摘要
东海盆地X海域由于地质条件复杂,原有地震资料有效波能量不足,层间多次干扰严重,长期得不到A地层以下深部有效反射信号,致使深部地层成像困难。在分析深层成像困难的机理基础上,通过对多套参数的实验效果进行对比分析,认为得到X海域深部有效波波反射并成像的主要途径是寻找频带范围集中在40Hz以下、能量足够大的枪阵,并对采集参数的传统研究提出了新的认识。
Due to complicated geological conditions and lacking of existed seismic data in X trough indicated insufficient energy of effective wave and serious interbedding multiple interference,the seismic data in the deep X trough have not been acquired for a long time,which caused deep reflection and imaging difficult below Stratum A.On the basis of analysis of difficult imaging mechanism in the deep formation,by comparing the experimental effects of many sets of parameters it is considered that the major way to acquire effective image in the deep formation is to seek the large-volume gun array with the energy concentration below 40Hz.It provides a new understanding for traditional way of data acquisition.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2010年第5期219-223,共5页
Journal of Oil and Gas Technology
关键词
屏蔽层
有效能量
有效频谱
弹性振幅衰减
shielding horizon,effective energy,effective spectrum,elastic amplitude attenuation
