Blanking plug
A plug and sliding sleeve technology, which is applied in wellbore/well components, earthmoving, sealing/packing, etc., can solve the problems of easy blowout accidents and long plugging time, so as to prevent blowout accidents and work technology. Simple and easy to operate effect
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[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0033] See figure 1 . The occluder 10 provided by the embodiment of the present invention includes a central tube 27 having a first end 1 and a second end 2 opposite to each other, and the central tube 27 is close to the side walls of the first end 1 and the second end 2 A liquid inlet hole 26 and a liquid outlet hole 28 are respectively penetrated through the upper part; a sealing rubber sleeve 23 is sleeved outside the central pipe...
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