China Short Drill Collar Production
Sharaxaad:
Collar-gaaban ayaa laga sameeyay birta daawaynta ee xoogga badan ka dib daaweynta kulaylka. Waxqabadka farsamada iyo dunta isku xidhka ayaa buuxinaysa shuruudaha heerka API. Inta badan waxaa loo isticmaalaa qalab gaar ah oo ku xiran ama ka kooban tiro go'an oo qalab qodista ah.
Collars-yadayada Gaaban ee Qodista Gaaban waxay ku siinayaan adkaanta aadka loogu baahan yahay isku-xidhka xadhigga qodista waxayna ka caawinayaan ka fogaanshaha leexinta aan ula kac ahayn ee ceelka. Cabbirkeeda is haysta ayaa awood u siinaya in ay keento qulqulka sare waxayna kor u qaadaysaa heerka dhexgalka. Waxay la socotaa dibed jilicsan ama wareeg ah, taas oo faa'iido u leh yaraynta dhejinta kala duwan. Natiijadu waxay tahay, Collar Drill Short wuxuu hubinayaa in hawlaha qodista ay yihiin kuwo siman oo aan kala go' lahayn, taas oo kordhinaysa waxtarka guud ee habka qodista.


Tilmaamaha Farsamada:
OD mm (gud) | conn | Aqoonsiga (mm) | m |
105 (4-1/8) | NC31 | 50 | 1.5 / 2 / 2.5 / 3 / 3.5 |
121 (4-3/4) | NC35 | 50 | |
127(5) | NC38 | 57 | |
159 (6-1/4) | NC46 | 71.4 | |
165 (6-1/2) | NC46 | 71.4 | |
178 (7) | NC50 | 71.4 | |
203 (8) | 6 5/8 FEG | 71.4 | |
229 (9) | NC61 | 71.4 |

Tilmaamid | OD (mm) | Isha Biyaha (mm) | Dulqaad API | L (mm) |
ZTD105 | 105 | 50.8 | NC31 | Habaynta |
ZTD127 | 127 | 57.2 | NC38 | |
ZTD168 | 168 | 71.4 | NC50 | |
ZTD203 | 203 | 71.4 | 6 5/8 REG |