渤海海域沙西北地区潜山油源及成藏特征

doi:10.11743/ogg20180405

石油与天然气地质 ›› 2018, Vol. 39 ›› Issue (4): 676-684.doi: 10.11743/ogg20180405

渤海海域沙西北地区潜山油源及成藏特征

王奇^1,2, 郝芳^1,2, 徐长贵³, 韦阿娟³, 孙中恒⁴, 操义军⁴, 邹华耀⁴

1. 中国石油大学(华东) 地球科学与技术学院, 山东青岛 266580;
2. 海洋国家实验室海洋矿物资源评价与探测技术功能实验室, 山东青岛 266071;
3. 中国海洋石油有限公司天津分公司, 天津 300452;
4. 中国石油大学(北京) 油气资源与探测国家重点实验室, 北京 102249

收稿日期:2016-06-20 修回日期:2018-01-05 出版日期:2018-08-28 发布日期:2018-07-23
通讯作者: 邹华耀(1963-),男,教授,油气藏形成机理与分布规律;E-mail:huayaozou@cup.edu.cn E-mail:huayaozou@cup.edu.cn
作者简介:王奇(1986-),男,博士,油气藏形成机理与分布规律。E-mail:wangqi@upc.edu.cn。
基金资助:
国家科技重大专项（2016ZX05024-003-008）；中国博士后科学基金项目（2018M630810）。

Origin and accumulation characterization of petroleum in buried hill reservoirs in Shaxibei area,Bohai Sea

Wang Qi^1,2, Hao Fang^1,2, Xu Changgui³, Wei Ajuan³, Sun Zhongheng⁴, Cao Yijun⁴, Zou Huayao⁴

1. School of Geosciences, China University of Petroleum(East China), Qingdao, Shandong 266580, China;
2. Laboratory for Marine Mineral Resources, Pilot National Laboratory for Marine Science and Technology, Qingdao, Shandong 266071, China;
3. Tianjin Branch of CNOOC Ltd., Tianjin 300452, China;
4. State Key laboratory of Petroleum Resources and Prospecting, China University of Petroleum(Beijing), Beijing 102249, China

Received:2016-06-20 Revised:2018-01-05 Online:2018-08-28 Published:2018-07-23

摘要/Abstract

摘要： 综合地质与地球化学方法，探讨了渤海海域沙西北地区潜山的油气来源及成藏特征。生物标志物参数表明沙西北地区已发现的原油位于沙河街组。曹妃甸2-1油田的潜山储层岩性为碳酸盐岩，潜山的原油具有高的伽马蜡烷指数（G/H）以及相对低4-甲基甾烷参数（4MSI），具有相对轻的正构烷烃碳同位素值（整体轻于-29‰），主要为沙河街组一段（沙一段）的油源。曹妃甸1-6油田为花岗岩潜山储层，潜山的原油具有相对高的4MSI（>0.4），正构烷烃的碳同位素值偏重（重于-29%），可能指示着以沙三为主的油源。曹妃甸2-1潜山直接披覆沙一段，沙一段源岩生成的原油可近距离充注至潜山储层中，为披覆式的源储对接成藏模式。曹妃甸1-6油田上覆为东营组，其丰度与热演化程度低，主要作盖层。歧口凹陷的原油侧向通过砂体运移侧向充注至曹妃甸1-6潜山圈闭中，表现为侧向砂体输导油气成藏特征。通过岩心观察和铸体薄片实验分析了CFD2-1-2井潜山风化壳结构特征，揭示了沙西北地区潜山风化壳结构可能不具备侧向长距离输导油气的能力，与潜山直接披覆接触的有效烃源岩或者发育沟通源储的砂体是潜山油气成藏的基础。

关键词: 油源, 成藏模式, 潜山, 沙西北地区, 渤海海域

Abstract: The study discussed the origin and accumulation characteristics of hydrocarbon in buried hills in Shaxibei area,Bohai Sea,through geological and geochemical research methods.Analysis of biomarker parameters reveals that the proved buried hill oil samples in Shaxibei area originate from the Shahejie Formation source rocks.Oil samples from the CFD2-1 buried hill carbonate reservoir have a high G/H index and relatively low 4MSI,and are characterized by depleted ¹³C for n-alkanes(less than -29‰ as a whole).Such characteristics may be an indicator of the oil origin from the Es¹ source rocks.Oil samples, taken from the granite reservoir of the CFD1-6 oil fields,are typified by relatively higher 4MSI (more than 0.4) and heavier carbon isotope of n-alkanes (more than -29‰), which may indicate that CFD1-6 buried hill oil is dominated by the Es³-derived oil. The CFD2-1 buried hill is overlain by the Es¹ formation unit,and the mature Es¹ source rock may supply adequate petroleum for charging the carbonate reservoirs without long migration distance.This accumulation model can be referred to as the assemblage of generation from the draped source rock and vertically charging to the underlying carbonate reservoir.CFD1-6 granite buried hill is covered by the Ed shale,being characterized by low organic matter abundance and thermal maturity,which can be served as a seal for oil accumulation.Oil generated from the source rock in the Qikou Sag can be transported through the laterally distributed sand body and charge the CFD1-6 buried hill traps,exemplifying a hydrocarbon accumulation model of migration through lateral sand body.On the basis of core observation and casting thin section experiments,we analyzed the textural characteristics of weathered crust from Well CFD2-1-2.The results show that the weathered crust structure in Shaxibei area may not be able to receive the laterally transporting petroleum from sags to buried hill traps,while the overlying effective source rocks on the surface of buried hills or the occurrence of sand bodies communicating source and reservoir are fundamental for hydrocarbon accumulation in buried hills.

Key words: oil kitchen, accumulation model, buried hill, Shaxibei area, Bohai Sea

中图分类号:

TE122.1

王奇,郝芳,徐长贵,等. 渤海海域沙西北地区潜山油源及成藏特征[J]. 石油与天然气地质, 2018, 39(4): 676-684. doi: 10.11743/ogg20180405 Wang Qi,Hao Fang,Xu Changgui,et al. Origin and accumulation characterization of petroleum in buried hill reservoirs in Shaxibei area,Bohai Sea[J]. Oil & Gas Geology, 2018, 39(4): 676-684. doi: 10.11743/ogg20180405

参考文献

[1] 邹华耀,周心怀,鲍晓欢,等.渤海海域古近系、新近系原油富集/贫化控制因素与成藏模式[J].石油学报,2010,31(6):885-893. Zou Huayao,Zhou Xinhuai,Bao Xiaohuan,et al.Controlling factors and models for hydrocarbon enrichment/depletion in Paleogene and Neogene,Bohai sea[J].Acta Petrolei Sinica,2010,31(6):885-893.
[2] 李素梅,董月霞,王政军,等.南堡凹陷潜山原油特征与成因探讨[J].沉积学报,2014,32(02):376-384. Li Sumei,Dong Yuexia,Wang Zhengjun,et al.Characteristics and formation mechanism of deep oils from Nanpu depression,Bohai Bay Basin[J].Acta Sedimentologica Sinica,2014,32(02):376-384.
[3] Hao Fang,Zhou Xinhuai,Zhu Yangming,et al.Lacustrine source rock deposition in response to co-evolution of environments and organisms controlled by tectonic subsidence and climate,Bohai Bay Basin,China[J].Organic Geochemistry,2011,42(4):323-339.
[4] 姜福杰,庞雄奇,姜振学,等.渤海海域沙三段烃源岩评价及排烃特征[J].石油学报,2010,31(6):906-912. Jiang Fujie,Pang Xiongqi,Jiang Zhenxue,et al.The quality evaluation and hydrocarbon-expulsion characters of source rocks in the 3rd member of Shahejie Formation in the Bohai sea[J].2010,31(6):906-912.
[5] 傅宁,邓运华,张功成,等.南海北部叠合断陷盆地海陆过渡相烃源岩及成藏贡献-以珠二坳陷白云凹陷为例[J].石油学报,2010,31(04):559-565. Fu Ning,Deng Yunhua,Zhang Gongcheng,et al.Transitional source rock and its contribution to hydrocarbon accumulation in superimpose rift-subsidence basin of northern South China Sea:Taking Baiyun Sag of ZhuⅡdepression as an example[J].Acta Petrolei Sinica,2010,31(04):559-565.
[6] 张立平,黄第藩,廖志勤.伽马蜡烷-水体分层的地球化学标志[J].沉积学报,1999,17(01):136-140. Zhang Liping,Huang Difan,Liao Zhiqin.Gammacerane-geochemical indicator of water Column stratification[J].Acta Sedimentologica Sinica,1999,17(01):136-140.
[7] Hao Fang,Zhou Xinhuai,Zhu Yangming,et al.Charging of oil fields surrounding the Shaleitian uplift from multiple source rock intervals and generative kitchens,Bohai Bay basin,China[J].Marine and Petroleum Geology,2010,27(9):1910-1926.
[8] 李素梅,郭栋.东营凹陷原油单体烃碳同位素特征及其在油源识别中的应用[J].现代地质,2010,24(02):252-258. Li Sumei,Guo Dong.Characteristics and application of compound specific isotope in oil-source identification for oils in Dongying depression,Bohai Bay Basin[J].Geosicence,2010,24(02):252-258.
[9] 张文正,裴戈,关德师,等.中国几个盆地原油轻烃单体和正构烷烃系列分子碳同位素研究[J].地质论评,1993,39(1):79-88. Zhang Wenzheng,Pei Ge,Guan Deshi,et al.The carbon isotopic composition of the light hydrocarbon monomer and normal alkane series molecules from crude oil of some petroliferous basins in China[J].Geological Review,1993,39(1):79-88.
[10] Li Sumei,Amrani Alon,Pang Xiongqi,et al.Origin and quantitative source assessment of deep oils in the Tazhong Uplift,Tarim Basin[J].Organic Geochemistry,2015,78:1-22.
[11] 李素梅,庞雄奇,万中华.南堡凹陷混源油分布与主力烃源岩识别[J].地球科学(中国地质大学学报),2011,36(06):1064-1072. Li Sumei,Pang Xiongqi,Wan Zhonghua.Mixed oil distribution and source rock discrimination of Nanpu depression,Bohaibay Basin[J].Earth Science-Journal of China University of Geosciences,2011,36(06):1064-1072.
[12] Wang Qi,Hao Fang,Xu Changgui,et al.Geochemical characterization of QHD29 oils on the eastern margin of Shijiutuo uplift,Bohai Sea,China:Insights from biomarker and stable carbon isotope analysis[J].Marine and Petroleum Geology,2015,64:266-275.
[13] 董月霞,赵宗举,曹中宏,等.南堡凹陷奥陶系碳酸盐岩岩溶残丘圈闭勘探潜力及意义[J].石油学报,2015,36(06):653-663. Dong Yuexia,Zhao Zongju,Cao Zhonghong,et al.Exploration potential and significance of Ordovician carbonate karst monadnock traps in Nanpu sag[J].Acta Petrolei Sinica,2015,36(06):653-663.
[14] 王拥军,张宝民,王政军,等.渤海湾盆地南堡凹陷奥陶系潜山油气地质特征与成藏主控因素[J].天然气地球科学,2012,23(01):51-59. Wang Yongjun,Zhang Baomin,Wang Zhengjun,et al.Geological characteristics of Ordovician butied hill and main factors of oil/gas accumulation in Nanpu sag,Bohai Bay Basin,China[J].Natural Gas Geoscience,2012,23(01):51-59.
[15] 刘畅,陈冬霞,董月霞,等.断层对南堡凹陷潜山油气藏的控制作用[J].石油与天然气地质学,2015,36(01):43-50. Liu Chang,Chen Dongxia,Dong Yuexia,et al.Control of faults on hydrocarbon accumulation of buried hill reservoirs in the Nanpu Sag,Bohai Bay Basin[J].Oil & Gas Geology,2015,36(01):43-50.
[16] Wang Qi,Zou Huayao,Hao Fang,et al.Modeling hydrocarbon generation from the Paleogene source rocks in Liaodong Bay,Bohai Sea:A study on gas potential of oil-prone source rocks[J].Organic Geochemistry,2014,76:204-219.
[17] 田金强.渤海湾地区大中型油气田成藏机理与模式[D].北京:中国石油大学(北京),2011 Tian Jinqiang.Mechanism and model of hydrocarbon accumulation of large and medium-sized oil and gas fields in Bohai Bay Area[D].Beijing:China University of Petroleum(Beijing),2011.
[18] Zuo Y H,Qiu N S,Zhang Y et al.Geothermal regime and hydrocarbon kitchen evolution of the offshore Bohai Bay Basin,North China[J].AAPG Bulletin,2011,95(5):749-769.

渤海海域沙西北地区潜山油源及成藏特征

Origin and accumulation characterization of petroleum in buried hill reservoirs in Shaxibei area,Bohai Sea

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