印度尼西亚萨拉瓦提盆地油气分布规律及成藏主控因素
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摘要
萨拉瓦提盆地位于东印度尼西亚鸟头岛地区,为印度尼西亚重要的含油气盆地。在综合研究区域地质资料基础上,结合盆地地震、测井资料及盆地油气田等数据,对萨拉瓦提盆地石油地质特征、油气分布规律及成藏主控因素进行分析。研究表明:萨拉瓦提盆地大致经历了早期裂谷、中期挤压沉降和晚期挤压褶皱、局部逆冲几个演化阶段;萨拉瓦提盆地主要烃源岩为中新统Klasafet组的海相页岩,主要储层为中新统Kais组碳酸盐岩礁体;Kais组沉积经历3个阶段,其中第一阶段沉积的台地碳酸盐岩为油气运移的良好通道;萨拉瓦提盆地发育3个有利的油气富集带;油气差异聚集控制盆地油气田的分布,平面上具有"内气外油"的特征;盆地发育的向西北生烃凹陷倾没的近NW—SE向构造鼻是控制盆地成藏的关键因素,盆地未来主要勘探方向为位于构造鼻上的KOI地区。
Salawati Basin is located in the Bird Head region of eastern Indonesia.It is an important petroliferous basin in Indonesia.Based on the study of regional geological data,combined with seismic and log data as well as oil/gas field data,the characteristics of petroleum geology and oil/gas distribution as well as main factors of hydrocarbon accumulation were researched.It showed that Salawati Basin underwent three stages as the early rifted stage,the middle compressional sag stage and the late compressional folding including local thrust stage.The source of Salawati Basin is the marine shale of Klasafet Formation in Miocene and the reservoir is the carbonate reef of the Kais Formation in Miocene.The Kais Formation underwent three stages and the platform carbonate developed in the first stage is the good oil and gas migration path.Three fairways exist in Salawati Basin.The distribution of oil and gas fields is controlled by hydrocarbon differential accumulation.It features in gas inside and oil outside on the plane.The key factor of hydrocarbon accumulation is the NW-SE trend of structural nose dipped into the kitchen in the northwest of the Basin.Meanwhile,the KOI area located in the structural nose is the future exploration target.
Salawati Basin is located in the Bird Head region of eastern Indonesia.It is an important petroliferous basin in Indonesia.Based on the study of regional geological data,combined with seismic and log data as well as oil/gas field data,the characteristics of petroleum geology and oil/gas distribution as well as main factors of hydrocarbon accumulation were researched.It showed that Salawati Basin underwent three stages as the early rifted stage,the middle compressional sag stage and the late compressional folding including local thrust stage.The source of Salawati Basin is the marine shale of Klasafet Formation in Miocene and the reservoir is the carbonate reef of the Kais Formation in Miocene.The Kais Formation underwent three stages and the platform carbonate developed in the first stage is the good oil and gas migration path.Three fairways exist in Salawati Basin.The distribution of oil and gas fields is controlled by hydrocarbon differential accumulation.It features in gas inside and oil outside on the plane.The key factor of hydrocarbon accumulation is the NW-SE trend of structural nose dipped into the kitchen in the northwest of the Basin.Meanwhile,the KOI area located in the structural nose is the future exploration target.
引文
[1]IHS Salawati Basin.IHS Basin Monitor,507700_fie.pdf,IHS,2008.
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[2]Satyana A H,Yanto Salim,Demarest J M.Significance of focused hydrocarbon migration inthe Salawati basin:Controls of faults and structuralnoses.Proceedings of the 27th Annual Convention ofIndonesian Petroleum Association,held in Jakarta,edited by Convention of Indonesian PetroleumAssociation,published by IPA,1999.
[3]Satyana A H.Re-evaluation of the sedimentologyand evolution of the Kais carbonate platform,Salawati Basin,Eastern Indonesia:Explorationsignificance.Proceedings of the 29th AnnualConvention of Indonesian Petroleum Association,held in Jakarta,edited by Convention of IndonesianPetroleum Association,published by IPA,2003.
[4]余辉龙,等.印度尼西亚萨拉瓦提盆地第三系Kais组碳酸盐岩生物礁圈闭特征[J].现代地质,2005,19(3):409~415.
[5]谯汉生,于兴河,等.裂谷盆地石油地质[M].北京:石油工业出版社,2004.
[6]贾承造.前陆冲断带油气勘探[M].北京:石油工业出版社,2000.
[7]胡见义,等.石油地质学前缘[M].北京:石油工业出版社,2001.
[8]饶轶群.印尼Waipogah盆地A区块油气地质特征与勘探潜力[J].中国石油勘探,2012,17(5):55~58.
[9]余辉龙.印度尼西亚萨拉瓦提盆地Kais组碳酸盐岩生物礁圈闭及成藏规律研究[D].中国地质大学(北京)博士研究生毕业论文,2006.
[10]赵焕庭.我国生物礁研究的发展[J].第四纪研究,1996,96(3):253~262.
[11]范嘉松.中国生物礁与油气[M].北京:海洋出版社,1996.
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