大港油田滩海区域ZH5断块厚砂体夹层研究
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摘要
大港油田滩海区域ZH5断块发育单层厚砂体,目前开发效果差,急需开展夹层研究,寻找注水未波及区,挖掘剩余油.通过采用孔隙度-渗透率交会法与测井识别法有效识别,研究区夹层主要为泥质夹层和物性夹层.夹层纵向对应关系差,平面分布受沉积微相展布特征控制,主要发育于滩坝沉积的侧部.泥质夹层主要分布于断块的中南部,呈条带状分布,物性夹层呈片状不稳定分布.通过对ZH29-29井封堵水淹层,控水效果良好.
Single-layer thick sand reservoir is developed in the ZH5 block of shallow water area,Dagang Oilfield,but the current exploitation effect is poor. Therefore it is urgent to study on interbeds to search for unaffected areas by water injection and tap the remained oil. The interbeds in the study area mainly fall into muddy and petrophysical interbeds by the effective identification methods of porosity-permeability intersection and logging curve. The vertical corresponding relationship of interbeds is poor;while the horizontal distribution characteristics are controlled by those of sedimentary microfacies,mainly developed on the side of beach bar sedimentation. The muddy interbeds distribute in bands along the central-south of the block. The petrophysical interbeds are in unstable platy distribution. Through sealing the water flooded layer of ZH29-29 well,the water controlling effect is good.
Single-layer thick sand reservoir is developed in the ZH5 block of shallow water area,Dagang Oilfield,but the current exploitation effect is poor. Therefore it is urgent to study on interbeds to search for unaffected areas by water injection and tap the remained oil. The interbeds in the study area mainly fall into muddy and petrophysical interbeds by the effective identification methods of porosity-permeability intersection and logging curve. The vertical corresponding relationship of interbeds is poor;while the horizontal distribution characteristics are controlled by those of sedimentary microfacies,mainly developed on the side of beach bar sedimentation. The muddy interbeds distribute in bands along the central-south of the block. The petrophysical interbeds are in unstable platy distribution. Through sealing the water flooded layer of ZH29-29 well,the water controlling effect is good.
引文
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[2]隗合明,党犇,顿铁军.辽河油田曙光区兴隆台油层隔层特征及其封隔能力评价[J].石油天然气地质,2001,22(3):88-92.
[3]丁世梅,季民,史洁,等.泥岩隔夹层类型及剩余油控制研究[J].江汉石油学院学报,2004,26(4):130-134.
[4]毛立华,赵良金,李中超,等.濮城油田沙河街组辫状河三角洲储集层隔夹层研究[J].石油天然气学报(江汉石油学院学报),2008,15(6):21-24.
[5]张吉,张烈辉,胡书勇.陆相碎屑岩储集层隔夹层成因、特征及其识别[J].大庆石油地质与开发,2003,22(4):1-3.
[6]周国文,谭成仟,郑小武,等.H油田隔夹层测井识别方法研究[J].石油物探,2006,45(5):542-546.
[7]印森林,陈恭洋,戴春明,等.河口坝内部储层构型及剩余油分布特征[J].石油与天然气地质,2015,36(4):630-639.
[8]杨圣贤,严科.河口坝储层内部结构及对剩余油分布的影响[J].西南石油大学学报:自然科学版,2016,38(4):56-62.
[9]雍自权,杨锁,钟韬,等.大涝坝地区巴什基奇克组隔夹层特征及分布规律[J].成都理工大学学报(自然科学版),2010,37(1):50-54.
[10]朱东亚,胡文瑄,曹学伟,等.临南油田隔层类型划分及其分布规律研究[J].地球科学,2004,29(2):211-223.
[11]孙天建,穆龙新,赵国良.砂质辫状河储集层隔夹层类型及其表征方法---以苏丹穆格莱特盆地Hegli油田为例[J].石油勘探与开发,2013,41(1);88-92.
[12]韩如冰,刘强,江同文,等.钙质隔夹层特征、成因及分布---以塔里木盆地哈得油田东河砂岩为例[J].石油勘探与开发,2014,41(4):428-437.