FIELD: mechanics.
SUBSTANCE: prior to cone crimping of end zone of the pipe and mechanical treatment in that zone which relates to cone male threaded part and male protrusion in order to obtain the male pipe element to be erected with a female pipe element for forming a sealed threaded pipe connection after diametric expansion the pipe is shaped throughout some part of its length in order to form a cylindrical inner surface that is connected through a chamfer to cylindrical inner surface of the protrusion, which is obtained by mechanical treatment.
EFFECT: invention improves connection reliability.
24 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| THREADED PIPE CONNECTION WHICH IS TIGHT AT INNER AND OUTER SERIES LOADS CREATED WITH PRESSURE | 2008 |
|
RU2449198C2 |
| PIPE CONNECTOR | 2014 |
|
RU2768320C2 |
| PIPE CONNECTOR | 2014 |
|
RU2664908C2 |
| PIPE CONNECTION WITH SELF-LOCKING THREAD, USED IN OIL INDUSTRY | 2015 |
|
RU2711367C2 |
| THREADED JOINT AND METHOD FOR ITS PRODUCTION | 2011 |
|
RU2561253C2 |
| METHOD OF MAKING THREADED JOINT | 2003 |
|
RU2301371C2 |
| CONNECTION WITH MULTIPLICITY OF SEALS FOR VERTICAL PIPES OF IMMERSED WATER-SEPARATING STRING | 1994 |
|
RU2117133C1 |
| SCREW CONNECTION AND ITS APPLICATION | 2020 |
|
RU2796572C1 |
| PIPE COMPONENT FOR DRILLING AND OPERATION OF HYDROCARBON WELLS AND RESULTING THREADED JOINT | 2010 |
|
RU2516775C2 |
| THREADED JOINT | 2010 |
|
RU2530689C2 |
