A method for forming a magnetic write pole with a trapezoidal cross-section is described. The image-related working status is related to display characteristic of the projected image. The drill string in the uncased interval of the well progresses toward the region of interest, using resistivity data at similar depths to identify a casing point while the drill bit advances toward but does not penetrate the region. First and second transmission devices are operatively arranged between the longitudinal frame part of each door and a respective A-column and B-column to achieve a closure between the door and the frame structure.