Novel rubber packing for oil field pumping wellhead seal
A sealing and packing technology, applied in the directions of sealing/isolation, wellbore/well components, earth-moving drilling, etc. It can improve the rigidity, avoid the phenomenon of dry grinding, and improve the operation efficiency.
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[0020] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the accompanying drawings. This embodiment is only used to explain the present invention, and does not constitute a limitation to the protection scope of the present invention.
[0021] Such as Figure 3-4 It shows an embodiment of a new type of rubber packing used for oil pumping wellhead sealing of the present invention, which includes a packing body 3 with a cylindrical helical structure, the middle of the packing body 3 is a polished rod through hole 5, and the packing body 3 At least one layer of fabric layer 1 is wrapped on the top, and the inner hole 4 is provided in the packing body 3, and the strength strengthening thread 2 is arranged in the packing body 3, and the strength strengthening thread 2 is arranged in a spiral, and it and the packing body 3 The structure matches the structure, the inner hole 4 is wedge-shaped, the p...
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