FIELD: mining.
SUBSTANCE: surface area of a thrust face of a coupling of a threaded connection in a maximum worn-out state is equal to surface area of a critical section of a nipple, which is multiplied by a coefficient of optimum stress of pre-tightening and at the same time, the surface area of the thrust face of the nipple, due to which optimum values of the main parameters of the connection are provided.
EFFECT: improving reliability and efficiency of functioning of a drill column both at drilling and during performance of lowering and lifting operations.
3 dwg, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| DETACHABLE ADAPTER | 2016 |
|
RU2646280C2 |
| DOUBLE-SHOULDERED THREADED JOINT OF DRILL PIPES | 2016 |
|
RU2616950C2 |
| THREADED PIPE JOINT | 2011 |
|
RU2518702C2 |
| GEROTOR HYDRAULIC MOTOR | 2008 |
|
RU2386003C1 |
| THREADED DOUBLE-SUPPORT JOINT WITH HIGH TRANSFERRED TORSION TORQUE | 2008 |
|
RU2386887C1 |
| THREADED CONNECTION OF DRILL PIPES | 2012 |
|
RU2521123C2 |
| THREADED CONNECTION OF THE DRILL STRING | 2022 |
|
RU2796709C1 |
| QUICK-RELEASE TIGHT JOINT OF TUBULAR PARTS AND METHOD OF ITS ASSEMBLY-DISASSEMBLY | 2010 |
|
RU2446266C1 |
| DRILL PIPE JOINT AND METHOD FOR MANUFACTURE THEREOF | 2016 |
|
RU2669018C2 |
| DRILL PIPE THREADED JOINT | 2012 |
|
RU2508491C1 |
