川东南志留系龙马溪组页岩沥青反射率和笔石反射率的应用

仰云峰

doi:10.11781/sysydz201604466

川东南志留系龙马溪组页岩沥青反射率和笔石反射率的应用

doi: 10.11781/sysydz201604466

仰云峰

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"古生界页岩含气性原生有机质控制作用研究"（U1663202）资助。

详细信息

作者简介:
仰云峰(1982—),男,硕士,工程师,从事烃源岩有机岩石学与生烃模式研究。E-mail:yangyf.syky@sinopec.com。

中图分类号: TE135
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出版历程
- 收稿日期: 2016-02-05
- 修回日期: 2016-04-26
- 刊出日期: 2016-07-28

Application of bitumen and graptolite reflectance in the Silurian Longmaxi shale, southeastern Sichuan Basin

Yang Yunfeng

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

摘要

摘要: 川东南地区下志留统龙马溪组海相页岩中发育有较多的形态清晰的笔石碎屑和孔隙充填无定形固体沥青，准确区分两者是研究该地区热演化程度的基础。川东南地区多口钻井龙马溪组页岩反射率测试结果显示，笔石反射率比沥青反射率在区域分布上具有更好的一致性，笔石反射率均大于3.0%，略高于沥青反射率，并沿西南—东北方向热成熟度逐渐增大，对应等效镜质体反射率在2.0%以上，指示川东南龙马溪组页岩处于高—过成熟阶段。但是，笔石反射率与等效镜质体反射率换算关系仍存在不确定性，有待进一步的研究。
- 沥青反射率 /
- 笔石反射率 /
- 页岩 /
- 龙马溪组 /
- 川东南
Abstract: Graptolites with clear morphology and pore-filling amorphous bitumen are abundant in the Lower Silurian Longmaxi shales from the southeastern Sichuan Basin. It is very necessary to distinguish them exactly for thermal maturity research in this area. Reflectance measurements of the Longmaxi shales from several boreholes have revealed that graptolite reflectance has a better consistency on regional distribution than bitumen reflectance. Graptolite reflectance is more than 3.0%, which is a little bit higher than bitumen reflectance, and gradually increases from southwest to northeast. The equivalent vitrinite reflectance based on graptolite reflectance is more than 2.0%, indicating that the Longmaxi shales from the southeastern Sichuan Basin are over-mature. However, the correlation between graptolite reflectance and equivalent vitrinite reflectance is uncertain yet, and needs further study.
- bitumen reflectance /
- graptolite reflectance /
- shale /
- Longmaxi Formation /
- southeastern Sichuan Basin

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参考文献(35)

[1]	吴礼明,丁文龙,张金川,等.渝东南地区下志留统龙马溪组富有机质页岩储层裂缝分布预测[J].石油天然气学报,2011,33(9):43-46. Wu Liming,Ding Wenlong,Zhang Jinchuan,et al.Fracture prediction of organic-enriched shale reservoir in Lower Silurian Longmaxi Formation of southeastern Chongqing area[J].Journal of Oil and Gas Technology,2011,33(9):43-46.
[2]	聂海宽,张金川.页岩气储层类型和特征研究:以四川盆地及其周缘下古生界为例[J].石油实验地质,2011,33(3):219-225. Nie Haikuan,Zhang Jinchuan.Types and characteristics of shale gas reservoir:A case study of Lower Paleozoic in and around Sichuan Basin[J].Petroleum Geology & Experiment,2011,33(3):219-225.
[3]	张金川,聂海宽,徐波,等.四川盆地页岩气成藏地质条件[J].天然气工业,2008,28(2):151-156. Zhang Jinchuan,Nie Haikuan,Xu Bo,et al.Geological condition of shale gas accumulation in Sichuan Basin[J].Natural Gas Industry,2008,28(2):151-156.
[4]	蒲泊伶,蒋有录,王毅,等.四川盆地下志留统龙马溪组页岩气成藏条件及有利地区分析[J].石油学报,2010,31(2):225-230. Pu Boling,Jiang Youlu,Wang Yi,et al.Reservoir-forming conditions and favorable exploration zones of shale gas in Lower Silurian Longmaxi Formation of Sichuan Basin[J].Acta Petrolei Sinica,2010,31(2):225-230.
[5]	郭彤楼,刘若冰.复杂构造区高演化程度海相页岩气勘探突破的启示:以四川盆地东部盆缘JY1井为例[J].天然气地球科学,2013,24(4):643-651. Guo Tonglou,Liu Ruobing.Implication from marine shale gas exploration breakthrough in complicated structural area at high thermal stage:Taking Longmaxi Formation in well JY1 as an example[J].Natural Gas Geoscience,2013,24(4):643-651.
[6]	郭彤楼,张汉荣.四川盆地焦石坝页岩气田形成与富集高产模式[J].石油勘探与开发,2014,41(1):28-36. Guo Tonglou,Zhang Hanrong.Formation and enrichment mode of Jiaoshiba shale gas field,Sichuan Basin[J].Petroleum Exploration and Development,2014,41(1):28-36.
[7]	Cole G A.Graptolite-chitinozoan reflectance and its relationship to other geochemical maturity indicators in the Silurian Qusaiba shale,Saudi Arabia[J].Energy & Fuels,1994,8(6):1443-1459.
[8]	Tricker P M,Marshall J E A,Badman T D.Chitinozoan reflectance:A Lower Palaeozoic thermal maturity indicator[J].Marine and Petroleum Geology,1992,9(3):302-307.
[9]	Obermajer M,Fowler M G,Goodarzi F,et al.Assessing thermal maturity of Palaeozoic rocks from reflectance of chitinozoa as constrained by geochemical indicators:An example from southern Ontario,Canada[J].Marine and Petroleum Geology,1996,13(8):907-919.
[10]	Chen Xu,Rong Jiayu,Mitchell C E,et al.Late Ordovician to earliest Silurian graptolite and brachiopod zonation from Yangtze region,South China with a global correlation[J].Geological Magazine,2000,137(6):623-650.
[11]	陈旭,戎嘉余,周志毅,等.上扬子区奥陶—志留纪之交的黔中隆起和宜昌上升[J].科学通报,2001,46(12):1052-1056. Chen Xu,Rong Jiayu,Zhou Zhiyi,et al.The central Guizhou and Yichang uplifts,Upper Yangtze region,between Ordovician and Silurian[J].Chinese Science Bulletin,2001,46(18):1580-1584.
[12]	Schoenherr J,Littke R,Urai J L,et al.Polyphase thermal evolution in the Infra-Cambrian Are Group (South Oman Salt Basin) as deduced by maturity of solid reservoir bitumen[J].Organic Geochemistry,2007,38(8):1293-1318.
[13]	Petersen H I,Schovsbo N H,Nielsen A T.Reflectance measurements of zooclasts and solid bitumen in Lower Paleozoic shales,southern Scandinavia:Correlation to vitrinite reflectance[J].International Journal of Coal Geology,2013,114:1-18.
[14]	Landis C R,Castaño J R.Maturation and bulk chemical properties of a suite of solid hydrocarbons[J].Organic Geochemistry,1995,22(1):137-149.
[15]	Jacob H.Classification,structure,genesis and practical importance of natural solid bitumen ("migrabitumen")[J].International Journal of Coal Geology,1989,11(1):65-79.
[16]	Xiao Xianming,Wilkins R W T,Liu Dehan,et al.Investigation of thermal maturity of lower Paleozoic hydrocarbon source rocks by means of vitrinite-like maceral reflectance:A Tarim Basin case study[J].Organic Geochemistry,2000,31(10):1041-1052.
[17]	刘德汉,史继扬.高演化碳酸盐烃源岩非常规评价方法探讨[J].石油勘探与开发,1994,21(3):113-115. Liu Dehan,Shi Jiyang.Unconventional evaluation methods for highly evolved carbonate source rocks[J].Petroleum Exploration & Development,1994,21(3):113-115.
[18]	Link C M,Bustin R M,Goodarzi F.Petrology of graptolites and their utility as indices of thermal maturity in Lower Paleozoic strata in northern Yukon,Canada[J].International Journal of Coal Geology,1990,15(2):113-135.
[19]	Briggs D E G,Kear A J,Baas M,et al.Decay and composition of the hemichordate Rhabdopleura:Implications for the taphonomy of graptolites[J].Lethaia,1995,28(1):15-23.
[20]	Goodarzi F.Organic petrography of graptolite fragments from Turkey[J].Marine and Petroleum Geology,1984,1(3):202-210.
[21]	Hunt J M.Petroleum geochemistry and geology[M].New York:W. H. Freeman and Company,1996:1-743.
[22]	Taylor G H,Teichmüller M,Davis A,et al.Organic petrology[M].Berlin,Stuttgart:Gebrüder Borntraeger,1998:1-704.
[23]	Curiale J A.Origin of solid bitumens,with emphasis on biological marker results[J].Organic Geochemistry,1986,10(1-3):559-580.
[24]	Bustin R M,Link C M,Goodarzi F.Optical properties and chemistry of graptolite periderm following laboratory simulated maturation[J].Organic Geochemistry,1989,14(4):355-364.
[25]	Clausen C D,Teichmüller M.Die Bedeutung der Graptolithenfragmente im Paläozoikum von Soest-Erwitte für Stratigraphie und Inkohlung[J].Fortschritte in der Geologie von Rheinland und Westfalen,1982,30:145-167.
[26]	Goodarzi F,Norford B S.Graptolites as indicators of the temperature histories of rocks[J].Journal of the Geological Society,1985,142(6):1089-1099.
[27]	Bertrand R,Héroux Y.Chitinozoan,graptolite,and scolecodont reflectance as an alternative to vitrinite and pyrobitumen reflectance in Ordovician and Silurian strata,Anticosti Island,Quebec,Canada[J].American Association of Petroleum Geologists Bulletin,1987,71(8):951-957.
[28]	Goodarzi F,Norford B S.Variation of graptolite reflectance with depth of burial[J].International Journal of Coal Geology,1989,11(2):127-141.
[29]	Bertrand R.Correlations among the reflectances of vitrinite,chitinozoans,graptolites and scolecodonts[J].Organic Geochemistry,1990,15(6):565-574.
[30]	Rantitsch G.Coalification and graphitization of graptolites in the anchizone and lower epizone[J].International Journal of Coal Geology,1995,27(1):1-22.
[31]	曹长群,尚庆华,方一亭.探讨笔石反射率对奥陶系、志留系烃源岩成熟度的指示作用[J].古生物学报,2000,39(1):151-156. Cao Changqun,Shang Qinghua,Fang Yiting.The study of graptolite reflectance as the indicator of source rock maturation in Ordovician and Silurian of Tarim Basin,Ordos,Jiangsu area[J].Acta Palaeontologica Sinica,2000,39(1):151-156.
[32]	丰国秀,陈盛吉.岩石中沥青反射率与镜质体反射率之间的关系[J].天然气工业,1988,8(3):20-25. Feng Guoxiu,Chen Shengji.Relationship between the reflectance of bitumen and vitrinite in rock[J].Natural Gas Industry,1988,8(3):20-25.
[33]	Riediger C L.Solid bitumen reflectance and Rock-Eval T_max as maturation indices:An example from the "Nordegg Member",Western Canada Sedimentary Basin[J].International Journal of Coal Geology,1993,22(3-4):295-315.
[34]	Bertrand R,Malo M.Dispersed organic matter reflectance and thermal maturation in four hydrocarbon exploration wells in the Hudson Bay Basin:Regional implications[Z].Geological Survey of Canada,Open File 7066,2012:1-52,doi: 10.4095/289709.
[35]	Luo Qingyong,Zhong Ningning,Dai Na,et al.Graptolite-derived organic matter in the Wufeng-Longmaxi formations (Upper Ordovician-Lower Silurian) of southeastern Chongqing,China:Implications for gas shale evaluation[J].International Journal of Coal Geology,2016,153:87-98.