大兴安岭以西弧形断陷盆地群油气地质特点与含油气性
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摘要
大兴安岭以西分布一系列断陷盆地,已经发现数十个油田。从断陷盆地群的构造演化与受控机制出发分析各断陷的分布特点和类型,在分析成藏要素及其组合类型基础上研究油气成藏模式和分布特点。研究结果表明:大兴安岭以西断陷盆地群在平面上展现为3个带状弧形,断陷有单断、双断和组合式3种样式;大多数断陷具有中等—好烃源岩,储集层以岩屑长石砂岩、岩屑砂岩为主,另发育变质岩、火山岩等储层,除了常见的构造、岩性油气藏外,断陷中还发育变质岩、火山岩油藏;断陷成藏期在晚白垩世及古近纪,富烃洼槽控制油气时空分布,特殊储层具有形成大油田的有利条件,存在多个小而肥的凹槽,且稠油具有一定的勘探潜力。具相似含油气系统的断陷是今后的勘探目标。
A series of fault basins are distributed in West Daxing'anling Mountains,and tens of the oilfields have been discovered there. The distribution features and types of each fault depression were analyzed by the structural evolution and control mechanism for the fault basin group,on the bases of analyzing the accumulating factors and their combined forms,the accumulating modes and distribution characteristics were researched for the oil and gas.The study achievements show that for the groups in the west of Daxing 'anling Mountains,three belt-like arcs are spread in the plane,there are three kinds of the combination: single break,double break and combined form,most of the fault depressions have medium to good hydrocarbon source rocks,reservoirs are mainly lithic feldspar sand-stone and lithic sandstone,and the other reservoirs such as metamorphic and volcanic rocks etc. are well-developed. In addition to the common structural and lithologic oil and gas reservoirs,the metamorphic and volcanic reservoirs are still well-developed in the depressions; the accumulation periods are in the late Cretaceous and Paleogene ages,the hydrocarbon-rich cavity and low control the time and space distributions of the oil and gas,the special reservoirs have the favorable conditions of accumulating and enriching large-scale oilfield and multiple small and fat grooves,and furthermore possess a a certain exploration potential for the heavy oil. The fault depressions with the similar petroleum system will be the exploration targets in the future.
A series of fault basins are distributed in West Daxing'anling Mountains,and tens of the oilfields have been discovered there. The distribution features and types of each fault depression were analyzed by the structural evolution and control mechanism for the fault basin group,on the bases of analyzing the accumulating factors and their combined forms,the accumulating modes and distribution characteristics were researched for the oil and gas.The study achievements show that for the groups in the west of Daxing 'anling Mountains,three belt-like arcs are spread in the plane,there are three kinds of the combination: single break,double break and combined form,most of the fault depressions have medium to good hydrocarbon source rocks,reservoirs are mainly lithic feldspar sand-stone and lithic sandstone,and the other reservoirs such as metamorphic and volcanic rocks etc. are well-developed. In addition to the common structural and lithologic oil and gas reservoirs,the metamorphic and volcanic reservoirs are still well-developed in the depressions; the accumulation periods are in the late Cretaceous and Paleogene ages,the hydrocarbon-rich cavity and low control the time and space distributions of the oil and gas,the special reservoirs have the favorable conditions of accumulating and enriching large-scale oilfield and multiple small and fat grooves,and furthermore possess a a certain exploration potential for the heavy oil. The fault depressions with the similar petroleum system will be the exploration targets in the future.
引文
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[20]董庸,马立桥,孙凤霞.二连盆地阿南凹陷浅层低熟油气勘探潜力[J].石油与天然气地质,2007,28(5):610-614.
[21]毛治国,朱如凯,王京红,等.中国沉积盆地火山岩储层特征与油气聚集[J].特种油气藏,2015,22(5):1-8.
[22]刘雅利.断陷盆地连续型油气藏分布范围的确定方法:以渤南地区沙四段为例[J].油气地质与采收率,2015,22(2):1-8.
[23]王永霖,张吉光,秦建忠.海拉尔盆地巴彦呼舒凹陷未熟油勘探前景[J].石油实验地质,2005,27(3):238-244.
[24]杨小丽,房磊,徐伟,等.裂谷盆地高凝油藏扇三角洲沉积演化模式[J].特种油气藏,2016,23(2):18-21.
[25]李子顺,彭威,申文静,等.海拉尔盆地外围凹陷与乌尔逊—贝尔凹陷油气地质特征类比[J].大庆石油地质与开发,2014,33(5):131-137.
[26]张吉光,王金奎,秦龙卜,等.贝尔断陷苏德尔特变质岩潜山油藏特征[J].石油学报,2007,28(4):21-25.
[27]杜金虎,易士威,雷怀玉,等.二连盆地岩性地层油藏形成条件与油气分布规律[J].中国石油勘探,2004,9(3):1-5.
[28]降栓奇,司继伟,赵安军.二连盆地吉尔嘎朗图凹陷岩性油藏勘探[J].中国石油勘探,2000,5(2):46-53.
[29]李正文,王元杰,殷宏平,等.二连盆地巴音都兰凹陷油气勘探再获新发现[J].中国石油勘探,2003,8(2):42-47.
[30]李月,胥凯,颜世永,等.含油气盆地油气输导体系分析[J].油气地质与采收率,2015,22(1):32-36.
[31]李秀英,肖阳,杨全凤,等.二连盆地阿南洼槽岩性油藏及致密油勘探潜力[J].中国石油勘探,2013,18(6):56-61.
[32]肖阳,唐谨,孙朝辉.二连盆地阿尔凹陷油气成藏条件及油藏类型[J].中国石油勘探,2010,15(2):41-44.
[33]窦立荣,徐树宝,祝玉衡,等.二连盆地重质稠油藏成因及地化特征[J].石油学报,1995,16(2):1-7.
[34]李春柏,蒙启安,朱德丰,等.海拉尔—塔木察格盆地原型特征与控油作用[J].大庆石油地质与开发,2014,33(5):138-146.
[35]付广,陈建华.断层圈闭油气成藏源—断—势控藏作用综合评价:以海塔盆地中部主要断陷带南一段为例[J].油气地质与采收率,2015,22(6):1-6.
[36]于银花,白国强,周理永.中原油田大漠寻油[J].中国石油石化,2016,(15):48-51.
[2]李国玉,金之钧.世界含油气盆地图集[M].油工业出版社,2005.
[3]李晓清,丘东洲,刘和甫,等.蒙古弧形褶皱带上叠沉积盆地油气远景[J].地学前缘,2006,13(6):72-81.
[4]费宝生.从二连盆地看东北亚地区裂谷盆地群油气勘探[J].大庆石油地质与开发,2002,21(3):1-6.
[5]孟庆任,胡健民,袁选俊,等.中蒙边界地区晚中生代伸展盆地的结构、演化和成因[J].地质通报,2002,21(4-5):224-231.
[6]吴根耀,曹瑞成,蒙启安,等.东北亚晚中生代—新生代北东向断裂和盆地发育[J].大庆石油地质与开发,2014,33(1):1-15.
[7]张晓东,王颖,李桂荣.北方侏罗、白垩系盆地形成、演化及地球动力学背景[J].大庆石油地质与开发,2005,24(5):17-19.
[8]周荔青,刘池阳.中国东北油气区晚侏罗世—早白垩世断陷油气成藏特征[J].中国石油勘探,2004,9(2):20-25.
[9]王东方,权恒.大兴安岭中生代构造岩浆作用[J].地球科学(武汉地质学院学报),1984,7(3):81-89.
[10]郭彦如,王新民,刘文岭.银根—额济纳旗盆地含油气系统与油气勘探前景[J].大庆石油地质与开发,2000,19(6):4-8.
[11]吴茂炳、王新民.银根—额济纳旗盆地油气地质特征及油气勘探方向[J].中国石油勘探,2003,8(4):45-49.
[12]王冰.二连中生代盆地群构造地质特征与油气[J].石油实验地质,1990,12(1):8-20.
[13]钟延秋,孙国昕,张立国,等.蒙古尼尔金盆地石油地质特征及勘探前景[J].大庆石油地质与开发,2003,22(6):22-23.
[14]张吉光.海拉尔盆地构造特征与含油气性探讨[J].大庆石油地质与开发,1992,11(1):14-20.
[15]覃勤,华松涛,安永民,等.蒙古东戈壁盆地白垩系成藏组合与勘探潜力[J].中国石油勘探,2016,21(5):81-89.
[16]郭亚俊,赵志刚,胡金堂.东戈壁盆地宗巴音凹陷构造发育特征研究[J].中国石油勘探,2009,14(2):14-30.
[17]赵玉华,李晓清,程有义.蒙古国戈壁盆地群地质特征及含油气性[J].沉积与特提斯地质,2003,23(3):103-106.
[18]程有义,李晓清,赵玉华.蒙古戈壁盆地群烃源条件分析[J].油气地质与采收率,2003,10(5):102-105.
[19]石油地质勘探专业标准化委员会.陆相烃源岩地球化学评价方法,SY/T 5735—1995(S).北京:石油工业出版社,1995.
[20]董庸,马立桥,孙凤霞.二连盆地阿南凹陷浅层低熟油气勘探潜力[J].石油与天然气地质,2007,28(5):610-614.
[21]毛治国,朱如凯,王京红,等.中国沉积盆地火山岩储层特征与油气聚集[J].特种油气藏,2015,22(5):1-8.
[22]刘雅利.断陷盆地连续型油气藏分布范围的确定方法:以渤南地区沙四段为例[J].油气地质与采收率,2015,22(2):1-8.
[23]王永霖,张吉光,秦建忠.海拉尔盆地巴彦呼舒凹陷未熟油勘探前景[J].石油实验地质,2005,27(3):238-244.
[24]杨小丽,房磊,徐伟,等.裂谷盆地高凝油藏扇三角洲沉积演化模式[J].特种油气藏,2016,23(2):18-21.
[25]李子顺,彭威,申文静,等.海拉尔盆地外围凹陷与乌尔逊—贝尔凹陷油气地质特征类比[J].大庆石油地质与开发,2014,33(5):131-137.
[26]张吉光,王金奎,秦龙卜,等.贝尔断陷苏德尔特变质岩潜山油藏特征[J].石油学报,2007,28(4):21-25.
[27]杜金虎,易士威,雷怀玉,等.二连盆地岩性地层油藏形成条件与油气分布规律[J].中国石油勘探,2004,9(3):1-5.
[28]降栓奇,司继伟,赵安军.二连盆地吉尔嘎朗图凹陷岩性油藏勘探[J].中国石油勘探,2000,5(2):46-53.
[29]李正文,王元杰,殷宏平,等.二连盆地巴音都兰凹陷油气勘探再获新发现[J].中国石油勘探,2003,8(2):42-47.
[30]李月,胥凯,颜世永,等.含油气盆地油气输导体系分析[J].油气地质与采收率,2015,22(1):32-36.
[31]李秀英,肖阳,杨全凤,等.二连盆地阿南洼槽岩性油藏及致密油勘探潜力[J].中国石油勘探,2013,18(6):56-61.
[32]肖阳,唐谨,孙朝辉.二连盆地阿尔凹陷油气成藏条件及油藏类型[J].中国石油勘探,2010,15(2):41-44.
[33]窦立荣,徐树宝,祝玉衡,等.二连盆地重质稠油藏成因及地化特征[J].石油学报,1995,16(2):1-7.
[34]李春柏,蒙启安,朱德丰,等.海拉尔—塔木察格盆地原型特征与控油作用[J].大庆石油地质与开发,2014,33(5):138-146.
[35]付广,陈建华.断层圈闭油气成藏源—断—势控藏作用综合评价:以海塔盆地中部主要断陷带南一段为例[J].油气地质与采收率,2015,22(6):1-6.
[36]于银花,白国强,周理永.中原油田大漠寻油[J].中国石油石化,2016,(15):48-51.