Self-Excited Codirectionally Magnetically Compensated Rotating Ranging Method

Figure 5

Magnetization field of different drilling models. (a) Magnetization field in parallel drilling. (b) Magnetization field in sinusoidal nonparallel drilling. In both two figures, the top red curve is the drilling well track, the middle graph is the fluctuation trend of the magnetization field, and the bottom blue curve is the peak-to-value of the magnetization field.

(a)

(b)