辫状河内部构型递进式建模方法
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摘要
为了精细刻画辫状河储层内部构型单元,提出了一种基于目标逐层递进式约束的建模方法。具体实现过程为通过基于目标的算法依次生成三个目标体:复合河道、心滩和落淤层,并设置相应规则使其满足辫状河构型模式,同时结合现代沉积和野外露头统计分析得到的经验数据与公式,来约束各目标体的参数分布范围,从而控制其在平面和剖面上的几何形态和规模,形成一套完整的递进式建模技术流程。该方法能够较好地刻画不同级次构型单元的几何形态、空间分布和相互之间的关系,生成的三维模型比较符合辫状河地质模式,实现了辫状河内部构型的三维表征,为剩余油的挖潜提供借鉴。
In order to finely describe braided river reservoirs, a progressive object-based modeling method is proposed. The concrete realization process is as follows: First, the combination channel, the bar and the interlayer are successively generated by object-based algorithm. Then the corresponding rules are set to meet the braided river architecture pattern. Second, the empirical data and formulas obtained from the statistical analysis of modern sediment and outcrops are used to constrain the parameter distribution range of each object, so as to control the geometry of the object in plane and section. Finally, a complete set of progressive architecture modeling techniques is developed. This method not only can reasonably describe the geometry, spatial distribution and the mutual relationship among the different level architecture units, but also can generate the three-dimensional model conforming to the braided river geological model. It realizes the three-dimensional characterization of the braided river internal architecture, which provides a strong basis for the remaining oil.
In order to finely describe braided river reservoirs, a progressive object-based modeling method is proposed. The concrete realization process is as follows: First, the combination channel, the bar and the interlayer are successively generated by object-based algorithm. Then the corresponding rules are set to meet the braided river architecture pattern. Second, the empirical data and formulas obtained from the statistical analysis of modern sediment and outcrops are used to constrain the parameter distribution range of each object, so as to control the geometry of the object in plane and section. Finally, a complete set of progressive architecture modeling techniques is developed. This method not only can reasonably describe the geometry, spatial distribution and the mutual relationship among the different level architecture units, but also can generate the three-dimensional model conforming to the braided river geological model. It realizes the three-dimensional characterization of the braided river internal architecture, which provides a strong basis for the remaining oil.
引文
[1] 李阳.我国油藏开发地质研究进展[J] .石油学报,2007,28(3) :75- 79.LI Y.Progress of research on reservoir development geology in China[J].Acta Petrolei Sinica,2007,28(3):75-79.(In Chinese)
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[4] 徐中波,申春生,陈玉琨,等.砂质辫状河储层构型表征及其对剩余油的控制——以渤海海域P油田为例[J].沉积学报,2016,35(2) :375-385.XU Z B,SHEN C S,CHEN Y K,et al.Architecture characterization for sandy braided river reservoir and controlling factors of remaining oil distribution—a case study of p oilfield (neogene),bohai offshore,China[J].Acta Sedimentologica Sinica,2016,35(2):375-385.(In Chinese)
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[8] 郭智,孙龙德,贾爱林,等.辫状河相致密砂岩气藏三维地质建模[J].石油勘探与开发,2015,42(1) :76-83.GUO Z,SUN L D,JIA A L,et al.3D geological modeling for tight sand gas reservoir of braided river facies[J].Petroleum Exploration and Development,2015,42(1):76-83.(In Chinese)
[9] 刘钰铭,侯加根,宋保全,等.辫状河厚砂层内部夹层表征——以大庆喇嘛甸油田为例[J].石油学报,2011,32(5) :836-841.LIU Y M,HOU J G,SONG B Q,et al.Characterization of interlayers within braided-river thick sandstones:A case study on the Lamadian Oilfield in Daqing[J].Acta Petrolei Sinica,2011,32(5):836-841.(In Chinese)
[10] 李少华,张昌明,尹艳树.储层建模算法剖析[M].北京:石油工业出版社,2012.LI S H,ZHANG C M,YIN Y S.Analysis of reservoir modeling algorithm[M].Beijing:Petroleum Industry Press,2012.(In Chinese)
[11] 陈迪,李少华,王红,等.河流相建模算法Fluvsim的一种改进方法[J].测绘与空间地理信息,2014,37(12) :56-59.CHEN D,LI S H,WANG H,et al.An improved method for Fluvsim:a program for stochastic modeling of fluvial facies[J].Geomatics & Spatial Information Technology,2014,37(12):56-59.(In Chinese)
[12] 陈仕臻,林承焰,任丽华,等.砂质辫状河沉积模式的建立———以委内瑞拉奥里诺科重油带H 区块为例[J] .沉积学报,2015,33(5) :965-971.CHEN S Z,LIN C Y,REN L H,et al.Establishment of the depositional model of sandy braided river:a case from the H block in Orinoco heavy oil belt,Venezuela[J].Acta Sedimentologica Sinica,2015,33(5):965-971.(In Chinese)
[13] 贾爱林,唐俊伟,何东博,等.苏里格气田强非均质致密砂岩储层的地质建模[J].石油地质,2007,(1) :12-16.JIA A L,TANG J W,HE D B,et al.Geological Modeling for Sandstone Reservoirs with Low Permeability and Strong Heterogeneity in Sulige Gasfield[J].Petroleum Geology,2007(1):12-16.(In Chinese)
[14] SEAN Kelly.(2016) Scaling and hierarchy in braided rivers and their deposits:examples and implications for reservoir modeling[J].International Association of Sedimentologists,2016(7):75-106.
[15] 牛博,高兴军,赵应成,等.古辫状河心滩坝内部构型表征与建模——以大庆油田萨中密井网区为例[J].石油学报,2014,36(1) :89-100.NIU B,GAO X J,ZHAO Y C,et al.Architecture characterization and modeling of channel bar in paleo-braided river:a case study of dense well pattern area of Sazhong in Daqing oilfield[J].Acta Petrolei Sinica,2014,36(1):89-100.(In Chinese)
[2] MTALL A D.Architectural-element analysis.A new method of Facies analysis applied to fluvial deposits[J].Earth Science Reviews,1985,22:261-308.
[3] 刘钰铭,侯加根,王连敏,等.辫状河储层构型分析[J].中国石油大学学报(自然科学版),2009,33(1) :7-11.LIU Y M,HOU J G,WANG L M,et al.Architecture analysis of braided river reservoir[J].Journal of China University of Petroleum,2009,33(1):7-11.(In Chinese)
[4] 徐中波,申春生,陈玉琨,等.砂质辫状河储层构型表征及其对剩余油的控制——以渤海海域P油田为例[J].沉积学报,2016,35(2) :375-385.XU Z B,SHEN C S,CHEN Y K,et al.Architecture characterization for sandy braided river reservoir and controlling factors of remaining oil distribution—a case study of p oilfield (neogene),bohai offshore,China[J].Acta Sedimentologica Sinica,2016,35(2):375-385.(In Chinese)
[5] 于兴河,马兴祥,穆龙新,等.辫状河储层地质模式及层次界面分析[M].北京:石油工业出版社,2004.YU X H,MA X X,MU L X,et al.Analysis of braided river reservoir geological model and hieraechy interface[M].Beijing:Petroleum Industry Press,2004.(In Chinese)
[6] 张春雷,段林娣,熊琦华.储集层随机建模的改进河道模型条件算法[J].石油勘探与开发,2004,31(4) :76-78.ZHANG C L,DUAN L D,XIONG Q H.Improved condition algorithm of fluvial facies for reservoir stochastic modeling[J].Petroleum Exploration and Development,2004,31(4):76-78.(In Chinese)
[7] 白振强.辫状河砂体三维构型地质建模研究[J].西南石油大学学报(自然科学版),2010,32(6) :21-24.BAI Z Q.Study on the 3D architecture geological modeling of braided fluvial sandbody[J].Journal of Southwest Petroleum University(Science & Technology Edition),2010,32(6):21-24.(In Chinese)
[8] 郭智,孙龙德,贾爱林,等.辫状河相致密砂岩气藏三维地质建模[J].石油勘探与开发,2015,42(1) :76-83.GUO Z,SUN L D,JIA A L,et al.3D geological modeling for tight sand gas reservoir of braided river facies[J].Petroleum Exploration and Development,2015,42(1):76-83.(In Chinese)
[9] 刘钰铭,侯加根,宋保全,等.辫状河厚砂层内部夹层表征——以大庆喇嘛甸油田为例[J].石油学报,2011,32(5) :836-841.LIU Y M,HOU J G,SONG B Q,et al.Characterization of interlayers within braided-river thick sandstones:A case study on the Lamadian Oilfield in Daqing[J].Acta Petrolei Sinica,2011,32(5):836-841.(In Chinese)
[10] 李少华,张昌明,尹艳树.储层建模算法剖析[M].北京:石油工业出版社,2012.LI S H,ZHANG C M,YIN Y S.Analysis of reservoir modeling algorithm[M].Beijing:Petroleum Industry Press,2012.(In Chinese)
[11] 陈迪,李少华,王红,等.河流相建模算法Fluvsim的一种改进方法[J].测绘与空间地理信息,2014,37(12) :56-59.CHEN D,LI S H,WANG H,et al.An improved method for Fluvsim:a program for stochastic modeling of fluvial facies[J].Geomatics & Spatial Information Technology,2014,37(12):56-59.(In Chinese)
[12] 陈仕臻,林承焰,任丽华,等.砂质辫状河沉积模式的建立———以委内瑞拉奥里诺科重油带H 区块为例[J] .沉积学报,2015,33(5) :965-971.CHEN S Z,LIN C Y,REN L H,et al.Establishment of the depositional model of sandy braided river:a case from the H block in Orinoco heavy oil belt,Venezuela[J].Acta Sedimentologica Sinica,2015,33(5):965-971.(In Chinese)
[13] 贾爱林,唐俊伟,何东博,等.苏里格气田强非均质致密砂岩储层的地质建模[J].石油地质,2007,(1) :12-16.JIA A L,TANG J W,HE D B,et al.Geological Modeling for Sandstone Reservoirs with Low Permeability and Strong Heterogeneity in Sulige Gasfield[J].Petroleum Geology,2007(1):12-16.(In Chinese)
[14] SEAN Kelly.(2016) Scaling and hierarchy in braided rivers and their deposits:examples and implications for reservoir modeling[J].International Association of Sedimentologists,2016(7):75-106.
[15] 牛博,高兴军,赵应成,等.古辫状河心滩坝内部构型表征与建模——以大庆油田萨中密井网区为例[J].石油学报,2014,36(1) :89-100.NIU B,GAO X J,ZHAO Y C,et al.Architecture characterization and modeling of channel bar in paleo-braided river:a case study of dense well pattern area of Sazhong in Daqing oilfield[J].Acta Petrolei Sinica,2014,36(1):89-100.(In Chinese)