Tool string locating device
A technology of positioning device and tool string, which is applied in construction and other directions, and can solve problems such as aggravated accidents, easy cutting of steel wires, and tool string falling into wells
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[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0041] figure 1 It is a structural schematic diagram of Embodiment 1 of the tool string positioning device of the present invention, refer to figure 1 , the embodiment of the present invention provides a tool string positioning device, including a magnetic signal generator 10 arranged at the bottom of the tool string 30 and a first magnetic signal detector 20 arranged at the first production main valve 41 of the Christmas tree 40, the first magnetic signal The signal detector 20 determines the position of the tool string 30 by s...
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