Petroleum accumulation conditions of Damoguaihe Formation in Urxun—Beier Sags, Hailaer Basin
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摘要: 运用地层学、构造地质以及成藏系统等理论和方法,系统阐述乌尔逊—贝尔凹陷大磨拐河组油气成藏条件。凹陷断裂经历了铜钵庙组—大磨拐河组沉积期的伸展变形、伊敏组沉积期的走滑变形和青元岗组沉积期—古近纪末期的强烈反转变形3个阶段。大磨拐河组地层划分为3个三级层序和15个砂岩组,各个时期控制着不同沉积演化过程。大磨拐河组原油来源于南屯组,与南一段关系密切,存在2种油气运移方式:1)当断距大于300m时,南屯组生油源岩与大磨拐河组储层对接,从而构成直接侧向运移的旁生侧储型油藏;2)油沿(不整合面)油源断层自南屯组向上垂向运移至大磨拐河组,再短距离侧向运移形成下生上储型油藏,总结油藏类型为构造、岩性、地层及岩性—构造4大类。Abstract: The petroleum accumulation conditions of Damoguaihe Formation in the Urxun—Beier Sags of the Hailaer Basin were studied with stratigraphic,tectonic and accumulation system theories.The fractures in the study area experienced 3 stages of deformation including the extension during Tongbomiao and Damoguaihe periods,the strike-slip during Yimin period and the strong inversion during Qingyuangang and the late Paleogene periods.Damoguaihe Formation was divided into 3 third-grade sequences and 15 sand layers.Different stages controlled different sedimentary evolution processes.The crude oil in Damoguaihe Formation came from Nantun Formation and was closely related to the first member of Nantun Formation.There existed 2 ways of hydrocarbon migration.1)When the fault displacement was over 300 m,the source rocks in Nantun Formation connected with the reservoirs in Damoguaihe Formation,resulting in side-generating and side-reserving reservoirs.2)The hydrocarbon in Nantun Formation migrated upwards into Damoguaihe Formation,and then moved laterally for a short distance,forming lower-generating and upper-reserving reservoirs.The reservoirs in the region were classified into 4 types: tectonic,lithologic,stratigraphic and lithologic—tectonic.
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[1] 吴河勇,李子顺,冯子辉,等.海拉尔盆地乌尔逊—贝尔凹陷构造特征与油气成藏过程分析[J].石油学报,3006,27(1):1-6. [2] 刘志宏,万传彪,任延广,等.海拉尔盆地乌尔逊-贝尔凹陷的地质特征及油气成藏规律[J].吉林大学学报(地球科学版),3006,36(4):537-534. [3] 刘志宏,任延广,李春柏,等.海拉尔盆地乌尔逊—贝尔凹陷的构造特征及其对油气成藏的影响[J].大地构造与成矿学.2007,31(2):151-156. [4] 雷燕平,林畅松,刘景彦,等.海拉尔盆地贝尔凹陷下白至统层序地层与沉积体系分析[J].石油地质与工程,2007.21(5):11-15. [5] 李军辉,卢双舫,柳成志,等.贝尔凹陷贝西斜坡南屯组层序特征及其油气成藏模式研究[J].沉积学报,2009,27(2):306-311. [6] 霍秋立,汪振英,李敏,等.海拉尔盆地乌尔逊凹陷油源及油气运移研究[J].吉林大学学报(地球科学版),2006,36(3):377-383. [7] 曹瑞成,曲希玉,文全,等.海拉尔盆地贝尔凹陷储层物性特征及控制因素[J].吉林大学学报(地球科学版),2009,39(1):23-30. [8] 沈华,李春柏,陈发景,等.伸展断陷盆地的演化特征:以海拉尔盆地贝尔凹陷为例[J].现代地质,2005,19(2):287-294. [9] 渠永宏,廖远慧,赵利华,等.高分辨率层序地层在断陷盆地中的应用:以海拉尔盆地贝尔断陷为例[J].石油学报,2006,27(1):31-37. [10] 李占东,卢双舫,周件林.海拉尔盆地贝西斜坡北部白垩系南电组层序界面识别与地层格架研究[J].地层学杂志,2009,33(2):169-176. [11] 李占东,周件林,文华,等.海拉尔盆地贝西斜坡北部地区储层特征及影响因素分析[J].岩石矿物学杂志,2008,27(1):45-51. [12] 付广,王有功,黄劲松.倾斜裂缝垂向封闭性演化特征研究:以海拉尔盆地贝尔凹陷布达特群为例[J].地质科学,2008,43(1):23-33. [13] 王雪峰,李忠权,蒙启安,等.构造因素对地震剖面视频率的影响:以海拉尔盆地乌尔逊凹陷为例[J].石油实验地质,2010,32(1):87-92. [14] 刘新颖,邓宏文,邸永香,等.海拉尔盆地乌尔逊凹陷南屯组优质烃源岩发育特征[J].石油实验地质,2009,31(1):68-73. [15] 魏建设,庞雄奇,卢进才,等.乌尔逊—贝尔凹陷油气分布规律及其主控因素[J].天然气工业,2008,23(4):19-25. [16] 李占东,张明学,胡玉双,等.海拉尔盆地贝尔凹陷构造演化及其对油气控制[J].科学技术与工程,2010,10(9):2067-2074. [17] 张吉光,彭苏萍,张宝玺,等.乌尔逊—贝尔断陷油气藏类型与勘探方法探讨[J].石油勘探与开发,2002,29(3):48-50. [18] 王家亮,张金川,张杰,等.海拉尔盆地贝尔凹陷的油气运聚分析[J].现代地质,2003,17(4):459-465. [19] 汪新伟,沃玉进,周雁,等.构造作用对油气保存影响的研究进展:以上扬子地区为例[J].石油实验地质,2011,33(1):35-42. [20] 张秋,聂志阳,谭志伟,等.海拉尔盆地乌尔逊凹陷水文地质特征与油气运聚关系[J].石油实验地质,2010,32(5):453-458. -
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