Geochemical Characteristics of Permian Heavy Oil and Its Origin in Jimsar Sag,Xinjiang Province
Received date: 2011-09-14
Revised date: 2011-11-30
Online published: 2012-02-10
In the thick oil girdle of the slope area of Jimsar sag,the oil as ordinary heavy oil is characterized as high density,high viscosity,high initial boiling point,low freezing points and low wax content.This heavy oil at low maturity has well preserved β-carotane and-carotane,regular sterane as the main ingredient,low level of triterpene terpane,and the increased content range of hopane.The low-matured heavy oil is liable to become heavy oil.The integrated geologic factors control the distribution of heavy oil.Biodegradation may be the biggest factor of oil densification.The heavy oil in this sag was accumulated by a short-distance migration,and the oil source is located at the deep part of this sag.Two times of oil filling happened in the Jimsar sag.The heavy oil was derived from the low-matured crude oil at the first phase and became the heavy oil by biodegradation.
Key words： Thick oil girdle; Low mature; Short-distance migration; Biodegradation.
Wei Cai-ru,Wei Dong-tao,Huang Lin-jun,Li Zhong-chun . Geochemical Characteristics of Permian Heavy Oil and Its Origin in Jimsar Sag,Xinjiang Province[J]. Natural Gas Geoscience, 2012 , 23(1) : 135 -140 . DOI: 10.11764/j.issn.1672-1926.2012.01.135
［1］Chen Jianyu,Li Shuifu,Tian Bo,et al.Genesis of heavy oil in kengxiluojia oil region［J］.Oil & Gas Geology,1998,19(3):248-253.［陈建渝,李水福,田波,等.垦西罗家油区稠油成因［J］.石油与天然气地质,1998,19(3):248-253.］
［2］
[ZK（3#]Hu Shouzhi,Zhang Dongmei,Tang Jing,et al.Review the causes of heavy oil region［J］.Geological Science and Technology Information,2009,28(2):94-97.［胡守志,张冬梅,唐静,等.稠油成因综述［J］.地质科技情报,2009,28(2):94-97.］
［3］Wang Yutao.Geochemical characteristics of low-mature oil in the Xinjiang Jimsar depression and its petroliferous potential［J］.Petroleum Geology & Experiment,1993,15(4):385-392.［王屿涛.新疆吉木萨尔凹陷低成熟原油地球化学特征及含油远景［J］.石油实验地质,1993,15(4):385-392.］
［4］Liao Jiande,Luo Lichong,Wu Yunqiang,et al.Analysis of hydrocarbon accumulation in east slope area of Jimsar depression［J］.Petroleum Geology and Recovery Efficiency,2005,12(4):52-54.［廖健德,罗力崇,吴运强,等.吉木萨尔凹陷东斜坡区油气成藏分析［J］.油气地质与采收率,2005,12(4):52-54.］
［5］Bai Zhenhua,Zha Ming.Thick phase change and accumulation of heavy oils at Wuxia region of Junggar basin［J］.Journal of Oil & Gas Technology,2008,30(6):207-210.［白振华,查明.准噶尔盆地乌夏地区稠油稠变阶段及其成藏特征分析［J］.石油天然气学报,2008,30(6):207-210.］
［6］Zhang Huquan,Wang Yandong,Lin Weidong,et al.Geochemical characteristics of crude oil and correlation of oil-source in Minhe basin［J］.Natural Gas Geoscience,2006,17(3):306-308.［张虎权,王廷栋,林卫东,等.民和盆地原油地球化学特征与油源对比［J］.天然气地球科学,2006,17(3):306-308.］
［7］Mei Ling,Zhang Zhihuan,Fan Youyu,et al.Organic geochemistry of Es34 source rocks and its oil-source contribution in Nanpu sag［J］.Natural Gas Geoscience,2009,20(6):964-965.［梅玲,张枝焕,范有余,等.南堡凹陷Es34段烃源岩有机地球化学特征及其油源贡献［J］.天然气地球科学,2009,20(6):964-965.］
［8］Huang Yanqing,Hou Dujie.Geochemical characteristics of oil in Sikeshu sag of Junggar basin［J］.Natural Gas Geoscience,2009,20(2):282-286.［黄彦庆,侯读杰.准噶尔盆地四棵树凹陷原油地球化学特征分析［J］.天然气地球科学,2009,20(2):282-286.］
［9］Su Chuanguo.Degradation characteristics of heavy oil and crowded
[JP]change mechanism at Lukeqin belt of Turban-Harmy basin ［J］.Special Oil & Gas Reservoirs,2004,11(2):3-5.［苏传国.吐哈盆地鲁克沁构造带稠油降解特征及稠变机制［J］.特种油气藏,2004,11(2):3-5.］
［10］Li Chunmei,Li Sumei,Li Xue,et al.Analysis of genesis heavy oil of Bamianhe oilfield in Dongying sag［J］.Geoscience,2005,19(2):280-286.［李春梅,李素梅,李雪,等.东营凹陷八面河油田稠油成因分析［J］.现代地质,2005,19(2):280-286.］
［11］Wang Yutao.Characteristics and type of alteration of heavy oils at the northwestern edge of Junggar basin［J］.Petroleum Geology & Experiment,1994,16(1):11-19.［王屿涛.准噶尔盆地西北缘稠油特征及蚀变作用类型［J］.石油实验地质,1994,16(1):11-19.］
［12］Yuan Qingqiu.Analysis formation conditions of heavy oil in Western depression of Liaohe basin［J］.Special Oil & Gas Reservoirs,2004,11(1):31-46.［袁清秋.辽河盆地西部凹陷稠油形成条件分析［J］.特种油气藏,2004,11(1):31-46.］
［13］Zhang Shouchang.Influence factors of thick crude oil analysis in Liaohe oil region［J］.Special Oil & Gas Reservoirs,2004,11(5):24-26.［张守昌.辽河油区原油稠变的影响因素分析［J］.特种油气藏,2004,11(5):24-26.］
［14］Wang Yutao,Ding Anna,Hui Rongyao,et al.Discussion on the geochemical characteristics and genesis of permian viscous oils at the northwestern edge of Junggar basin［J］.Petroleum Geology & Experiment,1997,19(2):158-163.［王屿涛,丁安娜,惠荣耀.准噶尔盆地西北缘二叠系稠油地化特征及成因探讨［J］.石油实验地质,1997,19(2):158-163.］
［15］Li Sumei,Pang Xiongqi,Gao Xianzhi,et al.Genetic mechanism of heavy oil in western depression of Liaohe basin［J］.Science in China: Series D,2008,38(supplement I):138-149.［李素梅,庞雄奇,高先志,等.辽河西部凹陷稠油成因机制［J］.中国科学:D辑,2008,38(增刊I):138-149.］
/
| 〈 |
|
〉 |
甘公网安备 62010202000678号