尕斯油田岩性建模算法优选
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摘要
比较岩性模型建立方法。首先,在高分辨率层序地层学的指导下,最大限度地应用地质、露头、三维地震、测井等静态资料,发挥井点资料垂向分辨率高,地震资料横向信息丰富的优势,在地质规律约束下建立不同时间的高精度等时地层格架模型。然后,在精细格架模型的基础上,以测井解释得到的岩相数据作为条件数据,分别采用指示克里格、截断高斯模拟、Object-modeling算法、贯指示模拟建立砂体展布模型。最后,通过抽稀检验评价不同算法对模拟结果的影响,实现算法及其参数的优选,从而指导整个区块不同开发阶段,不同井网密度时全区三维精细地质模型的建立,也可为具有相似地质环境的油田建立三维地质模型提供参考。通过比较,优选出指示克里格、序贯指示模拟两种算法都能较好表征本研究区地质情况。
This paper deals with optimizing algorithms of lithologic modeling.Firstly,under the guidance of high resolution sequence stratigraphy,geological,outcrop,seismic,logging and other static data are applied to the fullest possible extent.The logging data advantage of high vertical resolution and the seismic data advantage of rich lateral information are exploited to the full to establish the high accuracy isochronous stratigraphic model under the restraint of geological regularity.Then,taking the petrographic data obtained from well log data as the condition data,and using indicator kriging algorithm,truncated Gaussian simulation,object-based simulation and sequential indicator simulation,we can establish the sand body distribution model.Lastly,algorithms are optimized through sampling inspection so as to establish three-dimensional high-precision geological model under the conditions of different well densities and different development stages.It may contribute to establishing 3D geological model in some oilfields with similar geological backgrounds.A comparison shows that the optimized indicator kriging and sequential indicator simulation can better characterize geological features of the target area.
This paper deals with optimizing algorithms of lithologic modeling.Firstly,under the guidance of high resolution sequence stratigraphy,geological,outcrop,seismic,logging and other static data are applied to the fullest possible extent.The logging data advantage of high vertical resolution and the seismic data advantage of rich lateral information are exploited to the full to establish the high accuracy isochronous stratigraphic model under the restraint of geological regularity.Then,taking the petrographic data obtained from well log data as the condition data,and using indicator kriging algorithm,truncated Gaussian simulation,object-based simulation and sequential indicator simulation,we can establish the sand body distribution model.Lastly,algorithms are optimized through sampling inspection so as to establish three-dimensional high-precision geological model under the conditions of different well densities and different development stages.It may contribute to establishing 3D geological model in some oilfields with similar geological backgrounds.A comparison shows that the optimized indicator kriging and sequential indicator simulation can better characterize geological features of the target area.
引文
[1]Hirsche K,Boerner S,Kalkomey C,et al.Avoid pitfalls in geosta-tistical reservoir characterization:a survival guide[J].The leading edge,1998,17(4):493-504.
[2]郭燕华,袁士义,宋新民.密井网区辨状河道砂体精细地质建模方法研究[J].地球学报,2003,24(Z1):294-298.
[3]刘永社,印兴耀,贺维胜.空间相关分析因素对储层建模中克里金估计结果的影响[J].石油大学学报:自然科学版,2004,28(2):24-27.
[4]李少华,张昌民,汤军.顺序指示模拟方法及其在濮城油田储层非均质性研究中的应用[J].江汉石油学院学报,1999,21(1):13-17.
[5]黄沧钿.应用改进的截断高斯模拟算法建立相分布模型[J].新疆石油地质,2002,23(2):158-159.
[6]胡雪涛,李允.储层沉积微相的随机模拟及其对比研究[J].西南石油学报,2000,22(1):16-19.
[7]李少华,张昌民,尹艳树.河流相储层随机建模的几种方法[J].西安石油学院学报,2003,18(5):10-16.
[8]矫希国.变差函数参数计算[J].地质评论,1997,43(6):658-663.
[9]王仲林,徐守余.河流相储集层定量建模研究[J].石油勘探与开发,2003,30(1):75-78.
[10]吕晓光,姜彬,李洁密井网条件下的储层确定性建模方法[J].大庆石油地质与开发,2001,20(5):19-24.
[11]段天向,刘晓梅,张亚军,等.Petrel建模中的几点认识[J].岩性油气藏,2007,19(2):102-107.
[2]郭燕华,袁士义,宋新民.密井网区辨状河道砂体精细地质建模方法研究[J].地球学报,2003,24(Z1):294-298.
[3]刘永社,印兴耀,贺维胜.空间相关分析因素对储层建模中克里金估计结果的影响[J].石油大学学报:自然科学版,2004,28(2):24-27.
[4]李少华,张昌民,汤军.顺序指示模拟方法及其在濮城油田储层非均质性研究中的应用[J].江汉石油学院学报,1999,21(1):13-17.
[5]黄沧钿.应用改进的截断高斯模拟算法建立相分布模型[J].新疆石油地质,2002,23(2):158-159.
[6]胡雪涛,李允.储层沉积微相的随机模拟及其对比研究[J].西南石油学报,2000,22(1):16-19.
[7]李少华,张昌民,尹艳树.河流相储层随机建模的几种方法[J].西安石油学院学报,2003,18(5):10-16.
[8]矫希国.变差函数参数计算[J].地质评论,1997,43(6):658-663.
[9]王仲林,徐守余.河流相储集层定量建模研究[J].石油勘探与开发,2003,30(1):75-78.
[10]吕晓光,姜彬,李洁密井网条件下的储层确定性建模方法[J].大庆石油地质与开发,2001,20(5):19-24.
[11]段天向,刘晓梅,张亚军,等.Petrel建模中的几点认识[J].岩性油气藏,2007,19(2):102-107.
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