An expandable packer capable of pressurization and setting and its application method
A packer and expansion technology, applied in the direction of sealing/isolation, earthwork drilling, wellbore/well components, etc., can solve the problems of ineffective setting and inability to meet the requirements of delamination, so as to prevent interlayer fluid Interference with pressure, good expansion effect, and pressure increase effect
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0029] Such as Figure 1-2 As shown, an expandable packer that can be pressurized and set according to the present invention includes an upper connector 1 of the packer, an upper retaining bowl 2 is screwed under the upper connector 1, and the inside of the upper retaining bowl 2 is connected with glue The upper end of the barrel 3 is screwed, and the inside of the rubber barrel 3 is sleeved with an outer central tube 4, and a number of pressure guide holes are eve...
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