塔河油田奥陶系油田水同位素特征及地质意义

贾存善; 马旭杰; 饶丹; 高仁祥

doi:10.11781/sysydz200703292

塔河油田奥陶系油田水同位素特征及地质意义

doi: 10.11781/sysydz200703292

1.
中国矿业大学, 资源与安全工程学院, 北京, 100083
2. 中国石油化工股份有限公司, 石油勘探开发研究院无锡石油地质研究所, 江苏, 无锡, 214151
3. 中国石化, 西北分公司, 勘探开发研究院, 乌鲁木齐, 830011

详细信息

作者简介:
贾存善(1973- ),男(汉族),青海人,博士生,工程师,主要从事油气有机地球化学及成藏研究.

中图分类号: TE133
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出版历程
- 收稿日期: 2007-02-12
- 修回日期: 2007-04-10
- 刊出日期: 2007-05-28

ISOTOPIC CHARACTERISTICS OF OIL FILED WATERS FROM ORDOVICIAN OIL ACCUMULATIONS IN TAHE OILFIELD AND ITS GEOLOGICAL SIGNIFICANCES

1.
College of Resource & Safety Engineering, China University of Mining & Technology, Beijing 100083, China
2. Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214151, China
3. Exploration & Production Research Institute of Northwest Branch Company, SINOPEC, Urumqi, Xingjiang 830011, China

摘要

摘要: 塔河油田奥陶系地层水的δD(SMOW)分布于-44.7‰~-61.0‰,表明为古大气降水和原生沉积水的混合水,并以古大气水为主。根据油田水的高压物性参数、HCO₃^-离子碳同位素、锶同位素⁸⁷Sr/⁸⁶Sr比值等的横向变化规律,大致判断出塔里木盆地阿克库勒凸起古大气水的优势流动方向为从阿克库勒凸起的东北构造高地向鼻凸倾伏的西南方向流动,并且在此流动过程中由构造轴部向两翼分流,通过对断裂、裂隙等薄弱带的不断溶蚀扩大,最终形成塔河油田奥陶系复杂的碳酸盐岩岩溶缝洞系统,为油气聚集成藏提供了有效的储集空间。因此,古大气水流动的方向对岩溶缝洞系统的分布以及缝洞单元的连通性具有重要的控制作用。
- 岩溶缝洞系统 /
- 同位素 /
- 油田水 /
- 奥陶系 /
- 塔河油田 /
- 塔里木盆地
Abstract: Hydrogen isotope values(δD) of oil field waters from the Ordovician oil accumulations in Tahe oilfield cover -44.7‰～-61.0‰(SMOW),from which one can conclude that the oilfield waters are mostly paleo-atmospheric waters mixed with original sediment seawater.Based on the transverse change trends of the parameters in these oilfield waters,such as high pressure physical parameter,carbon isotope of CO₃^- electronegative ion and ⁸⁷Sr/⁸⁶Sr ratio of strontium isotope,one can roughly deduce that the predominant flow direction of paleo-atmospheric water is from the northeastern tectonic high position to the southwestern plunge end of the Arkekule nose salient.In this process,the current flowed from axis to two wings of the tectonic,which would cut through weakness belt of faults or cracks and enlarge the space by carbonates corrosion,finally formed complicated karst fracture-cavity system of the Ordovician carbonates in Tahe Oilfield.Therefore,the flow direction of paleo-atmospheric water controled the distribution of fracture-cavity system and connectivity of fracture-cavity cells.
- Karst fracture-cavity system /
- isotope /
- oil field water /
- the Ordovician /
- Tahe Oilfield /
- the Tarim Basin

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参考文献(20)

[1]	Clayton R N.The origin of saline formation waters,I.Isotopic composition[J].Geophys,1966,71:3869～3882
[2]	Carother W W.Aliphatic acid anions in oil-field water-implications for origin of natural gas[J].AAPG Bulletin,1978,62:2441～2453
[3]	Nriagu J O.Environmental biogeochemistry[M].MI:Ann Arbor Science Publishers,1976.1～3
[4]	Hadson J D.Stable isotopes and limestone lithification[J].Geology Soc,1977,133:637
[5]	Peterman Z E.Isotopic composition in sea water throughout Phanerozoic time[J].Geochim et Comochim Acta,1970,34:105～120
[6]	钱一雄,蔡立国,顾忆.塔里木盆地塔河油田水离子组合及参数的平面分布与油气运移[J].石油实验地质,2005,27(5):502～507
[7]	刘建伟,张哨楠.塔河油田奥陶系油田水特征离子及意义[J].地质找矿论丛,2005,20(1):40～46
[8]	蔡立国,钱一雄,刘光祥等.塔河油田及邻区地层水成因探讨[J].石油实验地质,2002,24(1):57～60
[9]	俞仁连.塔里木盆地塔河油田加里东期古岩溶特征及其意义[J].石油实验地质,2005,27(5):468～472
[10]	高波,刘文汇,范明等.塔河油田成藏期次的地球化学示踪研究[J].石油实验地质,2006,28(3):276～280
[11]	Swart P K,Price R.Origin of salinity variations in Florida Bay[J].Limnology and Oceanography,2002,47:1234～1241
[12]	Swartet P K,Leder J J,Szmant A M,et al.The origin of variations in the isotopic record of Scleractionan corals:ⅡCarbon[J].Geochim et Comochim Acta,1996,60:2871～2885
[13]	王大锐.油气稳定同位素地球化学[M].北京:石油工业出版社,2000.18～112
[14]	Ciaig H.Isotopic variations in meteoric waters[J].Science,1961,133:1702
[15]	蔡立国,钱一雄,刘光祥.阿克库勒及其邻区地层水同位素特征和油气地质意义[J].天然气地球科学,2005,16(4):503～506
[16]	Burke W H,Denison R E,Hetherington E A,et al.Varition of seawater{⁸⁷Sr/⁸⁶Sr}throughout Phanerozoic time[J].Geology,1982,10(10):516～519
[17]	Veizer J,Buhl D,Diener A,et al.Strontium isotope stratigraphy:Potential resolution and event oorrelation[J].Palaeogeography Palaeoclimatology Palaeoecology,1997,132:65～77
[18]	Roger J,Barnaly,Gregg C,et al.Strontium isotopic signatures of oil-field waters:Applications for reservoir characterization[J].AAPG Bulletin,2004,80(12):1677～1704
[19]	黄思静,刘树根,李国蓉等.奥陶系海相碳酸盐锶同位素组成及受成岩流体的影响[J].成都理工大学学报(自然科学版),2004,31(1):1～7
[20]	王晓东,陈凌.塔河油田下奥陶统溶洞分布规律初步探讨[J].西部探矿工程,2003,20(1):70～71