| 鄂尔多斯盆地志靖—安塞地区延长组长10储层特征及评价 |
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| 引用本文： | 喻建, 张严, 赵会涛, 杨孝, 侯英东, 罗顺社. 鄂尔多斯盆地志靖—安塞地区延长组长10储层特征及评价[J]. 地质与资源, 2019, 28(4): 364-371. |
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| 作者姓名： | 喻建 张严 赵会涛 杨孝 侯英东 罗顺社 |
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| 作者单位： | 1.中国石油长庆油田分公司勘探部, 陕西 西安 710018; 2.长江大学 地球科学学院, 湖北 武汉 430100; 3.中国石油长庆油田勘探开发研究院, 陕西 西安 710021; 4.非常规油气湖北省协同创新中心, 湖北 武汉 430100 |
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| 基金项目： | 国家科技重大专项资助项目（2016ZX056004-001）；中国石油天然气股份有限公司科技重大专项（编号2016E-0502）. |
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| 摘 要： | 利用岩心资料、岩石薄片、铸体薄片、压汞资料、扫描电镜、X衍射及核磁共振等资料，对志靖-安塞地区长10储层进行分析，结果显示，志靖-安塞地区长10储层岩性主要为长石砂岩、岩屑质长石砂岩，孔隙类型以粒间孔、长石溶孔以及浊沸石溶孔为主，物性较好，孔隙度、渗透率分别为11.4%、2.35 mD，但非均质性较强.通过对东西部物性差异性形成机理进行研究，认为区内东部地区储层物性优于西部地区，主要是由于东部地区具有良好的物质基础以及来自长9烃源岩更多的酸性物质，促使其溶蚀空隙更为发育造成的.志靖-安塞地区可划分为4类储层，其中Ⅰ、Ⅱ类储层主要发育在东部地区，西部地区少见或不发育，Ⅲ类储层分布面积广，但物性较差，Ⅳ类储层大部分为非有效储层.
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| 关 键 词： | 储层评价 延长组 长10储层 志靖-安塞地区 鄂尔多斯盆地 |
| 收稿时间： | 2018-09-03 |
| 修稿时间： | 2018-12-07 |
CHARACTERISTICS AND EVALUATION OF C-10 RESERVOIR IN ZHIJING-ANSAI AREA,ORDOS BASIN |
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| YU Jian, ZHANG Yan, ZHAO Hui-tao, YANG Xiao, HOU Ying-dong, LUO Shun-she. CHARACTERISTICS AND EVALUATION OF C-10 RESERVOIR IN ZHIJING-ANSAI AREA, ORDOS BASIN[J]. Geology and Resources, 2019, 28(4): 364-371. |
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| Authors: | YU Jian ZHANG Yan ZHAO Hui-tao YANG Xiao HOU Ying-dong LUO Shun-she |
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| Affiliation: | 1.Exploration Department of Changqing Oilfield Branch, CNPC, Xi'an 710018, China; 2.School of Geosciences, Yangtze University, Wuhan 430100, China; 3.Changqing Oilfield Exploration and Development Research Institute, CNPC, Xi'an 710021, China; 4.Hubei Cooperative Innovation Center of Unconventional Oil and Gas, Wuhan 430100, China |
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| Abstract: | The C-10 reservoir in Zhijing-Ansai area is analyzed with the data of core, rock thin section, casting thin section, mercury injection, SEM, X-ray diffraction and NMR. The results show that the lithology of C-10 reservoir is mainly arkose and lithic arkose, and the pore types are dominated by intergranular pores, feldspar dissolution pores and laumontite dissolution pores with good physical properties. The porosity and permeability are 11.4% and 2.35 mD respectively with strong heterogeneity. By studying the formation mechanism of physical differences between the east and west of the area, it is concluded that the reservoir physical property in the east is better than that in the west, mainly resulting from the good material foundation of the east and more acidic materials from C-9 source rocks, which promotes the development of dissolution pores. The Zhijing-Ansai area can be divided into 4 types of reservoir, among which the types I and II are mainly developed in the east, rare or undeveloped in the west. The type III is widely distributed, but poor in physical properties, while the type IV is mostly non-effective reservoir. |
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| Keywords: | reservoir evaluation Yanchang Formation C-10 reservoir Zhijing-Ansai area Ordos Basin |
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