Dynamic analysis and accumulation process recovery of typical reservoirs in Zhenjing region, south of Ordos Basin
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摘要: 利用孔隙演化史恢复、生烃史热模拟和流体包裹体分析等技术对鄂尔多斯盆地南部镇泾地区典型油藏进行了动态解剖。分析结果表明,研究区长8岩性圈闭形成时间为晚侏罗世以来(160 Ma);长7主力烃源岩初始生烃时间为侏罗纪末(140 Ma),大规模生烃时间为早白垩世末期(100 Ma);长8油藏为两期成藏,成藏时间分别为早白垩世中期(130 Ma)和晚白垩世早期(90 Ma);圈闭形成期、主力生烃期和关键成藏期时间配置关系好,有利于长8油藏的形成。结合构造演化,恢复油气充注成藏过程,建立了油气成藏动态演化模式,即"多期成藏、中期为主、晚期调整定型"。Abstract: The dynamic analyses of typical reservoirs in Zhenjing region of the southern Ordos Basin have been carried out based on pore evolution history recovery,petroleum generation history thermal simulation and fluid inclusion analyses.The Chang8 lithologic traps were formed since the late Jurassic (160 Ma).The Chang7 source rocks began to generate petroleum at the end of Jurassic (140 Ma) and achieved the peak at the end of early Cretaceous (100 Ma).The Chang8 reservoirs were formed during 2 stages,including the medium of early Cretaceous (130 Ma) and the beginning of late Cretaceous (90 Ma).The times for trap formation,petroleum generation and reservoir formation matched well,which was favorable for the formation of Chang8 reservoirs.The charging and accumulation processes of petroleum were recovered according to the studies of tectonic evolution.A dynamic evolution model illustrating the process of reservoir formation was made,characterized by "multiple stages of accumulation,mainly formed during the middle stage and late stage adjustment".
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[1] 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,2002:20-25. [2] 周文,刘飞,戴建文,等.镇泾地区中生界油气成藏影响因素[J].油气地质与采收率,2008,15(2):5-8. [3] 王震,李仲东,惠宽洋,等.鄂尔多斯盆地镇泾地区中生界油气成藏主控因素分析[J].断块油气田,2007,14(3):25-27. [4] 英亚歌,王震亮,范昌育.鄂尔多斯盆地陇东地区延长组流体动力作用下的石油运移与聚集特征[J].石油与天然气地质,2011,32(1):118-123. [5] 武明辉,张刘平,罗晓容,等.西峰油田延长组长8段储层流体作用期次分析[J].石油与天然气地质,2006,27(1):33-36. [6] 姚素平,张科,胡文瑄,等.鄂尔多斯盆地三叠系延长组沉积有机相[J].石油与天然气地质,2009,30(1):74-81. [7] 杨华,张文正.论鄂尔多斯盆地长7段优质油源岩在低渗透油气成藏富集中的主导作用:地质地球化学特征[J].地球化学,2005,34(2):147-154. [8] 王震,李仲东,惠宽洋,等.鄂尔多斯盆地镇泾地区中生界油气成藏条件分析[J].天然气勘探与开发,2007,30(2):21-25. [9] 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):365-370. [10] 王新民,郭彦如,付金华.鄂尔多斯盆地延长组长8段相对高孔渗砂岩储集层的控制因素分析[J].石油勘探与开发,2005,32(2):35-38. [11] 张晓莉,谢正温.鄂尔多斯盆地陇东地区三叠系延长组长8储层特征[J].矿物岩石,2006,26(4):83-88. [12] 程启贵,郭少斌,王海红,等.鄂尔多斯盆地中西部长6油层组储层综合评价[J].石油实验地质,2010,32(5):415-419. [13] 付广,陈章明,姜振学.盖层物性封闭能力的研究方法[J].中国海上油气(地质),1995(2):83-88. [14] 黄志龙,郝石生.盖层突破压力及排替压力的求取方法[J].新疆石油地质,1994,15(2):163-166. [15] 郑朝阳,张文达,朱盘良.盖层类型及其对油气运移聚集的控制作用[J].石油与天然气地质,1996,17(2):96-101. [16] 周文,苏复义,戴建文.鄂尔多斯盆地曙光地区延长组低丰度油藏成藏机理[J].石油与天然气地质,2009,30(3):330-337. [17] Zhao Mengwei,Behr H J,Ahrendt H,et al.Thermal and tectonic history of the Ordos Basin,China:evidence from apitite fission track analysis,vitrinite reflectance and K-Ar dating [J].AAPG Bulletin,1996,80(7):1110-1134. [18] 任战利,张盛,高胜利,等.鄂尔多斯盆地构造热演化史及其成藏成矿意义[J].中国科学D辑:地球科学,2007,37(S1):23-32. [19] 邸领军,张东阳,王宏科.鄂尔多斯盆地喜山期构造运动与油气成藏[J].石油学报,2003,24(2):34-37. -
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