低熟湖相页岩内运移固体有机质和有机质孔特征——以鄂尔多斯盆地东南部延长组长7油层组页岩为例

doi:10.7623/syxb201802002

石油学报 ›› 2018, Vol. 39 ›› Issue (2): 141-151.DOI: 10.7623/syxb201802002

低熟湖相页岩内运移固体有机质和有机质孔特征——以鄂尔多斯盆地东南部延长组长7油层组页岩为例

王香增^1,2, 张丽霞^1,2, 雷裕红^3,4, 俞雨溪^3,4, 姜呈馥^1,2, 罗晓容^3,4, 高潮^1,2, 尹锦涛^1,2, 程明^3,4

1. 陕西延长石油(集团)有限责任公司陕西西安 710075;
2. 陕西省陆相页岩气成藏与开发重点实验室陕西西安 710075;
3. 中国科学院地质与地球物理研究所北京 100029;
4. 中国科学院油气资源研究重点实验室北京 100029

收稿日期:2017-06-28 修回日期:2017-11-18 出版日期:2018-02-25 发布日期:2018-03-09
通讯作者: 雷裕红,男,1978年12月生,2001年获中国地质大学(武汉)学士学位,2010年获中国科学院地质与地球物理研究所博士学位,现为中国科学院地质与地球物理研究所高级工程师,主要从事油气运聚成藏动力学和非常规油气的研究。Email:leiyh@mail.iggcas.ac.cn
作者简介:王香增,男,1968年12月生,1989年获西安石油学院学士学位,1998年获中国地质大学(北京)博士学位,现为陕西延长石油(集团)有限责任公司教授级高级工程师,主要从事特低渗油气开采工程技术研究。Email:sxycpcwxz@126.com
基金资助:
国家重大科技专项（2017ZX05008-004，2017ZX05039）和陕西省科技统筹创新工程项目（2012KTZB03-03-01）资助。

Characteristics of migrated solid organic matters and organic pores in low maturity lacustrine shale: a case study of the shale in Chang 7 oil-bearing formation of Yanchang Formation,southeastern Ordos Basin

Wang Xiangzeng^1,2, Zhang Lixia^1,2, Lei Yuhong^3,4, Yu Yuxi^3,4, Jiang Chengfu^1,2, Luo Xiaorong^3,4, Gao Chao^1,2, Yin Jintao^1,2, Cheng Ming^3,4

1. Shaanxi Yanchang Petroleum(Group) Co., Ltd., Shaanxi Xi'an 710075, China;
2. Shaanxi Key Laboratory of Lacustrine Shale Gas Accumulation and Exploitation, Shaanxi Xi'an 710075, China;
3. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;
4. Key Laboratory of Petroleum Resources Research, Chinese Academy of Sciences, Beijing 100029, China

Received:2017-06-28 Revised:2017-11-18 Online:2018-02-25 Published:2018-03-09

摘要/Abstract

摘要： 富有机质页岩中的有机质孔是页岩储层中重要的孔隙类型，有机质孔的数量、孔径大小和分布特征对页岩油气的吸附和储集能力、储层渗透性、页岩油气赋存状态和含量均具有重要的影响。利用氩离子抛光和场发射扫描电镜分析等技术分析了鄂尔多斯盆地东南部延长组长7油层组页岩中的固体有机质和不同有机质中有机质孔的发育特征。结果表明，延长组长7油层组页岩的成熟度较低（R_o为0.62%~0.85%），固体有机质中的有机质孔比较发育，有机质孔的分布和发育程度具有明显的非均一性。运移固体有机质常充填于粒间孔、黄铁矿集合体粒内孔、溶蚀孔中，运移固体有机质中有机质孔较发育，孔径相对较大，孔隙数量多，而近似平行层理定向富集的干酪根中有机质孔数量相对较少或不发育。有机质孔的孔径主要介于6~60 nm、占总数的84.9%，多数有机质孔的孔径小于30 nm，孔径大于100 nm的孔隙仅占总数的6.1%，最大孔径可达1 μm以上，不同样品的有机质孔孔径分布特征存在一定的差异。固体有机质的类型及其与无机矿物间的关系对页岩中有机质孔的发育程度具有重要的影响，运移固体有机质含量越高，有机质孔越发育。

关键词: 页岩, 运移有机质, 有机质孔, 长7油层组, 鄂尔多斯盆地

Abstract: Organic pore in organic-rich shale is an important pore type in shale reservoir. The quantity, pore size and distribution characteristics of organic pore have important effects on the adsorption and reserving capacity, reservoir permeability, the occurrence and content of shale hydrocarbons. The solid organic matter in the shale of Chang 7 oil-bearing formation, Yanchang Formation, the southeastern Ordos Basin was analyzed by argon ion polishing and field emission scanning electron microscopy. The development characteristics of organic pore in different organic matters were discussed. The results show that despite the shale maturity of Chang 7 oil-bearing formation, Yanchang Formation is relatively low (R_o=0.62% -0.85%), the organic pores in solid organic matter are relatively developed. However, the distribution and development degree of organic pores have obvious heterogeneity. The migrated solid organic matters often fill the intergranular pores, iron pyrite aggregation intra-granular pores and dissolution pores, of which the organic pores are relatively developed in large quantity with relatively large size, while the organic pores of the kerogen directionally enriched in the approximately parallel bedding are less or undeveloped. The pore sizes of organic pore are mainly in the range of 6-60 nm, accounting for 84.9% of the total. The pore sizes of most organic pores are less than 30 nm, and the pores with the size larger than 100 nm is only 6.1% of the total. The pore size distribution characteristics of organic matter for different samples varies with the maximum pore size above 1 μm. The relation between the types of solid organic matters and inorganic minerals has an important influence on the development degree of organic pores in shale. The higher the content of migrated solid organic matter is, the more developed the organic pores will be.

Key words: shale, migrated solid organic matter, organic pores, Chang 7 oil-bearing formation, Ordos Basin

中图分类号:

TE122.2

王香增, 张丽霞, 雷裕红, 俞雨溪, 姜呈馥, 罗晓容, 高潮, 尹锦涛, 程明. 低熟湖相页岩内运移固体有机质和有机质孔特征——以鄂尔多斯盆地东南部延长组长7油层组页岩为例[J]. 石油学报, 2018, 39(2): 141-151.

Wang Xiangzeng, Zhang Lixia, Lei Yuhong, Yu Yuxi, Jiang Chengfu, Luo Xiaorong, Gao Chao, Yin Jintao, Cheng Ming. Characteristics of migrated solid organic matters and organic pores in low maturity lacustrine shale: a case study of the shale in Chang 7 oil-bearing formation of Yanchang Formation,southeastern Ordos Basin[J]. Acta Petrolei Sinica, 2018, 39(2): 141-151.

参考文献

[1] LOUCKS R G,REED R M,RUPPEL S C,et al.Morphology,genesis,and distribution of nanometer-scale pores in siliceous mudstones of the Mississippian Barnett shale[J].Journal of Sedimentary Research,2009,79(12):848-861.
[2] BERNARD S,HORSFIELD B,SCHULZ H M,et al.Geochemical evolution of organic-rich shales with increasing maturity:a STXM and TEM study of the Posidonia shale (Lower Toarcian,northern Germany)[J].Marine and Petroleum Geology,2012,31(1):70-89.
[3] ROSS D J K,BUSTIN R M.The importance of shale composition and pore structure upon gas storage potential of shale gas reservoirs[J].Marine and Petroleum Geology,2009,26(6):916-927.
[4] SLATT R M,O'BRIEN N R.Pore types in the Barnett and Woodford gas shales:contribution to understanding gas storage and migration pathways in fine-grained rocks[J].AAPG Bulletin,2011,95(12):2017-2030.
[5] CURTIS M E,AMBROSE R J,SONDERGELD C H.Structural characterization of gas shales on the micro-and nano-scales[R].SPE 137693,2010.
[6] CURTIS M E,SONDERGELD C H,AMBROSE R J,et al.Microstructural investigation of gas shales in two and three dimensions using nanometer-scale resolution imaging[J].AAPG Bulletin,2012,96(4):665-677.
[7] JARVIE D M.Shale resource systems for oil and gas:part 2-shale-oil resource systems[M]//BREYER J A.Shale Reservoirs:Giant Resources for the 21st Century.New York:AAPG,2012:89-119.
[8] LöHR S C,BARUCH E T,HALL P A,et al.Is organic pore development in gas shales influenced by the primary porosity and structure of thermally immature organic matter?[J].Organic Geochemistry,2015,87:119-132.
[9] CURTIS M E,CARDOTT B J,SONDERGELD C H,et al.Development of organic porosity in the Woodford Shale with increasing thermal maturity[J].International Journal of Coal Geology,2012,103:26-31.
[10] VALENZA Ⅱ J J,DRENZEK N,MARQUES F,et al.Geochemical controls on shale microstructure[J].Geology,2013,41(5):611-614.
[11] MILLIKEN K L,RUDNICKI M,AWWILLER D N,et al.Organic matter-hosted pore system,Marcellus Formation (Devonian),Pennsylvania[J].AAPG Bulletin,2013,97(2):177-200.
[12] MILLIKEN K L,ESCH W L,REED R M,et al.Grain assemblages and strong diagenetic overprinting in siliceous mudrocks,Barnett shale (Mississippian),Fort Worth Basin,Texas[J].AAPG Bulletin,2012,96(8):1553-1578.
[13] SCHIEBER J.SEM observations on ion-milled samples of Devonian Black shales from Indiana and New York:the petrographic context of multiple pore types[M]//CAMP W K,DIAZ E,WAWAK B.Electron Microscopy of Shale Hydrocarbon Reservoirs.Tulsa,OK:American Association of Petroleum Geologists,2013:153-171.
[14] MODICA C J,LAPIERRE S G.Estimation of kerogen porosity in source rocks as a function of thermal transformation:example from the Mowry shale in the Powder River Basin of Wyoming[J].AAPG Bulletin,2012,96(1):87-108.
[15] LOUCKS R G,REED R M,RUPPEL S C,et al.Spectrum of pore types and networks in mudrocks and a descriptive classification for matrix-related mudrock pores[J].AAPG Bulletin,2012,96(6):1071-1098.
[16] LOUCKS R G,REED R M.Scanning-electron-microscope petrographic evidence for distinguishing organic-matter pores associated with depositional organic matter versus migrated organic matter in mudrocks[J].Gulf Coast Association of Geological Societies Journal,2014,3:51-60.
[17] CARDOTT B J,LANDIS C R,CURTIS M E.Post-oil solid bitumen network in the Woodford shale,USA-a potential primary migration pathway[J].International Journal of Coal Geology,2015,139:106-113.
[18] BERNARD B,WIRTH R,SCHREIBER A,et al.Formation of nanoporous pyrobitumen residues during maturation of the Barnett shale (Fort Worth Basin)[J].International Journal of Coal Geology,2012,103:3-11.
[19] 马素萍,漆亚玲,张晓宝,等.西峰油田延长组烃源岩生烃潜力评价[J].石油勘探与开发,2005,32(3):51-54.
MA Suping,QI Yaling,ZHANG Xiaobao,et al.Geochemical characteristics and hydrocarbon generation potential of the source rocks in Yanchang Formation,Xifeng oilfield,Ordos Basin,NW China[J].Petroleum Exploration and Development,2005,32(3):51-54.
[20] 张文正,杨华,李剑锋,等.论鄂尔多斯盆地长7段优质油源岩在低渗透油气成藏富集中的主导作用:强生排烃特征及机理分析[J].石油勘探与开发,2006,33(3):289-293.
ZHANG Wenzheng,YANG Hua,LI Jianfeng,et al.Leading effect of high-class source rock of Chang 7 in Ordos Basin on enrichment of low permeability oil-gas accumulation:hydrocarbon generation and expulsion mechanism[J].Petroleum Exploration and Development,2006,33(3):289-293.
[21] 杨华,李士祥,刘显阳.鄂尔多斯盆地致密油、页岩油特征及资源潜力[J].石油学报,2013,34(1):1-11.
YANG Hua,LI Shixiang,LIU Xianyang.Characteristics and resource prospects of tight oil and shale oil in Ordos Basin[J].Acta Petrolei Sinica,2013,34(1):1-11.
[22] 郭秋麟,武娜,陈宁生,等.鄂尔多斯盆地延长组第7油层组致密油资源评价[J].石油学报,2017,38(6):658-665.
GUO Qiulin,WU Na,CHEN Ningsheng,et al.An assessment of tight oil resource in 7th oil reservoirs of Yanchang Formation,Ordos Basin[J].Acta Petrolei Sinica,2017,38(6):658-665.
[23] LEI Y H,LUO X R,WANG X Z,et al.Characteristics of silty laminae in Zhangjiatan shale of southeastern Ordos Basin,China:implications for shale gas formation[J].AAPG Bulletin,2015,99(4):661-687.
[24] 邹才能,董大忠,杨桦,等.中国页岩气形成条件及勘探实践[J].天然气工业,2011,31(12):26-39.
ZOU Caineng,DONG Dazhong,YANG Hua,et al.Conditions of shale gas accumulation and exploration practices in China[J].Natural Gas Industry,2011,31(12):26-39.
[25] 杨超,张金川,唐玄.鄂尔多斯盆地陆相页岩微观孔隙类型及对页岩气储渗的影响[J].地学前缘,2013,20(4):240-250.
YANG Chao,ZHANG Jinchuan,TANG Xuan.Microscopic pore types and its impact on the storage and permeability of continental shale gas,Ordos Basin[J].Earth Science Frontiers,2013,20(4):240-250.
[26] 王香增.延长石油集团非常规天然气勘探开发进展[J].石油学报,2016,37(1):137-144.
WANG Xiangzeng.Advances in unconventional gas exploration and development of Yanchang Petroleum Group[J].Acta Petrolei Sinica,2016,37(1):137-144.
[27] BARUCH E T,KENNEDY M J,LöHR S C,et al.Feldspar dissolution-enhanced porosity in Paleoproterozoic shale reservoir facies from the Barney Creek Formation (McArthur Basin,Australia)[J].AAPG Bulletin,2015,99(9):1745-1770.
[28] 马中良,郑伦举,徐旭辉,等.富有机质页岩有机孔隙形成与演化的热模拟实验[J].石油学报,2017,38(1):23-30.
MA Zhongliang,ZHENG Lunjun,XU Xuhui,et al.Thermal simulation experiment on the formation and evolution of organic pores in organic-rich shale[J].Acta Petrolei Sinica,2017,38(1):23-30.
[29] 曾维特,张金川,丁文龙,等.延长组陆相页岩含气量及其主控因素——以鄂尔多斯盆地柳坪171井为例[J].天然气地球科学,2014,25(2):291-301.
ZENG Weite,ZHANG Jinchuan,DING Wenlong,et al.The gas content of continental Yanchang shale and its main controlling factors:a case study of Liuping-171 well in Ordos Basin[J].Natural Gas Geoscience,2014,25(2):291-301.
[30] 雷裕红,王晖,罗晓容,等.鄂尔多斯盆地张家滩页岩液态烃特征及对页岩气量估算的影响[J].石油学报,2016,37(8):952-961.
LEI Yuhong,WANG Hui,LUO Xiaorong,et al.The characteristics of liquid hydrocarbon in Zhangjiatan shale,Ordos Basin and its effects on the estimation of shale gas amount[J].Acta Petrolei Sinica,2016,37(8):952-961.
[31] 寇雨,周文,赵毅楠,等.鄂尔多斯盆地长7油层组页岩吸附特征与类型及吸附气量影响因素[J].岩性油气藏,2016,28(6):52-57.
KOU Yu,ZHOU Wen,ZHAO Yi'nan,et al.Adsorption characteristics,types and influencing factors of Chang 7 shale of Triassic Yanchang Formation in Ordos Basin[J].Lithologic Reservoirs,2016,28(6):52-57.
[32] HAO Fang,ZOU Huayao,LU Yongchao.Mechanisms of shale gas storage:implications for shale gas exploration in China[J].AAPG Bulletin,2013,97(8):1325-1346.
[33] 何自新.鄂尔多斯盆地演化与油气[M].北京:石油工业出版社,2003:20-245.
HE Zixin.Evolution and petroleum of Ordos Basin[M].Beijing:Petroleum Industry Press,2003:20-245.
[34] 孔庆芬.鄂尔多斯盆地延长组烃源岩有机显微组分特征[J].新疆石油地质,2007,28(2):163-166.
KONG Qingfen.The organic maceral characteristic of Yanchang source rock in Ordos Basin[J].Xinjiang Petroleum Geology,2007,28(2):163-166.
[35] GUO Huijuan,JIA Wanglu,PENG Ping'an,et al.The composition and its impact on the methane sorption of lacustrine shales from the Upper Triassic Yanchang Formation,Ordos Basin,China[J].Marine and Petroleum Geology,2014,57:509-520.
[36] 田永强.鄂尔多斯盆地三叠系延长组长7沉积特征研究[D].西安:西北大学,2011:48.
TIAN Yongqiang.Depositional system of Chang 7 oil formation of the Triassic Yanchang Formation in Ordos Basin[D].Xi'an:Northwest University,2011:48.
[37] TISSOT B P,WELTE D H.Petroleum formation and occurrence:a new approach to oil and gas exploration[M].2nd ed.Berlin,Heidelberg:Springer-Verlag, 1984:699.
[38] CURIALE J A.Origin of solid bitumens,with emphasis on biological marker results[J].Organic Geochemistry,1986,10(1/3):559-580.
[39] LEWAN M D.Effects of thermal maturation on stable organic carbon isotopes as determined by hydrous pyrolysis of Woodford shale[J].Geochimica et Cosmochimica Acta,1983,47(8):1471-1479.
[40] TANNENBAUM E,KAPLAN I R.Role of minerals in the thermal alteration of organic matter-I:generation of gases and condensates under dry condition[J].Geochimica et Cosmochimica Acta,1985,49(12):2589-2604.
[41] TANNENBAUM E,HUIZINGA B J,KAPLAN I R.Role of minerals in thermal alteration of organic matter-Ⅱ:a material balance[J].AAPG Bulletin,1986,70(9):1156-1165.

低熟湖相页岩内运移固体有机质和有机质孔特征——以鄂尔多斯盆地东南部延长组长7油层组页岩为例

Characteristics of migrated solid organic matters and organic pores in low maturity lacustrine shale: a case study of the shale in Chang 7 oil-bearing formation of Yanchang Formation,southeastern Ordos Basin

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