电火花震源在浅海检波器定位中的应用研究

Application study on spark source for hydrophone positioning during exploration on shallow sea

在浅海油气勘探中,水下检波器的准确定位,直接关系到地震成像的精度。现有的初至波定位方法和声学定位系统,在实际应用中都存在一定的优势和弊端。本文对这两种方法进行比较分析后进行取长补短,创新性地提出了利用电火花作为定位震源,借助初至波定位原理,进行检波器定位的新方法。通过检波器定位试验和资料处理,实现了检波器的实际位置的准确,验证了电火花震源的技术可行性。新方法提出了电火花作为震源使用的进一步要求,为今后的应用提供了依据。

During shallow-sea oil exploration, hydrophone positioning directly affects seismic imaging quality. First- break positioning and acoustic positioning are two mainly methods, yet they all have their advantages and disadvan tages. Comparative analysis has been given in this paper. Adopted their advantages, a novel position method has been presented, which applying spark as positioning source. Hydrophone positioning experiments have been done on shallow-sea. By the analysis of experimental data, the accuracy method has been verified. Further more, some special demand for the source has been presented. This gives a good basis for the application of the new method in the future.