Rubber sleeve without copper sheet coating inner side face of sealing ring at lower end, packer and bridge plug
A sealing ring and inner surface technology, which is applied in the field of packers and bridge plugs, and the inner surface of the lower end sealing ring is not coated with copper skin. It can solve the problems of rubber casing splitting, sealing failure, and rubber casing loss of elasticity. To achieve the effect of preventing the rubber tube from splitting, preventing failure, and increasing the range of compressive strength
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[0064] The directions "up" and "down" described below are based on figure 2 described as a reference.
[0065] like figure 1 The compression packer 200 is shown with the cartridge 10 of the present application. The compression packer 200 is connected to the base pipe 30 and placed in the casing 40 . The compression packer 200 needs to separate different oil layers and water layers in the wellbore and withstand a certain pressure difference. Get out smoothly.
[0066] like figure 2 As shown, the rubber cartridge 10 is located in the annular space formed by the sleeve 40 and the central tube 30, and the rigid spacer ring 50 provides the first axial pressure F from top to bottom (ie, the first axial direction A) in the axial direction. 1 , in other embodiments, the rigid spacer ring 50 can also be removed and the first axial pressure F can be applied to the rubber cartridge 10 1 other components instead. like figure 2 As shown, the two ends of the rubber cartridge 10 a...
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