基于电火花震源的微测井技术在复杂沙漠地区的应用研究

Micro-well logging techniques based on spark source in complex desert areas

塔克拉玛干沙漠西缘MX地区属于复杂沙漠地表区域之一,以往地震勘探中表层调查采用雷管激发的微测井方法,在西部地区注重社会维稳和反恐形势的前提下,该作业方式存在一定的安全风险.目前,一种基于电火花震源的微测井方法在我国东部复杂水网地区的表层调查中取得了较好的效果,因此我们首次把电火花震源技术应用于西部复杂沙漠地区的表层调查中.在MX地区经过电火花震源与雷管震源的微测井对比试验,发现电火花震源技术能够满足微测井的技术要求,并采用电火花震源技术在该地区进行微测井数据采集,处理解释成果符合该地区表层特征.微测井成果数据经过基于初至反演的沙丘曲线算法计算后得出静校正量,并应用到该地区地震勘探资料的现场处理中,得到了较好的效果.

The MX area,western edge of the Taklimakan desert, belongs to one of the complex desert surface areas. In the past, the micro-well logging by detonator sources was used for the surface survey of seismic exploration, however, this operation method has certain security risks under the premise of focusing on social stability and anti-terrorism in the western region. At present, the micro-well logging method based on spark source has achieved good results in the surface survey of complex water network area of eastern China. Therefore, we apply spark source technology to the surface survey in the complex desert areas of western China for the first time. After the micro-well logging comparative experiments of spark source and detonator source in MX area, it is found that spark source technology can meet the technical requirements of micro-well logging, and using the spark source technology to collect data of micro-well logging in this area, the processing and interpretation results conform to the surface characteristics of this area. After calculating the micro-well logging results data which based on the dune curve algorithm of the first break inversion, we obtain the static correction data, then apply the static correction data to the field processing of seismic data in this area, and get a good result.