| 柴达木盆地北缘断裂构造分形特征与油气分布关系研究 |
| |
| 引用本文： | 曾联波,金之钧,李京昌,汤良杰,由福报,雷兵足.柴达木盆地北缘断裂构造分形特征与油气分布关系研究[J].地质科学,2001,36(2):241-247. |
| |
| 作者姓名： | 曾联波 金之钧 李京昌 汤良杰 由福报 雷兵足 |
| |
| 作者单位： | 1. 石油大学地球科学系 北京 102200;2. 青海石油管理局 甘肃敦煌 736202 |
| |
| 基金项目： | 中国石油天然气集团公司“九五”油气勘探科技工程项目! (编号 :970 2 0 8-0 2 -0 3)部分成果 |
| |
| 摘 要： | 本文应用分形几何理论对柴达木盆地北缘断裂体系的分布进行了定量研究,在研究标定尺度范围内,该区断裂体系的平面分布具有良好的统计自相似性和分形特征,在双对数坐标系中,用最小二乘法进行直线拟合的相关系数平方(R2)均在0.97以上。该区4个已知油气田断裂构造的分维数D值均大于1.3,明显高于整个区域内4个反射层的断层分维数(平均D=1.218)。可以认为断裂构造的分维值大于1.3的部位是该区油气聚集分布的有利区。断裂体系分数维值越大的地区,有利于油气藏的分布,其单位面积内的油气地质储量越高。
|
| 关 键 词： | 断裂体系 分形几何 油气分布 柴达木盆地北缘 |
| 收稿时间： | 2000-03-06 |
| 修稿时间： | 2000年3月6日 |
FRACTAL CHARACTERISTICS OF FRACTURAL STRUCTURES AND ITS RELATION TO OIL-GAS DISTRIBUTION IN NORTH QAIDAM BASIN |
| |
| Zeng Lianbo,Jin Zhijun,Li Jingchang,Tang Liangjie.FRACTAL CHARACTERISTICS OF FRACTURAL STRUCTURES AND ITS RELATION TO OIL-GAS DISTRIBUTION IN NORTH QAIDAM BASIN[J].Chinese Journal of Geology,2001,36(2):241-247. |
| |
| Authors: | Zeng Lianbo Jin Zhijun Li Jingchang Tang Liangjie |
| |
| Institution: | 1. University of Petrolum, Beijing 102200;2. Qinghai Petroleum Administration, Gansu 736202 |
| |
| Abstract: | To apply the principle of fractal geometry on study of the two dimensional distribution of fracture systems, the fracture systems have the statistical self similar characters and fractal characteristics in the scale extent studied in the North Qaidam Basin. The square of correlation coefficients( R 2 )by least squares lines fitting are more than 0 97 in log log coordinate system of box counting number and the scale. The D values of fractal dimension of fracture systems in 4 known oil and gas fields are more than 1.3, which is obviously higher than that of the whole district of 4 reflection layer(the average D value is 1.218). The locations that the D values of fractal dimension of fracture system exceed 1.3 are favorable to accumulate oil and gas. The higher the D value,the more favorable the conditions and larger the abundance of oil and gas. |
| |
| Keywords: | Fracture system Fractal geometry Oil and gas distribution The North Qaidam Basin |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地质科学》浏览原始摘要信息 |
| 点击此处可从《地质科学》下载免费的PDF全文 |
