摘要
塔里木盆地克深地区地表起伏大、地下构造复杂,造成资料采集困难。针对工区资料信噪比低、成像不精确的问题,采用已有的采集资料进行叠前深度偏移退化性处理,得到排列长度、接收线数、炮密度等基本观测参数。在此基础上,构建了该区的地球物理模型,计算目标层的照明度,根据共反射点能量均匀及接收效率最大原则,对炮检距、接收线数和炮密度3个采集参数进行了优化设计。研究结果对提高复杂山地地震资料采集质量具有指导意义。
The surface condition of Keshen area,Tarim Basin is very rough,besides,the subsurface structure of it is very complicated too,causing a lot of difficulties in data collection.In light of the low signal to noise ratio and inaccuracy of imaging,a stack depth migration treatment on the existing data is made at first,then the array length,receiving lines,guns density and other basic observation parameters are acquired.Based on the above parameters,the geophysical model of this area is constructed and the illumination of the target stratum is calculated too.According to the Common Reflection Point(CRP) energy homogeneous principle and maximum receiving efficiency,geophone distance,receiving lines and guns density are optimized.The research results are instructive to improve the quality of seismic data acquisition in complex mountainous area.
出处
《西南石油大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第4期179-184,共6页
Journal of Southwest Petroleum University(Science & Technology Edition)
基金
国家科技重大专项"山地三维地震采集攻关设计与论证"(2008ZX05046-01)
关键词
塔里木盆地
地震采集
观测系统
照明度
能量覆盖
反射能量
共反射点
Tarim Basin
seismic data acquisition
observation system
illumination
energy coverage
reflected energy
common reflection point
