Packer for sand-flushing, wax-scrapping and drunkeness-checking
The utility model relates to a play checking packer for sand flushing and wax scraping which is mainly used for solving the defects that the existing play checking packer needs put down a pipe pole for many times in the process of construction and the labor intensity of the worker is high. The utili...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The utility model relates to a play checking packer for sand flushing and wax scraping which is mainly used for solving the defects that the existing play checking packer needs put down a pipe pole for many times in the process of construction and the labor intensity of the worker is high. The utility model is characterized in that both ends of a central pipe (3) are respectively connected internally with one end of an upper and a lower joints (1, 11), the upper part of the lower joint (1) is orderly connected with a valve sleeve (4) and a lower glue canister sleeve (8), and the lower end of the upper joint (11) is externally connected with an upper glue canister sleeve (10). A glue canister (9) which is fixed via a vulcanization core (7) is arranged between the upper and the lower glue canister sleeves (8, 10) and the central pipe (3), a spring (2) and a valve (5) are arranged in a cavity body which is formed between the valve sleeve (4) and the central pipe (3), and a sliding sleeve (6) is arranged at the middle part inside the central pipe (3). The play checking packer for sand flushing and wax scraping organically combines three procedures of sand flushing, wax scraping and play checking together which can be completed by using a pipe pole once, the labor intensity of the worker is reduced, and the operation efficiency is improved. |
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