频谱成像技术在储层厚度预测中的应用
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摘要
基于薄层反射调谐原理的频谱成像技术,通过生成调谐能量体和一系列单频率的能量体,对储层厚度和储层横向变化进行有效描述。利用该技术对位于中国渤海辽东湾探区X构造东营组二段下段的一个典型岩性圈闭提取了振幅、频率等地震属性,目的层表现出强振幅、强调谐能量、低相对波阻抗、强高频吸收和衰减等含油气地球物理特征。利用频谱成像技术对X构造目标区油气层的空间展布进行了分析,定量预测了气层的厚度。后经钻井证实预测结果比较准确。
Spectral imaging technology based on thin bed reflecting tun- ing theory can effectively describe the lateral changes of sandstone and the thickness of reservoir by generating tuning energy volume and a series of single frequency energy volume.The technology was used to extract amplitude and frequency of a typical lithologic trap located in the lower second member of Dongying formation of X structure in Liaodong bay exploration area.The target layer dis- plays an obvious hydrocarbon bearing characteristics,such as strong amplitude,strong tuning energy,low relative wave imped- ance,strong attenuation and absorption of high frequency,etc. The technology was used to analyze the spatial attribution of target hydrocarbon zones of X structure and quantitatively predict the thickness of gas layer.The prediction results were proved accurate by the followed drilling information.
Spectral imaging technology based on thin bed reflecting tun- ing theory can effectively describe the lateral changes of sandstone and the thickness of reservoir by generating tuning energy volume and a series of single frequency energy volume.The technology was used to extract amplitude and frequency of a typical lithologic trap located in the lower second member of Dongying formation of X structure in Liaodong bay exploration area.The target layer dis- plays an obvious hydrocarbon bearing characteristics,such as strong amplitude,strong tuning energy,low relative wave imped- ance,strong attenuation and absorption of high frequency,etc. The technology was used to analyze the spatial attribution of target hydrocarbon zones of X structure and quantitatively predict the thickness of gas layer.The prediction results were proved accurate by the followed drilling information.
引文
1冯凯，查朝阳，钟德盈．反演技术和频谱成像技术在储层预测中的综合应用[J]．石油物探，2006，45(3)：262～266
2王西文．岩性油气藏的储层预测及评价技术研究[J]．石油物探，2004，43(6)：511～517
3鲍祥生，尹成，赵伟，等．储层预测的地震属性优选技术研究[J]．石油物探，2006，45(1)：28～33
4陈守田，孟宪禄．薄互层储层预测方法[J]．石油物探，2004，43(1)：33～36
5陈军，陈岩．地震属性分析在储层预测中的应用[J]．石油物探，2001，40(3)：94～99
6朱广生．地震资料储层预测方法[M]．北京：石油工业出版社，1995．1～239
7刘志斌，李绪宣，李幼铭，等．辽东湾31—6区块隐蔽油气藏的地球物理识别[J]．石油地球物理勘探，2006，41 (2)：198～203
8 Peyton L,Bottjer R,Partyka G.Interpretation of in- cised valleys using new 3-D seismic techniques:a case history using spectral decomposition and coherency [J].The leading Edge,1998,17(10):1294～1298
9 Partyka G,Gridley J,Lopez J.Interpretational applica- tions of spectral decomposition in reservoir character- ization[J].The leading Edge,1999,18(3):353～360
10徐丽英，徐鸣洁，陈振岩．利用谱分解技术进行薄储层预测[J]．石油地球物理勘探，2006，41(3)，299～302
11苑书金，董宁，于常青．地震波衰减技术在鄂尔多斯盆地储层预测中的应用[J]．石油物探，2006，45(2)：182～185
2王西文．岩性油气藏的储层预测及评价技术研究[J]．石油物探，2004，43(6)：511～517
3鲍祥生，尹成，赵伟，等．储层预测的地震属性优选技术研究[J]．石油物探，2006，45(1)：28～33
4陈守田，孟宪禄．薄互层储层预测方法[J]．石油物探，2004，43(1)：33～36
5陈军，陈岩．地震属性分析在储层预测中的应用[J]．石油物探，2001，40(3)：94～99
6朱广生．地震资料储层预测方法[M]．北京：石油工业出版社，1995．1～239
7刘志斌，李绪宣，李幼铭，等．辽东湾31—6区块隐蔽油气藏的地球物理识别[J]．石油地球物理勘探，2006，41 (2)：198～203
8 Peyton L,Bottjer R,Partyka G.Interpretation of in- cised valleys using new 3-D seismic techniques:a case history using spectral decomposition and coherency [J].The leading Edge,1998,17(10):1294～1298
9 Partyka G,Gridley J,Lopez J.Interpretational applica- tions of spectral decomposition in reservoir character- ization[J].The leading Edge,1999,18(3):353～360
10徐丽英，徐鸣洁，陈振岩．利用谱分解技术进行薄储层预测[J]．石油地球物理勘探，2006，41(3)，299～302
11苑书金，董宁，于常青．地震波衰减技术在鄂尔多斯盆地储层预测中的应用[J]．石油物探，2006，45(2)：182～185
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