发明名称 |
HEAD SEALING GLAND FOR WELLS WITH ROD-TYPE PUMPS |
摘要 |
FIELD: oil production industry. SUBSTANCE: increased tightness of sealing gland under high pressure is achieved by using flat circular tapered collars installed in sealing gland body with bell mouth towards gas-liquid flow in well. Body of sealing gland is made up of two adjacent sections. End face of upper section is made in the form of pressing nut for compression of sealing stuffing in lower section when replacing collars in upper section. EFFECT: higher efficiency. 2 cl, 1 dwgi
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申请公布号 |
RU2105129(C1) |
申请公布日期 |
1998.02.20 |
申请号 |
RU19960104433 |
申请日期 |
1996.03.05 |
申请人 |
KUSHIN VIKTOR TIMOFEEVICH |
发明人 |
KUSHIN VIKTOR TIMOFEEVICH |
分类号 |
E21B33/03;(IPC1-7):E21B33/03 |
主分类号 |
E21B33/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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