Sliding way type releasing bridge plug
A slideway-type, hands-off technology, which is applied in wellbore/well components, earthwork drilling, sealing/isolation, etc., can solve the problems of low suspension capacity, early hand-off pressure, etc., to improve water shutoff and The efficiency of sealing the well, eliminating the effect of losing hands in advance and avoiding waste
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[0015] The technical scheme of the present invention will be further described below in conjunction with accompanying drawing, but should not be construed as limiting the present invention:
[0016] figure 1 It is the structural representation of the present invention Figure 1 , figure 2 It is the structural representation of the present invention Figure II , image 3 yes figure 1 Schematic diagram of the structure of the middle and upper central tube, Figure 4 yes image 3 A cross-sectional view in the direction of A-A, Figure 5 It is a schematic diagram of laying the outer wall of the upper central tube. As shown in the figure, a slideway-type drop-in bridge plug includes an upper joint 1, a connecting head 2, an upper central tube 3, a fishing head 4, a retaining spring 5, and a working cylinder 6 , upper connecting sleeve 7, unsealing pin 8, throwing hands 9, sliding pin 10, setting piston 11, locking block 1 12, setting pin 13, locking block 2 14, rubber ...
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