西藏波林盆地侏罗—白垩系海相烃源岩评价

王立成; 王成善; 伍新和; 李亚林; 魏玉帅

doi:10.11781/sysydz201003276

西藏波林盆地侏罗—白垩系海相烃源岩评价

doi: 10.11781/sysydz201003276

王立成^1,2,
王成善^1,2,
伍新和³,
李亚林^1,2,
魏玉帅^1,2,4

1.
中国地质大学(北京)地球科学与资源学院, 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, 北京, 100083
3. 中国石油化工股份有限公司石油勘探开发研究院, 北京,100083
4. 西藏自治区地质调查研究院, 拉萨,850000

基金项目: 财政部国家油气专项“青藏高原油气资源战略选区调查与评价”项目(XQ2004-06);中国石油化工股份有限公司海相前瞻性项目(T060007ZS15);“中央高校基本科研业务费专项资金”资助

详细信息

作者简介:
王立成(1983- ),男,在读博士生,主要从事青藏高原海相盆地沉积学和油气地质学研究.E-mail:wayne-wlc3@126.com.

中图分类号: TE122.1
计量
- 文章访问数: 1996
- HTML全文浏览量: 81
- PDF下载量: 1028
- 被引次数: 0
出版历程
- 收稿日期: 2009-11-11
- 修回日期: 2010-03-29
- 刊出日期: 2010-06-28

EVALUATION OF JURASSIC-CRETACEOUS MARINE HYDROCARBON ROCKS IN THE BOLIN BASIN, SOUTHWESTERN TIBET

1.
School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
2. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China
3. SINOPEC Exploration and Production Research Institute, Beijing 100083, China
4. Tibet Institutes of Geological Survey, Lhasa 850000, China

摘要

摘要: 波林盆地位于青藏高原西南缘,面积约30 000 km²,是高原内勘探程度极低的海相含油气盆地之一。通过对盆地内烃源岩展布特征以及实测剖面的烃源岩有机质丰度、类型和热演化成熟度等有机地球化学参数的分析,认为该盆地存在2套主要烃源岩:上侏罗统门卡墩组黑色页岩厚达432 m,主要沉积于外陆棚环境,残余有机碳含量在0.67%~1.62%,平均1.03%,经过有机质恢复后有机碳含量在0.91%~2.40%,平均1.48%;岗巴群黑色页岩厚度56 m,为一套外陆棚沉积,残余有机碳含量在0.7%~1.08%,平均0.86%;恢复后有机碳含量在0.96%~1.60%,平均1.21%。2套烃源岩都以Ⅱ₁型有机质为主,达到高—过成熟阶段,属于盆地内的好烃源岩。因此,该盆地有较丰富的油气生成的物质基础,具有较好的油气勘探前景。
- 有机地球化学参数 /
- 烃源岩评价 /
- 侏罗系 /
- 白垩系 /
- 波林盆地 /
- 西藏
Abstract: The Bolin Basin,located on the southwestern margin of Tibetan Plateau,is a Mesozoic marine petroliferous basin covering an area of 30 000 km².The basin has been received little hydrocarbon interest for its severe climate and life conditions,although it situates in the east of Tethyan realm,which is concentrated about 70% of the total world petroleum resources.Measured section and geochemical ana-lysis are combined to better understand the hydrocarbon potential.Two major source rock units have been identified: the Upper Jurassic Menkadun Formation and the Lower Cretaceous Gangba Group.Their potential source rock successions,mainly composed of dark shales during Oxfordian-Tithonian and Aptian,respectively,were deposited in outer shelf.TOC content ranges from 0.67 to 1.62 weight percent with an average value of about 1.03 weight percent for the Menkadun Formation and 0.7 to 1.08 weight percent with an average value of about 0.86 weight percent for the Gangba Group.All shale samples are composed of a mixed typeⅡ₁(oil prone) kerogen.The vitrinite reflectance data and biomarker suggest that the Gangba Group is at late mature with respect to petroleum generation and the Menkadun Formation is overmature with respect to liquid hydrocarbon generation.These data indicate the shales of the units are good potential source rocks.Therefore,the good source rocks supply abundant matters for the formation of oil and gas in this area.
- organic geochemical parameters /
- source rock evaluation /
- Jurassic /
- Cretaceous /
- exploration potential /
- Bolin Basin Tibet

HTML全文

参考文献(36)

[1]	王成善,张哨楠.青藏高原含油气盆地分析及油气资源预测[J].地球科学:中国地质大学学报,1996,21(2):120-129.
[2]	罗小平,朱剑如,祁开令.西藏岗巴-定日盆地找油前景[J].地球科学:中国地质大学学报,1996,21(2):158-162.
[3]	费琪,邓忠凡.西藏特提斯构造域海相油气前景[J].地球科学:中国地质大学学报,1996,21(2):113-119.
[4]	GRADSTEIN F M,GIBLING M R,SARTI M,et al.Mesozoic Tethyan strata of Thakkhola,Nepal:evidence for the drift and breakup of the Gondwana[J].Palaeogeography,Palaeoclimatology,Palaeoecology,1991,88(3-4):193-218.
[5]	GAETANI M,GARZANTI E.Multicyclic history of the northern India continental margin(northwestern Himalaya)[J].AAPG Bulletin,1991,75(9):1427-1446.
[6]	曾华盛,王津义.西藏岗巴盆地烃源岩评价[J].天然气工业,2003,23(6):16-21.
[7]	ROWLEY D B.Age of initiation of collision between India and Asia:A review of stratigraphic data[J].Earth and Planetary Science Letters,1996,145(1):1-13.
[8]	河北省地质调查院.中华人民共和国区域地质调查报告(1:25万日新幅、札达县幅、姜叶马幅)[R].石家庄:河北省地质调查院,2005.
[9]	LIU GUANGHUA,EINSELE G.Sedimentary history of the Tethyan basin in the Tibetan Himalayas[J].Geologische Rundschau,1994,83,32-61.
[10]	GARZANTI E.Stratigraphy and sedimentary history of the Nepal Tethys Himalaya passive margin[J].Journal of Asian Earth Sciences,1999,17(5-6):805-827.
[11]	西藏地质矿产局区域地质矿产调查大队.中华人民共和国区域地质调查报告(1:100万噶大克幅区域地质报告)[R].北京:地质出版社,1987.
[12]	郭铁鹰,梁定益,张宜智,等.西藏阿里地质[M].武汉;中国地质大学出版社,1991:66-85.
[13]	西藏地质矿产局.西藏自治区区域地质志[M].北京:地质出版社,1993:160-224.
[14]	西藏地质矿产局.西藏自治区岩石地层[M].武汉:中国地质大学出版社,1997:197-202.
[15]	万晓樵,赵文金,李国彪.对西藏岗巴上白垩统的新认识[J].现代地质,2000,14(3):281-285.
[16]	阴家润,万晓樵,金朝雯.东特提斯首条三叠-侏罗系界线剖面[C]//第三届全国地层会议论文集.北京:地质出版社,2000:179-185.
[17]	徐钰林,万晓樵,苟宗海,等.西藏侏罗纪,白垩纪,第三纪地层[M].武汉:中国地质大学出版社,1990.
[18]	李祥辉,王成善,万晓樵,等.西藏江孜县床得剖面侏罗-白垩纪的地层层序及地层划分[J].地层学杂志,1999,23(4):303-309.
[19]	LI XIANGHUI,WANG CHENGSHAN,HU XIUMIAN.Stratigraphy of deep-water Cretaceous deposits in Gyangze,southern Tibet,China[J].Cretaceous Research,2005,26(1):33-41.
[20]	GRADSTEIN F M,ULRICH V R.Stratigraphic evolution of Mesozoic continental margin and oceanic sequences:Northwest Australia and northern Himalayas[J].Marine Geology,1991,102(1-4):131-173.
[21]	JADOUL F,FABRIZIO B,GARZANTI E.The Tethys Himalayan passive margin from Late Triassic to Early Cretaceous(South Tibet)[J].Journal of Asian Earth Sciences,1998,16(2-3):173-194.
[22]	HU XIUMIAN,LUBA J,WANG CHENGSHAN.Upper Jurassic-Lower Cretaceous stratigraphy in south-eastern Tibet:a comparison with the western Himalayas[J].Cretaceous Research,2008,29(2):301-305.
[23]	苟宗海.略论西藏斯匹提页岩的地层分布[J].成都地质学院院报,1989,16(1):16-26.
[24]	WILLEMS H,ZHANG BINGGAO.Cretaceous and Lower Tertiary sediments of the Tibetan Tethys Himalaya in the area of Gamba(South Tibet,PR China)[D].Fachbereich Geowissenschaften,Universitat Bremen,1993:3-27.
[25]	秦建中,刘宝泉,国建英,等.关于碳酸盐烃源岩的评价标准[J].石油实验地质,2004,26(3):281-286.
[26]	邬立言,顾信章,盛志伟,等.生油岩热解快速定量评价[M].北京:科学出版社,1986:30-31.
[27]	庞雄奇,方祖康,陈章明.地史过程中的岩石有机质含量变化及其计算[J].石油学报,1988,9(1):17-24.
[28]	郝石生,高岗,王飞宇,等.高-过成熟海相烃源岩[M].北京:石油工业出版社,1996:98-109.
[29]	程克明,王兆云.高成熟和过成熟海相碳酸盐岩生烃条件评价方法研究[J].中国科学(D辑),1996,26(6):537-543.
[30]	秦建中,郑伦举,腾格尔.海相高演化烃源岩总有机碳恢复系数研究[J].地球科学:中国地质大学学报,2007,32(6):853-860.
[31]	岳来群,李永铁,史晓颖.西藏古错-岗巴盆地下白垩统黑色页岩地质特征及其油气资源意义[J].古地理学报,2006,8(3):307-316.
[32]	赵政璋,李永铁,叶和飞,等.青藏高原海相烃源层的油气生成[M].北京:科学出版社,2000.
[33]	王立成,王成善,李亚林,等.西藏措勤盆地色林错凹陷郎山组分子地球化学特征[J].沉积学报,2009,27(6):1199-1207.
[34]	秦建中,付小东,腾格尔.川东北宣汉-达县地区三叠-志留系海相优质烃源层评价[J].石油实验地质,2008,30(4):367-374.
[35]	TISSOT B P,WELTE D H.Petroleum formation and occurrence[M].Berlin:Springer-Verlag,1984:123-185.
[36]	JENKYNS H C.Cretaceous anoxic events:From continents to oceans[J].Journal of the Geological Society London,1980,137(2):171-188.