岩性气藏地质建模研究—以苏59区块为例
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摘要
苏59区块有效砂体连续性差,储层非均质性强,气水关系复杂。在对该区块气藏地质特征综合研究的基础上,以petrel软件为依托,结合单井资料、地震解释数据建立了工区的构造模型,通过对测井泥质含量曲线划分建立单井岩相模型,以砂岩密度、砂体宽厚比、趋势面约束等条件选取建模参数,采用序代指示算法建立三维岩相地质模型,进而在岩相控制下建立三维地质属性模型。建模结果表明:建模过程中选取的参数准确,地质模型与该区的地质认识符合程度较高,为准确评价气田的储层性质及开发潜力提供了可靠依据。
Su 59 block is characterized by poor continuity of effective sandbody,strong heterogeneity of reservoir and complicated gas and water relationship.In this paper,based on a comprehensive study on reservoir geology,single-well and seismic-interpretation data,a structural model is first established by Petrel software;and then,a single-well lithofacies model is established according to shale content obtained from well-logging curves;thirdly,some modeling parameters are acquired according to sandstone density,width / thickness ratio of sandbody and trend-surface constraint,and a 3D lithofacies geological model is also established by means of sequence indicator algorithm;at last,a 3D geological attribute model is established.Results show that not only the acquired parameters during modeling are accurate but also the geological model is in high agreement to some geological realizations.
Su 59 block is characterized by poor continuity of effective sandbody,strong heterogeneity of reservoir and complicated gas and water relationship.In this paper,based on a comprehensive study on reservoir geology,single-well and seismic-interpretation data,a structural model is first established by Petrel software;and then,a single-well lithofacies model is established according to shale content obtained from well-logging curves;thirdly,some modeling parameters are acquired according to sandstone density,width / thickness ratio of sandbody and trend-surface constraint,and a 3D lithofacies geological model is also established by means of sequence indicator algorithm;at last,a 3D geological attribute model is established.Results show that not only the acquired parameters during modeling are accurate but also the geological model is in high agreement to some geological realizations.
引文
1唐俊伟,贾爱林,何东博,等.苏里格低渗强非均质性气田开发技术对策探讨[J].石油勘探与开发,2006,33(1):107-110.
2陈恭洋.碎屑岩油气储层随机模拟[M].北京:地质出版社,2000
3陈凤喜,卢涛,达世攀,等.苏里格气田辫状河沉积相研究及其在地质建模中的应用[J].油地质与工程,2008:22(2):21-24.
4郭燕华,袁士义,宋新民.提高辫状河流相砂体储集层骨架模型精度的新方法[J].石油勘探与开发,2004,31(11):110-112.
5 Dreyer J.Geometry and facies of large-scale flow units in flu-vial-dominated fan-delta front sequence.in:advances inreservoir geology,Edited by Ashton M.Published by The Geo-logical Society,London,1993:135-174.
6李元觉,李跃刚,卢涛.三角洲平原网状河砂体的地质概念模型及修正[J].石油勘探与开发,2002,29(5):69-70.
7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.
8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].中国石油勘探,2007:12(1).12-16.
9石晓燕.Petrel软件在精细地质建模中的应用[J].新疆石油地质,2007:28(6).773-774.
2陈恭洋.碎屑岩油气储层随机模拟[M].北京:地质出版社,2000
3陈凤喜,卢涛,达世攀,等.苏里格气田辫状河沉积相研究及其在地质建模中的应用[J].油地质与工程,2008:22(2):21-24.
4郭燕华,袁士义,宋新民.提高辫状河流相砂体储集层骨架模型精度的新方法[J].石油勘探与开发,2004,31(11):110-112.
5 Dreyer J.Geometry and facies of large-scale flow units in flu-vial-dominated fan-delta front sequence.in:advances inreservoir geology,Edited by Ashton M.Published by The Geo-logical Society,London,1993:135-174.
6李元觉,李跃刚,卢涛.三角洲平原网状河砂体的地质概念模型及修正[J].石油勘探与开发,2002,29(5):69-70.
7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.
8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].中国石油勘探,2007:12(1).12-16.
9石晓燕.Petrel软件在精细地质建模中的应用[J].新疆石油地质,2007:28(6).773-774.
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