天然气地球科学
高级检索
作者投稿 专家审稿 编辑办公

天然气地球科学

• 天然气地球化学 • 上一篇    下一篇

塔里木盆地乌什凹陷原油地球化学特征及油源分析

龚德瑜，李明，李启明，肖中尧，陶小晚，黄士鹏   

  1. 1.中国石油勘探开发研究院，北京 100083;
    2.中国石油塔里木油田公司，新疆 库尔勒 841000
  • 收稿日期:2013-06-21 修回日期:2013-07-26 出版日期:2014-01-10 发布日期:2014-01-10
  • 通讯作者: 龚德瑜deyugong@petrochina.com.cn. E-mail:deyugong@petrochina.com.cn.
  • 作者简介:龚德瑜(1983-），男，江苏苏州人，博士后，主要从事天然气地质与地球化学研究. E-mail：deyugong@petrochina.com.cn.
  • 基金资助:

    国家自然科学青年基金项目“不同成因凝析油的地球化学鉴别”(编号：41303037）资助.

Geochemical Characteristics and Origins of the Oils in Wushi Sag,Tarim Basin

GONG De-yu，LI Ming，Li Qi-ming，XIAO Zhong-yao，TAO Xiao-wan，HUANG Shi-peng   

  1. 1.Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China;
    2.Tarim Oilfield Company,PetroChina,Korla 841000,China
  • Received:2013-06-21 Revised:2013-07-26 Online:2014-01-10 Published:2014-01-10

PDF (PC)

479

摘要：

塔里木盆地乌什凹陷乌参1井、神木1井和神木2井的相继突破，揭示了该区具有广阔的油气勘探前景。通过饱和烃和轻烃气相色谱对乌什凹陷原油地球化学特征进行了全面的分析，并与塔里木盆地典型的陆相原油和湖(海）相原油进行了对比。神木2井和乌参1井原油Pr/Ph值分别为2.35和3.53，表现出典型的煤成烃特征。乌什凹陷原油具有相对较高的芳烃(苯和甲苯）、甲基环己烷和环己烷含量，而环戊烷和无环烃类相对含量较低，说明陆源有机质贡献较大。乌什凹陷原油庚烷指数介于25.0%~27.6%之间，异庚烷指数介于2.5%~2.7%之间，处在高成熟早期阶段。乌什凹陷原油未经历水洗和生物降解作用，但发生了较为明显的蒸发分馏作用，导致轻烃组分中芳烃含量增加，而正构烷烃含量减少。通过OCSD—C7轻烃星状图和C7轻烃系统三角图分析，乌什凹陷原油和迪那2气田凝析油同属于陆相原油，来源于腐殖型有机质，和克拉苏构造带及塔中1气田来源于腐泥型有机质的湖(海）相原油存在明显差别。综合上述分析，乌什凹陷原油主要为来自于侏罗系煤系烃源岩的煤成油。

关键词: 塔里木盆地, 乌什凹陷, 油源分析, 轻烃, 陆相原油

Abstract:

Great exploration potential in Wushi Sag has been revealed by the successive breakthroughs in Wells of Wucan1,Shenmu1 and Shenmu2.By using gas chromatographs of saturated and light hydrocarbons,we comprehensively studied the geochemical characteristics of the oils in the Wushi Sag and compared them with typical terrestrial and lacustrine (marine) oils in other parts of the Tarim Basin.The pristane/phytane ratio in the Shenmu2 and Wucan1 Wells is 2.35 and 3.53,respectively,obviously demonstrating that it is of coal-derived origin.The oils in the Wushi Sag has a relatively high content of aromatics(benzene and toluene),methylcyclohexane and cyclohexane while a low content of cyclopentane and acyclic hydrocarbons,indicating that a great contribution from the terringenous organic matters was made.The thermal maturity of the oils in the Wushi Sag is at the early period of the high-mature stage with the heptane index ranging from 25.0% to 27.6% and the isoheptane index ranging from 2.5% to 2.7%,respectively.Water washing and biodegradation of oils in the Wushi Sag were not observed.The oils in the study area have obviously experienced the evaporative fraction,resulting in the increase of aromatics and the decrease in n-alkanes.By means of Oil Correlation Star Diagram(OCSD）and the Triangular diagrams of C7 hydrocarbon，the oils in Wushi Sag was derived from humic organic matters,the same as those in the Dina2 gas-condensates field,which were distinctively different from the lacustrine and marine oils in the Kelasu structure and Tazhong1 Gasfield.From all geochemical features above,it is concluded that the oils in the Wushi Sag were derived from the Jurassic coal measures.

Key words: Tarim Basin, Wushi Sag, Oil correlation, Light hydrocarbon, Terrestrial oils

中图分类号: 

  • TE122.1+13

［1］Liang Digang,Zhang Shuichang,Chen Jianping,et al.Organic geochemistry of oil and gas in the Kuqa Depression,Tarim Basin,NW China［J］.Organic Geochemistry,2003,34:873-888.

［2］ Zhao Wenzhi,Zhang Shuichang,Wang Feiyu,et al.Gas systems in the Kuche Depression of the Tarim Basin:Sourcerock distributions,generation kinetics and gas accumulation history［J］.Organic Geochemistry,2005,36:1583-1601.

［3］ Qin Shengfei,Dai Jinxing,Liu Xianwei.The controlling factors of oil and gas generation from coal in the Kuqa Depression of Tarim Basin,China［J］.International Journal of Coal Geology,2007,70:255-263.

［4］ Chen Lin,Zhu Guangyou,Zhang Bin,et al.Control factors and diversities of phase state of oil and gas pools in the Kuqa petroleum system［J］.Acta Geologica Sinica:English Edition,2012,86(2):484-496.

［5］Zhu Guangyou,Yang Haijun,Zhang Bin,et al.The geological feature and origin of Dina2 large gas field in Kuqa Depression,Tarim Basin［J］.Acta Petrologica Sinica,2012,28(8):2479-2492.［朱光有,杨海军,张斌,等.塔里木盆地迪那2大型凝析气田的地质特征及其成藏机制［J］.岩石学报,2012,28(8):2479-2492.］

［6］ Jia Jinhua,Zhou Dongyan,Zhang Liping,et al.Petroleum geologic characteristics of Wushi Sag in Tarim Basin［J］.Acta Petrolei Sinica,2004,25(6):12-11.［贾进华,周东延,张立平,等.塔里木盆地乌什凹陷石油地质特征.石油学报,2004,25(6):12-11.］

［7］ Lv Xiuxiang,Jin Zhijun,Zhou Xinyuan,et al.Oil and gas exploration prospect in Wushi Sag and Wensu uplift of Tarim Basin［J］.Journal of China University of Petroleum,2006,30(1):17-25.［吕修祥,金之钧,周新源,等.塔里木盆地乌什凹陷温宿凸起油气勘探前景［J］.中国石油大学学报:自然科学版,2006,30(1):17-25.］

［8］ Liu Yukui,Min Lei,Fen Youwen,et al.Petroleum geologic features of Wushi Sag in the Tarim Basin［J］.Natural Gas Industry,2007,27(1):24-26.［刘玉魁,闵磊,冯游文,等.塔里木盆地乌什凹陷石油地质特征［J］.天然气工业,2007,27(1):24-26.］

［9］ Xiao Jianxin,Lin Changsong,Liu Jingyan.Depositional palaeogeography and division of Cretaceous sequence of Wushi Depression［J］.Earth Science Frontiers,2008,15(2):8-19.［肖建新,林畅松,刘景彦.乌什凹陷及东部邻区白垩系层序划分与沉积古地理［J］.地学前缘,2008,15(2):8-19.］

［10］ Ji Lidan,Gu Jiayu,Zhao Liang,et al.Sedimentary facies and reservoir properties of the Shushanhe Formation in eastern Wushi Sag,Xinjiang［J］.Natural Gas Geoscience,2009,20(6):884-889.［季丽丹,顾家裕,赵亮,等.新疆乌什凹陷东部舒善河组沉积相及其储集性能研究［J］.天然气地球科学,2009,20(6):884-889.］

［11］ Zhao Libin,Ma Yujie,Yang Xianzhang,et al.Characteristics of hydrocarbon pooling in Wushi Sag of Kuqa foreland basin［J］.Natural Gas Industry,2008,28(10):21-24.［赵力彬,马玉杰,杨宪彰,等.库车前陆盆地乌什凹陷油气成藏特征［J］.天然气工业,2008,28(10):21-24.］

［12］ Ma Yujie,Xie Huiwen,Cai Zhengzhong,et al.The geology feature of Dina 2 Gasfield,Kuche Depression［J］.Natural Gas Geoscience,2003,14(5):371-374.［马玉杰,谢会文,蔡振忠,等.库车坳陷迪那2气田地质特征［J］.天然气地球科学,2003,14(5):371-374.］

［13］ Zhuo Qingong，Li Yong，Lu Xuesong，et al.Condensate characteristics and its significance for hydrocarbon accumulation in the Kelasu structural belt［J］.Natural Gas Geoscience,2012,23(6):1097-1103.［卓勤功，李勇，鲁雪松，等.克拉苏构造带凝析油特征及其对油气成藏的指示意义［J］.天然气地球科学，2012，23(6)：1097-1103.］

［14］Zhang Shuichang,Liang Digang,Zhang Baomin,et al.The Generation of the Marine Hydrocarbons in Tarim Basin［M］.Beijing:Petroleum Industry Press,2005.［张水昌,梁狄刚,张宝民,等.塔里木盆地海相油气的生成［M］.北京:石油工业出版社,2005.］

［15］ Wang Xiang,Zhang Min，Huang Guanghui.Compositions and geochemical characteristics of light hydrocarbons in typical marine oils and typical coal-formed oils［J］.Natural Gas Geoscience,2008,19(1):18-21.［王祥，张敏,黄光辉.典型海相油和典型煤成油轻烃组成特征及地球化学意义［J］.天然气地球科学,2008,19(1):18-21.］

［16］ Liu Qingxin,Zhang Min,Huang Guanghui,et al.Composition characteristics of light hydrocarbons for crude oils and its significance in Tazhong area,Tarim Basin［J］.Natural Gas Geoscience,2006,17(3):319-322.［刘庆新,张敏,黄光辉,等.塔里木盆地塔中地区原油轻烃组成特征及其意义［J］.天然气地球科学,2006,17(3):319-322.］

［17］Lu Shuangfang,Zhang Min.Petroleum Geochemistry［M］.Beijing:Petroleum Industry Press,2008:147-161.［卢双舫,张敏.油气地球化学［M］.北京:石油工业出版社,2008:147-161.］

［18］ Shanmugam G.Significance of coniferous rain forests and related oil,Gippsland Basin,Australia［J］.AAPG Bulletin,1984,69:1241-1254.

［19］ Hunt J M,Huc A Y,Whelan J K.Generation of light hydrocarbons in sedimentary rocks［J］.Nature,1980,288:688-690.

［20］ Peters K E,Moldowan J M.The Biomarker Guide Interpreting Molecular Fossils in Petroleum and Ancient Sediments［M］.New Jersey:Prentice Hall,1993:361.

［21］ Chang C T,Lee M R,Lin L H,et al.Application of C7 hydrocarbonstechnique to oil and condensate from type Ⅲ organic matter in northwestern Taiwan［J］.International Journal of Coal Geology,2007,71(1):103-114 

［22］ Mango F D.An invariance in the isoheptanes of petroleum［J］.Science,1987,237:514-517.

［23］ Mango F D.The origin of light cycloalkanes in petroleum［J］.Geochimica et Cosmochimica Acta,1990,54:23-27.

［24］ Mango F D.The origin of light hydrocarbons in petroleum:A kinetic test of the steady-state catalytic hypothesis［J］.Geochimica et Cosmochimica Acta,1990,54:1315-1323.

［25］ Odden W,Patience R L,Van-Graas G W.Application of light hydrocarbons (C4-C13) to oil/source rock correlations:A study of the light hydrocarbons compositions of source rock and test fluids from offshore Mid-Norway［J］.Organic Geochemistry,1998,28:823-847.

［26］ Leythaeuser D,Schaefer R G,Weiner B.Generation of low molecular weight hydrocarbons from organic matter in source beds as a function of temperature and facies［J］.Chemical Geology,1979,25:95-108.

［27］Leythaeuser D,Schaefer R G,Conford C,et al.Generation and migration of light hydrocarbons (C2-C7) in sedimentary basins［J］.Organic Geochemistry,1979,(1):191-204.［28］ Hu Tiling,Ge Baoxiong,Zhang Yigang,et al.The development and application of fingerprint parameters for hydrocarbons absorbed by source rocks and light hydrocarbon in natural gas［J］.Petroleum Geology & Experiment,1990,12(4):375-394.［胡惕麟,戈葆雄,张义纲,等.源岩吸附烃和天然气轻烃指纹参数的开发和应用［J］.石油实验地质,1990,12(4):375-394.］

［29］ Zhu Junzhang,Shi Hesheng,Wang Jianrong,et al.Origin of ring preference of light hydrocarbons in Pearl River Mouth Basin［J］.Natural Gas Geoscience,2009,20(1):15-19.［朱俊章，施和生，汪建蓉，等.珠江口盆地陆相原油轻烃环优势及其成因［J］.天然气地球科学,2009,20(1):15-19.］

［30］ Thompson K F M.Classification and thermal history of petroleum based on light hydrocarbons［J］.Geochemica et Cosmochimica Acta,1983,47:303-316.

［31］ Thompson K F M.Fractionated aromatic petroleums and the generation of gas-condensates［J］.Organic Geochemistry,1987,11:573-590.

［32］Halpern I H.Development and applications of light-hydrocarbons based star diagrams［J］.AAPG Bulletin,1995,79:801-815.

［33］ Wever H E.Petroleum and source rock characterization based on C7 star plot results:Examples from Egypt［J］.AAPG Bulletin,2000,84:1041-1054.

［34］ Hunt J M.Petroleum Geochemistry and Geology［M］.Second Edition.New York:Freeman,1996:743.

［35］ Dai Jinxing.Identification and distinction of various alkane gases［J］.Science in China:Series B,1992,(35):1246-1257.

［36］Dai Jinxing,Qin Shengfei,Tao Shizhen,et al.Developing trends of natural gas industry and the significantprogress on natural gas geological theories in China［J］.Natural Gas Geoscience,2005,16(2):127-142.［戴金星，秦胜飞，陶士振,等.中国天然气工业发展趋势和天然气地学理论重要进展［J］.天然气地球科学,2005,16(2):127-142.］

［37］ Liang Wanru,Zhang Min,Zhao Hongjing.Geochemical characteristics of light hydrocarbons in Tuha Basin［J］.Natural Gas Geoscience,2009,20(5):763-767.［梁婉如，张敏，赵红静.吐哈盆地原油轻烃地球化学特征［J］.天然气地球科学,2009,20(5):763-767.］
[1] 陈永权, 严威, 韩长伟, 闫磊, 冉启贵, 亢茜, 何皓, 马源. 塔里木盆地寒武纪/前寒武纪构造—沉积转换及其勘探意义[J]. 天然气地球科学, 2019, 30(1): 39-50.
[2] 于聪, 胡国艺, 陈瑞银. 不同煤系烃源岩热解气地球化学差异及其在苏里格气田的应用[J]. 天然气地球科学, 2019, 30(1): 133-142.
[3] 张荣虎，王珂，王俊鹏，孙雄伟，李君，杨学君，周露. 塔里木盆地库车坳陷克深构造带克深8区块裂缝性低孔砂岩储层地质模型[J]. 天然气地球科学, 2018, 29(9): 1264-1273.
[4] 王清龙，林畅松，李浩，韩剑发，孙彦达，何海全. 塔里木盆地西北缘中下奥陶统碳酸盐岩沉积微相特征及演化[J]. 天然气地球科学, 2018, 29(9): 1274-1288.
[5] 周波，曹颖辉，齐井顺，黄世伟，刘策，贾进华，陈秀艳. 塔里木盆地古城地区下奥陶统储层发育机制[J]. 天然气地球科学, 2018, 29(6): 773-783.
[6] 朱光有，曹颖辉，闫磊，杨海军，孙崇浩，张志遥，李婷婷，陈永权. 塔里木盆地8 000m以深超深层海相油气勘探潜力与方向[J]. 天然气地球科学, 2018, 29(6): 755-772.
[7] 王珊，曹颖辉，杜德道，王石，李洪辉，董洪奎，严威，白莹. 塔里木盆地柯坪—巴楚地区肖尔布拉克组储层特征与主控因素[J]. 天然气地球科学, 2018, 29(6): 784-795.
[8] 曹颖辉，李洪辉，闫磊，王洪江，张君龙，杨敏，赵一民. 塔里木盆地满西地区寒武系台缘带分段演化特征及其对生储盖组合的影响[J]. 天然气地球科学, 2018, 29(6): 796-806.
[9] 闫磊，李洪辉，曹颖辉，杨敏，赵一民. 塔里木盆地满西地区寒武系台缘带演化及其分段特征[J]. 天然气地球科学, 2018, 29(6): 807-816.
[10] 杨敏，赵一民，闫磊，李洪辉，张欣欣，徐振平，罗浩渝. 塔里木盆地东秋里塔格构造带构造特征及其油气地质意义[J]. 天然气地球科学, 2018, 29(6): 826-833.
[11] 陈斐然，张义杰，朱光有，张宝收，卢玉红，张志遥. 塔里木盆地台盆区深层天然气地球化学特征及成藏演化[J]. 天然气地球科学, 2018, 29(6): 880-891.
[12] 邓焱，胡国艺，赵长毅. 四川盆地龙岗气田长兴组—飞仙关组天然气地球化学特征及成因[J]. 天然气地球科学, 2018, 29(6): 892-907.
[13] 黄少英, 杨文静, 卢玉红, 张科, 赵青, 凡闪. 塔里木盆地天然气地质条件、资源潜力及勘探方向[J]. 天然气地球科学, 2018, 29(10): 1497-1505.
[14] 陈燕燕，胡素云，李建忠，王铜山， 陶小晚. 原油裂解过程中组分演化模型及金刚烷类化合物的地球化学特征[J]. 天然气地球科学, 2018, 29(1): 114-121.
[15] 任宇泽,林畅松,高志勇,刘景彦,宋宁宁. 塔里木盆地西南坳陷白垩系层序地层与沉积充填演化[J]. 天然气地球科学, 2017, 28(9): 1298-1311.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] 窦启龙,陈践发,王杰,张殿伟. 微生物采油技术的研究进展及展望[J]. 天然气地球科学, 2004, 15(5): 559 -563 .
[2] 许浩;汤达祯;魏国齐;张君峰;吴世祥;. 川西地区须二段油气充注历史的流体包裹体分析[J]. 天然气地球科学, 2005, 16(5): 571 -574 .
[3] 王宗贤;陈泽良;杨树合;易继贵;杨丽容;谭振华;李辉;. 流体相态研究在凝析气藏开发中的应用[J]. 天然气地球科学, 2005, 16(5): 662 -665 .
[4] 翟秀芬，汪泽成，罗平，王铜山，石书缘，张洪. 四川盆地高石梯东部地区震旦系灯影组微生物白云岩储层特征及成因[J]. 天然气地球科学, 2017, 28(8): 1199 -1210 .
[5] 沈安江，付小东，张友，郑兴平，刘伟，邵冠铭,曹彦清. 塔里木盆地塔东地区震旦系—下古生界碳酸盐岩油气生储条件与勘探领域[J]. 天然气地球科学, 2018, 29(1): 1 -16 .
[6] 倪新锋，沈安江，韦东晓，乔宇婷，王莹. 碳酸盐岩沉积学研究热点与进展：AAPG百年纪念暨2017年会及展览综述[J]. 天然气地球科学, 2018, 29(5): 729 -742 .
[7] 周波，曹颖辉，齐井顺，黄世伟，刘策，贾进华，陈秀艳. 塔里木盆地古城地区下奥陶统储层发育机制[J]. 天然气地球科学, 2018, 29(6): 773 -783 .
[8] 闫磊，李洪辉，曹颖辉，杨敏，赵一民. 塔里木盆地满西地区寒武系台缘带演化及其分段特征[J]. 天然气地球科学, 2018, 29(6): 807 -816 .
[9] 高崇龙，纪友亮，靳军，王剑，任影，曾力，王道伟，张昊，李谨杰. 古隆起埋藏期沟谷残丘地貌下沉积体系及油气藏发育模式——以准噶尔盆地腹部石南地区清水河组一段为例[J]. 天然气地球科学, 2018, 29(8): 1120 -1137 .
[10] 程鸣，傅雪海，张苗，程维平,渠丽珍. 沁水盆地古县区块煤系“三气”储层覆压孔渗实验对比研究[J]. 天然气地球科学, 2018, 29(8): 1163 -1171 .