Characteristics of the Lower Cretaceous source rock in Biru Basin, Tibet

doi:10.7623/syxb201205011

Editorial office of ACTA PETROLEI SINICA ›› 2012, Vol. 33 ›› Issue (5): 822-829.DOI: 10.7623/syxb201205011

• Petroleum Exploration • Previous Articles Next Articles

Characteristics of the Lower Cretaceous source rock in Biru Basin, Tibet

WANG Xianmei 1　ZHENG Herong 1　WANG Yi 1　QI Kailing 2　WU Xinhe 1

Received:2012-01-24 Revised:2012-06-23 Online:2012-09-25 Published:2012-11-27

西藏比如盆地下白垩统烃源岩特征

王先美 1　郑和荣 1　王　毅 1　祁开令 2　伍新和 1

1　中国石化石油勘探开发研究院　北京　100083；2　中国石化南方勘探公司　四川成都　610041

通讯作者: 王先美
作者简介:王先美，男， 1967年 5月生，2007年获中国科学院地质与地球物理研究所博士学位，现为中国石化石油勘探开发研究院高级工程师，主要从事石油地质、构造地质研究。
基金资助:
国家自然科学基金项目（No.41072160）和中国石化海相前瞻性项目“青藏特提斯活动古地理与油气远景”（T060007ZS15）资助。

Abstract

Abstract:

The Lower Cretaceous Duoni Formation in Biru Basin is dominated by paralic deposits with sedimentary structures of well-developed typical delta facies. Statistical data from different observation points of the residual basin, sample analyses and measurements showed that source rocks of Duoni Formation have a great accumulated thickness, dominant typeⅡ and type Ⅲ kerogens and a high abundance of organic carbon. The TOC ranges mostly from 0.40% to 1.20%, and R_o varies mainly between 2.0% and 5.0%, indicating a high to post maturity stage. Major factors that result in a higher maturity of Duoni Formation hydrocarbon source rock were preliminarily attributed to the Mesozoic regional metamorphism and local tectonic metamorphism caused by formation thickening of the Mesozoic folding, superimposition, magma intrusion and hydrothermal fluid having developed from the late Yanshanian to Himalayan stages under unique evolutionary settings of the Tethys structural domain. As one of residual basins of Tibet, Biru Basin is of Mesozoic source rocks with higher R_o values and regional differences in thermal evolution, therefore, the tectonic evolutionary history of the Himalayan stage should be regarded as a key factor controlling oil & gas accumulation and preservation conditions in Tibet Plateau.

Key words: Biru Basin, Mesozoic, organic matter abundance, maturity of organic matter, organic matter type

摘要：

比如盆地下白垩统多尼组以海陆过渡相沉积体系为主，发育典型三角洲相沉积构造。通过对残留盆地不同部位观测点数据统计、样品测试与分析，认为多尼组烃源岩累计厚度巨大，有机质类型以Ⅱ1型与Ⅲ型为主，有机质丰度较高，TOC主峰分布在0.40%~1.20%；有机质R_o主峰分布在2.00%~5.00%，处于高—过成熟演化阶段。对多尼组烃源岩热演化指标R_o偏高的原因进行探讨，初步认为特提斯构造域独特的构造演化背景下，中生界的褶皱、堆垛加厚，以及燕山期—喜马拉雅期岩浆、热液等方面作用引起的中生界区域变质作用与局部构造变质作用，是导致中生界有机质高演化及其出现演化程度地区性差异的重要因素。由此提出，青藏高原油气勘探与评价应注重喜马拉雅期构造演化对油气富集与保存的研究。

关键词: 比如盆地, 中生界, 有机质丰度, 有机质成熟度, 有机质类型

WANG Xianmei　ZHENG Herong　WANG Yi　QI Kailing　WU Xinhe. Characteristics of the Lower Cretaceous source rock in Biru Basin, Tibet[J]. Editorial office of ACTA PETROLEI SINICA, 2012, 33(5): 822-829.

王先美　郑和荣　王　毅　祁开令　伍新和. 西藏比如盆地下白垩统烃源岩特征[J]. 石油学报, 2012, 33(5): 822-829.

References

[1]鲁兵，李永铁，刘忠，等.青藏高原的盆地形成与分类[J].石油学报，2000，21（2）：21-26.

Lu Bing,Li Yongtie,Liu Zhong,et al.Formation and classification of the basins in the Qinghai-Tibet Plateau[J].Acta Petrolei Sinica，2000，21（2）：21-26.

[2]赵政璋，李永铁，叶和飞，等.青藏高原中生界沉积相及油气储盖层特征[M].北京：科学出版社，2001.

Zhao Zhengzhang,Li Yongtie,Ye Hefei,et al.Mesozoic sedimentary facies and reservoir-caprock features in Qinghai-Tibetan Plateau[M].Beijing：Science Press，2001.

[3]王先美，祁开令，伍新和，等.西藏东北部比如盆地中生界油气苗的发现与意义[J].地质通报，2010，29（6）：863-869.

Wang Xianmei,Qi Kailing,Wu Xinhe,et al.Discovery and deep meaning of Mesozoic oil & gas seepages in Biru basin,Tibet Plateau[J].Geological Bulletin of China，2010，29（6）：863-869.

[4]秦建华，汪名杰，王明光，等.西藏沙丁、荣布地区三叠系—老第三系沉积地质特征[J].岩相古地理，1999，19（4）：14-25.

Qin Jianhua,Wang Mingjie,Wang Mingguang,et al.Sedimentary geology of the Triassic-Paleogene strata in the Shading and Rongbo regions,Xizang[J].Sedimentary Facies and Palaeogeography，1999，19（4）：14-25.

[5]田立富，朱才伐，向树元，等.西藏边坝—洛隆地区下白垩统边坝组的建立及其意义[J].沉积与特提斯地质，2007，27（4）：11-16.

Tian Lifu,Zhu Caifa,Xiang Shuyuan,et al.Establishment and significance of the Lower Cretaceous Banbar Formation in the Banbar-Luorong region,Xizang[J].Sedimentary Geology and Tethyan Geology，2007，27（4）：11-16.

[6]赵澄林，朱筱敏.沉积岩石学[M].第3版，北京：石油工业出版社，2001.

Zhao Chenglin,Zhu Xiaomin.Sedimentary petrography[M].3rd ed.Beijing:Petroleum Industry Press，2001.

[7]赵密福，信荃麟，刘泽容.惠民凹陷临南洼陷滑塌浊积岩的分布规律及其控制因素[J].石油实验地质，2001，23（3）：267-271.

Zhao Mifu,Xin Quanlin,Liu Zerong.Distribution rules of fluxoturbidite in the Linnan sag of the Huimin depression and their control factors[J].Experimental Petroleum Geology，2001，23（3）：267-271.

[8]Kubo Y,Nakajima T.Laboratory experiments and numerical simulation of sediment-wave formation by turbidity currents[J].Marine Geology，2002，192（1）：105-121.

[9]鄢继华，陈世悦，宋国奇，等.三角洲前缘滑塌浊积岩形成过程初探[J].沉积学报，.2004，22（4）：573-578.

Yan Jihua,Chen Shiyue,Song Guoqi,et al.Preliminary study on the formation of fluxoturbidite in front of delta[J].Acta Sedimentologica Sinica，2004，22（4）：573-578.

[10]张关龙，陈世悦，鄢继华，等.三角洲前缘滑塌浊积体形成过程模拟[J].沉积学报，2006，24（1）：50-55.

Zhang Guanlong,Chen Shiyue,Yan Jihua,et al.Simulation of luxoturbidite in front of delta[J].Acta Sedimentologica Sinica，2006，24（1）：50-55.

[11]王先美，伍新和，郑和荣，等.青藏高原比如盆地中-上侏罗统烃源岩[J].石油学报，2011，32（1）：41-48.

Wang Xianmei,Wu Xinhe,Zheng Herong,et al.Hydrocarbon source rock features of Middle-Upper Jurassic Lagongtang Formation in Biru basin,Tibet Plateau[J].Acta Petrolei Sinica，2011，32（1）：41-48.

[12]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，2007，32（6）：853-860.

Qin Jianzhong，Zheng Lunju，Tenger.Study on the restitution coefficient of original total organic carbon for high mature marine hydrocarbon source rocks[J].Earth Science，2007，32（6）：853-860.

[13]丁文龙，李超，苏爱国，等.西藏羌塘盆地中生界海相烃源岩综合地球化学剖面研究及有利生烃区预测[J].岩石学报，2011，27（3）：878-896.

Ding Wenlong，Li Chao，Su Aiguo，et al.Study on the comprehensive geochemical cross section of Mesozoic marine source rocks and prediction of favorable hydrocarbon generation area in Qiangtang basin，Tibet[J].Acta Petrologica Sinica，2011，27（3）：878-896.

[14]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.

Zhao Zhengzhang，Li Yongtie，Ye Hefei，et al.Oil &gas generation of marine facies hydrocarbon source rock in Qinghai-Tibetan Plateau[M].Beijing：Science Press，2000.

[15]王先美.青藏高原比如盆地中生界石油地质特征研究[R].北京：中国石油化工股份有限公司石油勘探开发研究院、中国地质大学，2009.

Wang Xianmei.Petroleum geology characteristics of Mesozoic in Biru Basin,Qinghai-Tibetan Plateau[R].Beijing:Institute of Petroleum Exploration and production，Sinopec & China University of Geosciences，2009.

[16]李荣西，张锡云，金奎励.用镜质体反射率重建沉积盆地构造演化特征[J].矿物学报，2001，21（4）：705-709.

Li Rongxi,Zhang Xiyun,Jin Kuili.Application of vitrinite reflectance to reconstruction of the tectonic features of the Bohai Gulf Basin[J].Acta Mineralogica Sinica，2001，21（4）：705-709.

[17]李亚林，王成善，李永铁.西藏羌塘盆地侏罗系膏盐岩与油气成藏[J].石油学报，2008，29（2）：173-178.

Li Yalin，Wang Chengshan，Li Yongtie.Characteristics of the Jurassic saline deposits and its significance to hydrocarbon accumulation in Qiangtang Basin of Tibet area[J].Acta Petrolei Sinica，2008，29（2）：173-178.

[18]王冠民.西藏措勤盆地构造沉积演化及含油气远景[J].石油学报，2001，22（1）：31-35.

Wang Guanmin.Tectonic-sedimentary evolution of the Cuoqin Basin and its hydrocarbon potential[J].Acta Petrolei Sinica，2001，22（1）：31-35.

[19]王岫岩，云金表，罗笃清，等.西藏羌塘盆地动力学演化与油气前景探讨[J].石油学报，1999，20（3）：38-42.

Wang Xiuyan，Yun Jinbiao，Luo Duqing，et al.Discussion on geodynamic evolution and oil-gas prospect of Qiangtang Basin [J].Acta Petrolei Sinica，1999，20（3）：38-42.

[20]许怀先，蒲秀刚，韩德馨.地表砂岩样品含油气显示与确认——以青藏高原措勤、比如、昌都、可可西里盆地为例[J].石油实验地质，2004，26（1）：68-73.

Xu Huaixian,Pu Xiugang,Han Dexin.Oil-bearing characteristics identification in surface sandstones：taking Cuoqin,Kekexili,Biru and Changdu basins in Tibet for example[J].Petroleum Geology & Expeximent，2004，26（1）：68-73.

[21]王成善，伊海生，刘池洋，等.西藏羌塘盆地古油藏发现及其意义[J].石油与天然气地质，2004，25（2）：139-143.

Wang Chengshan,Yi Haisheng,Liu Chiyang,et al.Discovery of paleo-oil-reservoir in Qiangtang basin in Tibet and its geological significance[J].Oil & Gas Geology，2004，25（2）：139-143.

[22]朱同兴，冯心涛，李宗亮，等.西藏双湖地区江爱达日那发现液态油苗[J].地质通报，2007，26（1）：114-116.

Zhu Tongxing,Feng Xintao,Li Zongliang,et al.Discovery of the liquefied dense oil section in the Jiang’aidarina,Shuanghu area,northern Tibet,China[J].Geological Bulletin of China，2007，26（1）：114-116.

Characteristics of the Lower Cretaceous source rock in Biru Basin, Tibet

西藏比如盆地下白垩统烃源岩特征

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