Horizontal well cable protection device and application method

Specific implementation manner two:

[0025] Combine below figure 1 , 2 , 3, 4 illustrate this embodiment, a horizontal well cable protection device, including an out-well pulley frame 1, an in-well pulley frame 2, an in-well pulley 3, and an out-well pulley 4, the out-well pulley frame 1 and the in-well pulley frame 2 Fixed connection, the lower end of the inner well pulley frame 2 is a triangular structure that fits and connects to the corners of the wellhead, the inner well pulley 3 is rotatably connected to the well inner pulley frame 2, and the outer well pulley 4 is rotatably connected to the outer pulley frame 1. When in use, one end of the cable is connected to the traction device, and the other end of the cable extends into the well. The middle end of the cable is guided by rolling in the well 3 and outside the well 4, which can not only avoid the friction between the cable and the well wall, but also can pass through The rotation of the inner pulley 3 and the outer pulley

Specific implementation manner two:

[0026] Combine below figure 1 , 2 , 3, 4 illustrate this embodiment, this embodiment further explains the first embodiment, the two ends of the upper end surface of the outer well pulley frame 1 are rotatably connected with the lifting handle 7, and the horizontal well cable protection device can be rotated to It is perpendicular to the pulley frame 1 outside the well, and when the lifting handle 7 is not in use, it can be rotated to fit the pulley frame 1 outside the well.

Specific implementation manner three:

[0027] Combine below figure 1 , 2 , 3, 4 illustrate this embodiment. This embodiment further explains the first embodiment. The left end of the outer pulley frame 1 is fixedly connected with a magnetic marker 6, the magnetic marker 6, the inner pulley 3, and the outer pulley 4 In order to facilitate the measurement of the cable length, the underground cable connection is usually equipped with an induction device for detecting electromagnetic signal changes. When the cable passes through the magnetic marker 6, the electromagnetic pulse change is generated. The cable length is realized by capturing the electromagnetic pulse The measurement; this part is a common method for measuring downhole cable length, and the detection principle is the well-known principle of electromagnetic induction, so this manual does not give too much explanation on the device model and principle.