鄂尔多斯盆地延长地区山西组页岩储层特征及影响因素

汶锋刚; 朱玉双; 任战利; 倪军; 高鹏鹏

doi:10.11781/sysydz201806778

鄂尔多斯盆地延长地区山西组页岩储层特征及影响因素

doi: 10.11781/sysydz201806778

1. 西北大学地质学系, 西安 710069;
2. 陕西延长石油(集团)有限责任公司研究院, 西安 710075;
3. 西安石油大学外国语学院, 西安 710065

基金项目:

国家科技重大专项“延安地区陆相页岩气勘探开发关键技术”（2017ZX05039）资助。

详细信息

作者简介:
汶锋刚(1981-),男,博士在读,高级工程师,从事油气田勘探与开发研究。E-mail:ycsywfg@163.com。

通讯作者:
朱玉双(1968-),女,博士生导师,教授,从事油藏评价和描述、剩余油挖潜等领域的教学和科研工作。E-mail:yshzhu@nwu.edu.cn。

中图分类号: TE122.23
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出版历程
- 收稿日期: 2018-01-30
- 修回日期: 2018-09-30
- 刊出日期: 2018-11-28

Reservoir porosity characteristics and controls of the Shanxi Formation shale reservoir, Yanchang area, Ordos Basin

1. Department of Geology, Northwest University, Xi'an, Shaanxi 710069, China;
2. Institute of Shannxi Yanchang Petroleum Group Co., Ltd, Xi'an, Shaanxi 710075, China;
3. School of Foreign Languages, Xi'an Shiyou University, Xi'an, Shaanxi 710065, China

摘要

摘要: 利用氩离子抛光片进行SEM观测，从微观尺度分析了鄂尔多斯盆地延长地区山西组页岩储层中的储集空间类型及其对应孔径发育情况；采用氦气膨胀法、压汞法、低压氮气吸附、二氧化碳吸附、核磁共振等定量化的测试手段，利用全孔径孔隙结构定量表征方法，对该储层物性和孔隙结构进行了测试分析，确定了不同岩石类型的孔隙结构特征；进一步结合储层的岩石矿物学特征和地化特征，从不同尺度讨论了影响山西组储层孔隙发育和保存的各种地质因素。结果显示：山西组泥页岩层系中不同类型岩石的孔隙类型、孔径和孔隙度等均存在差异，同一类型岩石中不同类型孔隙的孔径及发育特征也有所不同。粉砂质页岩有机质含量（沥青含量）是决定其孔隙度和中大孔发育的决定性因素。在低TOC页岩中，石英长石含量是影响孔隙度的最主要的因素，呈正相关性。有机质含量对于高TOC黏土质页岩孔隙度具有正向的影响，而刚性颗粒粒径和黏土矿物含量则表现出明显的负向影响。
- 储集空间特征 /
- 页岩储层 /
- 山西组 /
- 延长地区 /
- 鄂尔多斯盆地
Abstract: The micro-scale shale reservoir porosity type and the corresponding pore size distribution of the Shanxi Formation in the Yanchang exploration area of the Ordos Basin were analyzed using argon ion polished sections for SEM observation. Helium gas expansion, mercury injection, low pressure nitrogen adsorption, carbon dioxide adsorption, nuclear magnetic resonance (NMR) tests and full pore-size quantitative characterization were applied to study the reservoir physical properties and the pore structure of various rock types. Various geological factors influencing the reservoir pore development and preservation of the Shanxi Formation were discussed from different aspects combined with the mineralogical and geochemical characteristics of reservoir rocks. Results showed that there were differences in pore types, pore sizes and porosity of different rock types of the Shanxi mud shale formation, and there were differences in pore size and development characteristics of different pore types of the same rock type. The organic matter content (asphalt content) of silty shale was decisive for porosity and middle-large pore development. In low TOC shale, quartz feldspar content is a main factor that affects porosity, showing a positive correlation. Organic matter content has a positive influence on the porosity of the high TOC argillaceous shale, while rigid particle size and argillaceous mineral content show a clear negative relationship.
- reservoir space characteristics /
- shale reservoir /
- Shanxi Formation /
- Yanchang area /
- Ordos Basin

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参考文献(24)

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鄂尔多斯盆地延长地区山西组页岩储层特征及影响因素

doi: 10.11781/sysydz201806778

作者简介:
汶锋刚(1981-),男,博士在读,高级工程师,从事油气田勘探与开发研究。E-mail:ycsywfg@163.com。

通讯作者:
朱玉双(1968-),女,博士生导师,教授,从事油藏评价和描述、剩余油挖潜等领域的教学和科研工作。E-mail:yshzhu@nwu.edu.cn。

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Reservoir porosity characteristics and controls of the Shanxi Formation shale reservoir, Yanchang area, Ordos Basin

计量

目录

留言板

鄂尔多斯盆地延长地区山西组页岩储层特征及影响因素

doi: 10.11781/sysydz201806778

作者简介: 汶锋刚(1981-),男,博士在读,高级工程师,从事油气田勘探与开发研究。E-mail:ycsywfg@163.com。

通讯作者: 朱玉双(1968-),女,博士生导师,教授,从事油藏评价和描述、剩余油挖潜等领域的教学和科研工作。E-mail:yshzhu@nwu.edu.cn。

计量

出版历程

Reservoir porosity characteristics and controls of the Shanxi Formation shale reservoir, Yanchang area, Ordos Basin

计量

出版历程

目录

作者简介:
汶锋刚(1981-),男,博士在读,高级工程师,从事油气田勘探与开发研究。E-mail:ycsywfg@163.com。

通讯作者:
朱玉双(1968-),女,博士生导师,教授,从事油藏评价和描述、剩余油挖潜等领域的教学和科研工作。E-mail:yshzhu@nwu.edu.cn。