鄂尔多斯盆地盒8段气藏烃类检测技术研究
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摘要
鄂尔多斯盆地上古生界盒8段气藏属典型的低孔低渗的砂岩岩性气藏,受沉积环境的影响,盒8 段储层在盆地中较为发育,但储层段物性及含气性在横向上存在着严重的非均质性〔1〕。因此,在鄂尔多斯盆地利用地震烃类检测技术进行含气性预测,就成为寻找优质储层的关键技术。文章从SLG气田盒8段气藏入手,通过Aki-Richards公式AVO 建模、结合多波二维〔2〕地震资料,深入研究了SLG盒8段气藏的烃类检测方法。研究认为,在地震资料进行高保真振幅处理的基础上,采用AVO 技术对鄂尔多斯盆地盒8段砂岩气藏进行烃类检测是可行的。
The P sh 8 (eighth member of Shihezi Form ation, Permian) gas reservoirs in E’erduosi Basin belong in the typical sandst one lithologic ones with low porosity and low permeability. Owing to the influen ce of sedimentary environment, the P sh 8 reservoir is relatively developed in the basin, there exist, however, serious heterogeneities laterally in bot h petrophysical property and gas potential. Therefore it is very important for s urveying the excellent reservoir to predict gas potential by applying seismic by drocarbon detecting technique in the basin. Proceeding from the P sh 8 gas r eservoir in SLG field and through AVO modeling and calculating by Aki-Richards equation, the authors investigated thoroughly the hydrocarbon detecting method for the P sh 8 gas reservoir in the field in combination with the multiwave 2-D seismic data. Through investigation, it was considered that, on the basis of the high-fidelity amplitude processing of seismic data, it is feasible for the hydrocarbon detection of P sh 8 sandstone gas reservoirs in E’erduosi Basin to adopt the AVO technique.
The P sh 8 (eighth member of Shihezi Form ation, Permian) gas reservoirs in E’erduosi Basin belong in the typical sandst one lithologic ones with low porosity and low permeability. Owing to the influen ce of sedimentary environment, the P sh 8 reservoir is relatively developed in the basin, there exist, however, serious heterogeneities laterally in bot h petrophysical property and gas potential. Therefore it is very important for s urveying the excellent reservoir to predict gas potential by applying seismic by drocarbon detecting technique in the basin. Proceeding from the P sh 8 gas r eservoir in SLG field and through AVO modeling and calculating by Aki-Richards equation, the authors investigated thoroughly the hydrocarbon detecting method for the P sh 8 gas reservoir in the field in combination with the multiwave 2-D seismic data. Through investigation, it was considered that, on the basis of the high-fidelity amplitude processing of seismic data, it is feasible for the hydrocarbon detection of P sh 8 sandstone gas reservoirs in E’erduosi Basin to adopt the AVO technique.
引文
1 何自新,付金华等.苏里格大气田成藏地质特征.石油学报,24(2):253~2697
2 张永刚主编.油气地球物理技术新进展.北京:石油工业出版,2004:55~63
3 Adriansyah,蒋先勇.衰减和散射对AVO测量值的影响.天然气勘探与开发,2001
4 史松群等.苏里格气田低阻砂岩储层的含气性预测研究.石油地球物理勘探,2003;(1)
5 史松群,赵玉华.苏里格气田AVO技术的研究与应用.天然气工业,2002;(6)
2 张永刚主编.油气地球物理技术新进展.北京:石油工业出版,2004:55~63
3 Adriansyah,蒋先勇.衰减和散射对AVO测量值的影响.天然气勘探与开发,2001
4 史松群等.苏里格气田低阻砂岩储层的含气性预测研究.石油地球物理勘探,2003;(1)
5 史松群,赵玉华.苏里格气田AVO技术的研究与应用.天然气工业,2002;(6)
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