永安镇地区断层特征及其与油气成藏的关系
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摘要
永安镇地区油藏丰富,断层不仅控制着构造带的形成,而且对油气的运聚成藏也起到非常关键的作用。在对大量地震及岩心资料研究的基础上,对主干断层的发育特征进行了分析;并结合断层活动速率及断层不同部位在不同地质时期封闭性的模糊综合评价,对主干断层不同部位的油气输导能力进行分析,明确研究区断层与油气成藏的关系。结果表明,永3断层东段和永41断层东段的活动时期与生、排烃期相匹配,但封闭性好,不利于油气的侧向输导;永3断层西段、永41断层西段及永67断层的活动持续时间长,与生、排烃期具有良好的匹配关系,且封闭性差,可以为油气的侧向运移提供运移通道,是研究区油气成藏的有利地区。主干断层的组合方式及其输导性和封闭性的差异使研究区油气藏的分布层位由南向北依次变浅,形成了阶梯状的油气成藏模式。
In oil-rich Yongan area, the faults have not only controlled the forming of structure belt, but also played an important role in hydrocarbon migration and accumulation. Based on abundant seismic data and lithology materials, this paper analyzed the feature of major faults. In addition, by combining with fault activity rate analysis and fuzzy comprehensive sealing evaluation in different places of the main faults, the transporting capacity of the main faults in different places is analyzed and the hydrocarbon accumulation regularity is summarized. The results show that east section of Yong3 fault and Yong41 fault, whose activity matches well with the hydrocarbon generation and expulsion periods, but the good sealing property is against the migration of hydrocarbon. The west section of Yong3 fault and Yong41 fault, Yong67 fault which have long active time and match well with the hydrocarbon generation and expulsion periods, and the sealing is poor and making hydrocarbon migration possible, so it is the key regions of reservoir formation. Besides, the three parallel aligned main faults make the reservoir formed in step in the study area, and making the hydrocarbon distribution become shallow gradually from south to north.
In oil-rich Yongan area, the faults have not only controlled the forming of structure belt, but also played an important role in hydrocarbon migration and accumulation. Based on abundant seismic data and lithology materials, this paper analyzed the feature of major faults. In addition, by combining with fault activity rate analysis and fuzzy comprehensive sealing evaluation in different places of the main faults, the transporting capacity of the main faults in different places is analyzed and the hydrocarbon accumulation regularity is summarized. The results show that east section of Yong3 fault and Yong41 fault, whose activity matches well with the hydrocarbon generation and expulsion periods, but the good sealing property is against the migration of hydrocarbon. The west section of Yong3 fault and Yong41 fault, Yong67 fault which have long active time and match well with the hydrocarbon generation and expulsion periods, and the sealing is poor and making hydrocarbon migration possible, so it is the key regions of reservoir formation. Besides, the three parallel aligned main faults make the reservoir formed in step in the study area, and making the hydrocarbon distribution become shallow gradually from south to north.
引文
[1]陈清华,吴孔友,王绍兰.永安镇油田构造特征[J].石油大学学报:自然科学版,1998,22(5):23-25.
[2]邱桂强,王勇,熊伟,等.济阳坳陷新生代盆地结构差异性研究[J].油气地质与采收率,2011,18(6):1-5.
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[6]贾容.东营凹陷永安镇地区输导体系构成与控藏作用[J].天然气地球科学,2007,18(3):399-402.
[7]尹丽娟.济阳坳陷古近系—新近系泥质岩盖层及其与油气的关系[J].油气地质与采收率,2012,19(2):12-15.
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[9]杨勇.东营凹陷永安镇油田永3断块沙二段进积三角洲沉积体系[J].油气地质与采收率,2009,16(2):27-29.
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[11]王端平,杨勇,牛栓文,等.东辛复杂断块油藏层块分类评价方法与调整对策[J].油气地质与采收率,2012,19(5):84-87.
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[14]张立强,杨晚,侯冠群.东营凹陷永82井沙四段紫红色泥岩特征及其在层序划分中的应用[J].油气地质与采收率,2012,19(5):43-46,53.
[15]王真,孙强.永安气藏开发规律及剩余气分布研究[J].断块油气田,2005,12(2):44-45.
[16]付晓飞,方德庆,吕延防,等.从断裂带内部结构出发评价断层垂向封闭性的方法[J].地球科学——中国地质大学学报,2005,30(3):328-336.
[17]吕延防,沙子萱,付晓飞,等.断层垂向封闭性定量评价方法及其应用[J].石油学报,2007,28(5):34-38.
[18]张娟.西湖凹陷平湖油气田断层封闭性评价[J].油气地质与采收率,2012,19(4):18-20.
[19]王来斌,徐怀民.断层封闭性的研究进展[J].新疆石油学院学报,2003,15(1):11-14.
[20]赵密福,信荃麟,李亚辉,等.断层封闭性的研究进展[J].新疆石油地质,2001,22(3):258-261.
[21]吕延防,王帅.断层封闭性定量评价[J].大庆石油学院学报,2010,34(5):35-41.
[22]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):34-42.
[23]吕延防,马福建.断层封闭性影响因素及类型划分[J].吉林大学学报:地球科学版,2003,33(2):163-166.
[24]罗群.断裂带的输导与封闭性及其控藏特征[J].石油实验地质,2011,33(5):474-479.
[25]陆友明,牛瑞卿.封闭性断层形成机理及研究方法[J].天然气地球科学,1999,10(5):12-16.
[26]陈伟,吴智平,侯峰.临南洼陷临商断裂带与油气成藏的关系[J].油气地质与采收率,2010,17(2):25-28.
[27]付广,刘洪霞,段海风.断层不同输导通道封闭机理及其研究方法[J].石油实验地质,2005,27(4):404-407.
[28]杨勇,邱贻博,查明.用模糊综合评判方法研究断层封闭性——以高邮凹陷陈堡地区为例[J].新疆石油地质,2005,26(1):102-104.
[2]邱桂强,王勇,熊伟,等.济阳坳陷新生代盆地结构差异性研究[J].油气地质与采收率,2011,18(6):1-5.
[3]杨显成,刘利.东营凹陷坨-胜-永断裂带天然气成藏条件及富集规律[J].中国海上油气:地质,2003,17(2):84-88.
[4]卢浩,蒋有录,薄冬梅,等.东营凹陷永安镇—盐家地区油源特征分析[J].油气地质与采收率,2008,15(6):39-42.
[5]韩连滨,蒋有录.东营凹陷永安镇地区断裂特征与油气运移[J].断块油气田,2010,17(1):38-41.
[6]贾容.东营凹陷永安镇地区输导体系构成与控藏作用[J].天然气地球科学,2007,18(3):399-402.
[7]尹丽娟.济阳坳陷古近系—新近系泥质岩盖层及其与油气的关系[J].油气地质与采收率,2012,19(2):12-15.
[8]刘利.东营凹陷永安镇断裂带气藏成藏规律研究[J].特种油气藏,2006,13(2):29-32.
[9]杨勇.东营凹陷永安镇油田永3断块沙二段进积三角洲沉积体系[J].油气地质与采收率,2009,16(2):27-29.
[10]陈清华,王绍兰.永安镇油田构造沉积特征与油气关系[J].岩相古地理,1998,18(3):14-20.
[11]王端平,杨勇,牛栓文,等.东辛复杂断块油藏层块分类评价方法与调整对策[J].油气地质与采收率,2012,19(5):84-87.
[12]袁静,袁炳存.永安镇地区永1砾岩体储层微观特征[J].石油大学学报:自然科学版,1999,23(1):13-16.
[13]蒋有录,刘振,史文东,等.永安镇油气田成藏地质条件与油气富集规律[J].石油大学学报:自然科学版,1995,19(6):16-20.
[14]张立强,杨晚,侯冠群.东营凹陷永82井沙四段紫红色泥岩特征及其在层序划分中的应用[J].油气地质与采收率,2012,19(5):43-46,53.
[15]王真,孙强.永安气藏开发规律及剩余气分布研究[J].断块油气田,2005,12(2):44-45.
[16]付晓飞,方德庆,吕延防,等.从断裂带内部结构出发评价断层垂向封闭性的方法[J].地球科学——中国地质大学学报,2005,30(3):328-336.
[17]吕延防,沙子萱,付晓飞,等.断层垂向封闭性定量评价方法及其应用[J].石油学报,2007,28(5):34-38.
[18]张娟.西湖凹陷平湖油气田断层封闭性评价[J].油气地质与采收率,2012,19(4):18-20.
[19]王来斌,徐怀民.断层封闭性的研究进展[J].新疆石油学院学报,2003,15(1):11-14.
[20]赵密福,信荃麟,李亚辉,等.断层封闭性的研究进展[J].新疆石油地质,2001,22(3):258-261.
[21]吕延防,王帅.断层封闭性定量评价[J].大庆石油学院学报,2010,34(5):35-41.
[22]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):34-42.
[23]吕延防,马福建.断层封闭性影响因素及类型划分[J].吉林大学学报:地球科学版,2003,33(2):163-166.
[24]罗群.断裂带的输导与封闭性及其控藏特征[J].石油实验地质,2011,33(5):474-479.
[25]陆友明,牛瑞卿.封闭性断层形成机理及研究方法[J].天然气地球科学,1999,10(5):12-16.
[26]陈伟,吴智平,侯峰.临南洼陷临商断裂带与油气成藏的关系[J].油气地质与采收率,2010,17(2):25-28.
[27]付广,刘洪霞,段海风.断层不同输导通道封闭机理及其研究方法[J].石油实验地质,2005,27(4):404-407.
[28]杨勇,邱贻博,查明.用模糊综合评判方法研究断层封闭性——以高邮凹陷陈堡地区为例[J].新疆石油地质,2005,26(1):102-104.
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