Controllable dissolvable well cementation rubber plug
A technology of cementing rubber plugs and rubber bowls, which is applied in wellbore/well parts, earthwork drilling, sealing/isolation, etc., which can solve problems such as cumbersome construction procedures, complex tool structures, and difficult construction, and achieve the goal of avoiding jetting. Hole operation, easy to use and operate, and efficient construction
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[0022] The present invention will be further described below in conjunction with the drawings:
[0023] See Figure 1 to Figure 3 , A controllable dissolution cementing rubber plug, comprising a mandrel 1, a sealing core 2, a lock cap 3, a liquid cylinder 5, a rubber cylinder 7, a rubber bowl 9, a sealing body 10 and a dissolvable core 12; It is a hollow cylindrical structure, the sealing core 2 is arranged inside one end of the mandrel 1, and the other end of the mandrel 1 is sleeved with a sealing body 10, and a cavity is formed between the inside of the sealing body 10 and the end of the mandrel 1. The dissolvable core 12 is arranged in the cavity; the outer side of the mandrel 1 at one end of the sealing body 10 and the outer side of the other end of the mandrel 1 are sequentially sleeved with a rubber bowl 9, a rubber cylinder 7, a liquid cylinder 5 and a lock cap 3.
[0024] The inner diameter of the two ends of the mandrel 1 is smaller than the middle diameter, and the seal...
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