马达班湾盆地东部浅层生物气藏地质条件分析
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摘要
马达班湾盆地浅层发育大量生物气藏,为评价研究区的生物气藏勘探潜力,指明下一步生物气勘探方向,结合区域地质特征,运用地震相分析等地球物理手段,对研究区沉积相特征进行了分析,并阐述了生物气藏的成藏条件,建立了研究区上新统油气成藏模式。结果表明,研究区上新统沉积相类型以三角洲沉积为主,沉积层序主要表现为前三角洲—三角洲前缘叠合体,沉积特征决定了该区浅层具有良好的生物气形成条件及保存条件,并控制了生物气藏的发育位置,沉积相带和侧向封堵条件控制圈闭的规模。研究区生物气主要集中在上新统及以上地层,盆地沉积中心地区是生物气勘探的主要领域。
Greater numbers of biogas reservoir develops in shallow layer of Martaban Gulf basin.In order to appraise the potential of biogas exploration,and indicate the direction for further biogas exploration in the area.The geophysical methods including seismic facies etc are used to the analysis of sedimentary facies combine with the regional geologic background,and established the oil-gas accumulation model.The result shows that the sedimentary facies is delta mainly in upper Pliocene of this area.The sedimentary sequence shows superimposed predelta-delta front sediments.These depositional characteristics may lead to good formation conditions and preservation conditions for biogas,and control the position of the biogas reservoirs.The sedimentary facies belt and lateral sealing control the scale of the traps.The biogas reservoirs concentrate in the Pliocene and upper formation,sedimentary center area of the basin is the major exploration area of biogas reservoirs.
Greater numbers of biogas reservoir develops in shallow layer of Martaban Gulf basin.In order to appraise the potential of biogas exploration,and indicate the direction for further biogas exploration in the area.The geophysical methods including seismic facies etc are used to the analysis of sedimentary facies combine with the regional geologic background,and established the oil-gas accumulation model.The result shows that the sedimentary facies is delta mainly in upper Pliocene of this area.The sedimentary sequence shows superimposed predelta-delta front sediments.These depositional characteristics may lead to good formation conditions and preservation conditions for biogas,and control the position of the biogas reservoirs.The sedimentary facies belt and lateral sealing control the scale of the traps.The biogas reservoirs concentrate in the Pliocene and upper formation,sedimentary center area of the basin is the major exploration area of biogas reservoirs.
引文
[1]陈立军,邓天龙,龙幼康.张家界汨湖地区浅层生物气资源评价及其地质意义[J].内蒙古石油化工,2009,(3):94～96.
[2]Schoell M.,Multiple origins of methane in the earth[J].Chemical geology,1988,71(1):1～10.
[3]张义纲,陈焕疆.论生物气的生成和聚集[J].石油与天然气地质,1983,4(2):160～170.
[4]高玲,宋进.云南保山盆地生物气生成模拟实验及生物气资源预测[J].成都理工学院学报,1998,25(4):487～494.
[5]朱光辉,谢晓军,邱春光.弧后走滑拉张盆地石油地质特征与油气勘探潜力——以缅甸An-daman海域马达班湾盆地为例[J].中国海上油气,2010,22(4):225～231.
[6]Mohan K,Dangwal S G V,Swngupta S.Andaman Basin-a future exploration target[J].Leading Edge,2006,25(8):964～967.
[7]Rao P S,Ramaswamy V,Thwin S.Sedi-ment texture,distribution and transport on the Ayeyarwady continental shelf,An-daman Sea[J].Marine Geology,2005,216(4):239～247.
[8]崔连训.王集油田核三段Ⅲ油组沉积微相研究[J].内蒙古石油化工,2012,(10):135～137.
[9]方■.辽河盆地东部凹陷南部地区天然气的同位素特征及成因[J].油气地质与采收率,2006,13(5):46～48.
[10]王静,乔文龙,祖丽菲亚.生物气成藏条件分析及准噶尔盆地生物气探究[J].新疆地质,2003,21(4):450～454.
[11]张鑫,朱光辉,赵汝敏,等.缅甸某区块上新统沉积演化及油气勘探意义[J].世界地质,2011,30(4):600～604.
[2]Schoell M.,Multiple origins of methane in the earth[J].Chemical geology,1988,71(1):1～10.
[3]张义纲,陈焕疆.论生物气的生成和聚集[J].石油与天然气地质,1983,4(2):160～170.
[4]高玲,宋进.云南保山盆地生物气生成模拟实验及生物气资源预测[J].成都理工学院学报,1998,25(4):487～494.
[5]朱光辉,谢晓军,邱春光.弧后走滑拉张盆地石油地质特征与油气勘探潜力——以缅甸An-daman海域马达班湾盆地为例[J].中国海上油气,2010,22(4):225～231.
[6]Mohan K,Dangwal S G V,Swngupta S.Andaman Basin-a future exploration target[J].Leading Edge,2006,25(8):964～967.
[7]Rao P S,Ramaswamy V,Thwin S.Sedi-ment texture,distribution and transport on the Ayeyarwady continental shelf,An-daman Sea[J].Marine Geology,2005,216(4):239～247.
[8]崔连训.王集油田核三段Ⅲ油组沉积微相研究[J].内蒙古石油化工,2012,(10):135～137.
[9]方■.辽河盆地东部凹陷南部地区天然气的同位素特征及成因[J].油气地质与采收率,2006,13(5):46～48.
[10]王静,乔文龙,祖丽菲亚.生物气成藏条件分析及准噶尔盆地生物气探究[J].新疆地质,2003,21(4):450～454.
[11]张鑫,朱光辉,赵汝敏,等.缅甸某区块上新统沉积演化及油气勘探意义[J].世界地质,2011,30(4):600～604.
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