论文部分内容阅读
道检距的大小决定着空间采样频率的高低,也影响到地震资料中的假频问题。模拟实验和生产资料表明:大炮检距有利于复杂盖层或高阻抗吸收层情况下的地震资料成像;因地制宜地灵活选择震源及激发方式可以获取更宽、更高频的地震信号;观测系统设计应重视地震波场的连续性,面积观测系统是替代对称采样观测系统的较理想方式。随着勘探对象隐蔽性的增加以及设备和技术的不断改进,今后的地震资料采集必然会向高密度、小道距、单检波器方向发展。
Road size determines the size of the spatial sampling frequency of high and low, but also affect the seismic data in the aliasing problem. The simulation experiments and production data show that the large offset can be used to image the seismic data in the condition of complex caprock or high-impedance absorber layer. The seismic source signals and excitation modes can be selected flexibly according to local conditions to obtain the seismic signals of wider and higher frequency. The observing system design Should pay attention to the continuity of the seismic wave field, the area observation system is an alternative to symmetrical sampling observation system is a more ideal way. With the increase of concealment of exploration objects and the continuous improvement of equipment and technology, seismic data acquisition in the future will inevitably develop in the direction of high density, small track and single detector.