川东北地区长兴组—飞仙关组储层特征
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摘要
为研究川东北地区黑池梁台地南江东—黑池梁、镇巴地区储层特征及差异性主控因素,开展了露头及新增钻井岩心观察描述、岩石普通薄片及铸体薄片鉴定、储层物性测试、地震解释等工作。从沉积、成岩方面入手,系统对比与剖析了南江东—黑池梁及镇巴地区长兴组—飞仙关组储层岩性、储集空间、储层厚度及物性的差异性,并对其成因进行了分析。结果表明,这2个地区在储层岩性、厚度、储集性能等方面具有一定的相似性,同时也存在一定的差异,并且认为古地貌及基底断裂、成岩作用与构造作用均是造成储层差异的关键因素。该研究成果可为川东北地区下一步油气勘探提供地质依据。
In order to study the reservoir characteristics and main controlling factors of reservoir differences in Zhenba and eastern Nanjiang-Heichiliang areas in Heichiliang platform of northeastern Sichuan Basin,the observation and description of outcrops and newly added drilling cores,identification of common and cast thin sections of rocks,reservoir property test and seismic interpretation,were carried out to systematically compare and analyze the reservoir lithology,space,thickness and properties of Changxing-Feixianguan Formation in eastern NanjiangHeichiliang and Zhenba areas from the aspects of sedimentation and diagenesis,and their causes were analyzed.The results show that the two areas have some similarities in reservoir lithology,thickness and reservoir performance,but there are also some differences. Paleogeomorphology,basement faults,diagenesis and tectonism are the key factors causing reservoir differences. The research results can provide geological basis for the next oil and gas exploration in northeastern Sichuan Basin.
In order to study the reservoir characteristics and main controlling factors of reservoir differences in Zhenba and eastern Nanjiang-Heichiliang areas in Heichiliang platform of northeastern Sichuan Basin,the observation and description of outcrops and newly added drilling cores,identification of common and cast thin sections of rocks,reservoir property test and seismic interpretation,were carried out to systematically compare and analyze the reservoir lithology,space,thickness and properties of Changxing-Feixianguan Formation in eastern NanjiangHeichiliang and Zhenba areas from the aspects of sedimentation and diagenesis,and their causes were analyzed.The results show that the two areas have some similarities in reservoir lithology,thickness and reservoir performance,but there are also some differences. Paleogeomorphology,basement faults,diagenesis and tectonism are the key factors causing reservoir differences. The research results can provide geological basis for the next oil and gas exploration in northeastern Sichuan Basin.
引文
[1]王一刚,洪海涛,夏茂龙,等.四川盆地二叠、三叠系环海槽礁、滩富气带勘探.天然气工业,2008,28(1):22-27.WANG Y G,HONG H T,XIA M L,et al.Exploration of reefbank gas reservoirs surrounding Permian and Triassic troughs in Sichuan Basin.Natural Gas Industry,2008,28(1):22-27.
[2]刘树根,孙玮,李智武,等.四川叠合盆地海相碳酸盐岩油气分布特征及其构造主控因素.岩性油气藏,2016,28(5):1-17.LIU S G,SUN W,LI Z W,et al.Distribution characteristics of marine carbonate reservoirs and their tectonic controlling factors across the Sichuan superimposed basin.Lithologic Reservoirs,2016,28(5):1-17.
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[4]姜海健,陈强路,乔桂林,等.塔里木盆地中东部中下奥陶统颗粒滩发育特征及分布.岩性油气藏,2017,29(5):67-75.JIANG H J,CHEN Q L,QIAO G L,et al.Characteristics and distribution of Lower-Middle Ordovician grain bank in mideastern Tarim Basin.Lithologic Reservoirs,2017,29(5):67-75.
[5]关新,陈世加,苏旺,等.四川盆地西北部栖霞组碳酸盐岩储层特征及主控因素.岩性油气藏,2018,30(2):67-76.GUAN X,CHEN S J,SU W,et al.Carbonate reservoir characteristics and main controlling factors of Middle Permian Qixia Formation in NW Sichuan Basin.Lithologic Reservoirs,2018,30(2):67-76.
[6]章宇路,文华国,郑荣才,等.川东北铁山-双家坝地区长兴组白云岩成因.岩性油气藏,2016,28(5):34-43.ZHANG Y L,WEN H G,ZHENG R C,et al.Genesis of dolomite of Changxing Formation in Tieshan-Shuangjiaba area,northeast Sichuan Basin.Lithologic Reservoirs,2016,28(5):34-43.
[7]ANNETTE D G,NANCY C,KATE M T.Syndepositional fault control on lower Frasnian platform evolution,Lennard Shelf,Canning Basin,Australia.Geology,2009,37(4):331-334.
[8]王春连,刘成林,龙胜祥,等.四川盆地东北部地区长兴组碳酸盐岩成岩作用及储层孔隙演化.地质与勘探,2011,47(5):846-855.WANG C L,LIU C L,LONG S X,et al.Diagenesis of the Changxing Formation carbonate rocks in the northeastern Sichuan Basin and reservoir porosity evolution.Geology and Exploration,2011,47(5):846-855.
[9]王恕一,蒋小琼,管宏林,等.川东北地区普光气田飞仙关组储层孔隙演化.石油实验地质,2009,31(1):26-30.WANG S Y,JIANG X Q,GUAN H L,et al.Pore evolution of reservoirs of Feixianguan Formation in Puguang Gasfield in northeastern Sichuan.Petroleum Geology&Experiment,2009,31(1):26-30.
[10]马永生,牟传龙,郭彤楼,等.四川盆地东北部长兴组层序地层与储层分布.地学前缘,2005,12(3):179-185.MA Y S,MU C L,GUO T L,et al.Sequence stratigraphy and reservoir distribution of the Changxing Formation in northeastern Sichuan Basin.Earth Science Frontiers,2005,12(3):179-185.
[11]杨威,魏国齐,金惠,等.川东北飞仙关组鲕滩储层成岩作用和孔隙演化.中国地质,2007,34(5):822-828.YANG W,WEI G Q,JIN H,et al.Diagenesis and pore evolution of the oolitic shoal reservoir in the Feixianguan Formation in northeastern Sichuan.Geology in China,2007,34(5):822-828.
[12]郭彤楼.川东北元坝地区长兴组-飞仙关组台地边缘层序地层及其对储层的控制.石油学报,2011,32(3):387-394.GUO T L.Sequence strata of the platform edge in the Changxing and Feixianguan formations in the Yuanba area,northeastern Sichuan Basin and their control on reservoirs.Acta Petrolei Sinica,2011,32(3):387-394.
[13]郭彤楼.川东北地区台地边缘礁、滩气藏沉积与储层特征.地学前缘,2011,18(4):201-211.GUO T L.The characteristics of sedimentation and reservoirs of reef beach gas fields in carbonate platform margins,northeastern Sichuan Basin.Earth Science Frontiers,2011,18(4):201-211.
[14]王一刚,文应初,张帆,等.川东地区上二叠统长兴组生物礁分布规律.天然气工业,1998,18(6):10-15.WANG Y G,WEN Y C,ZHANG F,et al.Distribution law of the organic reefs in Changing Formation of Upper Permian in east Sichuan.Natural Gas Industry,1998,18(6):10-15.
[15]赵雪凤,朱光有,张水昌,等.川东北普光地区与塔中地区深部礁滩体优质储层的对比研究.沉积学报,2009,27(3):390-400.ZHAO X F,ZHU G Y,ZHANG S C,et al.Comparison of deeply buried and high-quality reef-bank facies reservoirs of Puguang gas field in the northeast of Sichuan Basin with Tazhong gas fields of Tarim Basin.Acta Sedimentologica Sinica,2009,27(3):390-400.
[16]李国军,郑荣才,唐玉林,等.川东北地区飞仙关组层序-岩相古地理特征.岩性油气藏,2007,19(4):64-70.LI G J,ZHENG R C,TANG Y L,et al.Sequence-based lithofacies and paleogeography of the Lower Triassic Feixianguan Formation in northeastern Sichuan Basin.Lithologic Reservoirs,2007,19(4):64-70.
[17]赵彦彦,郑永飞.碳酸盐沉积物的成岩作用.岩石学报,2011,27(2):501-519.ZHAO Y Y,ZHENG Y F.Diagenesis of carbonate sediments.Acta Petrologica Sinica,2011,27(2):501-519.
[18]胡东风.普光气田与元坝气田礁滩储层特征的差异性及其成因.天然气工业,2011,31(10):1-5.HU D F.Differences in reef-bank reservoir features between Puguang and Yuanba gas fields and their reasons.Natural Gas Industry,2011,31(10):1-5.
[19]谭秀成,罗冰,江兴福,等.四川盆地基底断裂对长兴组生物礁的控制作用研究.地质论评,2012,58(2):277-284.TAN X C,LUO B,JIANG X F,et al.Controlling effect of basement fault on Changxing Formation reef in Sichuan Basin.Geological Review,2012,58(2):277-284.
[20]李小燕,王琪,张瑞,等.川东北地区上二叠统盘龙洞生物礁储层特征及其主控因素分析.天然气地球科学,2009,20(1):63-69.LI X Y,WANG Q,ZHANG R,et al.Reservoir characteristics and main controlling factors of Upper Permian Panlongdong organic reefs in northeastern Sichuan.Natural Gas Geoscience,2009,20(1):63-69.
[21]张春,蒋裕强,王立恩,等.川东北地区须家河组二段储层差异性分析.西南石油大学学报(自然科学版),2013,35(2):29-36.ZHANG C,JIANG Y Q,WANG L E,et al.Analysis of reservoir differences of member 2 of the Xujiahe Formation in northeast Sichuan Basin.Journal of Southwest Petroleum University(Science&Technology Edition),2013,35(2):29-36.
[2]刘树根,孙玮,李智武,等.四川叠合盆地海相碳酸盐岩油气分布特征及其构造主控因素.岩性油气藏,2016,28(5):1-17.LIU S G,SUN W,LI Z W,et al.Distribution characteristics of marine carbonate reservoirs and their tectonic controlling factors across the Sichuan superimposed basin.Lithologic Reservoirs,2016,28(5):1-17.
[3]孙春燕,胡明毅,胡忠贵,等.川东北达川-万县地区下三叠统飞仙关组层序地层研究.岩性油气藏,2017,29(4):30-37.SUN C Y,HU M Y,HU Z G,et al.Characteristics of sequence stratigraphy of the Lower Triassic Feixianguan Formation in Dachuan-Wanxian area,northeastern Sichuan Basin.Lithologic Reservoirs,2017,29(4):30-37.
[4]姜海健,陈强路,乔桂林,等.塔里木盆地中东部中下奥陶统颗粒滩发育特征及分布.岩性油气藏,2017,29(5):67-75.JIANG H J,CHEN Q L,QIAO G L,et al.Characteristics and distribution of Lower-Middle Ordovician grain bank in mideastern Tarim Basin.Lithologic Reservoirs,2017,29(5):67-75.
[5]关新,陈世加,苏旺,等.四川盆地西北部栖霞组碳酸盐岩储层特征及主控因素.岩性油气藏,2018,30(2):67-76.GUAN X,CHEN S J,SU W,et al.Carbonate reservoir characteristics and main controlling factors of Middle Permian Qixia Formation in NW Sichuan Basin.Lithologic Reservoirs,2018,30(2):67-76.
[6]章宇路,文华国,郑荣才,等.川东北铁山-双家坝地区长兴组白云岩成因.岩性油气藏,2016,28(5):34-43.ZHANG Y L,WEN H G,ZHENG R C,et al.Genesis of dolomite of Changxing Formation in Tieshan-Shuangjiaba area,northeast Sichuan Basin.Lithologic Reservoirs,2016,28(5):34-43.
[7]ANNETTE D G,NANCY C,KATE M T.Syndepositional fault control on lower Frasnian platform evolution,Lennard Shelf,Canning Basin,Australia.Geology,2009,37(4):331-334.
[8]王春连,刘成林,龙胜祥,等.四川盆地东北部地区长兴组碳酸盐岩成岩作用及储层孔隙演化.地质与勘探,2011,47(5):846-855.WANG C L,LIU C L,LONG S X,et al.Diagenesis of the Changxing Formation carbonate rocks in the northeastern Sichuan Basin and reservoir porosity evolution.Geology and Exploration,2011,47(5):846-855.
[9]王恕一,蒋小琼,管宏林,等.川东北地区普光气田飞仙关组储层孔隙演化.石油实验地质,2009,31(1):26-30.WANG S Y,JIANG X Q,GUAN H L,et al.Pore evolution of reservoirs of Feixianguan Formation in Puguang Gasfield in northeastern Sichuan.Petroleum Geology&Experiment,2009,31(1):26-30.
[10]马永生,牟传龙,郭彤楼,等.四川盆地东北部长兴组层序地层与储层分布.地学前缘,2005,12(3):179-185.MA Y S,MU C L,GUO T L,et al.Sequence stratigraphy and reservoir distribution of the Changxing Formation in northeastern Sichuan Basin.Earth Science Frontiers,2005,12(3):179-185.
[11]杨威,魏国齐,金惠,等.川东北飞仙关组鲕滩储层成岩作用和孔隙演化.中国地质,2007,34(5):822-828.YANG W,WEI G Q,JIN H,et al.Diagenesis and pore evolution of the oolitic shoal reservoir in the Feixianguan Formation in northeastern Sichuan.Geology in China,2007,34(5):822-828.
[12]郭彤楼.川东北元坝地区长兴组-飞仙关组台地边缘层序地层及其对储层的控制.石油学报,2011,32(3):387-394.GUO T L.Sequence strata of the platform edge in the Changxing and Feixianguan formations in the Yuanba area,northeastern Sichuan Basin and their control on reservoirs.Acta Petrolei Sinica,2011,32(3):387-394.
[13]郭彤楼.川东北地区台地边缘礁、滩气藏沉积与储层特征.地学前缘,2011,18(4):201-211.GUO T L.The characteristics of sedimentation and reservoirs of reef beach gas fields in carbonate platform margins,northeastern Sichuan Basin.Earth Science Frontiers,2011,18(4):201-211.
[14]王一刚,文应初,张帆,等.川东地区上二叠统长兴组生物礁分布规律.天然气工业,1998,18(6):10-15.WANG Y G,WEN Y C,ZHANG F,et al.Distribution law of the organic reefs in Changing Formation of Upper Permian in east Sichuan.Natural Gas Industry,1998,18(6):10-15.
[15]赵雪凤,朱光有,张水昌,等.川东北普光地区与塔中地区深部礁滩体优质储层的对比研究.沉积学报,2009,27(3):390-400.ZHAO X F,ZHU G Y,ZHANG S C,et al.Comparison of deeply buried and high-quality reef-bank facies reservoirs of Puguang gas field in the northeast of Sichuan Basin with Tazhong gas fields of Tarim Basin.Acta Sedimentologica Sinica,2009,27(3):390-400.
[16]李国军,郑荣才,唐玉林,等.川东北地区飞仙关组层序-岩相古地理特征.岩性油气藏,2007,19(4):64-70.LI G J,ZHENG R C,TANG Y L,et al.Sequence-based lithofacies and paleogeography of the Lower Triassic Feixianguan Formation in northeastern Sichuan Basin.Lithologic Reservoirs,2007,19(4):64-70.
[17]赵彦彦,郑永飞.碳酸盐沉积物的成岩作用.岩石学报,2011,27(2):501-519.ZHAO Y Y,ZHENG Y F.Diagenesis of carbonate sediments.Acta Petrologica Sinica,2011,27(2):501-519.
[18]胡东风.普光气田与元坝气田礁滩储层特征的差异性及其成因.天然气工业,2011,31(10):1-5.HU D F.Differences in reef-bank reservoir features between Puguang and Yuanba gas fields and their reasons.Natural Gas Industry,2011,31(10):1-5.
[19]谭秀成,罗冰,江兴福,等.四川盆地基底断裂对长兴组生物礁的控制作用研究.地质论评,2012,58(2):277-284.TAN X C,LUO B,JIANG X F,et al.Controlling effect of basement fault on Changxing Formation reef in Sichuan Basin.Geological Review,2012,58(2):277-284.
[20]李小燕,王琪,张瑞,等.川东北地区上二叠统盘龙洞生物礁储层特征及其主控因素分析.天然气地球科学,2009,20(1):63-69.LI X Y,WANG Q,ZHANG R,et al.Reservoir characteristics and main controlling factors of Upper Permian Panlongdong organic reefs in northeastern Sichuan.Natural Gas Geoscience,2009,20(1):63-69.
[21]张春,蒋裕强,王立恩,等.川东北地区须家河组二段储层差异性分析.西南石油大学学报(自然科学版),2013,35(2):29-36.ZHANG C,JIANG Y Q,WANG L E,et al.Analysis of reservoir differences of member 2 of the Xujiahe Formation in northeast Sichuan Basin.Journal of Southwest Petroleum University(Science&Technology Edition),2013,35(2):29-36.