天然气地球科学

• 天然气地球化学 • 上一篇    下一篇

塔里木盆地库车坳陷吐格尔明地区油气地球化学特征及烃源探讨

刘如红1,2,3,李剑1,2,3,肖中尧4,李谨3 ,张海祖4,卢玉红4,张宝收4,马卫3,李德江3,刘满仓3   

  1. 1.中国科学院大学,北京 100049;
    2.中国科学院大学渗流流体力学研究所,河北 廊坊 065007;
    3.中国石油勘探开发研究院天然气地质研究所,河北 廊坊 065007; 
    4.中国石油天然气股份有限公司塔里木油田分公司,新疆 库尔勒 841000
  • 收稿日期:2018-11-01 修回日期:2018-12-29 出版日期:2019-04-10
  • 作者简介:刘如红(1985-),女,山东东营人,工程师,硕士,主要从事油气地球化学研究.E-mail:liuruhong@petrochina.com.cn.
  • 基金资助:
    国家科技重大专项“大型气田成藏机制、富集规律与勘探新领域”(编号:2016ZX05007-003)资助.

Geochemical characteristics and implication for gas and oil source correlation in the Tugeerming area of the Kuqa Depression,Tarim Basin

Liu Ru-hong1,2,3,Li Jian1,2,3,Xiao Zhong-yao4,Li Jin3,Zhang Hai-zu4,Lu Yu-hong4,Zhang Bao-shou4,Ma Wei3,Li De-jiang3,Liu Man-cang3   

  1. 1.University of Chinese Academy of Sciences,Beijing100049,China;
    2.Institute of Hydrodynamics,Chinese Academy of Sciences,Langfang 065007,China;
    3.Institute of Natural Gas Geology,PetroChina Research Institute of Petroleum Exploration and Development,Langfang 065007,China;4.PetroChina Tarim Oilfield Company,Korla 841000,China
  • Received:2018-11-01 Revised:2018-12-29 Online:2019-04-10

摘要: 吐格尔明地区位于库车坳陷东部,近年来部署的吐东2井在侏罗系阳霞组获得工业油气流,指示该区油气勘探的前景广阔。吐格尔明地区油—气—源的对比研究结果显示:吐格尔明侏罗系阳霞组原油的生物标志化合物特征显示其母质为典型的淡水陆源高等植物来源,阳霞组天然气为煤型凝析油伴生气,成熟度与原油相同,两者来源于相同烃源岩。采用生物标志化合物对比技术、正构烷烃碳同位素对比技术系统对比了吐格尔明地区侏罗系阳霞组原油与该区侏罗系、三叠系烃源岩之间的差异,结果显示阳霞组原油与侏罗系阳霞组、克孜勒努尔组烃源岩之间存在母源关系,为该区油气资源评价提供重要参考.

关键词: 吐格尔明地区, 侏罗系, 三叠系, 正构烷烃碳同位素, 油源对比

Abstract: Tugeerming area is located in the eastern part of the Kuqa Depression,Tarim Basin.In recent years,prolific oil and gas flow in Jurassic Yangxia Formation of Well Tudong 2 indicates broad prospects of exploration in this area.This paper carries out the oil-gas and source correlation in the Tugeerming area.The results are as follows.The biomarker characteristics of the crude oil of the Yangxia Formation of the Tugereming Jurassic group showed that the hydrocarbon precursor type was a typical freshwater source of terrestrial organic matters,Yangxia Formation.The natural gas of the group is coal-type condensate with associated gas.The maturity of the natural gas is the same as that of the crude oil and both of them are derived from the same hydrocarbon source rocks.In this paper,the biomarker comparison technique,n-alkane carbon isotope comparison technique,kerogen carbon isotope-crude carbon isotope comparison technology system was used to study the Jurassic Yangxia Formation oil in the Tugereming area and the hydrocarbon source rocks of Jurassic and Triassic in the area.The differences between the source rocks are comprehensive.The results show that there is a maternal relationship between the Yangxia Formation crude oil and the Jurassic Yangxia Formation and Kezilenur Formation source rocks,which provides an important reference for the evaluation of oil and gas resources in this area.

Key words: Tugeerming area, Jurassic, Triassic, n-alkane carbon isotope, Oil and gas source correlation

中图分类号: 

  • TE122.1+13
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