摘要
宁夏吴忠银星二号煤矿地处丘陵地貌,区内相对高差较大,且被厚沙土层覆盖。开展三维地震工作,特殊地形地貌障碍会导致部分炮、检点偏移,部分厚沙土分布区会导致震源激发能量被吸收、检波器与地面耦合不好等情况出现,不利于地震波的传播,浅表层地震地质条件不一致,低降速带变化十分剧烈,存在一定的静校正等问题。针对上述问题,应积极采取改善激发接收条件措施,依据试验确定技术参数的原始数据质量保证技术路线;加强数据处理和解释工作,采用层析静校正与剩余静校正二者相结合方法,取得了较好的三维地震勘探效果。
Ningxia Wuzhong Yinxing No.2 Coal Mine is located in a hilly landform,with a relatively large height difference in the area,and is covered by a thick sandy soil layer.Carrying out 3D seismic work,special topographical obstacles will lead to the displacement of some shot and check points,and some thick sandy soil distribution areas would cause the excitation energy of the source to be absorbed,and the coupling between the geophone and the ground was not good,which was not conducive to the propagation of seismic waves.The seismic geological conditions were inconsistent,the low-velocity zone changed very drastically,and there were certain problems such as static correction.In response to the above problems,measures to improve the excitation and receiving conditions should be actively taken,a combination of tomographic statics and residual statics was used to obtain better 3D seismic exploration results.
作者
白晓飞
吴侠
邓国成
皮伟
Bai Xiaofei;Wu Xia;Deng Guocheng;Pi Wei(Henan Geological And Geophysical Exploration Engineering Technology Research Center,Zhengzhou 450009,China;Henan Institute of Geophysics and Spatial Information,Zhengzhou 450009,China)
出处
《能源与环保》
2022年第8期104-109,共6页
CHINA ENERGY AND ENVIRONMENTAL PROTECTION
基金
宁夏回族自治区地质勘查基金([2020]-11)。
关键词
三维地震勘探技术
地震解释
银星二号煤矿
厚沙土层
3D seismic exploration technology
seismic interpretation
Yinxing No.2 Coal Mine
thick sand and soil layer
