山区三维静校正方法研究  

A Research on Mountainous Region 3D Static Correction

作　　者：郎玉泉[1] 程怡[2] 惠俊刚 

机构地区：[1]中国煤炭地质总局物探研究院,河北涿州072750 [2]江苏煤炭地质物测队,江苏南京210046 [3]煤炭科学总院西安分院地震所,陕西西安710054

出　　处：《中国煤炭地质》2008年第6期36-39,共4页Coal Geology of China

基　　金：国家重大产业技术开发专项项目资助(发改办高技[2005]1255)

摘　　要：依托国家重大产业技术开发专项"西部煤炭资源高精度三维地震勘探技术,"对"山西国阳新能股份有限公司二矿390水平九采区高精度三维地震勘探"及山西阳泉五矿首采区老资料研究二个项目进行资料处理,以攻克影响勘探精度和分辨率的静校正问题。通过对二区块地震资料分别采用绿山折射静校正、综合折射静校正、层析静校正,发现综合折射静校正相对于绿山折射静校正,可以较好的解决静校正的短波长分量、长波长分量问题,更加准确的刻化出地质构造情况,而层析静校正能够更好地解决近地表横向速度变化大、地表没有同一稳定折射层、地表存在高速体等复杂地形的静校正问题,保证同相叠加和正确成像,提高资料的分辨率及勘探精度。Rely on the state major industrial technological development special project ＂Western China Coal Resource High Precision 3D Seismic Prospecting Technology＂, combined with National Development and Reform Commission mandatory ＂Shanxi Guoyang New Energy Co. Ltd No.2 Coalmine 390m Level No.9 Winning District High Precision 3D Seismic Prospecting＂ and ＂Research on Shanxi Yangquan No.5 Coalmine Existing Data＂ carried out data processing to solve static correction problems impact prospecting precision and resolution. Through the use of the Green Hill refraction statics, comprehensive refraction statics and tomographic statics to seismic data of two blocks respectively, have found the comprehensive refraction statics can solve short wavelength constituent and long wavelength constituent problems better than Green Hill refraction statics and interpret geological structures more accurate. While the tomographic refraction statics can solve complex relief area static correction problems better in cases of near-surface variable lateral velocity, no identical stable refraction layer on surface, high velocity existed on ground surface to ensure inphase stacking and correct imaging, improving data resolution and prospecting precision.

关 键 词：静校正 绿山折射静校正 综合折射静校正 层析静校正 

分 类 号：P631.4[天文地球—地质矿产勘探]