敖包塔油田西翼葡萄花油层油水分布及成藏模式
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摘要
敖包塔油田西翼葡萄花油层资源潜力丰富,但油水分布复杂、成藏模式认识不清楚严重制约储量的有效动用.结合地震解释、测井、试油等资料,在构造特征及断裂系统划分、砂体类型及规模研究基础上,分析油水分布特点及控制因素,总结油气成藏条件及模式,根据断裂与砂体组合关系划分有利成藏模式.结果表明:受局部断块、岩性双重控制,全区无统一油水界面,平面"低油高水"、垂向"上水下油"现象频繁;葡萄花油层属于"下生上储、断层沟通、断层—岩性遮挡"成藏模式,油气来自下覆青一段源岩,反转期活动断裂为主要油源断裂;根据该区断裂、砂体组合特点,可细分出"下倾油源断裂沟通—上倾岩性尖灭"、"上倾反向断裂遮挡—侧向岩性尖灭"和"局部正向构造—高断块控藏"3类有利成藏模式.
The west wing blank area of Aobaota oilfield has a rich oil resource potential,in which it is not effective to explore the reserves because of complex oil-water distribution and unclear hydrocarbon accumulation model.Combining with the seismic interpretation,logging and testing,based on the research of tectonic characteristics,fault division,and sand body type and size,analyzing the distribution characteristics and controlling factors of oil-water,analyzing hydrocarbon accumulation conditions and model,the favorable hydrocarbon accumulation pattern was summarized with the combination of the fault and sand body.In the controlling of both structure and lithology,there is not a unified oil-water interface in Putaohua reservoir,the phenomenon of"water high-oil low"in the plane and vertical"water upper-oil lower"was mainly distributed.The Putaohua reservoir was of assemblage type of"upper reservoirs and lower source rocks,oil vertical migration along the faults,and oil accumulation in fault-screened and sandstone wedge out traps":the oil of Putaohua reservoir mainly comes from the local hydrocarbon source rock of K1qn1,faults active in inversion period are the main oil-migrating faults.Based on the spatial combination between fault and sand body,three kinds of favorable oil accumulation models fit to this area.They are the model of oil-migrating fault in the downward direction and sandstone wedge out trap in the upward direction,the model of inversed fault screened in the upward direction and sandstone lap out in both sides,the model of oil accumulation in higher fault blocks and positive structure.
The west wing blank area of Aobaota oilfield has a rich oil resource potential,in which it is not effective to explore the reserves because of complex oil-water distribution and unclear hydrocarbon accumulation model.Combining with the seismic interpretation,logging and testing,based on the research of tectonic characteristics,fault division,and sand body type and size,analyzing the distribution characteristics and controlling factors of oil-water,analyzing hydrocarbon accumulation conditions and model,the favorable hydrocarbon accumulation pattern was summarized with the combination of the fault and sand body.In the controlling of both structure and lithology,there is not a unified oil-water interface in Putaohua reservoir,the phenomenon of"water high-oil low"in the plane and vertical"water upper-oil lower"was mainly distributed.The Putaohua reservoir was of assemblage type of"upper reservoirs and lower source rocks,oil vertical migration along the faults,and oil accumulation in fault-screened and sandstone wedge out traps":the oil of Putaohua reservoir mainly comes from the local hydrocarbon source rock of K1qn1,faults active in inversion period are the main oil-migrating faults.Based on the spatial combination between fault and sand body,three kinds of favorable oil accumulation models fit to this area.They are the model of oil-migrating fault in the downward direction and sandstone wedge out trap in the upward direction,the model of inversed fault screened in the upward direction and sandstone lap out in both sides,the model of oil accumulation in higher fault blocks and positive structure.
引文
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[11]付晓飞,平贵东,范瑞东,等.三肇凹陷扶杨油层油气“倒灌”运聚成藏规律研究[J].沉积学报,2009,27(3):558-565.Fu Xiaofei,Ping Guidong,Fan Ruidong,et al.Research on migration and accumulation mechanism of hydrocarbon"reversed migration"in Fuyu and Yangdachengzi formation in Sanzhao depression[J].Acta Sedmentologica Sinica,2009,27(3):558-565.
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[16]楼章华,袁笛,金爱民.松辽盆地北部浅水三角洲前缘砂体类型、特征与沉积动力学过程分析[J].浙江大学学报:理学版,2004,31(2):211-215.Lou Zhanghua,Yuan Di,Jin Aimin.Types and characteristics of sandbodies in shallow-water deltafront and sedimentary models in northern Songliao basin,China[J].Journal of Zhejiang University:Science Edition,2004,31(2):211-215.
[17]侯启军,冯志强,冯子辉.松辽盆地陆相石油地质学[M].北京:石油工业出版社,2009:460-484.Hou Qijun,Feng Zhiqiang,Feng Zihui.Continental petroleum geology of Songliao basin[M].Beijing:Petroleum Industry Press,2009:460-484.
[18]付秀丽,庞雄奇.松辽盆地北部青一段烃源岩排烃特征研究[J].石油天然气学报,2008,30(1):162-169.Fu Xiuli,Pang Xiongqi.Hydrocarbon-expulsion characteristics from formation K2qn1of northern Songliao basin[J].Journal of Oil and Gas Technology,2008,30(1):162-169.
[19]陈骁,李忠权,陈均亮,等.松辽盆地反转期的界定[J].地质通报,2010,29(2-3):305-311.Chen Xiao,Li Zhongquan,Che Junliang,et al.Determination of the reverse period of Songliao basin,China[J].Geological Bulletin of China,2010,29(2-3):305-311.
[2]黄薇,张顺,梁江平,等.松辽盆地沉积地层与成藏响应[J].大庆石油地质与开发,2009,28(5):18-22.Huang Wei,Zhang Shun,Liang Jiangping,et al.Sedimentary strata accumulation response in Songliao basin[J].Petroleum Geology&Oilfield Development in Daqing,2009,28(5):18-22.
[3]冯志强,张顺,付秀丽.松辽盆地姚家组—嫩江组沉积演化与成藏响应[J].地学前缘,2012,19(1):78-88.Feng Zhiqing,Zhang Shun,Fu Xiuli.Depositional evolution and accumulation response of Yaojia-Nenjiang formation in Songliao basin[J].Earth Science Frontiers,2012,19(1):78-88.
[4]赵文智,邹才能,汪泽成,等.富油气凹陷“满凹含油”论—内涵与意义[J].石油勘探与开发,2004,31(2):5-13.Zhao Wenzhi,Zou Caineng,Wang Zecheng,et al.The intension and signification of"Sag-wide Oil-Bearing Theory"in the hydrocarbon-rich depression with terrestrial origin[J].Petroleum Exploration and Development,2004,31(2):5-13.
[5]迟元林,蒙启安,杨玉峰.松辽盆地岩性油藏形成背景与成藏条件分析[J].大庆石油地质与开发,2004,23(5):10-15.Chi Yuanlin,Meng Qian,Yang Yufeng.Origin background and reservoir forming condition of lithologic oil pools in Songliao basin[J].Petroleum Geology&Oilfield Development in Daqing,2004,23(5):10-15.
[6]席国兴.松辽盆地三肇凹陷葡萄花油层成藏规律[J].大庆石油地质与开发,2012,31(6):11-14.Xi Guoxing.Reservoiring pattern of Putaohua oil layer in Sanzhao sag of Songliao basin[J].Petroleum Geology&Oilfield Development in Daqing,2012,31(6):11-14.
[7]吴河勇,梁晓东,向才富.松辽盆地向斜油藏特征及成藏机理探讨[J].中国科学:D辑,2007,37(2):185-191.Wu Heyong,Liang Xiaodong,Xiang Caifu.Characters of petroleum accumulation in syncline of Songliao basin and discussion on its accumulation mechanism[J].Science in China:Series D,2007,37(2):185-191.
[8]刘宗堡,马世忠,吕延防,等.大型凹陷斜坡带油气成藏模式——以三肇凹陷葡萄花油层为例[J].吉林大学学报:地球科学版,2008,38(6):937-945.Liu Zongbao,Ma Shizhong,Lv Yanfang,et al.Hydrocarbon accumulation model of big depression ramp area-as Putaohua reservoir in the Sanzhao depression[J].Journal of Jilin University:Earth Science Edition,2008,38(6):937-945.
[9]付广,雷琳.油源区内外断裂控藏作用差异性研究——以松辽盆地三肇凹陷和长10区块扶余—杨大城子油层为例[J].地质论评,2010,56(5):719-725.Fu Guang,Lei Lin.Research on differences of controlling of fault to oil accumulation in and outside oil source area-an example of FuyuYangdachengzi oil layers in Sanzhao depression and Chang10block,Songliao basin[J].Geological Review,2010,56(5):719-725.
[10]张立含,王旭,刘心宇,等.断裂在斜坡区油聚集中的作用——以松辽盆地太东地区葡萄花油层为例[J].大庆石油学院学报,2012,36(2),36-39.Zhang Lihan,Wang Xu,Liu Xinyu,et al.Effect of faults on oil accumulation in slope region-an example from P oil layer in Taidong region[J].Journal of Daqing Petroleum Institute,2012,36(2):36-39.
[11]付晓飞,平贵东,范瑞东,等.三肇凹陷扶杨油层油气“倒灌”运聚成藏规律研究[J].沉积学报,2009,27(3):558-565.Fu Xiaofei,Ping Guidong,Fan Ruidong,et al.Research on migration and accumulation mechanism of hydrocarbon"reversed migration"in Fuyu and Yangdachengzi formation in Sanzhao depression[J].Acta Sedmentologica Sinica,2009,27(3):558-565.
[12]张雷,卢双舫,张学娟,等.松辽盆地三肇地区扶杨油层油气成藏过程主控因素及成藏模式[J].吉林大学学报:地球科学版,2010,40(3):492-501.Zhang Lei,Lu Shuangfang,Zhang Xuejuan,et al.Controlling factors and accumulation model of hydrocarbon accumulation of the Fuyang oil units in Sanzhao region of the Songliao basin[J].Journal of Jilin University:Earth Science Edition,2010,40(3):492-501.
[13]于利民,马世忠,孙雨,等.榆树林葡萄花油层油气富集规律主控因素[J].大庆石油学院学报,2009,33(1):1-4.Yu Limin,Ma Shizhong,Sun Yu,et al.Main factors controlling oil-gas enrichment regularities of Putaohua oil layer in Yushulin[J].Journalof Daqing Petroleum Institute,2009,33(1):1-4.
[14]张文起,车廷信,王长生,等.松辽盆地葡萄花油田北部鞍部地区成藏控制因素分析[J].现代地质,2008,22(4):599-605.Zhang Wenqi,Che Yanxin,Wang Changsheng,et al.Controlling factors on hydrocarbon accumulation in the saddle of northern Putaohua oilfield,Songliao basin[J].Geoscience,2008,22(4):599-605.
[15]徐海霞,刘大锰,曾翔宇.葡北鞍部地区断层封闭性演化及其对成藏的控制作用[J].石油天然气学报,2008,30(1):32-35.Xu Haixia,Liu Dameng,Zeng Xiangyu.Fault-sealing evolution and its controlling factor on hydrocarbon accumulation in arch bend of north Putaohua oilfield[J].Journal of Oil and Gas Technology,2008,30(1):32-35.
[16]楼章华,袁笛,金爱民.松辽盆地北部浅水三角洲前缘砂体类型、特征与沉积动力学过程分析[J].浙江大学学报:理学版,2004,31(2):211-215.Lou Zhanghua,Yuan Di,Jin Aimin.Types and characteristics of sandbodies in shallow-water deltafront and sedimentary models in northern Songliao basin,China[J].Journal of Zhejiang University:Science Edition,2004,31(2):211-215.
[17]侯启军,冯志强,冯子辉.松辽盆地陆相石油地质学[M].北京:石油工业出版社,2009:460-484.Hou Qijun,Feng Zhiqiang,Feng Zihui.Continental petroleum geology of Songliao basin[M].Beijing:Petroleum Industry Press,2009:460-484.
[18]付秀丽,庞雄奇.松辽盆地北部青一段烃源岩排烃特征研究[J].石油天然气学报,2008,30(1):162-169.Fu Xiuli,Pang Xiongqi.Hydrocarbon-expulsion characteristics from formation K2qn1of northern Songliao basin[J].Journal of Oil and Gas Technology,2008,30(1):162-169.
[19]陈骁,李忠权,陈均亮,等.松辽盆地反转期的界定[J].地质通报,2010,29(2-3):305-311.Chen Xiao,Li Zhongquan,Che Junliang,et al.Determination of the reverse period of Songliao basin,China[J].Geological Bulletin of China,2010,29(2-3):305-311.
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