FIELD: drilling equipment. SUBSTANCE: body of pipe catcher has seat located between sealing member and tip mounted on face of body. Ring interacting with lower face of body is installed above sealing member. Faces of ring and seat facing sealing member are produced stepped and sealing member is placed between steps of bigger diameter. EFFECT: improved operational convenience and reliability. 2 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| EXTERNAL PIPE GRAB | 1992 |
|
RU2061836C1 |
| EXTERNAL PIPE CUTTER | 1993 |
|
RU2054521C1 |
| TUBING SPEAR | 2011 |
|
RU2462584C1 |
| DISCONNECTOR | 1993 |
|
RU2061833C1 |
| SPEAR | 2009 |
|
RU2410526C1 |
| WELL FISHING DEVICE | 2009 |
|
RU2410527C1 |
| EXTERNAL RELEASING SPEAR | 2002 |
|
RU2213201C1 |
| INTERNAL PIPE CATCHER | 2000 |
|
RU2183252C1 |
| INTERNAL RELEASING SPEAR | 1990 |
|
RU2014431C1 |
| PACKER WITH EXPANDABLE NOZZLE FOR SEPARATION AND SEALING OF PRODUCTION STRING | 2015 |
|
RU2582613C1 |
