大港构造带 沙河街组 碎屑岩储层 次生孔隙 |
| DOI： |
| 分类号: |
| 基金项目:国家“973”重点基础研究计划项3 (2006CB202300) |
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| Clastic reservoir characteristics of Shahejie formation in Beidagang structural belt of Huanghua depression and its controlling factors |
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SU Ni-na, JIN Zhen-kui, SONG Fan
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(School of Resource and Information Technology in China University of Petroleum, Beijing 102249, China)
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| Abstract: |
| Based on the study of sedimentary facies, the lithologic features and diagenesis of the clastic reservoir of Shahejie formation in Beidagang structural belt of Huanghua depression were investigated by means of laboratory analysis techniques such as casting thin sections, scanning electron microscope, X-ray diffraction and vitrinite reflectance. The distribution of secondary pores was summarized and eventually the controlling factors of reservoir property were discussed. The results show that the pore type of study are技 is mainly secondary pores and three secondary pore zones develop in longitudinal direction. Organic acid，carbon dioxide and clay mineral transformation are the main causes for the formation of secondary pores. The types of sedimentary facies，diagenesis，clay minerals transformation and early hydrocarbon invasion have important controlling effect on reservoir performance of the study area. |
| Key words: Huanghua depression Beidagang structural belt Shahejie formation clastic reservoir secondary pore |
