Cement Casing Rubber Plug rau oilfield
Nqe lus piav qhia:
Cov roj hmab ntsaws yog siv los cais cov cement slurry los ntawm lwm cov kua dej, txo kev sib kis thiab tswj xyuas qhov kev ua tau zoo ntawm slurry. Ob hom cementing plugs feem ntau yog siv hauv kev ua haujlwm cementing. Cov ntsaws hauv qab yog tso tawm ua ntej ntawm cov cement slurry kom txo tau cov kab mob sib kis los ntawm cov kua hauv lub casing ua ntej cementing. Lub diaphragm nyob rau hauv lub plug lub cev ruptures tso cai rau cov cement slurry hla dhau tom qab lub plug mus txog lub tsaws dab tshos.
Lub ntsaws sab saum toj muaj lub cev muaj zog uas muab qhov qhia tau zoo ntawm kev sib cuag nrog lub tsho tsaws thiab hauv qab ntsaws los ntawm kev nce hauv lub twj tso kua mis.
Cementing plugs yog cov khoom tseem ceeb hauv kev ua tiav zonal kev sib cais, ib qho tseem ceeb ntawm qhov zoo ntawm cov cementing. Lawv ua qhov thaiv ntawm cov cement slurry thiab lwm cov kua dej hauv qhov dej, yog li tiv thaiv kev sib xyaw thiab sib kis. Cov ntsaws hauv qab, nrog nws cov diaphragm feature, xyuas kom cov dej sib cais kom txog thaum cov cement slurry ncav cuag nws qhov chaw npaj. Nyob rau tib lub sijhawm, lub ntsaws sab saum toj muab qhov kev ntseeg tau ntawm kev ua tiav cov ntsaws ruaj ruaj thiab cov cement tso los ntawm kev pom qhov nce siab hauv lub twj tso kua mis. Thaum kawg, kev siv cov plugs no ua rau muaj kev ua haujlwm zoo thiab txhim khu kev qha cementing, tseem ceeb heev rau kev ruaj ntseg zoo thiab ua haujlwm ntev.
Nqe lus piav qhia:
| Loj, nti | OD, mm | Ntev, mm | Hauv qab Cementing Plug Rubbermembrane tawg siab, MPa |
| 114.3mm ib | 114 | 210 | 1 ~ 2 |
| 12 7mm | 127 | 210 | 1 ~ 2 |
| 139.7mm ib | 140 | 220 | 1 ~ 2 |
| 168mm ib | 168 | 230 | 1 ~ 2 |
| 177.8mm ib | 178 | 230 | 1 ~ 2 |
| 244.5mm ib | 240 | 260 | 1 ~ 2 |
| 273mm ua | 270 | 300 | 1 ~ 2 |
| 3 39,4mm | 340 | 350 | 1 ~ 2 |
| 4 57mm | 473 ib | 400 | 2 ~ 3 |
| 5 08mm | 508 | 400 | 2 ~ 3 |
