鄂尔多斯盆地中央隆起带奥陶系风化壳古油藏与靖边大气田关系

马春生, 许化政, 宫长红, 孙联中

doi:10.11764/j.issn.1672-1926.2011.02.280

天然气地球科学 >

2011 , Vol. 22 >Issue 2: 280 - 286

DOI: https://doi.org/10.11764/j.issn.1672-1926.2011.02.280

天然气地质学

鄂尔多斯盆地中央隆起带奥陶系风化壳古油藏与靖边大气田关系

展开

1.中国地质大学（北京） ,北京 100083;
2.北京东方联创地球物理技术有限公司,北京 100083;
3.中原油田技术监测中心,河南濮阳 457001

马春生(1972-)，男，山东梁山人，高级工程师，主要从事石油地质综合研究.

收稿日期: 2010-03-23

修回日期: 2010-03-25

网络出版日期: 2011-04-10

收起

Paleo-oil Reservoir and Jingbian Natural Gasfield of Ordovician Weathering Crast in Ordos Basin

Expand

1.China Unversity of Geosciences,Beijing 100083,China;2.Beijing Dongfang Lianchuang Geophysical Technology
Co. Ltd.,Beijing 100083,China;3.Technical Monitoring Center of Zhongyuan Oilfield, Puyang 457001,China.

Received date: 2010-03-23

Revised date: 2010-03-25

Online published: 2011-04-10

Fold

摘要

大量岩石薄片分析表明，中央隆起带淳探1井、富探1井和陕54井区奥陶系风化壳储层中存在次生充填状沥青或炭屑，其成熟度高（RO≈2.0%）,光性和生物标志物特征显示为石油裂解的残余物，是古油藏（田）的证据。古油藏位于靖边大气田的下倾方向，其西侧和南侧地层下倾方向的中奥陶统平凉组笔石页岩有机质含量丰富，可能是古油藏的烃源岩。J₂—K₁期的埋深加大和古地温升高，导致古油藏石油裂解形成古气藏；K₂—E期燕山和喜马拉雅运动形成陕北斜坡，中央隆起带天然气向斜坡高部位运移，受岩性封堵形成靖边气田。

关键词： 奥陶系; 风化壳; 中央隆起带; 沥青和炭屑; 古油藏; 平凉页岩

本文引用格式

马春生, 许化政, 宫长红, 孙联中 . 鄂尔多斯盆地中央隆起带奥陶系风化壳古油藏与靖边大气田关系[J]. 天然气地球科学, 2011 , 22(2) : 280 -286 . DOI: 10.11764/j.issn.1672-1926.2011.02.280

Abstract

Rock thin section analysis data show that pack bitumen exists in the reservoir of Ordovician weathering crast of Chuntan1, Futan1 and Shan54 wellblocks in central uplift belt. The pack bitumen with high maturity is proved to be remnant of oil pyrolysis by the optical feature, which proves the existence of paleo-oil reservoir. The paleo-oil reservoir is located in the downdip direction of the Jingbian gasfield and the shale of the Middle Ordovician Pingliang Formation with abundant organic matter might be the source rock of the paleo-oil reservoir. The increasing of its buried depth and palaeogeotherm in the stage of J₂-K₁ caused Paleo\|oil reservoir to turn into Paleo-gas reservoir. Shanbei slope was formed by the Yanshan movement during K₂-E. The gas in central Paleo-uplift zone migrated to the high place of slope and formed Jingbian gas field by lithology sealing.

Key words： Ordovician; Weathering crust; Central uplift belt; Bitumen and Charcoal; Paleo-oil reservoir; Pingliang shale.

参考文献

［1］Wu Zheng,Yang Yuanchu,Wang Xinhong.An analysis of the original coexisting bitumen in lower ordovician in Eerduosi basin［J］.Natural Gas Industry,1999,16(6):14-17.［吴征,杨元初,王新红.鄂尔多斯盆地下奥陶统原生—同层沥青分析［J］.天然气工业,1999,19(6):14-17.］
［2］Chen Mengjin,Wang Xinmin,Hu Guoyi,et al.Formation condition and exploration potential of ordovician natural gas reservoir in eastern Ordos basin［J］.Oil & Gas Geology,2006,(1):25-31.［陈孟晋,王新民,胡国艺,等.鄂尔多斯盆地西部奥陶系天然气成藏条件与勘探潜力［J］.石油与天然气地质,2006,(1):25-31.］
［3］Guan Deshi,Zhang Wenzheng.Oil-gas sources of ordovician reservoir in gas field of central ordos basin［J］.Oil & Gas Geology,1993, 14(3):191-199.［关德师,张文正.鄂尔多期盆地中部气田奥陶系产层的油气源［J］.石油与天然气地质,1993,14(3):191-199.］
［4］Zhang Shiya.Natural gassource and explorative direction in Eerduosi basin［J］.Natural Gas Industry,1994,14(3):1-4.［张士亚.鄂尔多斯盆地天然气气源及其勘探方向［J］.天然气工业,1994,14(3):1-4.］
［5］Chen Anding.Origin and migration of natural gas in ordovician reservoir in shan gan ning basin central gas field［J］.Acta Petrolei Sinica, 1994,15(2):1-10.［陈安定.陕甘宁盆地中部气田奥陶系天然气的成因及运移［J］.石油学报, 1994,15(2):1-10.］
［6］Kong Qingfen,Wang Keren.Thermal simulation of ordovician source rock of foreland basin in western Ordos［J］.Natrual Gas Geoscience, 2006,17(6):187-191.［孔庆芬,王可仁.鄂尔多斯盆地西缘奥陶系烃源岩热模拟实验研究［J］.天然气地球科学, 2006,17(6):187-191.］
［7］Yang Junjie.Tectonic Evolution of Ordos Basin and Hydrocarbon Distribution Patterns ［M］.Beijing:Petroleum Industry Press,2002.［杨俊杰.鄂尔多斯盆地构造演化与油气分布规律［M］.北京:石油工业出版社,2002.］
［8］He Zixin.Ordos Basin Evolution And Hydrocarbon ［M］.Beijing:Petroleum Industry Press,2003.［何自新.鄂尔多斯盆地演化与油气［M］.北京:石油工业出版社,2003.］［9］LI Zhenhong,Zheng Congbin.The reservoir heterogeneity and controlled factors of ordovician in the eastern ordos basin［J］.Natural Gas Geosicence,2004,15(6):604-609.［李振宏,郑聪斌.鄂尔多斯盆地东部奥陶系储层特征及控制因素［J］.天然气地球科学 , 2004,15(6):604-609.］
［10］Wang Shaochang,Fu Suotang,Li Xizhe.The influence to the accumulation of oil and gas, of the development of the arcuate structure zone in the transition zone from the plat to the geosyncline in the west of ordos basin［J].Natural Gas Geoscience,2005,16(4):421-427.［王少昌,付琐堂,李熙哲,等.鄂尔多斯盆地西缘古生代槽台过渡带裂谷系弧形构造带的形成与发展及对油气聚集富集规律的影响［J］.天然气地球科学,2005,16(4):421-427.］

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献