Diagenesis and Porosity Evolution of the Low-porosity and Low-permeability Sandstones:Evidence from the Lower Jurassic Sangonghe Formation in Moxizhuang Area,Central Junggar Basin

Expand
  • 1.Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China;
    2.Shanghai Branch,CNOOC,Shanghai 200120,China;
    3.Offshore Oil Production Plant,Shengli Oilfield Company,Sinopec,Dongying 257237,China

Received date: 2015-03-11

  Revised date: 2015-04-14

  Online published: 2015-12-10

Abstract

Diagenetic products and their cross-cutting relationships with hydrocarbons(oil inclusions and bitumen in conventional thin section) of the Lower Jurassic Sangonghe Formation,which contains low-porosity and low-permeability sandstones in Moxizhuang area,central Junggar Basin were examined with an integrated approach of thin-section petrography,scanning electron microscopy,cathodoluminescence microscopy and ultra-violet fluorescence microscopy.This study aims to establish the relative histories of diagenesis and hydrocarbon charging,estimate paleoporosity during the critical period for hydrocarbon charging,and discuss the dynamic coupling relationship between porosity evolution and hydrocarbon accumulation.The Sangonghe sandstones are feldspathic litharenites and litharenites having a low mineralogical maturity.Compaction,carbonate and clay cementation are major processes deteriorating reservoir quality.Chlorite coats have a less prominent role in preserving primary porosity and secondary dissolution porosity predominates in these sandstones.The three reservoir types identified in the Sangonghe sandstones show big variations in the pathways of diagenetic evolution.Sandstones,rich in ductile rock fragments were compacted strongly and became tight during the early diagenetic stage.Calcareous sands also became tight early by carbonate cementation.Sandstones,poor in ductile rock fragment compaction and cementation,experienced three phases of diagenesis and hydrocarbon charging with black bitumen without fluorescence,and bitumen with yellow and white blue fluorescence respectively.At the end of  Late Cretaceous(100-70Ma) when critical hydrocarbon accumulation occurred,it is difficult for the bulk of hydrocarbons to migrate into both tightly compacted sandstone and tightly carbonate cemented sandstones with an estimated paleoporosity value of 8%.However,sandstones,poor in ductile rock fragment compaction and cementation had still had the intermediate-high porosity and permeability.Early hydrocarbon entered these sandstones and possibly caused wettability reversal toward oil-wet from water-wet,favorable for late large-scale hydrocarbon accumulation(Since 62 Ma),though this was incapable of slowing or retarding porosity reduction in deep burial.This study suggests that sandstones in which intermediate-high porosity and permeability predominated early and early hydrocarbon charging occurred are present high-quality reservoirs.

Cite this article

HU Cai-zhi,ZHANG Li-kuan,LUO Xiao-rong,ZHAO Hong,YANG Bin,CAO Bin-feng,LEI Yu-hong,CHENG Ming,LI Chao . Diagenesis and Porosity Evolution of the Low-porosity and Low-permeability Sandstones:Evidence from the Lower Jurassic Sangonghe Formation in Moxizhuang Area,Central Junggar Basin[J]. Natural Gas Geoscience, 2015 , 26(12) : 2254 -2266 . DOI: 10.11764/j.issn.1672-1926.2015.12.2254

References

[1]
Sun Longde,Zou Caineng,Zhu Rukai,et al.Formation,distribution and potential of deep hydrocarbon resources in China[J].Petroleum Exploration and Production,2013,40(6):641-649.[孙龙德,邹才能,朱如凯,等.中国深层油气形成、分布与潜力分析[J].石油勘探与开发,2013,40(6):641-649.]
[2]Yu Wenquan,Li Li,Fang Tao,et al.Quantitative research for [HJ2.1mm]porosity evolution in low permeability deep gas reservoir of rift-subsidence basin[J].Natural Gas Geoscience,2010,21(3):397-405.[于雯泉,李丽,方涛,等.断陷盆地深层低渗透天然气储层孔隙演化定量研究[J].天然气地球科学,2010,21(3):397-405.]
[3]Luo Jinglan,Morad S,Yan Shike,et al.Reconstruction of the diagenesis of the fluvial-lacustrine-deltaic sandstones and its influence on the reservoir quality evolution:Evidence from Jurassic and Triassic sandstones,Yanchang Oilfield,Ordos Basin[J].Science in China :Series D,2001,31(12):1006-1016.[罗静兰,Morad S,阎世可,等.河流—湖相三角洲相砂岩成岩作用的重建及其对储层物性演化的影响——以延长油区侏罗系—上三叠统砂岩为例[J].中国科学:D辑,2001,31(12):1006-1016.]
[4]Li Shixiang,Hu Mingyi,Li Fuping.Diagenesis and porosity evolution of Upper Triassic Xujiahe Formation sandstone in western Sichuan Foreland Basin[J].Natural Gas Geoscience,2007,18(4):535-539.[李士祥,胡明毅,李浮萍.川西前陆盆地上三叠统须家河组砂岩成岩作用及孔隙演化[J].天然气地球科学,2007,18(4):535-539.]
[5]Ning Ning,Chen Mengjin,Liu Rui′e,et al.Upper Paleozoic quartz-sandstone reservoir diagenesis and pore evolvement,eastern Ordos Basin[J].Natural Gas Geoscience,2007,18(4):535-539.[宁宁,陈孟晋,刘锐娥,等.鄂尔多斯盆地东部上古生界石英砂岩储层成岩及孔隙演化[J].天然气地球科学,2007,18(3):334-338.]
[6]Luo Wenjun,Peng Jun,Du Jing′an,et al.Diagenesis and porosity evolution of tight sand reservoirs in the 2nd member of Xujiahe Formation,western Sichuan Depression:An example from Dayi region[J].Oil & Gas Geology,2012,33(2):287-295.[罗文军,彭军,杜敬安,等.川西坳陷须家河组二段致密砂岩储层成岩作用与孔隙演化——以大邑地区为例[J].石油与天然气地质,2012,33(2):287-295.]
[7]Zou Huayao,Hao Fang,Zhang Baiqiao,et al.History of hydrocarbon filling and remigration in hinterland of the Junggar Basin[J].Chinese Journal of Geology,2005,40(4):499-509.[邹华耀,郝芳,张柏桥,等.准噶尔盆地腹部油气充注与再次运移研究[J].地质科学,2005,40(4):499-509.]
[8]Taylor T R,Giles M R,Hathon L A,et al.Sandstone diagenesis and reservoir quality prediction:Models,myths,and reality[J].AAPG Bulletin,2002,94(8):1093-1132.
[9]Liu Shugen,Ma Yongsheng,Huang Wenming,et al.Densification process of Upper Dengying Formation,Sichuan Basin[J].Natural Gas Geoscience,2007,18(4):485-496.[刘树根,马永生,黄文明,等.四川盆地上震旦统灯影组储集层致密化过程研究[J].天然气地球科学,2007,18(4):485-496.]
[10]Liu Chuanpeng.Reservoir microscopic characteristics and effective reservoir control factors of J1s2in Moxizhuang area,Junggar Basin[J].Geology in China,2013,40(5):1515-1522.[刘传鹏.准噶尔盆地莫西庄地区三工河组二段储层微观特征及有效储层控制因素[J].中国地质,2013,40(5):1515-1522.]
[11]Li Zhiming,Qin Jianzhong,Liao Zongting,et al.Reservoirs features of the second member of Jurassic Sangonghe Formation in Moxizhuang area of Junggar Basin,NW China[J].Journal of Jilin University:Earth Science Edition,2006,36(5):799-804.[李志明,秦建中,廖宗廷,等.准噶尔盆地莫西庄地区侏罗系三工河组二段储层特征[J].吉林大学学报:地球科学版,2006,36(5):799-804.]
[12]Kuang Jun,Yao Genshun,Zhu Guohua,et al.The origin of favorable sandstone reservoirs of Sangonghe Formation,Lower Jurassic in central Jungar Basin[J].Petroleum Exploration and Development,2001,28(6):34-40.[况军,姚根顺,朱国华,等.准噶尔盆地腹部地区侏罗系三工河组相对优质储集层的成因[J].石油勘探与开发,2001,28(6):34-40.]
[13]Meng Xianlong.Distribution regularizes of good reservoirs in the central area of Junggar Basin from the aspect of diagenetic evolution[J].West China Petroleum Geosciences,2005,1(1):51-54.[孟闲龙.从成岩演化探讨准噶尔盆地腹部区块优质储层的分布规律[J].中国西部油气地质,2005,1(1):51-54.]
[14]Wang Furong,He Sheng,Hong Taiyuan.Dominant factors affecting the reservoir properties of deeply buried bed in the center of Junggar Basin[J].Xinjiang Geology,2006,24(4):423-428.[王芙蓉,何生,洪太元.准噶尔盆地腹部地区深埋储层物性特征及影响因素[J].新疆地质,2006,24(4):423-428.]
[15]Wang Furong,He Sheng,He Zhiliang,et al.The reservoir characteristic of deeply-buried sandstone in the center of Junggar Basin[J].Petroleum Geology & Experiment,2010,32(6):547-552.[王芙蓉,何生,何治亮,等.准噶尔盆地腹部地区深层砂岩储层孔隙特征研究[J].石油实验地质,2010,32(6):547-552.]
[16]Jin Zhenkui,Su Kui,Su Nina.Origin of Jurassic deep burial high-quality reservoirs in the central Junggar Basin[J].Acta Petrolei Sinica,2011,32(1):25-31.[金振奎,苏奎,苏妮娜.准噶尔盆地腹部侏罗系深部优质储层成因[J].石油学报,2011,32(1):25-31.]
[17]Zhang Fushun,Zhu Yunhui,Wang Furong.Forming Mechanism of secondary pores in deep buried reservoirs of Junggar Basin[J].Acta Sedimentologica Sinica,2008,26(3):469-478.[张福顺,朱允辉,王芙蓉.准噶尔盆地腹部深埋储层次生孔隙成因机理研究[J].沉积学报,2008,26(3):469-478.]
[18]He Sheng,Yang Zhi,He Zhiliang,et al.Mechanism of carbonate cementation and secondary dissolution porosity formation in deep-burial sandstones near the top over pressured surface in central part of Junggar Basin[J].Earth Science:Journal of China University of Geosciences,2009,34(5):759-768.[何生,杨智,何治亮,等.准噶尔盆地腹部超压顶面附近深层砂岩碳酸盐胶结作用和次生溶蚀孔隙形成机理[J].地球科学:中国地质大学学报,2009,34(5):759-768.]
[19]Hu Haiyan,Wang Guojian.Development mechanism of relative high-quality oil reservoir in the deeply buried sandstone in the Junggar Basin:Leaching and corrosion[J].Carsologica Sinica,2009,28(1):35-41.[胡海燕,王国建.准噶尔盆地深层相对优质储层发育机理——淋滤与溶蚀作用[J].中国岩溶,2009,28(1):35-41.]
[20]Bao Zhidong,Liu Ling,Zhang Dongling,et al.Depositional system framework of the Jurassic in Junggar Basin[J].Acta Sedimentologica Sinica,2005,23(2):194-202.[鲍志东,刘凌,张冬玲,等.准噶尔盆地侏罗系沉积体系纲要[J].沉积学报,2005,23(2):194-202.]
[21]Zhang Yuejing.Provenance analysis of Jurassic Sangonghe Formation in hinterland of Junggar Basin[J].Xinjiang Petroleum Geology,2012,33(5):540-542.[张曰静.准噶尔盆地腹部下侏罗统三工河组物源体系分析[J].新疆石油地质,2012,33(5):540-542.]
[22]Zhang Dongling,Bao Zhidong,Wang Jianwei,et al.Sedimentary facies and reservoir characters of the member 2 of Sangonghe Formation of Lower Jurassic in central Junggar Basin[J].Journal of Palaeogeography,2005,7(2):185-196.[张冬玲,鲍志东,王建伟,等.准噶尔盆地中部下侏罗统三工河组二段沉积相及储层特征[J].古地理学报,2005,7(2):185-196.]
[23]Bi Yanbin,Gao Shanlin,Zhu Yunhui,et al.Hydrocarbon accumulation patterns of Moxizhuang Oilfield,the Junggar Basin[J].Oil & Gas Geology,2011,32(3):318-326.[毕研斌,高山林,朱允辉,等.准噶尔盆地莫西庄油田成藏模式[J].石油与天然气地质,2011,32(3):318-326.]
[24]Houseknecht D W.Assessing the relative importance of compaction processes and Cementation to reduction of porosity in sandstones[J].AAPG Bulletin,1987,71(6):633-642.
[25]Ehrenberg S N.Assessing the relative importance of compaction processes and cementation to reduction of porosity in sandstones:Compaction and porosity evolution of Paliocene sandstones,Ventura Basin,California:Discussion[J].AAPG Bulletin,1989,73(10):1274-1276.
[26]Huang Sijing,Xie Lianwen,Zhang Meng,et al.Formation mechanism of authigenic chlorite and relation to preservation of porosity in non-marine Triassic reservoir sandstones,Ordos Basin and Sichuan Basin,China[J].Journal of Chengdu University of Technology:Science & Technology Edition,2004,31(3):273-281.[黄思静,谢连文,张萌,等.中国三叠系陆相砂岩中自生绿泥石的形成机制及其与储层孔隙保存的关系[J].成都理工大学学报:自然科学版,2004,31(3):273-281.]
[27][KG*5/6]Bjrlykke K,Jahren J.Open or closed geochemical systems during diagenesis in sedimentary basins:Constraints on mass transfer during diagenesis and the prediction of porosity in sandstone and carbonate reservoirs[J].AAPG Bulletin,2012,96(12):2193-2214.
[28]Jia Wanglu,Peng Ping′an.Asphaltene structure in reservoir affected by discharge of secondary condensate oil:Laboratory simulation[J].Petroleum Exploration and Development,2003,30(6):112-116.[贾望鲁,彭平安.凝析油充注对油藏沥青质分子结构的影响:实验模拟[J].石油勘探与开发,2003,30(6):112-116.]
[29]Luo Xiaorong,Zhang Liuping,Yang Hua,et al.Oil accumulation process in the low permeability Chang 81 member of Longdong area,the Ordos Basin[J].Oil & Gas Geology,2010,31(6):770-778.[罗晓容,张刘平,杨华,等.鄂尔多斯盆地陇东地区长81段低渗油藏成藏过程[J].石油与天然气地质,2010,31(6):770-778.]
[30]Worden R H,Oxtoby N H,Smalley P C.Can oil emplacement prevent quartz cementation in sandstones[J].Petroleum Geoscience,1998,4(2):129-137.
[31]Qiu Nansheng,Yang Haibo,Wang Xulong.Tectono-thermal evolution in the Junggar Basin[J].Chinese Journal of Geology,2002,37(4):423-429.[邱楠生,杨海波,王绪龙.准噶尔盆地构造—热演化特征[J].地质科学,2002,37(4):423-429.]
[32]Petroleum and natural gas industry standards of People′s Republic of China.SY/T 5477-2003 Diagenesis stage division of clastic sandstones[S].Beijing:Petroleum Industry Publishing House,2003.[中华人民共和国石油天然气行业标准.SY/T 5477-2003碎屑岩成岩阶段划分[S].北京:石油工业出版社,2003.]
[33]Pan Changchun,Fu Jiamo,Sheng Guoying,et al.Hydrocarbon source rock of central reservoirs in Junggar Basin[J].Acta Petrolei Sinica,1999,20(5):27-32.[潘长春,傅家谟,盛国英,等.准噶尔盆地腹部油气藏油源的确定及其意义[J].石油学报,1999,20(5):27-32.]
[34]Zhang Zhihuan,Qin Liming,Li Wei,et al.The distribution of oil source and the transformation of hydrocarbon kitchens in oil-bearing structural belts on northern and southern sides of the Chemo Paleo-uplift within central Jungar Basin[J].Geology in China,2009,36(4):826-836.[张枝焕,秦黎明,李伟,等.准噶尔盆地腹部车莫古隆起南北两侧含油构造油源及烃源灶转移[J].中国地质,2009,36(4):826-836.]
[35]Zhao Hong,Luo Xiaorong,Zhang Likuan,et al.A sign to the multi-phases hydrocarbon charge and adjustment:Fluid inclusion study from the Sangonghe Formation in the No.1 block,the middle Junggar Basin[J].Natural Gas Geoscience,2014,25(12):1900-1910.[赵洪,罗晓容,张立宽,等.准噶尔盆地中部1区块三工河组流体包裹体特征及对油气多期充注—调整过程的指示[J].天然气地球科学,2014,25(12):1900-1910.]
[36]Athy L F.Density,porosity,and compaction of sedimentary rocks[J].AAPG Bulletin,1930,14(1):1-21.
[37]Chen Zhankun,Wu Yasheng,Luo Xiaorong,et al.Reconstruction of Paleo-pasage system of Chang 8 Formation in Longdong area,Ordos Basin[J].Acta Geologica Sinica,2006,80(5):718-724.[陈占坤,吴亚生,罗晓容,等.鄂尔多斯盆地陇东地区长8段古输导格架恢复[J].地质学报,2006,80(5):718-724.]
[38]Liu Zhen,Shao Xinjun,Jin Bo,et al.Co-effect of depth and burial time on the evolution of porosity for classic rocks during the stage of compaction[J].Geoscience,2007,21(1):125-132.[刘震,邵新军,金博,等.压实过程中埋深和时间对碎屑岩孔隙度演化的共同影响[J].现代地质,2007,21(1):125-132.]

Outlines

/