| 山东省东营凹陷古近系沙河街组碎屑岩储层定量评价及油气意义 |
| |
| 引用本文： | 张琴,朱筱敏.山东省东营凹陷古近系沙河街组碎屑岩储层定量评价及油气意义[J].古地理学报,2008,10(5). |
| |
| 作者姓名： | 张琴 朱筱敏 |
| |
| 作者单位： | 中国石油大学(北京)教育部油气成藏机理重点实验室,北京,102249;中国石油大学(北京)油气资源与探测国家重点实验室,北京,102249 |
| |
| 基金项目： | 国家科技攻关项目
|
| |
| 摘 要： | 采用＂主因素＂定量评价方法对东营凹陷古近系沙河街组碎屑岩储层质量进行了评价。首先选取储集性能参数（孔隙度、渗透率）、颗粒分选性、泥质含量、粒径、埋藏压实程度、溶蚀作用及胶结作用强度等参数作为储层质量评价参数,按灰色关联分析法计算其他子因素相对于母因素—孔隙度的权重系数,然后,采用极大值标准化法计算各评价参数的单项分数,求取储层质量综合评价因子Q,在缺乏孔、渗资料的情况下,利用其他参数的权重系数,求得储层质量综合评价因子Q1。根据Q和Q1划分评价标准,并进行储层分类评价,结果与利用中国石油天然气集团总公司碎屑岩储层分类标准进行评价的结果基本一致。用此方法对沙河街组碎屑岩储层进行分类评价,把评价结果与试油结果进行比较,发现其符合率较高。这说明该定量评价方法用于储层综合评价具有可行性,根据Q或Q1的大小,可以快速直观地判定或预测某一地区某一层段的储层质量。
|
| 关 键 词： | 东营凹陷 沙河街组 碎屑岩储层 灰色关联分析法 储层定量评价 |
Quantitative assessment of clastic reservoir of the Paleogene Shahejie Formation in Dongying Sag of Shandong Province and its hydrocarbon significance |
| |
| Zhang Qin,Zhu Xiaomin.Quantitative assessment of clastic reservoir of the Paleogene Shahejie Formation in Dongying Sag of Shandong Province and its hydrocarbon significance[J].Journal of Palaeogeography,2008,10(5). |
| |
| Authors: | Zhang Qin Zhu Xiaomin |
| |
| Abstract: | The quantitative "primary factor" assessment method is used in this study to precisely evaluate the clastic reservoir properties of the Paleogene Shahejie Formation in the Dongying Sag. The parameters including reservoir capacity parameters(porosity and permeability), grain sorting, mudstone content, grain diameter, extent of burial and compaction, dissolution and cementation degree are chosen as the reservoir quality assessment parameters. Weight coefficients of other factors related to porosity which is the primary factor were obtained by grey correlation analysis. Then, the individual marks of each assessment parameters are calculated by the maximum standard method and the reservoir assessment classification was determined by the comprehensive reservoir quality assessment gene Q. When there are short of porosity and permeability data, the relevant weight coefficients of other factors were obtained by their correlations with porosity as well, and the comprehensive reservoir quality assessment gene Q1 was obtained by the same method as Q. The results of reservoir assessment according to Q and Q1 are consistent with those by the clastic reservoir classification criteria which were proposed by CNPC. The method is used to classify and evaluate the Shahejie Formation clastic reservoirs and the results were compared with the oil testing result. The two sets of results are highly consistent with each other. The analyses show that this method is practical in reservoir comprehensive assessment. According to the value of Q or Q1, the reservoir quality of some intervals in some areas can be quickly predicted. |
| |
| Keywords: | Dongying Sag Shahejie Formation clastic reservoir grey correlation analysis method reservoir quantitative assessment |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
