TusLaum Yeeb, raws li cov tseem ceeb tivthaiv ntawm kev ua haujlwm drilling, feem ntau yog precision - Tsim los ntawm Seamless Cov Hlab Nrog 9-11 hli. Nws feem ntau muaj ob ntu: tusYeeb Nkab Lub CevThiab tusCuab Yeej Siv.
Txoj kev txuas
Threaded kev sib txuas: ob xaus ntawm cov yeeb nkab lub cev featos zoo txiv neej xov uas phim cov poj niam xov ntawm ib qho kawg ntawm kev sib koom tes. Xws li cov tho kav yog ua tiav "xov log tho kav."
Txhuam - welded taub pob sib koom ua ke: cov yeeb nkab lub cev thiab sib koom tes yog txuas ntawm vuam vuam. Tshwj xeeb, xov threed tho tawm, nrog feem ntau tsim los yog import} threaded (piv txwv li, khawm {{welded).
Chim siab tsim qauv rau lub zog txhim kho
Txhawm rau txhawb qhov kev sib txuas, cov yeeb nkab xaus feem ntau chim siab los ntawm:
Sab hauv chim
Sab nraud chim
Ua ke sab hauv - sab nraud chim
API Txheem Ntev Kev Ua Haujlwm
American Petroleum Institute (API) Categorizes tho kav kav rau hauv peb chav kawm los ntawm qhov ntev:
| Hom | Ntev ntev (m) | Ntev ntev (FT) |
|---|---|---|
| I | 5.486–6.706 | 18–22 |
| ' | 8.230–9.144 | 27–30 |
| I | 11.582–13.716 | 38–45 |
Cov diam uas ua diam nyob rau hauv kev xyaum suav nrog88.9 hli (3.5 hauv), 114.3 mm (4.5 hauv), Thiab127.0 hli (5 hauv).
Cuab Yeej Siv Tiv Thaiv
Lub sij hawm tho, cov cuab yeej sib koom tes (nrog cov tub rog loj dua li cov yeeb nkab lub cev) feem ntau hu rau qhov chaw ua haujlwm lossis casing, coj mus rau kev ua txhaum. Txhawm rau tiv thaiv kev huam yuaj zoo li cov yeeb nkab tawg lossis cov xov tsis txaus,hnav - ion illantant bandsYog tshwj xeeb ntsia rau ntawm cov poj niam pob qij txha.
