井地地震CT技术及其应用  

Well-Ground seismic CT technology and its application

作　　者：李红立[1] 潘冬明[1] 徐红利[1] 

机构地区：[1]中国矿业大学,江苏徐州221008

出　　处：《煤田地质与勘探》2008年第3期71-74,共4页Coal Geology & Exploration

基　　金：国家自然科学基金项目(40574058)

摘　　要：井地地震是在井间地震方法基础上提出,其技术核心主要是观测系统设计以及数据的采集和处理。观测系统设计旨在增加探测目标的覆盖次数、均匀程度和提高工作效率;数据采集从震源和检波器两个方面优化,选用激发能量强、频率高、成本低、效率高的震源,以及灵敏度高、抗噪能力好的检波器;数据处理分为拾取初至、建立正演模型和反演层析成像。工程应用实例说明,井地地震具有很好的应用前景。The principle and characteristic of Well-Ground seismic technology are reviewed systematically based on crosshole seismic method. Special emphasis of the technology of Well-Ground seismic is superior in imaging resolution, studying scope, wild production efficiency and production cost, ect. The data acquisition system （observation system, ground seismic source and borehole seismic detector） and processing methods （ray tracing processing and tomography imaging） are discussed. Then, the application areas and development of Well-Ground seismic technology are recommended. Finally, the development and application prospects of Well-Ground seismic technology are forecasted.

关 键 词：井地地震 层析成像 直射线追踪 SIRT 

分 类 号：P631.4[天文地球—地质矿产勘探]