下扬子海相烃源结构与有效烃源

罗开平; 叶德燎; 周凌方; 彭金宁; 陆永德; 吕俊祥

doi:10.11781/sysydz201601009

下扬子海相烃源结构与有效烃源

doi: 10.11781/sysydz201601009

中国石化石油勘探开发研究院无锡石油地质研究所, 江苏无锡 214126

基金项目: 国家自然科学基金项目(41302118)和中国石化重大先导项目(G5800-13-ZS-TY)资助。

详细信息

作者简介:
罗开平(1964-),男,博士,高级工程师,从事石油地质综合研究。E-mail:luokp.syky@sinopec.com。

中图分类号: TE122.1
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出版历程
- 收稿日期: 2014-11-10
- 修回日期: 2015-11-30
- 刊出日期: 2016-01-28

Composition and effectiveness of marine hydrocarbon sources in the Lower Yangtze area

Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China

摘要

摘要: 晚印支-燕山运动是影响下扬子海相成烃-成藏最重要的构造事件。以此为界,烃源岩的演化分为早期生烃和晚期(二次生烃)2个阶段。与此对应,下扬子海相经历了加里东期、印支期、喜马拉雅期3期成藏,不同成藏期烃源构成具有明显的差异。对于喜马拉雅期的晚期成藏,有效烃源主要来自于二叠系和志留系烃源岩的二次生烃和古油藏(灶)的裂解供烃。借助于烃源岩热史分析,分别求取印支运动之前(T₂末)和断陷盆地叠置之后(E末)烃源岩的成熟度(R_o),后期形成温度补偿且T₂末R_o较低(小于1.3%)的烃源岩范围是二次生烃的有利区。对于古油灶,根据T₂末的下古生界顶面古流体势和有利储层分布范围,推断油气的运移指向和有利聚集区,然后结合燕山运动后志留系泥岩盖层的保存情况,预测燕山运动后古油藏赋存的有利范围。通过上述途径实现对有效烃源的定位。临近有效烃源岩(灶)的范围是晚期成藏的有利地区。
- 有效烃源 /
- 晚印支-燕山运动 /
- 海相 /
- 成烃-成藏 /
- 烃源构成 /
- 下扬子地区
Abstract: Tectonic activity in the Late Indosinian-Yanshanian period was the most important event for marine hydrocarbon generation and accumulation in the Lower Yangtze area. The evolution of source rocks could be classified into early and late (secondary) stages of hydrocarbon generation. Accordingly, 3 hydrocarbon accumulations inmarine sequences in the Lower Yangtze area were formed in the Caledonian, Indosinian and Himalayan periods, respectively. There were obvious differences among hydrocarbon sources in the different accumulation periods. The late hydrocarbon accumulation in the Himalayan period was mainly sourced from the secondary generation of the Permian and Silurian source rocks and the thermal cracking of ancient oil pools. The thermal history of the source rocks indicates that the potential location for secondary hydrocarbon generation was limited to the area where R_o was < 1.3% at the end of the Middle Triassic. Oil and gas migration direction and possible accumulations were identified in the light of paleo-fluid potential for the top of the Lower Paleozoic sequence. Combined with the analysis of preservation conditions of the Silurian mudstone seals after the Yanshanian movement, the distribution of oil accumulations could be predicted. Therefore, the effective source rocks might be determined and the potential late accumulations that were formed in their nearby areas identified.
- effective sources /
- late Indosinian-Yanshanian movement /
- marine sequence /
- hydrocarbon generation and accumulation /
- composition of hydrocarbon source /
- Lower Yangtze area

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参考文献(19)

[1]	张建球.下扬子区中、古生界构造演化与油气藏形成史[J].石油与天然气地质,1996,17(2):146-149. Zhang Jianqiu.Tectonic evolution and hydrocarbon pool forming history of Meso-Paleozoic in Lower Yangtze Region[J].Oil & Gas of Geology,1996,17(2):146-149.
[2]	叶舟,马力,梁兴,等.下扬子独立地块与中生代改造型残留盆地[J].地质科学,2006,41(1):81-101. Ye Zhou,Ma Li,Liang Xing,et al.The independent lower Yang-tze block and Mesozoic reformed residual basins[J].Chinese Journal of Geology,2006,41(1):81-101.
[3]	朱光,徐嘉炜,刘国生,等.下扬子地区前陆变形构造格局及其动力学机制[J].中国区域地质,1999,1(1):73-79. Zhu Guang,Xu Jiawei,Liu Guosheng,et al.Tectonic pattern and dynamic mechanism of the foreland deformation in the Lower Yangtze Region[J].Regional Geology of China,1999,1(1):73-79.
[4]	朱光,刘国生,Dunlap W J,等.郯庐断裂带同造山走滑运动的⁴⁰Ar/³⁹Ar年代学证据[J].科学通报,2004,49(2):190-198. Zhu Guang,Liu Guosheng,Dunlap W J,et al.⁴⁰Ar/³⁹Ar geochronological constraints on syn-orogenic strike-slip movement of Tan-Lu fault zone[J].Chinese Science Bulletin,2004,49(5):499-508.
[5]	丁道桂,王东燕,刘运黎.下扬子地区古生代盆地的改造变形[J].地学前缘,2009,16(4):61-73. Ding Daogui,Wang Dongyan,Liu Yunli.Transformation and deformation of the Paleozoic basins in lower Yangtze areas[J].Earth Science Frontiers,2009,16(4):61-73.
[6]	徐旭辉,周小进,彭金宁.从扬子地区海相盆地演化改造与成藏浅析南黄海勘探方向[J].石油实验地质,2014,36(5):523-531. Xu Xuhui,Zhou Xiaojin,Peng Jinning.Exploration targets in southern Yellow Sea through analysis of tectono-depositional evolution and hydrocarbon accumulation of marine basin in Yangtze area[J].Petroleum Geology & Experiment,2014,36(5):523-531.
[7]	彭金宁,张敏,刘光祥,等.下扬子区上古生界构造作用与油气保存条件分析[J].石油实验地质,2015,37(4):430-438. Peng Jinning,Zhang Min,Liu Guangxiang,et al.Tectonic effects and hydrocarbon preservation conditions in Upper Paleozoic, lower Yangtze region[J].Petroleum Geology & Experiment,2015,37(4):430-438.
[8]	高先志,李浩,刘启东.高邮凹陷断层控油气作用的多样性[J].地球科学与环境学报,2012,34(1):20-28. Gao Xianzhi,LI Hao,Liu Qidong.Various effects of faults on generation, migration and accumulation of oil/gas in Gaoyou Sag[J].Journal of Earth Sciences and Environment,2012,34(1):20-28.
[9]	徐政语,姚根顺,梁兴,等.扬子陆块下古生界页岩气保存条件分析[J].石油实验地质,2015,37(4):407-417. Xu Zhengyu,Yao Genshun,Liang Xing,et al.Shale gas preservation conditions in the Lower Paleozoic, Yangtze block[J].Petroleum Geology & Experiment,2015,37(4):407-417.
[10]	刘树根,马永生,蔡勋育,等.四川盆地震旦系-下古生界天然气成藏过程和特征[J].成都理工大学学报:自然科学版,2009,36(4):345-354. Liu Shugen,Ma Yongsheng,Cai Xunyu,et al.Characteristic and accumulation process of the natural gas from Sinian to Lower Paleozoic in Sichuan Basin,China[J].Journal of Chengdu University of Technology:Science& Technology Edition,2009,36(4):345-354.
[11]	罗开平,丁道桂,吕剑虹,等.南方海相油气勘探中的烃源条件分析:以江汉平原区为例[J].石油实验地质,2008,30(2):133-137. Luo Kaiping,Ding Daogui,Lü Jianhong,et al.Analysis of hydrocarbon source conditions in marine facies petroleum exploration in South China:A case study in the Jianghan Plain Region[J].Petroleum Geology & Experiment,2008,30(2):133-137.
[12]	刘光祥,金之钧,罗开平,等.下扬子区黄桥、句容地区油-源对比研究[J].石油实验地质,2014,36(3):359-364. Liu Guangxiang,Jin Zhijun,Luo Kaiping,et al.Oil and source correlation in Huangqiao and Jurong areas,Lower Yangtze region[J].Petroleum Geology & Experiment,2014,36(3):359-364.
[13]	钟宁宁,赵拮,李艳霞,等.论南方海相层系有效供烃能力的主要控制因素[J].地质学报,2010,84(2):149-158. Zhong Ningning,Zhao Zhe,Li Yanxia,et al.An Approach to the main controls on the potential of efficient hydrocarbon supply of marine sequences in South China[J].Acta Geologica Sinica,2010,84(2):149-158.
[14]	陈安定,刘东鹰,刘子满.江苏下扬子区海相中、古生界烃源岩晚期生烃的论证与定量研究[J].海相油气地质,2001,6(4):27-33. Chen Anding,Liu Dongying,Liu Ziman.Demonstration and quantitative study of late hydrocarbon generation of Mesozoic-Palaeozoic marine source rock in Lower Yangtze Area,Jiangsu province[J].Marine Origin Petroleum Geology,2001,6(4):27-33.
[15]	秦勇,朱炎铭,范炳恒,等.沉积有机质二次生烃理论及其应用[M].北京:地质出版社,2001:13-69. Qing Yong,Zhu Yanming,Fan Bingheng,et al.Secondary hydrocarbon generation theory of sedimentary organic matter and its application[M].Beijing:Geological Publishing House,2001:13-69.
[16]	张有生,秦勇,刘焕杰,等.沉积有机质二次生烃热模拟实验研究[J].地球化学,2002,31(3):273-280. Zhang Yousheng,Qin Yong,Liu Huanjie,et al.Investigation on the Hydrocarbon Regeneration from sedimentary organic matters by pyrolytic simulation[J].Geochimica,2002,31(3):273-280.
[17]	袁玉松,郭彤楼,付孝悦,等.下扬子地区热历史与海相烃源岩二次生烃潜力[J].现代地质,2006,20(2):283-290. Yuan Yusong,Guo Tonglou,Fu Xiaoyue,et al.Thermal history and secondary hydrocarbon generation intensity of marine source rocks in Lower Yangtze Area[J].Geoscience,2006,20(2):283-290.
[18]	辛艳朋,邱楠生,秦建中,等.塔里木盆地奥陶系烃源岩二次生烃研究[J].地球科学与环境学报,2011,33(3):261-267. Xin Yanpeng,Qiu Nansheng,Qin Jianzhong,et al.Study on Se-condary Hydrocarbon Generation of Ordovician Hydrocarbon Source Rock in Tarim Basin[J].Journal of Earth Sciences and Environment,2011,33(3):261-267.
[19]	赵文智,汪泽成,王一刚.四川盆地东北部飞仙关组高效气藏形成机理[J].地质论评,2006,52(5):708-718. Zhao Wenzhi,Wang Zecheng,Wang Yigang.Formation mechanism of highly effective gas pools in the Feixianguan Formation in the NE Sichuan Basin[J].Geological Review,2006,52(5):708-718.