港浅8-6井区河道砂体储层预测的综合研究
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摘要
在对多种方法储层预测结果对比的基础上,采用三维可视化地震解释软件对大港油田港浅8-6井区明化镇组河道砂体进行了预测,提出了河道砂体三维可视化地震解释储层预测方法。其思路是:利用三维可视化解释软件的可视化解释功能,快速扫描数据体,寻找河道砂体,砂体与构造背景或与井点含油气信息结合寻找含油气潜力砂体,然后对潜力砂体进行预测和描述。该方法对于港东开发区平面上快速变化、纵向上频繁叠置的明化镇组曲流河薄砂体的预测取得了较好的效果,预测的NmⅢ4-2油层砂体已被完钻的7口新井所证实。三维可视化地震解释储层预测法可实现油层厚度仅为3．5-6．6 m的河道薄砂体的精细描述。
Based on the correlation and evaluation to various reservoir prediction methods, 3-D visualization seismic interpretation software is selected to predict the Ming-huazhen formation channel sand in the periphery of Gangdong development area, GQ8-6 well block, in Beidagang oilfield. Firstly, the data volume is quickly scanned by visualization interpretation function to search channel sand, then the sand body was connected with the structural setting or the oil-bearing information at well point to seek the potential sand, finally, the prediction and description to potential sand are carried out. Although thin meandering sands change rapidly both horizontally and vertically, using above-mentioned method, we predict the reservoir accurately. The prediction accuracy to the information with a thickness of only 3. 5-6. 6m is proved by newly drilled 7 wells aiming at the NmⅢ4-2 of GQ8-6, The above-mentioned visualization prediction method can not only be used to predict thin fluvial sands, it can also provides reference to other reservoir prediction methods.
Based on the correlation and evaluation to various reservoir prediction methods, 3-D visualization seismic interpretation software is selected to predict the Ming-huazhen formation channel sand in the periphery of Gangdong development area, GQ8-6 well block, in Beidagang oilfield. Firstly, the data volume is quickly scanned by visualization interpretation function to search channel sand, then the sand body was connected with the structural setting or the oil-bearing information at well point to seek the potential sand, finally, the prediction and description to potential sand are carried out. Although thin meandering sands change rapidly both horizontally and vertically, using above-mentioned method, we predict the reservoir accurately. The prediction accuracy to the information with a thickness of only 3. 5-6. 6m is proved by newly drilled 7 wells aiming at the NmⅢ4-2 of GQ8-6, The above-mentioned visualization prediction method can not only be used to predict thin fluvial sands, it can also provides reference to other reservoir prediction methods.
引文
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2蔡希玲,闫忠,崔全章等．砂泥岩薄互层分辨率的理论分析[J]．石油物探,2004,43(3):229-233
3张军华,陆文志,王月英等．薄层地球物理特征再认识[J]．石油物探,2004,43(6):541-546
4马劲风,王学军．波阻抗约束反演中的约束方法研究[J]．石油物探,2000,39(2):1-12
5朱文春,宋鹍,高印军等．港东油田一区河流相储集层滚动勘探方法[J]．石油勘探与开发,2004,31(1):73- 75
6曾忠,魏修成,刘洋．地震属性的分类及应用研究[J]．石油地球物理勘探,2004,39(东部会议专刊):220- 222
7祁德清,丁正青,杨军等．地震技术在下第三系戴南组薄层岩性油藏开发中的应用[J]．勘探地球物理进展, 2004,27(3):195-200
8陈方鸿,王树平,李志政等．三维可视化地震相分析在沉积相研究中的应用[J]．石油勘探与开发,2005,32 (3):73-75
9庄博,刘玉琴．三维可视化技术在陈家庄地区砂砾岩储集层描述中的应用[J]．石油勘探与开发,2005,32(3): 64-66
10云美厚．地震分辨率[J]．勘探地球物理进展,2005,28 (1):12-18
11冉启文,谭立英．小波变换与分数傅里叶变换理论及应用[M]．黑龙江哈尔滨:哈尔滨工业大学出版社,2001．1-301
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