摘要
P—SV转换波共接收点叠加道集相关算法在构造较复杂时不能正确计算静校量，专家学者根据纵波共接收点叠加道集构造对转换波静校正量进行了改正，但不能准确对比纵、横波叠加剖面。转换波多域迭代的方法可以不使用纵波资料解决构造量，具体做法是：①采用共接收点叠加道集相关算法计算检波点静校正量；②生成共炮点叠加剖面，并在叠加剖面上选择与共检波点叠加道集对应的层位；③利用共炮点叠加剖面上的层位对共接收点道集相关求取的静校正量进行构造改正；④重复②、③步骤到共炮点叠加能量不增加时为止。应用结果表明，该算法在实际资料处理中效果较好。
The common-receiver-point superimposed trace gathering algorithm for P-SV converted wave can not be used to correctly calculate the static corrected value when the underground structure tilts or is complicated. So, some specialists and scholars correct the static corrected value of the converted wave based on the common-receiver-point superimposed gathering structure of the P-wave. Due to the effect of some factors, such as P-wave/S-wave velocity, the P-S wave superimposed profile can not be compared accurately, while the method of the converted wave multidomain iteration can calculate the structural value without the P-wave data. The concrete steps are listed as follows： 1. Calculate the geophone static corrected value based on the common-receiver-point superimposed gathering algorithm ;2. generate the common-shot point superimposed profile, and select the horizon corresponding to the common geophone stack gathering on the stacking profile ;3. revise the structure according to the static corrected value obtained from the correlation between the horizon on the common-shot point stacking profile and the common-receiver-point gather;4, repeat Step 2 and Step 3 until the superimposed energy of the common-point stacking record ceasing to inrease. The application results indicate that the practical processing resuhs with this algorithm are better.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2010年第6期165-167,共3页
Petroleum Geology & Oilfield Development in Daqing
基金
基金项目：国家自然科学基金（40873035）、地球探测与信息技术四川省重点学科建设项目共同资助.
关键词
转换波
共接收点叠加道集
共炮点叠加道集
迭代
converted wave
common-receiver-point stacking gather
common-shot-point stacking gather
iteration
