东营凹陷营26断层调节带特征及其对油气分布的控制作用
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摘要
为揭示复杂断块油田小型断层调节带的特征并明确其对油气分布的控制作用,笔者利用高精度三维地震资料结合油田地质资料分析了营26块内断层的几何学、运动学和动力学特征,认为其为近东西向展布的对向叠覆—同向叠覆复合型断层调节带。西侧主断层(营1断层)与调节断层在剖面上呈多级反"Y"字形组合样式,东侧主断层(营8断层、营31断层)与调节断层为包心菜状组合;营1断层活动性减弱时,将位移量传递给营8断层、营31断层和调节断层,使区域位移有规律变化;通过力学分析认为营26北部断层调节带是在左旋张扭构造应力场作用下形成的,营26南部断层调节带是在右旋张扭构造应力场作用下形成的。结合营26块油气分布、油气来源及断裂活动性与封闭性研究,阐明了主断层沟通烃源灶和储集层,成为油源断层;调节断层停止活动时间早,封闭性好形成断块圈闭,是遮挡断层;建立了营26断层调节带油气成藏模式,预测营13井、营24井和营26井附近为有利滚动勘探开发区。
To reveal the characteristics of the fault accommodation zone and interpret its control effects on hydrocarbon distribution in the complex fault block oilfield,the authors conducted the study of faults geometry,kinematics and dynamics in Ying 26 block using 3D high-precision seismic data together with oil field geological data,and discovered that it is a typical EW-striking convergent-overlapping and synthetic-overlapping compound fault accommodation zone.The section structural patterns of the west-side major fault(Ying 1 fault) and adjustment faults are of the multiple-stage reverse Y style,and the east-side major faults(Ying 8 fault,Ying 31 fault) and adjustment faults are of the cabbage-appearance style.When the activity of Ying 1 fault became weak,the displacement accommodated Ying 8 fault,Ying 31 fault and adjustment faults,which made the total throw change regularly.The stress field of Ying 26 accommodation zone was complex: the northern part was left-lateral extension-tensional and the southern part was right-lateral extension-tensional.Through the analysis of distribution and source of Ying 26 block structure,characteristics of fault activities and fault sealing properties,the authors recognized the accumulation model of Ying 26 fault accommodation zone.The major fault was an oil source fault which connected the source kitchen and the reservoir,and hydrocarbon migrated during the main hydrocarbon accumulation period,whereas adjustment faults stopped activities in the earlier period,formed fault traps,and became barrier faults.The authors have constructed the reservoir forming model of Ying 26 fault accommodation zone,and pointed out that Ying 13 well,Ying 24 well and Ying 26 well areas are areas favorable for progressive exploration and development.
To reveal the characteristics of the fault accommodation zone and interpret its control effects on hydrocarbon distribution in the complex fault block oilfield,the authors conducted the study of faults geometry,kinematics and dynamics in Ying 26 block using 3D high-precision seismic data together with oil field geological data,and discovered that it is a typical EW-striking convergent-overlapping and synthetic-overlapping compound fault accommodation zone.The section structural patterns of the west-side major fault(Ying 1 fault) and adjustment faults are of the multiple-stage reverse Y style,and the east-side major faults(Ying 8 fault,Ying 31 fault) and adjustment faults are of the cabbage-appearance style.When the activity of Ying 1 fault became weak,the displacement accommodated Ying 8 fault,Ying 31 fault and adjustment faults,which made the total throw change regularly.The stress field of Ying 26 accommodation zone was complex: the northern part was left-lateral extension-tensional and the southern part was right-lateral extension-tensional.Through the analysis of distribution and source of Ying 26 block structure,characteristics of fault activities and fault sealing properties,the authors recognized the accumulation model of Ying 26 fault accommodation zone.The major fault was an oil source fault which connected the source kitchen and the reservoir,and hydrocarbon migrated during the main hydrocarbon accumulation period,whereas adjustment faults stopped activities in the earlier period,formed fault traps,and became barrier faults.The authors have constructed the reservoir forming model of Ying 26 fault accommodation zone,and pointed out that Ying 13 well,Ying 24 well and Ying 26 well areas are areas favorable for progressive exploration and development.
引文
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[11]田飞,金强,王端平,等.东营凹陷永8断块断层调节带及其对油气分布的控制作用[J].高校地质学报,2012,18(2):358-364.Tian Fei,Jin Qiang,Wang Duanping,et al.Fault Accommodationzones and their controling effects on hydrocarbon distribution inYong 8 Fault Block,Dongying Sag[J].Geological Journal of ChinaUniversities,2012,18(2):358-364(in Chinese with English abstract).
[12]王端平,柳强.复杂断块油田精细油藏描述[J].石油学报,2000,21(6):111-116.Wang Duanping,Liu Qiang.Fine reservoir description of complexfault block reservoir[J].Acta Petrolei Sinica,2000,21(6):111-116(in Chinese with English abstract).
[13]朱光有,金强,戴金星,等.东营凹陷油气成藏期次及其分布规律研究[J].石油与天然气地质,2004,25(2):209-215.Zhu Guangyou,Jin Qiang,Dai Jinxing,et al.A study on Periodsof hydrocarbon accumulation and distribution pattern of oil and gaspools in Dongying Depression[J].Oil&Gas Geology,2004,25(2):209-215(in Chinese with English abstract).
[14]孙思敏,黄述旺,彭仕宓,等.东辛油田营13断块区调节带特征及成因探讨[J].中国海上油气,2005,17(4):225-227.Sun Simin,Huang Shuwang,Peng Shimi,et al.A discussion oncharacteristics and origin of an accommodation zone in Ying 13Fault-Block,Dongxin Oilfield[J].China Offshore Oil and Gas,2005,17(4):225-227(in Chinese with English abstract).
[15]Morley C K.Developments in the structural geology of rifts overthe last decade and their impact on hydrocarbon exploration[J].Structural Geology of Rifts,1995,80(1):1-32.
[16]Sun S M,Wu X S,Liu H T,et al.Genetic models of structuraltraps related to normal faults in the Putaohua Oilfield,SongliaoBasin[J].Petroleum Science,2008,5:302-307.
[17]Elena A K,Lyal B H,Jimmy P,et al.Transfer zones and faultreactivation in inverted rift basins:Insights from physical modeling[J].Tectonophysics,2007,80(1):1-26.
[18]余一欣,周心怀,汤良杰,等.渤海海域辽东湾坳陷正断层联接及其转换带特征[J].地质论评,2009,55(1):79-84.Yu Yixin,Zhou Xinhuai,Tang Liangjie,et al.Linkages of normalfaults and transfer zones in the Liaodongwan Depression,offshoreBohai Bay Basin[J].Geological Review,2009,55(1):79-84(inChinese with English abstract).
[19]陈刚,戴俊生,叶兴树,等.生长指数与断层落差的对比研究[J].西南石油大学学报,2007,29(3):20-24.Chen Gang,Dai Junsheng,Ye Xingshu,et al.A comparison of the faultgrowth index with fault throw[J].Journal of Southwest PetroleumUniversity,2007,29(3):20-24(in Chinese with English abstract).
[20]杨明慧.渤海湾盆地变换构造特征及其成藏意义[J].石油学报,2009,30(6):816-823.Yang Minghui.Transfer structure and its relation to hydrocarbonexploration in Bohai Bay Basin[J].Acta Petrolei Sinica,2009,30(6):816-823(in Chinese with English abstract).
[21]宋明春,付广,郭忠文,等.断层垂向封闭性研究及应用实例[J].中国石油勘探,2003,8(2):55-59.Song Mingchun,Fu Guang,Guo Zhongwen,et al.A method studyingthe vertical sealing of fault and its application[J].China PetroleumExploration,2003,8(2):55-59(in Chinese with English abstract).
[22]赵贤正,金强,张亮,等.渤海湾盆地冀中坳陷北部石炭—二叠系煤成油气成藏条件及勘探前景[J].石油实验地质,2010,32(5):459-464.Zhao Xianzheng,Jin Qiang,Zhang Liang,et,al.Accumulationconditions and perspectives of coal-derived hydrocarbon ofCarboniferous-Permian in Northern Jizhong Depression,BohaiBay Basin[J].Petroleum Geology&Experimen,2010,32(5):459-464(in Chinese with English abstract).
[23]吕延防,黄劲松,付广,等.砂泥岩薄互层段中断层封闭性的定量研究[J].石油学报,2009,30(6):824-829.Lv Yanfang,Huang Jinsong,Fu Guang,et al.Quantitative study onfault sealing ability in sandstone and mudstone thin interbed[J].ActaPetrolei Sinica,2009,30(6):824-829(in Chinese with English abstract).
[24]徐建春,戴俊生.利用声发射研究东营凹陷新生代构造期次[J].地质力学学报,2004,10(2):172-178.Xu Jianchun,Dai Junsheng.Application of acoustic emission in thestudy of the number of Cenozoic tectonic phases in the DongyingSubbasin[J].Journal of Geomechanics,2004,10(2):172-178(inChinese with English abstract).
[25]史文东,彭尚谦,姜凤玖.东辛油田断层转换带与油气聚集[J].石油勘探与开发,2003,30(5):14-17.Shi Wendong,Peng Shangqian,Jiang Fengjiu.Relationshipbetween petroleum accumulation and transfer zone in DongxinOilfield[J].Petroleum Exploration and Development,2003,30(5):14-17(in Chinese with English abstract).
[2]Morley C K,Nelson R A,Patton T L.Transfer zones in the EastAfrican Rift system and their relevance to hydrocarbon explorationin rifts[J].AAPG,1990,74(8):1234-1253.
[3]Faulds J E,Varga R J.The role of accommodation zones andtransfer zones in the regional segmentation of extended terranes[G]//Faulds J E,Stewart J H.Accommodation Zones and TransferZones:The Regional Segmentation of the Basin and RangeProvinces.Boulder Colorado:The Geology Society of America,1998,323:1-45.
[4]Peacock D C P,Knipe R J,Sanderson D J.Glossary of normal faults[J].Journal of Structural Geology,2000,22(3):291-305.
[5]Jinbao Su,Wenbin Zhu,Jia Wei,et al.Fault growth and linkage:Implications for tectonosedimentary evolution in the Chezhen Basinof Bohai Bay,Eastern China[J].AAPG,2011,95(1):1-26.
[6]王家豪,王华,任建业,等.黄骅坳陷中区大型斜向变换带及其油气勘探意义[J].石油学报,2010,31(3):354-360.Wang Jiahao,Wang Hua,Ren Jianye,et al.A great obliquetransition zone in the central Huanghua Depression and itssignificance for petroleum exploration[J].Acta Petrolei Sinica,2010,31(3):354-360(in Chinese with English abstract).
[7]李宝刚.高邮凹陷断裂调节带发育特征及其石油地质意义[J].中国石油大学学报(自然科学版),2008,32(1):19-25.Li Baogang.Development characteristics of fault accommodation zoneand its significances of petroleum geology in Gaoyou depression[J].Journal of China University of Petroleum(Edition of Natural Science),2008,32(1):19-25(in Chinese with English abstract).
[8]王纪祥,陈发景,李趁义.山东惠民凹陷伸展构造及调节带特征[J].现代地质,2003,17(2):203-209.Wang Jixiang,Chen Fajing,Li Chenyi.Character of the extentionalstructures and accommodation zones in the Huimin Depression,Shandong Province[J].Geoscience,2003,17(2):203-209(inChinese with English abstract).
[9]陈书平,漆家福,王德仁,等.东濮凹陷断裂系统及变换构造[J].石油学报,2007,28(1):44-49.Chen Shuping,Qi Jiafu,Wang Deren,et al.Fault systems andtransfer structures in Dongpu Sag[J].Acta Petrolei Sinica,2007,28(1):44-49(in Chinese with English abstract).
[10]金强,王端平,何瑞武,等.小型断块油藏识别和描述石油学报[J].石油学报,2009,30(3):367-371.Jin Qiang,Wang Duanping,He Ruiwu,et al.Identification anddescription of small faulted-block reservoirs[J].Acta Petrolei Sinica,2009,30(3):367-371(in Chinese with English abstract).
[11]田飞,金强,王端平,等.东营凹陷永8断块断层调节带及其对油气分布的控制作用[J].高校地质学报,2012,18(2):358-364.Tian Fei,Jin Qiang,Wang Duanping,et al.Fault Accommodationzones and their controling effects on hydrocarbon distribution inYong 8 Fault Block,Dongying Sag[J].Geological Journal of ChinaUniversities,2012,18(2):358-364(in Chinese with English abstract).
[12]王端平,柳强.复杂断块油田精细油藏描述[J].石油学报,2000,21(6):111-116.Wang Duanping,Liu Qiang.Fine reservoir description of complexfault block reservoir[J].Acta Petrolei Sinica,2000,21(6):111-116(in Chinese with English abstract).
[13]朱光有,金强,戴金星,等.东营凹陷油气成藏期次及其分布规律研究[J].石油与天然气地质,2004,25(2):209-215.Zhu Guangyou,Jin Qiang,Dai Jinxing,et al.A study on Periodsof hydrocarbon accumulation and distribution pattern of oil and gaspools in Dongying Depression[J].Oil&Gas Geology,2004,25(2):209-215(in Chinese with English abstract).
[14]孙思敏,黄述旺,彭仕宓,等.东辛油田营13断块区调节带特征及成因探讨[J].中国海上油气,2005,17(4):225-227.Sun Simin,Huang Shuwang,Peng Shimi,et al.A discussion oncharacteristics and origin of an accommodation zone in Ying 13Fault-Block,Dongxin Oilfield[J].China Offshore Oil and Gas,2005,17(4):225-227(in Chinese with English abstract).
[15]Morley C K.Developments in the structural geology of rifts overthe last decade and their impact on hydrocarbon exploration[J].Structural Geology of Rifts,1995,80(1):1-32.
[16]Sun S M,Wu X S,Liu H T,et al.Genetic models of structuraltraps related to normal faults in the Putaohua Oilfield,SongliaoBasin[J].Petroleum Science,2008,5:302-307.
[17]Elena A K,Lyal B H,Jimmy P,et al.Transfer zones and faultreactivation in inverted rift basins:Insights from physical modeling[J].Tectonophysics,2007,80(1):1-26.
[18]余一欣,周心怀,汤良杰,等.渤海海域辽东湾坳陷正断层联接及其转换带特征[J].地质论评,2009,55(1):79-84.Yu Yixin,Zhou Xinhuai,Tang Liangjie,et al.Linkages of normalfaults and transfer zones in the Liaodongwan Depression,offshoreBohai Bay Basin[J].Geological Review,2009,55(1):79-84(inChinese with English abstract).
[19]陈刚,戴俊生,叶兴树,等.生长指数与断层落差的对比研究[J].西南石油大学学报,2007,29(3):20-24.Chen Gang,Dai Junsheng,Ye Xingshu,et al.A comparison of the faultgrowth index with fault throw[J].Journal of Southwest PetroleumUniversity,2007,29(3):20-24(in Chinese with English abstract).
[20]杨明慧.渤海湾盆地变换构造特征及其成藏意义[J].石油学报,2009,30(6):816-823.Yang Minghui.Transfer structure and its relation to hydrocarbonexploration in Bohai Bay Basin[J].Acta Petrolei Sinica,2009,30(6):816-823(in Chinese with English abstract).
[21]宋明春,付广,郭忠文,等.断层垂向封闭性研究及应用实例[J].中国石油勘探,2003,8(2):55-59.Song Mingchun,Fu Guang,Guo Zhongwen,et al.A method studyingthe vertical sealing of fault and its application[J].China PetroleumExploration,2003,8(2):55-59(in Chinese with English abstract).
[22]赵贤正,金强,张亮,等.渤海湾盆地冀中坳陷北部石炭—二叠系煤成油气成藏条件及勘探前景[J].石油实验地质,2010,32(5):459-464.Zhao Xianzheng,Jin Qiang,Zhang Liang,et,al.Accumulationconditions and perspectives of coal-derived hydrocarbon ofCarboniferous-Permian in Northern Jizhong Depression,BohaiBay Basin[J].Petroleum Geology&Experimen,2010,32(5):459-464(in Chinese with English abstract).
[23]吕延防,黄劲松,付广,等.砂泥岩薄互层段中断层封闭性的定量研究[J].石油学报,2009,30(6):824-829.Lv Yanfang,Huang Jinsong,Fu Guang,et al.Quantitative study onfault sealing ability in sandstone and mudstone thin interbed[J].ActaPetrolei Sinica,2009,30(6):824-829(in Chinese with English abstract).
[24]徐建春,戴俊生.利用声发射研究东营凹陷新生代构造期次[J].地质力学学报,2004,10(2):172-178.Xu Jianchun,Dai Junsheng.Application of acoustic emission in thestudy of the number of Cenozoic tectonic phases in the DongyingSubbasin[J].Journal of Geomechanics,2004,10(2):172-178(inChinese with English abstract).
[25]史文东,彭尚谦,姜凤玖.东辛油田断层转换带与油气聚集[J].石油勘探与开发,2003,30(5):14-17.Shi Wendong,Peng Shangqian,Jiang Fengjiu.Relationshipbetween petroleum accumulation and transfer zone in DongxinOilfield[J].Petroleum Exploration and Development,2003,30(5):14-17(in Chinese with English abstract).
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