鄂尔多斯盆地长7段泥页岩系孔隙特征及其演化规律Pore Characteristics and Evolution of the Chang 7 Mud Shale in Ordos Basin
李向军;罗静兰;罗晓容;王香增;姜呈馥;雷裕红;高潮;尹景涛;
摘要(Abstract):
鄂尔多斯盆地延长组长7段泥页岩既是盆内优质烃源岩,又是有利的页岩气储层。页岩气储层孔隙特征和演化规律的研究,能够为分析页岩气储层储集性能、探讨页岩气赋存成藏过程和机理、预测页岩气"甜点区"提供指导。在总结国内外学者研究成果的基础上,采用氩离子抛光-场发射扫描电镜观察、高压压汞、气体吸附等分析测试方法,优化了前人对于页岩气储层孔隙的划分方案,将长7段泥页岩孔隙分为基质孔隙和裂缝孔隙两大类,进一步将基质孔隙分为粒间孔、粒内孔、晶间孔和有机质孔隙4个亚类;定性和定量地分析了研究区长7段泥页岩孔隙特征,孔隙形态复杂,以狭缝形和楔形为主,孔径分布范围宽泛(0.1~10 000nm),孔隙度为0.5%~6.6%,中孔(2~50nm)和宏孔(>50nm)是孔隙度的主要贡献者;提出泥页岩岩相类型、成岩作用、生烃作用和构造作用是影响泥页岩孔隙发育及演化的4个主控因素,建立了鄂尔多斯盆地长7段泥页岩孔隙演化模式。
关键词(KeyWords): 孔隙特征;孔隙演化;泥页岩;长7段;鄂尔多斯盆地
基金项目(Foundation): 国家自然科学基金项目(41272138);; 国家科技重大专项(2011ZX05008-004-061)
作者(Author): 李向军;罗静兰;罗晓容;王香增;姜呈馥;雷裕红;高潮;尹景涛;
Email:
DOI: 10.19509/j.cnki.dzkq.2017.0403
参考文献(References):
- [1]朱如凯,白斌,崔景伟,等.非常规油气致密储集层微观结构研究进展[J].古地理学报,2013,75(5):615-623.
- [2]邹才能.非常规油气地质学[M].北京:地质出版社,2014.
- [3]邹才能,朱如凯,白斌,等.中国油气储层中纳米孔首次发现及其科学价值[J].岩石学报,2011,27(6):1857-1864.
- [4]吴松涛,邹才能,朱如凯,等.鄂尔多斯盆地上三叠统长7段泥页岩储集性能[J].地球科学:中国地质大学学报,2015,40(11):1810-1823.
- [5]蒲泊伶,董大忠,牛嘉玉,等.页岩气储层研究新进展[J].地质科技情报,2014,33(2):98-104.
- [6]魏威,王飞宇.页岩油气资源体系成藏控制因素与储层特征[J].地质科技情报,2014,33(1):150-156.
- [7]杨俊杰.鄂尔多斯盆地构造演化与油气分布规律[M].北京:石油工业出版社,2002.
- [8]李文厚,庞军刚,曹红霞,等.鄂尔多斯盆地晚三叠世延长期沉积体系及岩相古地理演化[J].西北大学学报:自然科学版,2009,39(3):501-506.
- [9]姜呈馥,王香增,张丽霞,等.鄂尔多斯盆地东南部延长组长7段陆相页岩气地质特征及勘探潜力评价[J].中国地质,2013,40(6):1880-1888.
- [10]张烨毓,周文,唐瑜,等.鄂尔多斯盆地三叠系长7油层组页岩储层特征[J].成都理工大学学报:自然科学版,2013,40(6):671-676.
- [11]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.
- [12]Chalmers G,Bustin R,Powers I.A pore by any other name would be as small:The importance of meso-and microporosity in shale gas capacity[M].Denver:AAPG Annual Convention and Exhibition,2009:7-10.
- [13]焦堃,姚素平,吴浩,等.页岩气储层孔隙系统表征方法研究进展[J].高校地质学报,2014,20(1):151-161.
- [14]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.
- [15]Schieber J.Common themes in the formation and preservation of intrinsic porosity in shales and mudstones:Illustrated with examples across the phanerozoic[M].[S.l.]:Scociety of Petroleum Engineers,2010.
- [16]郭旭升,李宇平,刘若冰,等.四川盆地焦石坝地区龙马溪组页岩微观孔隙结构特征及其控制因素[J].天然气工业,2014,34(6):9-16.
- [17]何建华,丁文龙,付景龙,等.页岩微观孔隙成因类型研究[J].岩性油气藏,2014,26(5):30-35.
- [18]崔景伟,邹才能,朱如凯,等.页岩孔隙研究新进展[J].地球科学进展,2012,27(12):1319-1325.
- [19]吴松涛,朱如凯,崔京钢,等.鄂尔多斯盆地长7湖相泥页岩孔隙演化特征[J].石油勘探与开发,2015,42(2):167-176.
- [20]田华,张水昌,柳少波,等.压汞法和气体吸附法研究富有机质页岩孔隙特征[J].石油学报,2012,33(3):419-427.
- [21]杨峰,宁正福,胡昌蓬,等.页岩储层微观孔隙结构特征[J].石油学报,2013,34(2):301-311.
- [22]Clarkson C R,Solano N,Bustin R M,et al.Pore structure characterization of North American shale gas reservoirs using USANS/SANS,gas adsorption,and mercury intrusion[J].Fuel,2013,103(1):606-616.
- [23]俞雨溪,罗晓容,雷裕红,等.陆相页岩孔隙结构特征研究:以鄂尔多斯盆地延长组页岩为例[J].天然气地球科学,2016,27(4):716-726.
- [24]焦堃.煤和泥页岩纳米孔隙的成因、演化机制与定量表征[D].南京:南京大学,2015.
- [25]Sing K S W.Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity(Provisional)[J].Pure and Applied Chemistry,2014,54(11):2201-2218.
- [26]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.
- [27]Curtis M E,Ambrose R J,Sondergeld C H,et al.Investigation of the relationship between organic porosity and thermal maturity in the marcellus shale[M].[S.l.]:Society of Petroleum Engineers,2013.
- [28]Ghadeer S G,Macquaker J H S.The role of event beds in the preservation of organic carbon in fine-grained sediments:Analyses of the sedimentological processes operating during deposition of the Whitby Mudstone Formation(Toarcian,Lower Jurassic)preserved in northeast England[J].Marine and Petroleum Geology,2012,35(1):309-320.
- [29]陈一鸣,魏秀丽,徐欢.北美页岩气储层孔隙类型研究的启示[J].复杂油气藏,2012,5(4):19-22.
- [30]吉利明,马向贤,夏燕青,等.黏土矿物甲烷吸附性能与微孔隙体积关系[J].天然气地球科学,2014,25(2):141-152.
- [31]王茂桢,柳少波,任拥军,等.页岩气储层粘土矿物孔隙特征及其甲烷吸附作用[J].地质论评,2015,61(1):207-216.
- [32]黄思静,黄可可,冯文立,等.成岩过程中长石、高岭石、伊利石之间的物质交换与次生孔隙的形成:来自鄂尔多斯盆地上古生界和川西凹陷三叠系须家河组的研究[J].地球化学,2009,38(5):498-506.
- [33]罗小平,吴飘,赵建红,等.富有机质泥页岩有机质孔隙研究进展[J].成都理工大学学报:自然科学版,2015,42(1):50-59.
- [34]曾联波,李忠兴,史成恩,等.鄂尔多斯盆地上三叠统延长组特低渗透砂岩储层裂缝特征及成因[J].地质学报,2007,81(2):174-180.
- [35]王香增.陆相页岩气[M].北京:石油工业出版社,2014.
- [36]Allen P A,Allen J R.Basin analysis:Principles and applications[M].Oxford:Blackwell Pubishing,2005.
- [37]Giles M R,Indrelid S L,James D M D.Compaction:The great unknown in basin modelling[J].Geological Society London Special Publications,1998,141(1):15-43.
- [38]Underdown R,Redfern J.Petroleum generation and migration in the Ghadames Basin,North Africa:A two-dimensional basinmodeling study[J].AAPG Bulletin,2008,92(1):53-76.
- [39]Athy L F.Density,porosity and compaction of sedimentary rocks[J].AAPG Bulletin,1930,14(1):1-24.
- [40]刘震,陈凯,朱文奇,等.鄂尔多斯盆地西峰地区长7段泥岩古压力恢复[J].中国石油大学学报:自然科学版,2012,36(2):1-7.