镇北-环县地区长4+5油层储层特征及其控制因素
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摘要
对陇东镇北-环县地区延长组长4+5油层的储集砂体进行了储层岩石学、储层物性、孔隙结构及储层控制因素的研究,结果表明:该区砂岩以长石岩屑砂岩和岩屑砂岩组成;储层孔隙类型以粒间孔和溶蚀孔为主;孔喉组合以小孔隙-微细喉道为主,压汞实验表明孔隙结构较好,主流喉道半径较大。长4+5储层物性整体相对较好,孔隙度平均11.5%,渗透率平均1.47×10-3μm2。造成储层相对高渗的原因主要是沉积作用和成岩作用,沉积作用控制了砂体的展布,在河道主体部位发育相对高渗储层,砂岩粒径及砂体成分影响储集性能;有利的成岩作用控制了相对高渗储层的分布,中-弱压实、弱胶结的成岩强度,伴随强烈溶蚀的发生,是造成镇北-环县地区储层相对高渗的重要原因。
Chang 4+5oil reservoir is one of the important new strata product replacements in ZhenbeiHuanxian area of Ordos Basin.By the research of the reservoir petrology and physical properties and pore structure and influential factor of reservoir,the composition of the rock types are mainly feldspathic lithic sandstone and lithic sandstone,and the pore types are mainly intergranular pore and dissolved pore and the pore combination with small pore and fine throat.Mercury injection experiment shows that better pore structure,mainstream throat radius,the reservoir overall is relatively good.Average porosity and permeability are 11.5% and 1.47×10-3μm2.The cause of relatively high permeability reservoir is the main sedimentary and diagenesis,among them the sedimentation controlls the distribution of sand bodies and growth is relatively high permeability reservoir in the main part of the river which influences the particle size of sandstone body composition and sand reservoir properties.Favorable diagenesis controlls the distribution of relatively high permeability reservoir,with strong corrosion,weak compaction and cementation.It is an important cause leading to relatively high permeability reservoir in Zhenbei-Huanxian area.
Chang 4+5oil reservoir is one of the important new strata product replacements in ZhenbeiHuanxian area of Ordos Basin.By the research of the reservoir petrology and physical properties and pore structure and influential factor of reservoir,the composition of the rock types are mainly feldspathic lithic sandstone and lithic sandstone,and the pore types are mainly intergranular pore and dissolved pore and the pore combination with small pore and fine throat.Mercury injection experiment shows that better pore structure,mainstream throat radius,the reservoir overall is relatively good.Average porosity and permeability are 11.5% and 1.47×10-3μm2.The cause of relatively high permeability reservoir is the main sedimentary and diagenesis,among them the sedimentation controlls the distribution of sand bodies and growth is relatively high permeability reservoir in the main part of the river which influences the particle size of sandstone body composition and sand reservoir properties.Favorable diagenesis controlls the distribution of relatively high permeability reservoir,with strong corrosion,weak compaction and cementation.It is an important cause leading to relatively high permeability reservoir in Zhenbei-Huanxian area.
引文
[1]关成尧,赵国春,李晓峰,等.白豹油田三叠系长3,长4+5沉积微相研究[J].新疆地质,2009,27(1):62-65.
[2]徐波,孙卫.姬塬油田长4+5砂岩储层孔隙类型与成岩作用[J].吉林大学学报:地球科学学报,2008,38(6):953-959.
[3]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,2002:131-180.
[4]何自新.鄂尔多斯盆地演化与油气[M].北京:石油工业出版社,2003:95-105.
[5]曾允孚,夏文杰.砂岩分类参考沉积岩石学[M].北京:地质出版社,1986:112-114.
[6]许靖华.大地构造与沉积作用[M].北京:地质出版社,1985:37-43.
[7]王振川,朱玉双,李超,等.姬塬油田胡154井区延长组长4+5储层特征[J].地质科技情报,2012,31(3):63-70.
[8]高辉,解伟,杨建鹏,等.基于恒速压汞技术的特低超低渗砂岩储层微观孔喉特征[J].石油实验地质,2011,33(2):206-211.
[9]焦春艳,何顺利,谢全,等.超低渗透砂岩储层应力感敏性实验[J].石油学报,2011,32(3):489-494.
[10]解伟,张创,孙卫,等.恒速压汞技术在长2储层孔隙结构研究中的应用[J].断块油气田,2011,18(5):549-551.
[11]刘忠华,吴淑琴,杜宝会,等.储层渗透性与地层因素关系的实验研究与分析[J].地球物理学报,2013,56(6):2088-2098.
[12]王瑞飞,陈明强,孙卫.鄂尔多斯盆地延长组超低渗透砂岩储层微观孔隙结构特征研究[J].地质论评,2008,54(2):270-277.
[13]李凤杰,王多云,徐旭辉.鄂尔多斯盆地陇东地区三叠系延长组储层特征及影响因素分析[J].石油实验地质,2005,27(4):365-371.
[14]王伟,朱玉双,牛小兵.鄂尔多斯盆地姬塬地区长6储层微观孔隙结构及控制因素[J].地质科技情报,2013,32(3):118-125.
[15]杨正明,张英芝,郝明强.低渗透油田储层综合评价方法[J].石油学报,2006,27(2):64-67.
[16]朱怡翔,田昌炳,于兴河,等.鄂尔多斯盆地苏里格气田相对高渗砂体的成因及其岩石物理测井识别方法[J].石油实验地质2004,26(4):389-393.
[17]杨建鹏.鄂尔多斯盆地合水地区长4+5储层特征与低渗成因探讨[J].石油地质与工程,2011,25(2):23-27.
[18]窦伟坦,侯明才,陈洪德,等.鄂尔多斯盆地三叠系延长组油气成藏条件及主控因素研究[J].成都理工大学学报:自然科学版,2008,35(6):686-693.
[19]王多云,郑希民,李风杰,等.低孔渗油气富集区优质储层形成条件及相关问题[J].天然气地球科学,2003,14(2):87-91.
[20]朱怡翔,田昌炳,于兴河,等.鄂尔多斯盆地苏里格气田相对高渗砂体的成因及其岩石物理测井识别方法[J].石油实验地质,2004,26(4):389-393.
[21]罗明高.定量储层地质学[M].北京:地质出版社,1998:22-32.
[22]刘伟,窦齐丰.成岩作用定量表征与成岩储集相研究[J].中国矿业大学报,2002,31(5):399-405.
[23]寿建峰,张惠良,斯春松,等.砂岩动力成岩作用[M].北京:石油工业出版社,2005:156-170.
[24]楚美娟,郭正权,齐亚林,等.鄂尔多斯盆地延长组长8储层定量化成岩作用及成岩相分析[J].天然气地球科学,2013,24(3):477-485.
[25]张一伟,熊琦华,王志章,等.陆相油藏描述[M].北京:石油工业出版社,1997:98-117.
[26]钟大康,张崇军,文应初.砂岩储集层物性影响因素定量分析方法[J].石油与天然气地质,2000,21(2):130-132.
[27]赖锦,王贵文,王书南,等.碎屑岩储层成岩相研究现状及进展[J].地球科学进展,2013,28(1):39-51.
[28]Scherer M.Parameters influencing porosity in sandstones:A model for sandstone porosity predicition[J].AAPG Bulletin,1987,71(5):485-491.
[29]McCreesh C A.Ehrlich R,Crabtree S J.Petrography and reservoir physics relating thin section porosity to apillary pressure,the association between pore types and throat size[J].AAPG Bulletin,1991,75(10):1563-1578.
[30]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.
[31]陈鑫,钟建华,袁静,等.渤南洼陷古近系高岭石发育特征及转化机理[J].石油勘探与开发,2009,36(4):456-462.
[32]雷晓岚.鄂尔多斯盆地中部姚店油田上三叠统长4+5储层砂岩的成岩作用[J].地质通报,2009,28(5):603-609.
[33]史丹妮,金巍.砂岩中自生石英的来源、运移与沉淀机制[J].岩相古地理,1999,19(6):65-70.
[34]杨奕华,南君祥.鄂尔多斯盆地上古生界砂岩储层的显微特征及储集性的影响因素[J].中国石油勘探,2001,6(4):37-43.
[35]季汉成,翁庆萍,杨潇.鄂尔多斯盆地安塞-神木地区山西组成岩与沉积相耦合关系[J].石油勘探与开发,2009,36(6):709-717.
[36]黄思静,黄培培,王庆东,等.胶结作用在深埋藏砂岩孔隙保存中的意义[J].岩性油气藏,2007,19(3):7-13.
[37]黄思静,佟宏鹏,黄可可,等.阴极发光分析在恢复砂岩碎屑长石含量中的应用[J].地球科学进展,2008,23(10):1013-1019.
[2]徐波,孙卫.姬塬油田长4+5砂岩储层孔隙类型与成岩作用[J].吉林大学学报:地球科学学报,2008,38(6):953-959.
[3]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,2002:131-180.
[4]何自新.鄂尔多斯盆地演化与油气[M].北京:石油工业出版社,2003:95-105.
[5]曾允孚,夏文杰.砂岩分类参考沉积岩石学[M].北京:地质出版社,1986:112-114.
[6]许靖华.大地构造与沉积作用[M].北京:地质出版社,1985:37-43.
[7]王振川,朱玉双,李超,等.姬塬油田胡154井区延长组长4+5储层特征[J].地质科技情报,2012,31(3):63-70.
[8]高辉,解伟,杨建鹏,等.基于恒速压汞技术的特低超低渗砂岩储层微观孔喉特征[J].石油实验地质,2011,33(2):206-211.
[9]焦春艳,何顺利,谢全,等.超低渗透砂岩储层应力感敏性实验[J].石油学报,2011,32(3):489-494.
[10]解伟,张创,孙卫,等.恒速压汞技术在长2储层孔隙结构研究中的应用[J].断块油气田,2011,18(5):549-551.
[11]刘忠华,吴淑琴,杜宝会,等.储层渗透性与地层因素关系的实验研究与分析[J].地球物理学报,2013,56(6):2088-2098.
[12]王瑞飞,陈明强,孙卫.鄂尔多斯盆地延长组超低渗透砂岩储层微观孔隙结构特征研究[J].地质论评,2008,54(2):270-277.
[13]李凤杰,王多云,徐旭辉.鄂尔多斯盆地陇东地区三叠系延长组储层特征及影响因素分析[J].石油实验地质,2005,27(4):365-371.
[14]王伟,朱玉双,牛小兵.鄂尔多斯盆地姬塬地区长6储层微观孔隙结构及控制因素[J].地质科技情报,2013,32(3):118-125.
[15]杨正明,张英芝,郝明强.低渗透油田储层综合评价方法[J].石油学报,2006,27(2):64-67.
[16]朱怡翔,田昌炳,于兴河,等.鄂尔多斯盆地苏里格气田相对高渗砂体的成因及其岩石物理测井识别方法[J].石油实验地质2004,26(4):389-393.
[17]杨建鹏.鄂尔多斯盆地合水地区长4+5储层特征与低渗成因探讨[J].石油地质与工程,2011,25(2):23-27.
[18]窦伟坦,侯明才,陈洪德,等.鄂尔多斯盆地三叠系延长组油气成藏条件及主控因素研究[J].成都理工大学学报:自然科学版,2008,35(6):686-693.
[19]王多云,郑希民,李风杰,等.低孔渗油气富集区优质储层形成条件及相关问题[J].天然气地球科学,2003,14(2):87-91.
[20]朱怡翔,田昌炳,于兴河,等.鄂尔多斯盆地苏里格气田相对高渗砂体的成因及其岩石物理测井识别方法[J].石油实验地质,2004,26(4):389-393.
[21]罗明高.定量储层地质学[M].北京:地质出版社,1998:22-32.
[22]刘伟,窦齐丰.成岩作用定量表征与成岩储集相研究[J].中国矿业大学报,2002,31(5):399-405.
[23]寿建峰,张惠良,斯春松,等.砂岩动力成岩作用[M].北京:石油工业出版社,2005:156-170.
[24]楚美娟,郭正权,齐亚林,等.鄂尔多斯盆地延长组长8储层定量化成岩作用及成岩相分析[J].天然气地球科学,2013,24(3):477-485.
[25]张一伟,熊琦华,王志章,等.陆相油藏描述[M].北京:石油工业出版社,1997:98-117.
[26]钟大康,张崇军,文应初.砂岩储集层物性影响因素定量分析方法[J].石油与天然气地质,2000,21(2):130-132.
[27]赖锦,王贵文,王书南,等.碎屑岩储层成岩相研究现状及进展[J].地球科学进展,2013,28(1):39-51.
[28]Scherer M.Parameters influencing porosity in sandstones:A model for sandstone porosity predicition[J].AAPG Bulletin,1987,71(5):485-491.
[29]McCreesh C A.Ehrlich R,Crabtree S J.Petrography and reservoir physics relating thin section porosity to apillary pressure,the association between pore types and throat size[J].AAPG Bulletin,1991,75(10):1563-1578.
[30]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.
[31]陈鑫,钟建华,袁静,等.渤南洼陷古近系高岭石发育特征及转化机理[J].石油勘探与开发,2009,36(4):456-462.
[32]雷晓岚.鄂尔多斯盆地中部姚店油田上三叠统长4+5储层砂岩的成岩作用[J].地质通报,2009,28(5):603-609.
[33]史丹妮,金巍.砂岩中自生石英的来源、运移与沉淀机制[J].岩相古地理,1999,19(6):65-70.
[34]杨奕华,南君祥.鄂尔多斯盆地上古生界砂岩储层的显微特征及储集性的影响因素[J].中国石油勘探,2001,6(4):37-43.
[35]季汉成,翁庆萍,杨潇.鄂尔多斯盆地安塞-神木地区山西组成岩与沉积相耦合关系[J].石油勘探与开发,2009,36(6):709-717.
[36]黄思静,黄培培,王庆东,等.胶结作用在深埋藏砂岩孔隙保存中的意义[J].岩性油气藏,2007,19(3):7-13.
[37]黄思静,佟宏鹏,黄可可,等.阴极发光分析在恢复砂岩碎屑长石含量中的应用[J].地球科学进展,2008,23(10):1013-1019.