井中磁测与地面磁测资料联合反演

Joint Inversion of Surface and Borehole Magnetic Data

地球物理联合反演由于使反演问题的非唯一性得到有效的改善而越来越受到人们的重视。本文阐述了利用广义逆矩阵反演方法将井中与地面磁测数据进行联合反演的原理,并通过理论模型,论证了井地联合反演的可行性。最后利用大冶铁矿的地面和钻孔的磁测数据进行井地联合反演,证明了联合反演在实际运用中的优越性。

The Joint inversion method has been paid more attention because of its effective improvements in the non-uniqueness of geophysical inversion problem. In this paper, we expound the joint inversion principle of magnetic survey data in the borehole and on the ground using generalized inverse matrix inversion methods. The theoretical model demonstrates the feasibility of joint inversion with borehole and ground magnetic survey data. Finally we use the ground and drilling wells magnetic survey of Daye iron deposit to conduct borehole-well joint inversion. The result shows the advantage of the joint inversion of surface and borehole.