鄂尔多斯盆地苏里格气田东区储层含气物性下限分析

陈占军; 任战利; 王树慧; 刘平; 薛雯; 邓亚仁; 祁凯; 曹展鹏

doi:10.11781/sysydz201604521

鄂尔多斯盆地苏里格气田东区储层含气物性下限分析

doi: 10.11781/sysydz201604521

陈占军^1,2,
任战利^1,2, ,,
王树慧³,
刘平³,
薛雯³,
邓亚仁^1,2,
祁凯^1,2,
曹展鹏^1,2

1.
西北大学地质学系, 西安 710069
2. 大陆动力学教育部重点实验室, 西安 710069
3. 中国石油长庆集团分公司苏里格气田研究中心, 西安 716000

基金项目: 国家自然科学基金（41372128）、西北大学大陆动力学国家重点实验室科技部专项（BJ08133-1）和国家重大专项（2011ZX05005-004-007HZ）资助。

详细信息

作者简介:
陈占军(1982—),男,在读博士,从事油气成藏与开发研究。E-mail:john_wudy@163.com。

通讯作者:
任战利(1961—),男,研究员,博士生导师,从事盆地热演化史与油气成藏及评价研究。E-mail:renzhanl@nwu.edu.cn。

中图分类号: TE122.2
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出版历程
- 收稿日期: 2015-10-16
- 修回日期: 2016-06-14
- 刊出日期: 2016-07-28

Lowest limit for the gas-bearing capacity of reservoirs in the eastern Sulige gas field, Ordos Basin

Chen Zhanjun^1,2,
Ren Zhanli^{1,2
, ,},
Wang Shuhui³,
Liu Ping³,
Xue Fen³,
Deng Yaren^1,2,
Qi Kai^1,2,
Cao Zhanpeng^1,2

1.
Department of Geology, Northwest University, Xi'an, Shaanxi 710069, China
2. State Key Laboratory of Continental Dynamics, Northwest University, Xi'an, Shaanxi 710069, China
3. Petro-China Changqing Oilfield Company, Xi'an, Shaanxi 716000, China

摘要

摘要: 以鄂尔多斯盆地苏里格气田东区的勘探开发资料为基础，根据储层含油气物性下限的定义与特点，运用统计方法与成藏机理方法对东区储层含气物性下限进行了研究。结果表明，2种方法得出的储层含气物性下限值基本接近，盒8段储层含气的孔隙度下限为2.223%，渗透率下限为0.005 7×10^-3μm²；山1段储层含气的孔隙度下限为1.605%，渗透率下限为0.004 4×10^-3μm²，含气物性下限与充注动力负相关，盒8段含气物性下限大于山1段。通过实测资料寻找含气物性下限附近的储层，对连续取样进行含气饱和度测定，分析表明，物性在含气物性下限附近的储层含气饱和度极低，物性高于含气物性下限的储层含气饱和度显著升高。理论分析结果与取心实测结果基本一致。
- 含气物性下限 /
- 充注动力 /
- 成藏机理 /
- 上古生界 /
- 苏里格气田 /
- 鄂尔多斯盆地
Abstract: According to the definition and characteristics of the lowest limit for reservoir gas-bearing capacity, we carried out statistical and accumulation mechanism studies in the eastern Sulige gas field in the Ordos Basin. The two methods reached a similar conclusion. The lowest limits for the porosity and permeability of the eighth member of Shihezi Formation (He8) are 2.223% and 0.005 7×10^-3 μm², respectively. The lowest limits for the porosity and permeability of the first member of Shanxi Formation (Shan1) are 1.605% and 0.004 4×10^-3 μm², respectively, which are both higher than those of He8. The lowest limit for reservoir gas-bearing capacity is negatively related to charging force. We collected samples from the reservoirs with physical properties close to the lowest limit, and tested their gas saturation. The gas saturation of the reservoirs with physical properties close to the lowest limit is extremely low, and obviously increases in reservoirs with better physical properties. Theoretical analyses are consistent with coring results.
- lowest limit for gas-bearing capacity /
- charging force /
- accumulation mechanism /
- Upper Paleozoic /
- Sulige gas field /
- Ordos Basin

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