| 鄂尔多斯盆地姬塬油田长8储层微观孔隙结构特征 |
| |
| 引用本文： | 李永胜,刘学刚,章志锋,王荣.鄂尔多斯盆地姬塬油田长8储层微观孔隙结构特征[J].石油化工应用,2013,32(4):63-69. |
| |
| 作者姓名： | 李永胜 刘学刚 章志锋 王荣 |
| |
| 作者单位： | 1. 低渗透油气田勘探开发国家工程实验室,陕西西安710021;中国石油长庆油田分公司勘探开发研究院,陕西西安710021
2. 中国石油长庆油田分公司第三采油厂,宁夏银川,750006 |
| |
| 摘 要： | 采用铸体薄片、扫描电镜和压汞分析技术,对姬塬油田长8油层组储层微观孔隙结构特征进行了分析和研究。结果表明,姬塬油田长8储层属于低孔、超低渗储层,孔喉分选性较差、连通性一般。根据孔隙结构特征相关参数将毛管压力曲线分为4类,研究区主要以Ⅰ类和Ⅱ类为主。从Ⅰ类到Ⅳ类,排驱压力和中值压力逐渐增大,中值半径和平均喉道半径逐渐减小,反映出储层的孔隙结构和渗流能力由好变差。
|
| 关 键 词： | 孔隙结构 特征参数 毛管压力曲线 长8储层 |
Study microscopic pore structure characteristics of chang 8 reservoir of Jiyuan oilfield by capillary curves |
| |
| LI Yongsheng
,
LIU Xuegang
,
ZHANG Zhifeng
,
WANG Rong.Study microscopic pore structure characteristics of chang 8 reservoir of Jiyuan oilfield by capillary curves[J].Petrochemical Industry Application,2013,32(4):63-69. |
| |
| Authors: | LI Yongsheng LIU Xuegang ZHANG Zhifeng WANG Rong |
| |
| Affiliation: | 1.National Engineering Laboratory for Exploration and Development of Low Permeability Oil and Gasfields,Xi′an Shanxi 710021,China;2.Exploration and Development Research Institute of PetroChina Changqing Oilfield Company,Xi′an Shanxi 710021,China;3.Oil Production Plant 3 of PetroChina Changqing Oilfield Company,Yinchuan Ningxia 750006,China) |
| |
| Abstract: | By thin section analysis, SEM, mercury injection method, the microscopic pore structure characteristics of Chang 8 reservoir of Jiyuan oilfield are studied. The result shows that Chang 8 reservoir belongs to low-porosity and ultra-lowpermeability reservoir of Jiyuan Oilfield. The pore and throat have general sorting and communication. The capillary pressure curve is divided into 4 types according to the characteristic parameters of pore structure. The type Ⅰ and Ⅱ are the main types in the study area. With capillary pressure curve changing from Ⅰ type to Ⅳ type, the driving pressure and Pc50 increase gradually, and Rc50 and average pore throat radius decrease gradually, which reflects that pore structure and reservoir property change from good to poor. |
| |
| Keywords: | pore structure characteristic parameters capillary pressure curve Chang 8 reservoir |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
