胡尖山油田胡154密井网区单河道砂体定量表征
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摘要
密井网区单河道砂体定量表征可为油田井网部署及注采调整提供地质依据。以胡尖山油田胡154密井网区长4+521小层为例,对研究区广泛发育的三角洲前缘水下分流河道复合砂体进行精细刻画,将其解剖成单一期次河道砂体,获得了单河道砂体的定量地质知识。研究取得如下认识:确立了单河道砂体边界的3种垂向和4种侧向识别标志。单河道砂体几何形态分为细条带状、宽条带状和交织条带状3种,单河道砂体宽度介于150～560m之间,厚度介于1.5～5.4m之间,宽厚比介于22～121之间;宽度与厚度呈对数关系,相关系数达0.854 1,相关性较好。根据河道发育的期次不同,单河道砂体接触样式可分为孤立式、叠加式、叠切式3种垂向接触样式和分离式、对接式、侧切式3种平面接触样式。
The quantitative characterization of single channel sandbody in dense well network area can provide geological basis for oilfield well pattern arrangement and injection production adjustment.Taking Chang-4+521 layers in dense well network area of Hu154 wellblock of Hujianshan oilfield as an example,a detailed description of subaqueous distributary channel composite sandbodies in the delta front of the study area was carried out,which was dissected into a single channel sandbody,and the quantitative geological knowledge of the single channel sandbody was obtained.The results were described as follows:three vertical marks and four lateral marks of the boundary of single channel sandbody were established.The geometric shapes of single channel sandbody were divided into three shapes such as thin stripped shape,wide stripped shape and intertwined stripped shape.The width of single channel sandbody is between 150 and 560 m,the thickness is between 1.5 and 5.4 m,and the ratio of width to thickness is between 22～121.The relationship between width and thickness is logarithmic,the correlation coefficient is 0.854 1,and the correlation is good.According to the different stages of channel development,the contact styles of single channel sandbody can be summarized as three vertical contact styles and three lateral contact styles.Three vertical contact styles include isolated-type,overlap-type and overlay cutting type.Three lateral contact styles include seperrated-type,butt-joint type and side shear type.
The quantitative characterization of single channel sandbody in dense well network area can provide geological basis for oilfield well pattern arrangement and injection production adjustment.Taking Chang-4+521 layers in dense well network area of Hu154 wellblock of Hujianshan oilfield as an example,a detailed description of subaqueous distributary channel composite sandbodies in the delta front of the study area was carried out,which was dissected into a single channel sandbody,and the quantitative geological knowledge of the single channel sandbody was obtained.The results were described as follows:three vertical marks and four lateral marks of the boundary of single channel sandbody were established.The geometric shapes of single channel sandbody were divided into three shapes such as thin stripped shape,wide stripped shape and intertwined stripped shape.The width of single channel sandbody is between 150 and 560 m,the thickness is between 1.5 and 5.4 m,and the ratio of width to thickness is between 22～121.The relationship between width and thickness is logarithmic,the correlation coefficient is 0.854 1,and the correlation is good.According to the different stages of channel development,the contact styles of single channel sandbody can be summarized as three vertical contact styles and three lateral contact styles.Three vertical contact styles include isolated-type,overlap-type and overlay cutting type.Three lateral contact styles include seperrated-type,butt-joint type and side shear type.
引文
[1]赵俊峰,屈红军,林晋炎,等.湖泊三角洲沉积露头精细解剖:以鄂尔多斯盆地裴庄剖面为例[J].沉积学报,2014,32(6):1026-1034.
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[3]张志攀,张瀛.联盟油田沙一下深水浊积水道储层构型表征[J].非常规油气,2017,4(5):17-24,9.
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[6]封从军,鲍志东,杨玲,等.三角洲前缘水下分流河道储集层构型及剩余油分布[J].石油勘探与开发,2014,41(3):323-329.
[7]杨荣国,张新印.鄂尔多斯盆地郭旗地区长6砂体叠加样式研究[J].非常规油气,2017,4(3):81-86.
[8]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):335-344.
[9]郭秀娟,魏荷花,金振奎,等.渭北油田密井网水下分流河道储层构型研究及应用[J].中国矿业,2015,24(2):93-98.
[10]MIALL A D.Lithofacies types and vertical profile modes in braided rivers:a summary[C].Fluvial Sedimentology Canadian Society of Petroleum Geologists,Memoir,1978:597-604.
[11]LEEDER M R.Fluviatile fining upwards cycles and the magnitude of paleochannels[J].Geological Magazine,1973,110(3):265-276.
[12]LORENZ J C,HEINZE D M,CLARK J A,et al.Determination of width of meander-belt sandstone reservoirs from vertical downhole data,Mesa Verde group,Piceance Greek basin,Colorado[J].AAPG Bulletin,1985,69(2):710-721.
[13]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.
[14]付晶,吴胜和,王哲,等.湖盆浅水三角洲分流河道储层构型模式:以鄂尔多斯盆地东缘延长组野外露头为例[J].中南大学学报(自然科学版),2015,46(11):4174-4182.
[15]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):128-135.
[16]陈程,孙义梅,贾爱林.扇三角洲前缘地质知识库的建立及应用[J].石油学报,2006,27(2):53-57.
[17]任世杰,高胜利,高超利.鄂尔多斯盆地东部子洲地区浅水三角洲沉积特征[J].非常规油气,2018,5(3):18-24.
[18]曾勇.鄂尔多斯盆地环县地区长8油层组浅水三角洲内前缘沉积特征[J].非常规油气,2016,3(5):38-44.
[19]赵伦,王进财,陈礼,等.砂体叠置结构及构型特征对水驱规律的影响:以哈萨克斯坦南图尔盖盆地Kumkol油田为例[J].石油勘探与开发,2014,41(1):86-94.
[20]尹艳树,刘元.近岸水下扇扇中厚砂体储层构型及对剩余油控制:以南襄盆地泌阳凹陷古近系核桃园组三段四砂组2小层为例[J].地质论评,2017,63(3):703-718.
[21]封从军,鲍志东,单启铜,等.三角洲平原复合分流河道内部单砂体划分:以扶余油田中区南部泉头组四段为例[J].石油与天然气地质,2012,33(1):77-83.
[2]张兴阳,罗平,顾家裕,等.三级基准面旋回内三角洲砂体骨架模型的建立:以陕北安塞三角洲露头为例[J].沉积学报,2006,24(4):540-548.
[3]张志攀,张瀛.联盟油田沙一下深水浊积水道储层构型表征[J].非常规油气,2017,4(5):17-24,9.
[4]金振奎,李燕,高白水,等.现代缓坡三角洲沉积模式:以鄱阳湖赣江三角洲为例[J].沉积学报,2014,32(4):710-723.
[5]尹太举,李宣玥,张昌民,等.现代浅水湖盆三角洲沉积砂体形态特征:以洞庭湖和鄱阳湖为例[J].石油天然气学报,2012,34(10):1-7.
[6]封从军,鲍志东,杨玲,等.三角洲前缘水下分流河道储集层构型及剩余油分布[J].石油勘探与开发,2014,41(3):323-329.
[7]杨荣国,张新印.鄂尔多斯盆地郭旗地区长6砂体叠加样式研究[J].非常规油气,2017,4(3):81-86.
[8]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):335-344.
[9]郭秀娟,魏荷花,金振奎,等.渭北油田密井网水下分流河道储层构型研究及应用[J].中国矿业,2015,24(2):93-98.
[10]MIALL A D.Lithofacies types and vertical profile modes in braided rivers:a summary[C].Fluvial Sedimentology Canadian Society of Petroleum Geologists,Memoir,1978:597-604.
[11]LEEDER M R.Fluviatile fining upwards cycles and the magnitude of paleochannels[J].Geological Magazine,1973,110(3):265-276.
[12]LORENZ J C,HEINZE D M,CLARK J A,et al.Determination of width of meander-belt sandstone reservoirs from vertical downhole data,Mesa Verde group,Piceance Greek basin,Colorado[J].AAPG Bulletin,1985,69(2):710-721.
[13]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.
[14]付晶,吴胜和,王哲,等.湖盆浅水三角洲分流河道储层构型模式:以鄂尔多斯盆地东缘延长组野外露头为例[J].中南大学学报(自然科学版),2015,46(11):4174-4182.
[15]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):128-135.
[16]陈程,孙义梅,贾爱林.扇三角洲前缘地质知识库的建立及应用[J].石油学报,2006,27(2):53-57.
[17]任世杰,高胜利,高超利.鄂尔多斯盆地东部子洲地区浅水三角洲沉积特征[J].非常规油气,2018,5(3):18-24.
[18]曾勇.鄂尔多斯盆地环县地区长8油层组浅水三角洲内前缘沉积特征[J].非常规油气,2016,3(5):38-44.
[19]赵伦,王进财,陈礼,等.砂体叠置结构及构型特征对水驱规律的影响:以哈萨克斯坦南图尔盖盆地Kumkol油田为例[J].石油勘探与开发,2014,41(1):86-94.
[20]尹艳树,刘元.近岸水下扇扇中厚砂体储层构型及对剩余油控制:以南襄盆地泌阳凹陷古近系核桃园组三段四砂组2小层为例[J].地质论评,2017,63(3):703-718.
[21]封从军,鲍志东,单启铜,等.三角洲平原复合分流河道内部单砂体划分:以扶余油田中区南部泉头组四段为例[J].石油与天然气地质,2012,33(1):77-83.
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