| 特低渗砂岩储层储集特征及其孔隙结构类型划分——以姬塬油田长6油层组砂岩储层为例 |
| |
| 引用本文： | 张茜,孙卫,任大忠,屈雪峰,雷启鸿.特低渗砂岩储层储集特征及其孔隙结构类型划分——以姬塬油田长6油层组砂岩储层为例[J].地质论评,2015,61(5):1192-1198. |
| |
| 作者姓名： | 张茜 孙卫 任大忠 屈雪峰 雷启鸿 |
| |
| 作者单位： | 大陆动力学国家重点实验室, 西北大学地质学系，西安, 710069；;大陆动力学国家重点实验室, 西北大学地质学系，西安, 710069；;大陆动力学国家重点实验室, 西北大学地质学系，西安, 710069；;低渗透油气田勘探开发国家工程实验室，西安, 710018;低渗透油气田勘探开发国家工程实验室，西安, 710018 |
| |
| 基金项目： | 本文为国家科技重大专项大型油气田及煤层气开发（编号 2011ZX05044）、陕西省科技统筹创新工程(编号 2011KTZB01 04 01)的成果。 |
| |
| 摘 要： | 应用常规物性、铸体薄片、扫描电镜、常规压汞、核磁共振等实验,着重分析姬塬地区长6油层组微观孔隙结构类型划分及其对可动流体饱和度的影响。研究表明:该区的储集空间主要为原生粒间孔、其次为长石溶孔;根据毛管压力曲线形态以及相应的参数,将储层孔隙结构分为Ⅰ类、Ⅱ类、Ⅲ类、Ⅳ类,四类孔隙结构对应储集空间不同,其储集性能和渗流能力依次变差;核磁共振测得T_2谱图形态与其所对应孔喉半径进汞饱和度分布形态相似,T_2值大小与孔喉半径大小呈正相关性,孔喉半径是影响可动流体分布的主要因子,渗透率与可动流体饱和度呈较好的正相关性,是表征孔隙结构渗流能力的直观参数。
|
| 关 键 词： | 姬塬地区 长6储层 微观孔隙结构 核磁共振 可动流体饱和度 孔喉半径 渗透率 |
| 收稿时间： | 2014/6/25 0:00:00 |
| 修稿时间： | 2014/9/16 0:00:00 |
The Feature of Ultra Low Permeability Reservoir and the Types of the Microscopic Pore Structure——Taken Chang-6 Oil-bearing Formation in Jiyuan Oilfield of Ordos Basin as an Example |
| |
| ZHANG Xi,SUN Wei,REN Dazhong,QU Xuefeng and LEI Qihong.The Feature of Ultra Low Permeability Reservoir and the Types of the Microscopic Pore Structure——Taken Chang-6 Oil-bearing Formation in Jiyuan Oilfield of Ordos Basin as an Example[J].Geological Review,2015,61(5):1192-1198. |
| |
| Authors: | ZHANG Xi SUN Wei REN Dazhong QU Xuefeng and LEI Qihong |
| |
| Abstract: | Aiming at several problems in Jiyuan Oilfield of Ordos Basin, strong heterogeneity, complex micro pore structure, its effect on saturation of mobile fluid and so on, the writers conduct a series experiments including the techniques of physical properties, casting thin slice, the SEM, particle size, high pressure mercury penetratio and nuclear magnetic resonance. The research shows that the reservoir space can be divided into primary pore, secondary pore and microfracture. Based on the capillary pressure curve and its corresponding parameters, the writers divide the pore structures into four types. Different pore structure correspond to different reservoir space. Affected by its micro pore structure, the reservoir capacity and percolation ability of the reservoirs gets worse successively. The movable fluid saturation of NMR is similar to its parameters of pores structure. The throat characteristic and the connectivity between pore throats are the crucial factor that decide if physical quality is good in low permeability layer, besides permeability also have an effect on the saturation of movable fluid. |
| |
| Keywords: | Jiyuan Oilfield Chang 6 reservoir micro pore structure NMR movable fluid saturation pore throat radius permeability |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《地质论评》浏览原始摘要信息 |
| 点击此处可从《地质论评》下载免费的PDF全文 |
|
