【摘要】 采集参数是构成观测系统的基础,它直接影响到地震成像的效果。塔里木盆地勘探情况复杂,针对复杂地区的采集设计,常规的采集参数论证方法显得片面、简单、不直观,难以满足复杂区地震勘探需求。为了提高观测系统参数论证的精度,提出了基于三维地质模型设计技术,对面元尺寸和最大炮检距两个常用采集参数进行了论证,提高了观测系统参数论证的精度,使得采集参数论证更合理,并从CRP观测系统属性、三维地质模型观测系统正演、三维地质模型照明分析技术等方面进行对比,优化了观测系统。将基于三维地质模型设计技术应用到了塔里木油田地震采集设计中,在实际应用中取得了良好的效果。更多还原

【Abstract】 Acquisition parameters are the basis to form the geometry,which affect the seismic imaging directly. The exploration in Tarim Basin is complicated,For the complex survey conditions in Tarim Basin,conventional argument methods of acquisition parameters seem partial,simple,non- intuitive,can hardly meet the demands of seismic exploration in complex area. In order to improve the accuracy of acquisition parameters,we applied the design technology of 3D geologic model,and demonstrated the two common acquisition parameters: bin size and maximum offset,which improves the accuracy of acquisition parameters,making the acquisition parameter demonstration more reasonable. What’s more,a comparison was made among CRP Observing System Properties,3D model observation system forward,model lighting analysis technology and son on so that the geometry is optimized. Applying the design technology of 3D geologic model into the seismic acquisition design for Tarim Oil Field,this technology achieved a good effect when it was applied in the actual work area.更多还原