银根盆地查干凹陷火成岩岩相特征及其识别标志
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摘要
对银根盆地查干凹陷中广泛分布着的火成岩相和它们在地震剖面上的识别标志进行了研究,探讨了该区火成岩与油气藏的关系,指出了火成岩油气藏的有利区带。该区火成岩岩相类型有爆发相、溢流相、火山颈相及火山沉积相,尤以溢流相最为发育;依据火山岩类通常以地震波速较高、密度大、磁化率高、电阻率大和地震波吸收能量大的特征,建立了4种火山岩岩相和4种侵入岩岩相的地震识别标志。深大断裂控制着火成岩的分布,同时控制着火成岩圈闭的分布。断裂发育带附近是火成岩油气藏勘探的最有利地区。
The igneous rocks occur widely in Chagan sag of Yin'gen basin.This paper presents the study of the igneous rock lithofacies and seismic recognition marks,the discussion of the relations between igneous rocks and oil-gas reservoirs,pointing out the favorable zones of igneous reservoirs.The igneous lithofacies types include explosive facies,overflow facies,volcanic-neck facies and volcano sedimentary facies,of which overflow facies is the most developed.According to the characteristics of the volcanic types such as high seismic wave velocity,high density,high magnetic susceptibility,high resistivity and high absorbability of seismic wave,the seismic recognition marks of four volcanic lithofacies and four intrusive lithofacies are set up.It is concluded that the deep fault controls both distribution of the igneous rocks and distribution of igneous traps.The favorable zones of igneous reservoir prospecting should be near the fault-developed belts.
The igneous rocks occur widely in Chagan sag of Yin'gen basin.This paper presents the study of the igneous rock lithofacies and seismic recognition marks,the discussion of the relations between igneous rocks and oil-gas reservoirs,pointing out the favorable zones of igneous reservoirs.The igneous lithofacies types include explosive facies,overflow facies,volcanic-neck facies and volcano sedimentary facies,of which overflow facies is the most developed.According to the characteristics of the volcanic types such as high seismic wave velocity,high density,high magnetic susceptibility,high resistivity and high absorbability of seismic wave,the seismic recognition marks of four volcanic lithofacies and four intrusive lithofacies are set up.It is concluded that the deep fault controls both distribution of the igneous rocks and distribution of igneous traps.The favorable zones of igneous reservoir prospecting should be near the fault-developed belts.
引文
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[12]吴伟,张秀荣,徐东芳.徐家围子断陷火山岩圈闭含气性的综合评价[J].大庆石油学院学报,2002,26(2):9-11.
[2]高知云,章谦澄.黄骅盆地新生代火山岩与油气[M].北京:石油工业出版社,1999.
[3]郭占谦.火山作用与油气田的形成和分布[J].新疆石油地质,2000,23(3):183-185.
[4]张坤,刘峰,程秀芹.松辽盆地南部火山岩及其在成藏过程中的作用[J].大庆石油地质与开发,2002,21(3):16-17.
[5]操应长,姜在兴,邱隆伟.山东惠民凹陷商741块火成岩油藏储集空间类型及形成机理探讨[J].岩石学报,1999,15(1):129-136.
[6]陈岩.克拉玛依油田一区石炭系火山岩油藏剖析[J].新疆石油地质,1988,9(1):17-31.
[7]熊琦华,吴胜和.三塘湖盆地二叠系火成岩储集特征及储层发育的控制因素[J].石油实验地质,1998,20(2):129-134.
[8]张代生,李光云,罗肇,等.银根-额济纳旗盆地油气地质条件[J].新疆石油地质,2003,24(2):130-133.
[9]赵立,陈家敏,王学良.青龙台地区火山岩成藏特征研究及储层预测[J].特种油气藏,2001,8(1):53-56.
[10]仇劲涛,罗海炳,王国勇.东部凹陷中段火山岩成藏条件分析[J].特种油气藏,2001,8(1):57-62.
[11]李伟忠,王铭宝,蒋龙.高青油田孔店组火山岩油藏储层特征及成藏规律[J].特种油气藏,2003,10(2):108-111.
[12]吴伟,张秀荣,徐东芳.徐家围子断陷火山岩圈闭含气性的综合评价[J].大庆石油学院学报,2002,26(2):9-11.
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