苏北盆地海安凹陷泰州组输导体系及其控藏作用
|
摘要
油气输导体系研究是油气成藏机理研究的重要内容之-。采取宏观与微观相结合的研究思路,综合应用录井、测井、地震、分析测试等资料,识别苏北盆地海安凹陷泰州组油气运移范围和路径,指出了油气运移的优势通道,分析了海安凹陷泰州组输导体系的特征及其组合方式。泰州组一段3套骨架砂体和系列断层相互配置,形成了连通砂体型、断层型、砂体一断层复合型3种输导体系类型。输导体系类型决定了该区的油气成藏模式,在泰州组一段1砂组,以连通性较差砂体为输导体系,发育岩性油气藏和构造-岩性油气藏;在2+3砂组中,以断层或砂体—断层为输导体系,发育构造油气藏。综合研究表明,海安凹陷泰州组的砂体和断层是油气运移优势通道,以连通砂体为主要运移通道的油气藏常形成于距烃源层较近或相邻的层位;而以断层为垂向运移通道的油气藏常在断层带附近多层叠置。
Petroleum-conduct system is an important part of the reservoir mechanism research.Based on the data of drilling core, well-logging,seismic and analytical testing in Hai'an sag,pathway and scope of hydrocarbon migration is identified in Cretaceous Taizhou formation through macro-and micro-method.Sandbodies and faults are main migration paths,which construct petroleum-conduct system in Taizhou formation of Haian sag.Types of petroleum-conduct system,including sandbody,fault and sandbody-fault composite,control models of hydrocarbon accumulation.Lithological pool and lithological-structural pool in the first sand group of the first member of the Taizhou formation originated from sand body type system.Structural pool in the second and third sand group of the first member of the Taizhou formation originated from fault type system and sandbody-fault composite type. These conclusions are of guiding significance to oil gas prospects in the study area.So,we consider that the sand-body and faults of Taizhou formation in Hai'an sag are the main channel for hydrocarbon migration.The reservoir with connected sand-body as the main migration channel is often formed near the source rock or the adjacent horizons;but the reservoir with faults as the vertical migration channel is often formed near the fault zone.These results have important direction to the hydrocarbon exploration.
Petroleum-conduct system is an important part of the reservoir mechanism research.Based on the data of drilling core, well-logging,seismic and analytical testing in Hai'an sag,pathway and scope of hydrocarbon migration is identified in Cretaceous Taizhou formation through macro-and micro-method.Sandbodies and faults are main migration paths,which construct petroleum-conduct system in Taizhou formation of Haian sag.Types of petroleum-conduct system,including sandbody,fault and sandbody-fault composite,control models of hydrocarbon accumulation.Lithological pool and lithological-structural pool in the first sand group of the first member of the Taizhou formation originated from sand body type system.Structural pool in the second and third sand group of the first member of the Taizhou formation originated from fault type system and sandbody-fault composite type. These conclusions are of guiding significance to oil gas prospects in the study area.So,we consider that the sand-body and faults of Taizhou formation in Hai'an sag are the main channel for hydrocarbon migration.The reservoir with connected sand-body as the main migration channel is often formed near the source rock or the adjacent horizons;but the reservoir with faults as the vertical migration channel is often formed near the fault zone.These results have important direction to the hydrocarbon exploration.
引文
[1]沈朴,张善文,林会喜,等.油气输导体系研究综述[J].油气地质与采收率,2010,17(4):4-8.
[2]卓勤功,宁方兴,荣娜.断陷盆地输导体系类型及控藏机制[J].地质论评,2005,51(4):416-422.
[3]邱贻博,王永诗,刘伟.断裂带内部结构及其输导作用[J].油气地质与采收率,2010,17(4):1-3.
[4]杜春国,郝芳,邹华耀,等.断裂输导体系研究现状及存在的问题[J].地质科技情报,2007,26(1):51-55.
[5]熊伟.断陷盆地输导体系宏观格架及构成特征——以东营凹陷为例[J].石油勘探与开发,2006,33(4):474-478.
[6]Ghisetti F,Vezzani L.Detachments and normal faulting in the Marchefold and thrust belt:inferences on fluid migration paths[J]. Journal of Geodynamics,2000,29(3):345-369.
[7]Hindle A D.Petroleum migration pathways and charge concentration: a three - dimensional model[J].AAPG Bulletin,1997,81 (9):1 451-1 481.
[8]曾溅辉,王洪玉.输导层和岩性圈闭中石油运移和聚集模拟试验研究[J].地球科学,1999,24(2):193-196.
[9]姜振学,庞雄奇,曾溅辉,等.油气优势运移通道的类型及其物理模拟实验研究[J].地学前缘,2005,12(4):507-516.
[10]Nie F J,Li S T.Wang H,et al.Lateral migration pathways of petroleum in the ZhuⅢsubbasin,Pearl River Mouth Basin,South China sea[J].Marine and Petroleum Geology,2001,18(5):561 - 575.
[11]卢学军,刘华,王建瑞,等.渤海湾盆地霸县凹陷输导体系与新近系油气运聚特征[J].石油实验地质,2010,32(3):258-261.
[12]宋宁,王铁冠,陈莉琼,等.苏北盆地上白垩统泰州组油气成藏期综合分析[J].石油学报,2010,31(2):180-186.
[13]邵先杰,钟思瑛.廖光明,等.海安凹陷安丰退积型辫状三角洲沉积模式及建筑结构分析[J].大庆石油地质与开发,2005,24 (2):5-7.
[14]朱筱敏,刘长利,张亚雄,等.苏北盆地上白垩统泰州组砂岩成岩序列和储集层质量主控因素分析[J].占地理学报,2008,10 (5):439-446.
[2]卓勤功,宁方兴,荣娜.断陷盆地输导体系类型及控藏机制[J].地质论评,2005,51(4):416-422.
[3]邱贻博,王永诗,刘伟.断裂带内部结构及其输导作用[J].油气地质与采收率,2010,17(4):1-3.
[4]杜春国,郝芳,邹华耀,等.断裂输导体系研究现状及存在的问题[J].地质科技情报,2007,26(1):51-55.
[5]熊伟.断陷盆地输导体系宏观格架及构成特征——以东营凹陷为例[J].石油勘探与开发,2006,33(4):474-478.
[6]Ghisetti F,Vezzani L.Detachments and normal faulting in the Marchefold and thrust belt:inferences on fluid migration paths[J]. Journal of Geodynamics,2000,29(3):345-369.
[7]Hindle A D.Petroleum migration pathways and charge concentration: a three - dimensional model[J].AAPG Bulletin,1997,81 (9):1 451-1 481.
[8]曾溅辉,王洪玉.输导层和岩性圈闭中石油运移和聚集模拟试验研究[J].地球科学,1999,24(2):193-196.
[9]姜振学,庞雄奇,曾溅辉,等.油气优势运移通道的类型及其物理模拟实验研究[J].地学前缘,2005,12(4):507-516.
[10]Nie F J,Li S T.Wang H,et al.Lateral migration pathways of petroleum in the ZhuⅢsubbasin,Pearl River Mouth Basin,South China sea[J].Marine and Petroleum Geology,2001,18(5):561 - 575.
[11]卢学军,刘华,王建瑞,等.渤海湾盆地霸县凹陷输导体系与新近系油气运聚特征[J].石油实验地质,2010,32(3):258-261.
[12]宋宁,王铁冠,陈莉琼,等.苏北盆地上白垩统泰州组油气成藏期综合分析[J].石油学报,2010,31(2):180-186.
[13]邵先杰,钟思瑛.廖光明,等.海安凹陷安丰退积型辫状三角洲沉积模式及建筑结构分析[J].大庆石油地质与开发,2005,24 (2):5-7.
[14]朱筱敏,刘长利,张亚雄,等.苏北盆地上白垩统泰州组砂岩成岩序列和储集层质量主控因素分析[J].占地理学报,2008,10 (5):439-446.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心