跨孔声波CT技术在新疆小热泉子铜矿勘查中的应用

Application of cross-hole acoustic wave CT exploration technique in Xiaorequanzi copper deposit,Xinjiang

为了在金属矿上推广井中声波CT技术的应用,在新疆小热泉子铜矿区进行了跨孔声波CT技术探测矿体的示范试验,取得了3对跨孔剖面的测量成果。试验结果表明,DST—4型声波CT勘查系统具备较高的实用性,获得两钻孔间平口距118.5 m的跨孔CT资料,证实了在大跨距条件下确定井间矿体的分布与探测井间盲矿的有效性。文章结合试验结果,讨论了CT资料解释和探测效果,提出了进一步改进方法技术的建议。

For the purpose of spread application of the cross-hole acoustic wave CT technique in the metal deposits,the case study was conducted in Xiaorequanzi copper deposit,Xinjiang.The technique was adopted for demonstration experiment and two pairs of cross-hole profile measurement results were obtained.The test results show that DST-4 acoustic wave CT exploration system has high practicality,and the obtained cross-hole CT data with 118.5m horizontal distance has proved that this technique is effective for determining the distribution and connection of interwell ore bodies and detecting blind ore bodies between drilled holes in large span conditions.Base on the above-mentioned experimental results,this paper discusses interpretation and detection effects of CT data,and puts forward suggestions for further improvement of this technique.