渤中19-6气田变质岩储层热液型裂缝充填物及油气地质意义

doi:10.11885/j.issn.1674-5086.2023.04.17.05

摘要/Abstract

摘要： 渤海湾盆地渤中19-6气田是2018年勘探发现的特大型凝析气田。变质岩潜山储集系统中发育的裂缝是油气的主要渗流通道和储集空间，而裂缝充填物记录了储集层的流体作用及演化过程，故针对裂缝充填物的系统研究对于油气勘探开发具有重要意义。在系统观察渤中19-6气田典型岩芯铸体薄片的基础上，综合运用电子探针、LA-ICPMS、阴极发光和荧光分析等实验方法，分析裂缝充填物的地球化学特征及其与烃类物质的赋存关系，探讨研究区储层经历的热液活动和油气运移特点及热液活动对变质岩储层物性的影响。研究表明： 1）热液型裂缝充填矿物主要由镁菱铁矿+铁白云石+石英、镁菱铁矿+石英、铁白云石+石英3种矿物组合构成； 2）镁菱铁矿和铁白云石的原位微区地球化学特征显示其为同期热液流体成因； 3）烃类物质主要为赋存于铁白云石中的束缚沥青和赋存于镁菱铁矿中的烃类包裹体，热液活动和油气运移具有同时性，属于同期发生的两类地质事件； 4）热液流体对于储集岩裂缝的闭合作用远大于溶蚀扩张作用，对储集岩物性主要起破坏作用。

关键词: 渤海湾盆地, 渤中19-6气田, 变质岩潜山, 裂缝充填物, 热液矿物

Abstract: The Bozhong 19–6 Gas Field within metamorphic buried hills is a giant one discovered in 2018. The fractures developed in the metamorphic rock buried hill reservoir system are the main seepage channels and storage spaces for oil and gas, and the fracture fillings record the fluid action and evolution process of the reservoir. Therefore, systematic research on fracture fillings is of great significance for oil and gas exploration and development. Based on systematic observation of cores and the casting thin sections from metamorphic buried hill reservoir, we illustrate the geochemical characteristics of the hydrothermal fluid activity and petroleum migration happening to the reservoir and the hydrothermal influence on the reservoir using electron microprobe analysis, LA-ICPMS, cathodoluminescence and fluorometric analysis. The results show that: 1) hydrothermal minerals in fractures include three types of aessemblages which are magnesian siderite+ankerite+quartz, magnesian siderite+quartz, ankerite + quartz. 2) the in-situ geochemical characteristics of magnesian siderite and ankerite indicate the genesis of contemporaneous hydrothermal fluids. 3) hydrocarbons are usually occurred as fixed bitumen hosted in ankerite and inclusions hosted in magnesian siderite. The hydrothermal activity and petroleum migration likely took place at the same time and they were the two contemporaneous geological events. 4) more than the corrosion effect that the hydrothermal fluid took, hydrothermal fluid closing the fractures had damaged the physical property of the reservoir.

Key words: Bohai Bay Basin, Bozhong 19–6 Gas Field, metamorphic buried hill, fracture fillings, hydrothermal minerals

中图分类号:

TE122
P595

周翊, 郭玉洁, 罗宇航, 王岩松, 唐洪明. 渤中19-6气田变质岩储层热液型裂缝充填物及油气地质意义[J]. 西南石油大学学报(自然科学版), 2024, 46(5): 80-96.

ZHOU Yi, GUO Yujie, LUO Yuhang, WANG Yansong, TANG Hongming. Metamorphic Buried Hill Reservoir of Bozhong 19–6 Gas Field: The Characteristics of Hydrothermal Fracture Fillings and Their Geological Significance of Petroleum[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2024, 46(5): 80-96.

0
/ / 推荐

导出引用管理器 EndNote|Ris|BibTeX

链接本文: http://journal15.magtechjournal.com/Jwk_xnzk/CN/10.11885/j.issn.1674-5086.2023.04.17.05

http://journal15.magtechjournal.com/Jwk_xnzk/CN/Y2024/V46/I5/80

参考文献

[1] 天工.渤海湾盆地渤中196 大型凝析气田探明地质储量增至近3×10⁸ t[J].天然气工业, 2020, 40（1）:54.TIAN Gong.The proved geological reserves of the Bozhong 19–6 large condensate gas field in the Bohai Bay Basin have increased to nearly 3×108 t[J].Natural Gas Industry, 2020, 40(1): 54.
[2] 侯明才,曹海洋,李慧勇,等.渤海海域渤中196 构造带深层潜山储层特征及其控制因素[J].天然气工业, 2019, 39（1）:33-44.doi:10.3787/j.issn.10000976.2019.01.004 HOU Mingcai, CAO Haiyang, LI Huiyong, et al.Characteristics and controlling factors of deep buriedhill reservoirs in the Bozhong19–6 Structural Belt, Bohai Sea Area[J].Natural Gas Industry, 2019, 39(1): 33–44.doi: 10.3787/j.issn.10000976.2019.01.004
[3] 叶涛,牛成民,王清斌,等.渤海湾盆地大型基岩潜山储层特征及其控制因素——以渤中196 凝析气田为例[J].地质学报, 2021, 95（6）:1889-1902.doi:10.3969/j.issn.00015717.2021.06.015 YE Tao, NIU Chengmin, WANG Qingbin, et al.Characteristics and controlling factors of large bedrock buriedhill reservoirs in the Bohai Bay Basin: A case study of the BZ196 condensate field[J].Acta Geologica Sinica, 2021, 95(6): 1889–1902.doi: 10.3969/j.issn.00015717.2021.06.015
[4] 范洪军,罗江华,牛涛,等.渤中19-6凝析气田太古界潜山储层裂缝特征及低渗主控因素[J].中国海上油气, 2021, 33（4）:85-93.doi:10.11935/j.issn.16731506.2021.04.011 FAN Hongjun, LUO Jianghua, NIU Tao, et al.Fracture characteristics and low permeability main controlling factors of Archean buried hill reservoirs in BZ19-6 condensate field[J].China Offshore Oil and Gas, 2021, 33(4): 85–93.doi: 10.11935/j.issn.16731506.2021.04.011
[5] 刘小洪,李宁辛,冯明友,等.裂缝充填矿物和蚀变晕对火山岩储集层流体作用的指示——以克拉美丽气田滴西地区为例[J].矿物岩石地球化学通报, 2019, 38（3）:539-548.doi:10.19658/j.issn.10072802.2019.38.076 LIU Xiaohong, LI Ningxin, FENG Mingyou, et al.Fracture fillings and alteration halo in volcanic reservoirs as indicator of fluid activities in the Dixi Area in the Kelameili Gas Field, Junggar Basin, northwestern China[J].Bulletin of Mineralogy, Petrology and Geochemistry, 2019, 38(3): 539–548.doi: 10.19658/j.issn.10072802.2019.38.076
[6] 高有峰,刘万洙,纪学雁,等.松辽盆地营城组火山岩成岩作用类型特征及其对储层物性的影响[J].吉林大学学报（地球科学版）, 2007, 37（6）:1251-1258.doi:10.3969/j.issn.16715888.2007.06.024 GAO Youfeng, LIU Wanzhu, JI Xueyan, et al.Diagenesis types and features of volcanic rocks and its impact on porosity and permeability in Yingcheng Formation, Songliao Basin[J].Journal of Jilin University (Earth Science Edition), 2007, 37(6): 1251–1258.doi: 10.3969/j.issn.16715888.2007.06.024
[7] 王乃军,罗静兰,刘华清,等.歧口凹陷沙河街组火山岩成岩作用及对储集性能的控制[J].地球学报, 2012, 33（3）:360-370.doi:10.3975/cagsb.2012.03.10 WANG Naijun, LUO Jinglan, LIU Huaqing, et al.Diagenesis of volcanic rocks in Shahejie Formation of Qikou Depression and its control over reservoir performance[J].Acta Geoscientica Sinica, 2012, 33(3): 360–370.doi: 10.3975/cagsb.2012.03.10
[8] 宋国民,张艳,李慧勇,等.渤中凹陷19-6区太古界潜山变质岩岩石类型及鉴别特征[J].世界地质, 2020, 39（2）:344-352.doi:10.3969/j.issn.10045589.2020.02.009 SONG Guomin, ZHANG Yan, LI Huiyong, et al.Types and identification characteristics of Archean metamorphic rocks of buried hill in 19–6 Area of Bozhong Sag[J].Global Geology, 2020, 39(2): 344–352.doi: 10.3969/j.iss n.10045589.2020.02.009
[9] 叶涛,韦阿娟,曾金昌,等.渤海湾盆地中生代构造差异演化与潜山油气差异富集[J].地质科学, 2019, 54（4）:1135-1154.doi:10.12017/dzkx.2019.064 YE Tao, WEI Ajuan, ZENG Jinchang, et al.Structure differential evolution in Mesozoic Era and its controlling to hydrocarbon enrichment of basement in Bohai Bay Basin, eastern of China[J].Chinese Journal of Geology, 2019, 54(4): 1135–1154.doi: 10.12017/dzkx.2019.064
[10] 叶涛,韦阿娟,鲁凤婷,等.渤海海域西南部前新生代反转构造特征及成因机制[J].地质学报, 2019, 93（2）:317-328.doi:10.3969/j.issn.00015717.2019.02.004 YE Tao, WEI Ajuan, LU Fengting, et al.Characteristics of inversion tectonics of Precenozoic and formation mechanism in southwest of Bohai Bay Area[J].Acta Geologica Sinica, 2019, 93(2): 317–328.doi: 10.3969/j.issn.00015717.2019.02.004
[11] 薛永安.渤海海域深层天然气勘探的突破与启示[J].天然气工业, 2019, 39（1）:11-20.doi:10.3787/j.issn.10000976.2019.01.002 XUE Yong'an.The breakthrough of the deepburied gas exploration in the Bohai Sea Area and its enlightenment[J].Natural Gas Industry, 2019, 39(1): 11–20.doi: 10.3787/j.issn.10000976.2019.01.002
[12] PATON C, HELLSTROM J, PAUL B, et al.Iolite: Freeware for the visualization and processing of mass spectrometric data[J].Journal of Analytical Atomic Spectrometry, 2001, 26(12): 2508–2518.doi: 10.1039/c1ja10172b
[13] 涂光炽,林学农,章振根.贵州西部菱铁矿矿床成因的探讨[C].北京：菱铁矿矿床学术会议, 1983.TU Guangchi, LIN Xuenong, ZHANG Zhengen.Discussion on the genesis of siderite deposits in western Guizhou[C].Beijing: Proceedings of the Academic Conference on Siderite Deposits, 1983.
[14] MIDDLETON G V, CHURCH M J.Encyclopaedia of sediments and sedimentary rocks[M].Dordrecht: Kluwer Academic Publishers, 2003, 19–21.
[15] 南京大学地质学系.地球化学[M].北京：科学出版社, 1961.Department of Geology, Nanjing University.Geochemistry[M].Beijing: Science Press, 1961.
[16] PIERSON B J.The control of cathodoluminescence in dolomite by iron and manganese[J].Sedimentology, 1981, 28(5): 601–610.doi: 10.1111/j.13653091.1981.tb01924.x
[17] 黄思静.碳酸盐矿物的阴极发光性与其Fe, Mn含量的关系[J].矿物岩石, 1992, 12（4）:74-79.doi:10.19719/j.cnki.10016872.1992.04.011 HUANG Sijing.Relationship between cathodoluminescence and concentration of iron and manganese in carbonate minerals[J].Mineralogy and Petrology, 1992, 12(4): 74–79.doi: 10.19719/j.cnki.10016872.1992.04.011
[18] TEN HAVE T, HEIJNEN W.Cathodoluminescence activation and zonation in carbonate rocks: An experimental approach[J].Geologie en Mijnbouw, 1985, 64(3): 297–310.
[19] BOYNTON W V.Cosmochemistry of the rare earth elements: Meteorite studies[J].Rare Earth Element Geochemistry, 1983, 2: 63–114.doi: 10.1016/B9780444421487.500083
[20] 陈丽华,郭舜玲,王衍琦,等.中国油气储层研究图集:自生矿物显微荧光阴极发光:5卷[M].北京：石油工业出版社, 1994.CHEN Lihua, GUO Shunling, WANG Yanqi, et al.Atlas of oil and gas reservoir research in China: Authigenic mineral microfluorescence cathodeluminescence: Vol 5[M].Beijing: Petroleum Industry Press, 1994.
[21] STOFFREGEN R E.Genesis of acidsulfate alteration and AuCuAg mineralization at Summitville, Colorado[J].Economic Geology, 1987, 82(6): 1575–1591.doi: 10.2113/gsecongeo.82.6.1575
[22] VELDE B.Origin and mineralogy of clays: Clays and the environment[M].Berlin: Springer, 1995.
[23] 杨时惠,阙梅英.西昌—滇中地区磁铁矿特征及其矿床成因[M].重庆：重庆出版社, 1987.YANG Shihui, QUE Meiying.Characteristics and genesis of magnetite deposits in Xichang – central Yunnan region[M].Chongqing: Chongqing Press, 1987.
[24] 朱东亚,金之钧,孙冬胜,等.南方震旦系灯影组热液白云岩化及其对储层形成的影响研究——以黔中隆起为例[J].地质科学, 2014, 49（1）:161-175.doi:10.3969/j.issn.05635020.2014.01.012 ZHU Dongya, JIN Zhijun, SUN Dongsheng, et al.Hydrothermally dolomitized reservoir bed in Sinian Dengying Formation, northern China: An example from Central Guizhou Uplift[J].Earth Science, 2014, 49(1): 161–175.doi: 10.3969/j.issn.05635020.2014.01.012
[25] BAU M.Rareearth element mobility during hydrothermal and metamorphic fluidrock interaction and the significance of the oxidation state of europium[J].Chemical Geology, 1991, 93(3–4): 219–230.doi: 10.1016/00092541(91)901158
[26] BAU M.Controls on the fractionation of isovalent trace elements in magmatic and aqueous systems: Evidence from Y/Ho, Zr/Hf and lanthanide tetrade effect[J].Contributions to Mineralogy and Petrology, 1996, 123(3): 323–333.doi: 10.1007/s004100050159
[27] BAU M, DULSKI P.Comparative study of yttrium and rareearth element behaviors in fluorinerich hydrothermal fluids[J].Contributions to Mineralogy and Petrology, 1995, 119(2–3): 213–223.doi: 10.1007/BF00307282
[28] SCHÖNENBERGER J, KÖHLER J, MARKL G.REE systematics of fluorides, calcite and siderite in peralkaline plutonic rocks from the Gardar Province, south Greenland[J].Chemical Geology, 2008, 247(1–2): 16–35.doi: 10.1016/j.chemgeo.2007.10.002
[29] 刘淑文,石顺,李荣西,等.扬子板块北缘马元铅锌矿床稀土元素地球化学研究[J].矿床地质, 2013, 32（5）:979988.doi:10.3969/j.issn.02587106.2013.05.010 LIU Shuwen, SHI Shun, LI Rongxi, et al.REE geochemistry of Mayuan PbZn deposit on northern margin of Yangtze Plate[J].Mineral Deposits, 2013, 32(5): 979–988.doi: 10.3969/j.issn.02587106.2013.05.010
[30] 英基丰,李胜荣,孙岱生,等.山东烟台金斗山金矿非金属矿物成因矿物学研究[J].地质地球化学, 2001, 29（4）:4955.doi:10.3969/j.issn.16729250.2001.04.008 YING Jifeng, LI Shengrong, SUN Daisheng, et al.Genetic mineralogy of nonmetallic minerals from Jindoushan gold deposit, Yantai, Shandong[J].Geology Geochemistry, 2001, 29(4): 49–55.doi: 10.3969/j.issn.16729250.2001.04.008
[31] 潘文庆,刘永福, DICKSON J A D,等.塔里木盆地下古生界碳酸盐岩热液岩溶的特征及地质模型[J].沉积学报, 2009, 27（5）:983994.PAN Wenqing, LIU Yongfu, DICKSON J A D, et al.The geological model of hydrothermal activity in outcrop and the characteristics of carbonate hydrothermal karst of Lower paleozoic in Tarim Basin[J].Acta Sedimentologica Sinica, 2009, 27(5): 983–994.
[32] 陈勇,葛云锦,周振柱,等.矿物润湿性对储层烃类包裹体形成制约的实验研究[J].地质学报, 2011, 85（4）:569575.CHEN Yong, GE Yunjin, ZHOU Zhenzhu, et al.Experimental study of the constraint of minerals wettability on hydrocarbonbearing inclusion forming in reservoir[J].Acta Geologica Sinica, 2011, 85(4): 569–575.
[33] 张鼐.含油气盆地流体包裹体分析技术及应用[M].北京：石油工业出版社, 2016.ZHANG Nai.Analysis techniques and applications of fluid inclusions in petroliferaceous basins[M].Beijing: Petroleum Industry Press, 2016.
[34] 刘德汉,肖贤明,田辉,等.含油气盆地中流体包裹体类型及其地质意义[J].石油与天然气地质, 2008, 29（4）:491-501.doi:10.3321/j.issn:02539985.2008.04.012 LIU Dehan, XIAO Xianming, TIAN Hui, et al.Fluid inclusion types and their geological significance in petroliferous basins[J].Oil and Gas Geology, 2008, 29(4): 491–501.doi: 10.3321/j.issn:02539985.2008.04.012
[35] BAU M, USUI A, PRACEJUS B, et al.Geochemistry of lowtemperature waterrock interaction: Evidence from natural waters, andesite, and ironoxyhydroxide precipitates at Nishikinuma ironspring, Hokkaido, Japan[J].Chemical Geology, 1998, 151(1): 293–307.doi: 10.1016/ S00092541(98)000862
[36] CHEN Daizhao, QING Hairuo, YAN Xin, et al.Hydrothermal venting and basin evolution (Devonian, south China): Constraints from rare earth element geochemistry of chert[J].Sedimentary Geology, 2006, 183(3–4): 203–216.doi: 10.1016/j.sedgeo.2005.09.020
[37] DERRY L A, JACOBSEN S B.The chemical evolution of Precambrian seawater: Evidence from REEs in banded iron formations[J].Geochimica et Cosmochimica Acta, 1990, 54(11): 2965–2977.doi: 10.1016/00167037(90)90114Z
[38] HECHT L, FREIBERGER R, GILG H A, et al.Rare earth element and isotope (C, O, Sr) characteristics of hydrothermal carbonates: Genetic implications for dolomitehosted talc mineralization at Göpfersgrün(Fichtelgebirge, Germany)[J].Chemical Geology, 1999, 155(1–2): 115–130.doi: 10.1016/S00092541(98)001442
[39] KÜPELI S.Trace and rareearth element behaviors during alteration and mineralization in the Attepe iron deposits (FekeAdana, southern Turkey)[J].Journal of Geochemical Exploration, 2010, 105(3): 51–74.doi: 10.1016/j.gexplo.2010.04.001
[40] MÖLLER P.Lanthanoids as a geochemical probe and problems in lanthanoid geochemistry distribution and behaviour of lanthanoids in nonmagmaticphases[J].Systematics and the Properties of the Lanthanides, 1983, 109: 561–616.
[41] 刘树文,付敬浩,孙国正,等.锦州迁安太古宙赞岐岩类片麻岩成因及其动力学意义[J].岩石学报, 2018, 34（4）:1083-1098.LIU Shuwen, FU Jinghao, SUN Guozheng, et al.Petrogenesis and geodynamics of Archean sanukitoid gneisses in the JinzhouQian'an area[J].Acta Petrologica Sinica, 2018, 34(4): 1083–1098.
[42] BAU M, MÖLLER P.Rare earth element fractionation in metamorphogenic hydrothermal calcite, magnesite and siderite[J].Mineralogy and Petrology, 1992, 45(3):231–246.doi:10.1007/BF01163114
[43] SMITH M P, HENDERSON P, CAMPBELL L S.Fractionation of the REE during hydrothermal processes: Constraints from the Bayan Obo FeREENb deposit, Inner Mongolia, China[J].Geochimica et Cosmochimica Acta: Journal of the Geochemical Society and the Meteoritical Society, 2000, 64(18): 3141–3160.doi: 10.1016/S00167037(00)004166
[44] BANNER J L, HANSON G N.Calculation of simultaneous isotopic and trace element variations during waterrock interaction with applications to carbonate diagenesis[J].Geochimica et Cosmochimica Acta, 1990, 54(11): 3123–3137.doi: 10.1016/00167037(90)901288
[45] BANNER J L, HANSON G N.Calculation of simultaneous isotopic and trace element variations during waterrock interaction with applications to carbonate diagenesis[J].Geochimica et Cosmochimica Acta, 1990, 54(11): 3123–3137.doi: 10.1016/00167037(90)901288