A measurement method research for the ranging and guiding system based on the rotating magnetic field

Objective: There exist some problems after analysising of the method existed. The writer present a new algorithm of the system of RMRS. Methods: Analysis the signals in the three-axial fluxgate again, thereafter reconstruct the signal model. Based on the spectral modification and Lagrange Interpolation, the writer get the phase information between signals. Finally, what present to us are two equations which contain the unkown quantities, which can calculate the relative direction between the two horizontal wells. Combined with the RMRS system, the algorithm can provide parameters to traditional logging system, thus we can get the relative location between the double horizontal well. Results: We program the algorithm and verify it by lots of locations. The experimental result is totally meeting the precision. Conclusion: This method can measure the relative position at any point within the signal’s effective range, greatly enhanced the convenience of RMRS’s operation.