Double-ended water plugging detection rod, overburden rock fissure drilling and measuring integrated device and drilling and measuring method
A water detection, double-ended technology, which is applied to the valve device, drill pipe, drill pipe and other directions of the wellbore/well, can solve the problem of undetectable, and achieve the effect of reducing workload, facilitating popularization and use, and avoiding undetectable.
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[0040] Such as figure 1 , the present invention proposes a double-ended water blocking detection rod, which includes a rod body 1, two ring-shaped sealing shells 2 made of elastic material and a pressure control valve.
[0041] The rod body 1 is provided with an axial blocking channel 101 and a water injection channel 102 ; the side wall of the rod body 1 is also provided with a water outlet 103 ; the water outlet 103 communicates with the water injection channel 102 .
[0042] Such as figure 2 with Image 6 , the two sealing shells 2 are set on the outer periphery of the rod body 1, and are respectively located at the upper and lower parts of the water outlet 103; the upper edge of each sealing shell 2 is sealed and connected with the outer periphery of the rod body 1; each sealing shell The lower edge of the layer 2 is sealed and connected to the outer periphery of the rod body 1; each of the sealing shell layers 2 and the outer wall of the rod body 1 form a closed cavity...
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