Braided Channel Reservoir Prediction Based on Matching Pursuit Time-Frequency Decomposition
Received date: 2013-08-19
Revised date: 2013-11-20
Online published: 2014-01-10
The braided channel sedimentary sand is a kind of common oil reservoir, which is characteristic of poor regularity structure and complicated oilwater relation. Seismic trace can be remodeled by wavelet decomposition, namely seismic trace is decomposed into a series of different attribute wavelets. The different reflection is obtained by the different attribute wavelets, thus prediction accuracy of braided channel sedimentary sand is improved. The seismic signal treated by matching pursuit method has good focusing capability of instantaneous spectrum, based on which the seismic signal is simply and rapidly remodeled by timefrequency decomposition. The seismic data of Kendong 701 area were processed based on matching pursuit timefrequency decomposition. The results showed that the interpretability of oil reservoir was improved and the seismic reflection characteristics and drilling data were well related. The braided channel sedimentary sands of Minghuazheng and Guantao group strata in Kendong 701 area were predicted, and the results showed that the reservoir distribution had the obvious braided channel features. Based on the predictions, three wells were located and the prediction and drilled results were consistent.
Yang Meng . Braided Channel Reservoir Prediction Based on Matching Pursuit Time-Frequency Decomposition[J]. Advances in Earth Science, 2014 , 29(1) : 104 -110 . DOI: 1001-8166(2014)01-0104-07
[1] | Miall A D. Lithofacies types and vertical profile models in braided river deposits:A summary[M]//Maiall A D, ed. Fluvial Sedimentology. Alberta, Canada: Canandian Society of Petroleum Geology Memoir 5, 1978:597-604. |
[2] | Wang Gaiyun, Yang Shaochun, Liao Feiyan, et al. Hierarchical structure of barrier beds and interbeds in Braided River reservoirs[J]. Natural Gas Geoscience, 2009, 20(3):378-383. |
[2] | [王改云, 杨少春, 廖飞燕, 等. 辫状河储层中隔夹层的层次结构分析[J]. 天然气地球科学, 2009, 20(3):378-383.] |
[3] | Yilmaz O. Seismic Data Analysis[M]. Tulsa:Society of Exploration Geophysicists, 1987. |
[4] | Wang Yanghua. Seismic time-frequency spectral decomposition by matching pursuit[J]. Geophysics, 2007, 72(1):13-20. |
[5] | Mallat S, Zhang Z. Matching pursuit with time-frequency dictionaries[J]. IEEE Transactions on Aignal Processing, 1993, 41(12):3 397-3 415. |
[6] | Zhang Fanchang, Li Chuanhui. Orthogonal time-frequency atom based fast matching pursuit for seismic signals[J].Chinese Journal of Geophysics, 2012, 55(1):277-283. |
[6] | [张繁昌, 李传辉. 基于正交时频原子的地震信号快速匹配追踪[J].地球物理学报, 2012, 55(1):277-283.] |
[7] | Castagna J P, Sun S J, Siegfried R W. Instantaneous spectral analysis: Detection of low-frequency shadows associated with hydrocarbons[J]. The Leading Edge, 2003, 22(2):120-127. |
[8] | Li Chuanhui, Zhang Fanchang. Variable resolution matching pursuit spectrum imaging of seismic signals[J]. Geophysical Prospecting for Petroleum, 2012, 51(3):213-218. |
[8] | [李传辉, 张繁昌. 地震信号可变分辨率匹配追踪频谱成像方法[J]. 石油物探, 2012, 51(3):213-218.] |
[9] | Feng Bin, Zhao Fenghua, Wang Shuhua. Application of spectral decomposition technique in fluvial sand body prediction[J]. Advances in Earth Science, 2012, 27(5): 510-514, doi:10.11867/j.issn.1001-8166.2012.05.0510. |
[9] | [冯斌, 赵峰华, 王淑华. 地震分频解释技术在河道砂预测中的应用[J]. 地球科学进展, 2012, 27(5): 510-514, doi:10.11867/j.issn.1001-8166.2012.05.0510.] |
/
〈 |
|
〉 |