20DX防水检波器在塔里木草湖二维地震勘探中的应用

Application of the RGI-20DX-10Hz waterproof geophone for 2D seismic exploration in the Tarim Caohu project

塔河草湖地区到处分布着大小不等的湖泊、沼泽、河流,在地震勘探中为检波器的埋置带来一定的难度,为此,引入了20DX防水检波器。通过与普通陆用检波器的技术参数进行比较,并结合现场试验资料分析表明:两种检波器的能量、信噪比和频率差异不大,20DX防水检波器满足本次地震勘探要求。应用处理技术对这两种检波器接收资料的信噪比、频谱和成像效果进行分析认为:20DX防水检波器获得的资料,从浅至深反射波组清晰、反射层位明显、连续性较好、信息丰富,在该地区应用是成功的。

Lakes, swamps, rivers and other water network of different sizes located the Caohu region in Tahe. It is very difficult to lay out geophones for seismic exploration. Therefore, the RGI--20DX-10Hz waterproof geophones are adopted. According to comparison between the technology parameters of the RGI- 20DX-10Hz waterproof geo- phones and that of the general land geophone, combined with the field test data analysis, the results showed that there is almost no difference of the energy, signal-to-noise ratio and frequency of the two geophones, the RGI- 20DX-10Hz waterproof geophone is able to meet the requirements of the seismic exploration. By the application of processing technology, it had been analyzed that signal-to-noise ratio, spectrum and imaging effect of single shots and sections of the data that had been acquired from the two geophone in the production. The data based on the RGI -20DX-10Hz waterproof geophone has clear and continuous events and abundant reflection information and it suc- ceeded in the region.