Gas well blowout prevention box packing taking-out device

The utility model relates to a device for taking out packing of a blowout prevention box of a gas well. The problem that when packing in an existing high-pressure blowout prevention box is replaced, the packing cannot be taken out when the packing slips and is frozen and blocked is mainly solved. Th...

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Bibliographic Details
Main Authors WANG LEI, LI RUI, WU HUALEI, ZHANG HONGYU, SONG YANZHANG, MOU TENG
Format Patent
LanguageChinese
English
Published 06.12.2019
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Summary:The utility model relates to a device for taking out packing of a blowout prevention box of a gas well. The problem that when packing in an existing high-pressure blowout prevention box is replaced, the packing cannot be taken out when the packing slips and is frozen and blocked is mainly solved. The device is characterized in that a large-pitch threaded nail (6) is arranged at the front end of aninner shaft rod (1), and a limiting groove (3) is longitudinally formed in the rear end of the inner shaft rod (1); the inner shaft rod (1) penetrates through the middle rotating sleeve (2), pin holes are vertically and oppositely formed in the T-shaped end of the rear portion of the middle rotating sleeve opposite to the inner shaft rod (1), positioning pins (4) are screwed in the holes respectively, and the inner shaft rod (1) fixes the T-shaped middle rotating sleeve (2) through the positioning pins (4). And the outer part of the middle rotating sleeve (2) is in threaded connection with afixed pup joint (5). Accor
Bibliography:Application Number: CN201920336152U