东营凹陷陈南断层构造正反转及其油气成藏关系
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摘要
济阳拗陷正反转构造存在与否一直存在争议.以东营凹陷陈南断层为例,通过地震资料及录、测井资料分析证实了陈南断层东营期末正反构造的存在,并进一步对陈南断层的反转特征、反转选择性及其与油气成藏关系进行了研究.结果表明:陈南断层反转区段按其走向分为3段,反转构造样式存在单一型和取直型;陈南断层反转强度因数平均为1.25,多数区段完全反转,北北西走向段反转强度最大;构造正反转对先存断层具有选择性,在相同的应力条件下,边界控盆断层优先发生反转,而反转断层是否发生取值则与先存断层倾角有关.陈南断层的反转时期与生烃高峰期的有效匹配及构造反转形成的良好圈闭环境为油气运移、聚集提供了有利条件.
It has long been debated whether positive inversion tectonics in the Jiyang Depression exists or not. Taking Chennan Fault in Dongying Sag as an example,the positive inversion tectonic of Chennan Fault in the late stage of Dongying is confirmed by the analysis of the seismic data and the drilling and logging data,and then the inversion characteristics,the selection of inversion and the relationship between tectonic positive inversion and hydrocarbon accumulation were systematically studied. The result shows the inversion section of Chennan Fault can be divided into three sections and the inversion tectonic styles takes the forms of single pattern and short cut pattern. The average value of inversion intensity coefficient is 1.25 and most of the section completely reversed in the late stage of Dongying. The inversion intensity of NNW-trending section is the greatest. Tectonics positive inversion is selective to the former fault. In the same stress condition,basin-controlling border fault is prior to invert and the form of short cut pattern is relevant to the fault dip angle. The effective collocation between the inversion time and peak hydrocarbon generating stage and the favorable trap formed by tectonic positive inversion benefit the hydrocarbon migration and accumulation.
It has long been debated whether positive inversion tectonics in the Jiyang Depression exists or not. Taking Chennan Fault in Dongying Sag as an example,the positive inversion tectonic of Chennan Fault in the late stage of Dongying is confirmed by the analysis of the seismic data and the drilling and logging data,and then the inversion characteristics,the selection of inversion and the relationship between tectonic positive inversion and hydrocarbon accumulation were systematically studied. The result shows the inversion section of Chennan Fault can be divided into three sections and the inversion tectonic styles takes the forms of single pattern and short cut pattern. The average value of inversion intensity coefficient is 1.25 and most of the section completely reversed in the late stage of Dongying. The inversion intensity of NNW-trending section is the greatest. Tectonics positive inversion is selective to the former fault. In the same stress condition,basin-controlling border fault is prior to invert and the form of short cut pattern is relevant to the fault dip angle. The effective collocation between the inversion time and peak hydrocarbon generating stage and the favorable trap formed by tectonic positive inversion benefit the hydrocarbon migration and accumulation.
引文
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[28]褚庆忠.含油气盆地反转构造研究综述[J].西安石油大学学报,2004,19(1):28-33.
[29]刘新月,常波涛,孙连浦,等.反转构造的反转程度及其与油气聚集的关系[J].油气地质与采收率,2006,13(2):53-56.
[2]陈昭年,陈发景.反转构造与油气圈闭[J].地学前缘,1995,2(3):96-99.
[3]王同和,蔡希源,汪泽成,等.中国含油气区反转构造[M].北京:石油工业出版社,2001:1-15.
[4]李斌,陈兰.略论拉张盆地内的正反转构造[J].华南地质与矿产,2001(3):57-61.
[5]谭明友,邴进营,金学新,等.山东北部滨海地区负反转断层及古生界负反转结构成因分析[J].石油地球物理勘探,1996,31(6):25-34.
[6]陈洁,董冬,邱明文.济阳拗陷内的负反转构造及其石油地质意义[J].石油实验地质,1999,21(3):201-206.
[7]吴智平,李伟,任拥军.济阳拗陷中生代盆地演化及其与新生代盆地叠合关系探讨[J].地质学报,2003,77(2):280-286.
[8]史卜庆,吴智平,王纪祥,等.渤海湾盆地东营运动的特征及成因分析[J].石油实验地质,1999,21(3):196-200.
[9]宗国洪,肖焕钦,李常宝,等.济阳拗陷构造演化及其大地构造意义[J].高校地质学报,1999,5(3):275-282.
[10]漆家福,陆克政,张一伟,等.渤海湾盆地新生代构造演化[J].石油大学学报:自然科学版,1995,19(增刊):1-6.
[11]肖焕钦,陈广军,李长宝.济阳拗陷盆地拉张量及其石油地质意义[J].石油实验地质,2002,24(1):13-18.
[12]郝雪峰,宗国洪,李传华,等.济阳拗陷正反转构造初步分析[J].油气地质与采收率,2001,8(3):8-10.
[13]张鹏,王良书,丁增勇,等.济阳拗陷中-新生代断裂发育特征及形成机制[J].石油与天然气地质,2006,27(4):467-474.
[14]张升平,吕宝凤,夏斌,等.东营凹陷新生代构造转型及其控油意义[J].大地构造与成矿学,2007,31(3):281-287.
[15]郑德顺,吴智平,李伟,等.济阳拗陷中、新生代盆地转型期断裂特征及其对盆地的控制作用[J].地质学报,2005,79(3):387-393.
[16]衣学磊,侯贵廷.济阳拗陷中、新生代断裂活动强度研究[J].北京大学学报:自然科学版,2002,38(4):504-509.
[17]漆家福,肖焕钦,张卫刚.东营凹陷主干边界断层(带)构造几何学、运动学特征及成因解释[J].石油勘探与开发,2003,30(3):8-12.
[18]Williams G D,Powell C M.Geometry and kinematics of inversiontectonics[C]∥Cooper MA,Wi1liams GD,eds.Inversion Tecton-ics,London:Geological Society Special Publication,1989.
[19]褚庆忠,王长江.略论反转构造的识别及研究方法[J].新疆石油学院学报,2003,15(2):4-8.
[20]褚庆忠,王长江.含油气盆地反转构造与含油气关系研究综述[J].天然气勘探与开发,2003,26(2):69-76.
[21]汤良杰,金之钧.负反转断裂主反转期和反转强度分析[J].石油大学学报:自然科学版,1999,23(6):1-5.
[22]汤良杰,金之钧.塔里木盆地北部隆起牙哈断裂带负反转过程与油气聚焦[J].沉积学报,2000,18(2):302-309.
[23]吴时国,余朝华,邹东波,等.莱州湾地区郯庐断裂带的构造特征及其新生代演化[J].海洋地质与第四纪地质,2006,26(6):101-110.
[24]Wu S G,Yu Z H,Zhang R Q,et al.Mesozoic-Cenozoic tectonic evolution of the Zhuanghai area,Bohai-Bay Basin,east China:ap-plication of balanced cross-sections[J].Journal of Geophysics and Engineering,2005,2:158-168.
[25]朱光,王道轩,刘国生,等.郯庐断裂带的演化及其对西太平洋板块运动的响应[J].地质科学,2004,39(1):36-49.
[26]王小凤,李中坚,陈柏林,等.郯庐断裂带[M].北京:地质出版社,2001:15-59.
[27]万天丰.山东省构造演化与应力场[J].山东地质,1992,8(2):70-101.
[28]褚庆忠.含油气盆地反转构造研究综述[J].西安石油大学学报,2004,19(1):28-33.
[29]刘新月,常波涛,孙连浦,等.反转构造的反转程度及其与油气聚集的关系[J].油气地质与采收率,2006,13(2):53-56.
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