Pressure expansion type soluble bridge plug
A bridge plug and expansion head technology, applied in the field of pressure-expandable dissolvable bridge plugs, can solve the problems of many structural components, long length and small inner diameter of dissolvable bridge plugs, and achieves simple structure, accurate setting force, and reduced Effect of Tool Length
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[0022] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0023] refer to figure 1 , an inflatable dissolvable bridge plug, including a pull rod 1, the upper end of the pull rod 1 is provided with threads for connecting with the setting tool, and the lower end is provided with threads for connecting with the upper end of the pull cap 11 ;
[0024] Tie rod 1 is sequentially installed with expansion head 2, central tube 3, cone 7, slips 9, and base 10 from the upper end to the lower end;
[0025] The lower end of the expansion head 2 is threadedly connected to the upper end of the central tube 3, and the rubber tube 4, the rubber tube shoulder protection component 5, the limiting joint 6, the locking ring 7 and the cone 8 a...
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