| 发明名称 |
PRODUCTION OF SEAMLESS COLD-FORMED OIL-WELL TUBING SIZED TO 88,9×6,45×9000-10700 mm FROM CORROSION-RESISTANT ALLOY OF ??30???-? GRADE |
| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to production of pipes for extraction of gas and gas condensate in sulphur-bearing media. ESR process is used to smelt hollow 470×110×2700 or 430×105x×2700 mm ingots to be bored and turned to hollow 460×100×2700 and 420×95×2700 mm ingots-billets, respectively. Said ingots-billets are heated to ductility temperature and rolled at Pilger mill on taper mandrels to rerolled hot-rolled pipes. The latter are turned, bored and rolled at mill CPR to commercial oil-well tubing sized to 88.9×6.45×9000-10700 mm. Use of hollow ESR ingots allows reducing the metal input.EFFECT: higher quality of pipes.4 cl, 1 tbl |
| 申请公布号 |
RU2527578(C2) |
申请公布日期 |
2014.09.10 |
| 申请号 |
RU20120155950 |
申请日期 |
2012.12.21 |
| 申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "CHELJABINSKIJ TRUBOPROKATNYJ ZAVOD" |
发明人 |
SAF'JANOV ANATOLIJ VASIL'EVICH;FEDOROV ALEKSANDR ANATOL'EVICH;OSADCHIJ VLADIMIR JAKOVLEVICH;PASHNIN VLADIMIR PETROVICH;SHMAKOV EVGENIJ JUR'EVICH;BARICHKO VLADIMIR SERGEEVICH;NIKITIN KIRILL NIKOLAEVICH;KLIMOV NIKOLAJ PETROVICH;BUBNOV KONSTANTIN EHDUARDOVICH;SAF'JANOV ALEKSANDR ANATOL'EVICH;MATJUSHIN ALEKSANDR JUR'EVICH;EREMIN VIKTOR NIKOLAEVICH |
| 分类号 |
B21B21/00 |
主分类号 |
B21B21/00 |
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