扇三角洲前缘单一河道砂体识别与定量表征
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摘要
为定量刻画具有复杂叠置关系的扇三角洲储层单一河道砂体的时空分布特点,利用密井网区10口取心井岩心资料和588口井测井资料,以沉积学理论为指导,对辽河油田曙一区Du84块兴Ⅰ组扇三角洲前缘水下分流河道内单一河道砂体进行定量识别。结果表明:单一河道砂体边界识别标志包括高程差异、坝上孤立河道、厚薄厚特征、砂体侧向叠置和河道间沉积等5种类型;垂向叠置样式包括垂向叠置、错位叠置和孤立型叠置等3种类型;扇三角洲前缘水下分流河道呈NE-WS方向展布,从近源到远源位置河道分叉程度变高,宽度变窄,弯曲度增加,单砂体由垂向叠置型的连片分布变为孤立型的条带状分布。
In order to quantitatively describe and characterize the time-space distribution features of the individual channel sandbodies in the fan delta reservoirs with rather complicated overlying relationships,with the help of 10 coring well data and 588 logging well data in the dense spacing blocks,guided by the sedimentary theory,the quantitative identification was conducted for the sandbodies in Member XingⅠfan-delta-front underwater distributary channels of Block Du84 of Shu-1 area of Liaohe Oilfield. The achievements show that the boundary identifying marks of the sandbodies include the following five types:elevation difference,single channel on the mouth bar,thick-thin-thick character,sandbody lateral superimposition and inter-channel sedimentation; the vertical superimposition patterns are shown as follows:vertical superimposition,dislocation superimposition and separated one; the underwater distributary channels stretch in the direction of NE-SW,and from the proximal source to distal one,the degree of the channel divaricating becomes high,and the width of the channel becomes narrow,the amount of the channel deflection gets increased,for the individual sandbodies,the vertically superimposed distribution turns into separated one.
In order to quantitatively describe and characterize the time-space distribution features of the individual channel sandbodies in the fan delta reservoirs with rather complicated overlying relationships,with the help of 10 coring well data and 588 logging well data in the dense spacing blocks,guided by the sedimentary theory,the quantitative identification was conducted for the sandbodies in Member XingⅠfan-delta-front underwater distributary channels of Block Du84 of Shu-1 area of Liaohe Oilfield. The achievements show that the boundary identifying marks of the sandbodies include the following five types:elevation difference,single channel on the mouth bar,thick-thin-thick character,sandbody lateral superimposition and inter-channel sedimentation; the vertical superimposition patterns are shown as follows:vertical superimposition,dislocation superimposition and separated one; the underwater distributary channels stretch in the direction of NE-SW,and from the proximal source to distal one,the degree of the channel divaricating becomes high,and the width of the channel becomes narrow,the amount of the channel deflection gets increased,for the individual sandbodies,the vertically superimposed distribution turns into separated one.
引文
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[20]李志鹏,林承焰,董波,等.河控三角洲水下分流河道砂体内部建筑结构模式[J].石油学报,2012,33(1):102.
[21]林煜,吴胜和,岳大力,等.扇三角洲前缘储层构型精细解剖:以辽河油田曙2-6-6区块杜家台油层为例[J].天然气地球科学,2013,24(2):335-342.
[22]宋璠,杨少春,苏妮娜,等.扇三角洲前缘储层构型界面划分与识别:以辽河盆地欢喜岭油田锦99区块杜家台油层为例[J].西安石油大学学报(自然科学版),2015,30(1):8-12.
[23]赵小庆,鲍志东,刘宗飞,等.河控三角洲水下分流河道砂体储集层构型精细分析:以扶余油田探51区块为例[J].石油勘探与开发,2013,40(2):182.
[24]田景春,张兴良,王峰,等.鄂尔多斯盆地高桥地区上古生界储集砂体叠置关系及分布定量刻画[J].石油与天然气地质,2013,34(6):737-739.
[25]姜在兴.沉积学[M].北京:石油工业出版社,2003.
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[27]陈龙,陈红汉,王家豪,等.测井相在松辽盆地南部嫩江组三段沉积微相分析中的应用[J].特种油气藏,2011,18(3):52-55.
[28]Miall A D.Lithofacies types and vertical profile modes in braided rivers:a Summary[C]//Miall A D.Fluvial Sedimentology Canadian Society of Petroleum Gedogists,Memoir,1978:597-604.
[29]王振奇,何贞铭,张昌民,等.三角洲前缘露头储层层次分析:以鄂尔多斯盆地东缘潭家河剖面为例[J].江汉石油学院学报,2004,26(3):32-35.
[30]王明飞,王荣,高晓鹏,等.曲流河道宽深计算方法及应用[J].大庆石油地质与开发,2012,31(1):32-33.
[31]岳大力.曲流河储层构型分析与剩余油分布模式研究:以孤岛油田馆陶组为例[D].北京:中国石油大学,2006.
[2]党犇,赵虹,周立发,等.辽河油田曙一区杜84块兴隆台油层储层非均质性[J].石油与天然气地质,2002,23(4):382-383.
[3]王钰,陈欢庆,周俊杰,等.扇三角洲前缘储层构型表征:以辽河西部凹陷于楼为例[J].大庆石油地质与开发,2016,35(2):20-28.
[4]党胜国,权勃,闫建丽,等.小气顶低幅构造强底水油藏剩余油分布主控因素[J].油气地质与采收率,2016,23(1):129-133.
[5]王锐.辫状河厚砂体内部夹层的识别及分布特征[J].大庆石油地质与开发,2016,35(3):83-87.
[6]陈欢庆.靖安油田大路沟一区长2储层精细油藏描述[D].西安:西北大学,2006.
[7]于欢.辫状河储层内部构型精细描述及剩余油分布[J].大庆石油地质与开发,2015,34(4):73-77.
[8]罗顺社,李梦杰,刘俊,等.定边—吴起地区长6砂体结构对油藏分布的控制[J].特种油气藏,2015,22(2):8-12.
[9]李顺明,宋新民,蒋有伟,等.高尚堡油田砂质辫状河储集层构型与剩余油分布[J].石油勘探与开发,2011,38(4):475.
[10]周银邦,吴胜和,岳大力,等.复合分流河道砂体内部单河道划分:以萨北油田北二西区萨Ⅱ1+2b小层为例[J].油气地质与采收率,2010,17(2):4-8.
[11]孙友海.萨北二西二类油层精细沉积微相、非均质性及剩余油研究[D].大庆:东北石油大学,2011.
[12]吴俊,樊太亮,刘慧盈,等.辽河西部凹陷曙一区杜84块兴I组高分辨率层序地层[J].石油与天然气地质,2015,36(3):430-431.
[13]陈义国.曙一区杜84块兴隆台西超稠油开发技术探讨[J].西部探矿工程,2008,20(9):106-109.
[14]苏生瑞,张靖宇,毛彦龙,等.辽河油田曙一区杜84块兴隆台油层构造应力场研究[J].西安工程学院学报,2001,23(1):11-15.
[15]何宇航,于开春.分流平原相复合砂体单一河道识别及效果分析[J].大庆石油地质与开发,2005,24(2):17-18.
[16]秦润森,廖新武,冯鑫,等.秦皇岛32-6油田南区明下段Ⅰ油组3小层河道砂体叠置类型及其动态响应特征[J].油气地质与采收率,2014,21(3):15-16.
[17]刘景彦,曲爱英,刘元贵,等.辽河东部凹陷红星地区古近系高精度层序地层和沉积体系研究[J].西北地质.2008,41(2):73.
[18]姜在兴,操应长.砂体层序地层及沉积学研究[M].北京:地质出版社,2000.
[19]封从军,鲍志东,代春明,等.三角洲前缘水下分流河道单砂体叠置机理及对剩余油的控制:以扶余油田J19区块泉头组四段为例[J].石油与天然气地质,2015,36(1):128-132.
[20]李志鹏,林承焰,董波,等.河控三角洲水下分流河道砂体内部建筑结构模式[J].石油学报,2012,33(1):102.
[21]林煜,吴胜和,岳大力,等.扇三角洲前缘储层构型精细解剖:以辽河油田曙2-6-6区块杜家台油层为例[J].天然气地球科学,2013,24(2):335-342.
[22]宋璠,杨少春,苏妮娜,等.扇三角洲前缘储层构型界面划分与识别:以辽河盆地欢喜岭油田锦99区块杜家台油层为例[J].西安石油大学学报(自然科学版),2015,30(1):8-12.
[23]赵小庆,鲍志东,刘宗飞,等.河控三角洲水下分流河道砂体储集层构型精细分析:以扶余油田探51区块为例[J].石油勘探与开发,2013,40(2):182.
[24]田景春,张兴良,王峰,等.鄂尔多斯盆地高桥地区上古生界储集砂体叠置关系及分布定量刻画[J].石油与天然气地质,2013,34(6):737-739.
[25]姜在兴.沉积学[M].北京:石油工业出版社,2003.
[26]朱筱敏.沉积岩石学[M].北京:石油工业出版社,2001:147-159.
[27]陈龙,陈红汉,王家豪,等.测井相在松辽盆地南部嫩江组三段沉积微相分析中的应用[J].特种油气藏,2011,18(3):52-55.
[28]Miall A D.Lithofacies types and vertical profile modes in braided rivers:a Summary[C]//Miall A D.Fluvial Sedimentology Canadian Society of Petroleum Gedogists,Memoir,1978:597-604.
[29]王振奇,何贞铭,张昌民,等.三角洲前缘露头储层层次分析:以鄂尔多斯盆地东缘潭家河剖面为例[J].江汉石油学院学报,2004,26(3):32-35.
[30]王明飞,王荣,高晓鹏,等.曲流河道宽深计算方法及应用[J].大庆石油地质与开发,2012,31(1):32-33.
[31]岳大力.曲流河储层构型分析与剩余油分布模式研究:以孤岛油田馆陶组为例[D].北京:中国石油大学,2006.