南堡凹陷拾场次凹沙三段优势储层预测技术
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摘要
南堡凹陷拾场次凹沙三段为扇三角洲沉积,储层薄,非均质性强,物性差异大,有效识别和预测优势储层是精细勘探开发的关键,单一的技术方法无法满足储层预测准确性与精度的要求。以谱反演高分辨率处理成果资料为基础,开展地震属性分析与优选,利用优势储层的敏感属性进行多属性融合与反演,将反演成果作为变量进行地震约束储层建模,最终预测优势储层分布。在南堡凹陷拾场次凹高5区块的应用研究表明,预测结果与检验井符合率为89.2%,依据储层预测成果实施的新钻井达到预期目的。
The Sha3 Member in Shichang Subsag of Nanpu Depression is composed of fan delta deposits,with thin reservoir thickness,strong reservoir heterogeneity and significantly different physical properties. Effective identification and prediction of advantaged reservoirs are critical for refined exploration and development,since a single technical method cannot meet the requirements for reservoir prediction accuracy and precision. Based on the data high- resolution processed by spectral inversion,seismic attribute analysis and optimization are carried out. The sensitive attributes of advantaged reservoirs are used to conduct multi- attribute integration and inversion; the inversion results are taken as the variations for seismic restriction and reservoir modeling in order to predict the distribution of advantaged reservoirs. The results indicate in Gao5 Block of Shichang subsag in Nanpu Depression,the coincidence rate between the prediction results and drilling results is 89. 2%,thus the new wells drilled based on reservoir prediction results have achieved the desired purpose.
The Sha3 Member in Shichang Subsag of Nanpu Depression is composed of fan delta deposits,with thin reservoir thickness,strong reservoir heterogeneity and significantly different physical properties. Effective identification and prediction of advantaged reservoirs are critical for refined exploration and development,since a single technical method cannot meet the requirements for reservoir prediction accuracy and precision. Based on the data high- resolution processed by spectral inversion,seismic attribute analysis and optimization are carried out. The sensitive attributes of advantaged reservoirs are used to conduct multi- attribute integration and inversion; the inversion results are taken as the variations for seismic restriction and reservoir modeling in order to predict the distribution of advantaged reservoirs. The results indicate in Gao5 Block of Shichang subsag in Nanpu Depression,the coincidence rate between the prediction results and drilling results is 89. 2%,thus the new wells drilled based on reservoir prediction results have achieved the desired purpose.
引文
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[2]曹中宏,杨晓利,康海军,等.南堡凹陷北部沙三段岩性圈闭识别与评价[J].石油天然学报,2012,34(3):80-83.
[3]曹鉴华,邱智海,郭得海,等.叠后地震数据的谱反演处理技术及其应用浅析[J].地球物理学进展,2013,28(1):387-393.
[4]熊冉,刘玲利,刘爱华,等.地震属性分析在轮南地区储层预测中的应用[J].特种油气藏,2008,15(2):32-34.
[5]纪彤洲,丘津,王冰.应用地球物理信息预测河道砂体方法及应用效果分析[J].特种油气藏,2003,10(S0):1129-1133.
[6]陈遵德.储层地震属性优化方法[M].北京:石油工业出版社,1998.47-50.
[7]于正军.地震属性融合技术及其在储层描述中的应用[J].特种油气藏,2013,20(6):6-9.
[8]徐德英,周江羽,王华,等.渤海湾盆地南堡凹陷东营组地层水化学特征的成藏指示意义[J].石油实验地质,2010,32(3):285-289.
[9]刚文哲,仵岳,高岗,等.渤海湾盆地南堡凹陷烃源岩地球化学特征与地质意义[J].石油实验地质,2012,34(1):57-61.
[10]刘文岭.地震约束储层地质建模技术[J].石油学报,2008,29(1):64-68.
[11]李建青,蒲仁海,武岳,等.江苏黄桥地区龙潭组沉积相与有利储层预测[J].石油实验地质,2012,34(4):395-399.
[12]唐洪,廖明光,胡俊,等.基于孔隙旋回建模单元的碳酸盐岩储层建模研究[J].石油实验地质,2012,34(3):330-333.
[13]张兆辉,苏明军,刘化清,等.精细地震层序地层分析技术及应用——以渤海湾盆地歧口凹陷滨海地区为例[J].石油实验地质,2012,34(6):648-652.
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