摘要
义东地区沙三中期砂砾岩体油藏是重要的勘探储量阵地,但因砂砾岩体速度与围岩相近,地震上表现为一组连续强反射及复波组合,如何有效辨识强反射屏蔽下的砂砾岩体反射成为勘探成功的关键。利用小波域信号重构技术有效拓宽地震资料频带,针对性解决复波反射的识别难题;运用子波分解重构技术针对性解决叠合成连续强反射的识别难题;运用针对性地震属性准确描述沙三中期砂砾岩体的展布特征,为义东地区勘探开发提供了依据。
The glutenite reservoirs are very important in the middle of the Es_3 in Yidong area. It shows a set of strong continuous complex wave reflection on seismic as the velocity of the glutenite is close to that of the surrounding rock, and it＇s the crucial to effectively identify glutenite reflection for the success of exploration. The frequency band of seismic data are widened effectively by the signal reconstruction in wavelet domain to identify the complex wave reflection, the superimposed strong continuous reflections are identified by wavelet decomposition reconstruction, distribution characteristics of glutenite body in the middle of Es_3 are described accurately by the specific seismic attributes, it provides the basis for the exploration and development in the Yidong.
出处
《油气地球物理》
2016年第2期9-13,共5页
Petroleum Geophysics
基金
国家油气重大专项课题"渤海湾盆地精细勘探关键技术"(2011ZX05006)资助
关键词
砂砾岩体
小波域信号重构技术
子波分解重构技术
义东地区
glutenite body
signal reconstruction in wavelet domain
wavelet decomposition reconstruction and Yidong area
