西安科技大学学报2013，Vol.33Issue(1)：33-38,6.
陕北地区三叠系延长组长10段油藏原油特征及其来源
Reservoir crude oil features of the Chang 10 layer in the north of Shaanxi province
李玉宏 1孟祥振 2罗然昊 2刘凤妍 3姜亭1
作者信息
- 1. 西安地质矿产研究所,陕西西安710054
- 2. 延长油田股份公司,陕西延安716000
- 3. 中国石油华北油田分公司物探研究院,河北任丘062550
- 折叠
摘要
Abstract
Baed on crude oil features' s analysis of the Yanchang formation and the Jurrasic in the north of Shanxi province, the authors divide type of crude oil and mainly decide the origin of crude oil in the Chang 10. In research area, the pool in the Chang 10 layre is lithologic oil pool which is controlled by structure and dictribute in the region with good physical property in high position of structure noses. Crude oil has characteristics of low density, low viscsity and high wax content and there is an gradually reduceing content order of saturated hydrocarbon, aromatic hydrocarbon and non-hydrocarbon. According to biomarker composition including sterane and terpane, crude oils are divided into two types of A and B. In type A of oil, 17α( H) -rearangement hopane < 17α(H), 21β( H) - 30 - norhopane < 17α (H) , 21β(H)-hopane,content of 17α(H)-rearangement hopane is very low,Ts content is colse to Tm' s and tricycle terpane content is lower. Source rock of type A of oil is oil shale in the Chang 7 layer. In type B of oil, content of 17α(H)-rearangement hopane is higher and exceed 17a(H) ,21β(H) -30 -norhopane sometimes, Ts content is higher obviously than Tm' s, tricycle terpane content is higher. Source rock of type B of oil is mudstone in the Chang 9 layer and partial of the Chang 10 layer.关键词
原油/油源对比/延长组长10段/陕北地区/鄂尔多斯盆地Key words
crude oil/ oil-source correlation/ Chang 10 layer/Ansai area/ Ordos Basin分类
能源科技引用本文复制引用
李玉宏,孟祥振,罗然昊,刘凤妍,姜亭..陕北地区三叠系延长组长10段油藏原油特征及其来源[J].西安科技大学学报,2013,33(1):33-38,6.
