dab tshos thiab yeeb nkab nta
Laum dab tshos feem ntau yog siv los muab cov khoom siv laum nrog qhov xav tau qhov drilling siab, kom ntseeg tau tias rub lub zog xa mus rau cov yeeb nkab laum thiab centralize lub laum ntsis.Raws li API Spec7-1 specifications, cov khoom zoo yog 4145H uas yog tom qab kev kho cua sov, xov hardening kho thiab phosphate kom zoo dua los tiv thaiv.Nws kuj tuaj yeem tsim tau raws li cov neeg siv khoom xav tau.
Hnyav hnyav Drill dab tshos yog qhov tseem ceeb ntawm kev ua haujlwm ntawm Jcdrilldown qhov drilling cuab yeej.Laum dab tshos muab qhov hnyav ntawm me ntsis rau kev drilling los ntawm kev tsim.Rig drillers muaj peev xwm saib xyuas qhov hnyav siv rau me ntsis los ntawm kev saib xyuas los ntawm kev suav yooj yim, thiab ntsuas qhov ntsuas qhov hnyav, nyob rau hauv pem teb rig.Laum dab tshos feem ntau yog 31'ft ntev, tuab phab ntsa, thiab cov hlau hnyav.Lawv tuaj lub thawv los ntawm tus pin nrog zoo li kev sib txuas, txhawm rau ua phooj ywg ntau npaum li xav tau, kom ua tiav qhov hnyav xav tau.Laum dab tshos tuaj slick OD, los yog machined nrog helical grooves (kauv dab tshos).Jink khaws cov khoom siv dav dav ntawm carbon steel laum dab tshos hauv Tshuag.Lead Collar Lead collars lub hom phiaj yog muab qhov chaw luv luv ntawm qhov drilling me ntsis, thiab ze rau me ntsis stabilizer.Qhov no tsuas yog lwm txoj hauv kev Jcdrill muab koj lub peev xwm los tweak koj qhov kev xav tau kev ua haujlwm raws li qhov kev sib tw hauv qhov tshwm sim.Los ntawm kev ntxiv qhov ncua deb ntawm me ntsis, thiab ze me ntsis stab, koj txhav BHA wright ntawm me ntsis, txo me ntsis taug kev, yog li ntawd, txhawb lub qhov ncaj.Jcdrill khaws cov khoom zoo ntawm cov hlau lead dab tshos hauv Tshuag.
| m | |||||
| Tsim | O | D | ID | Leng | Chamfer Diameter |
| in | mm | +1.6-0.0 hli | + 152.4 hli | + 0.4 hli | |
| NC23-31 | 3 1/8 | 79.4 ib | 31.8 ib | 9.15 Nws | 76.2 ib |
| NC26-35 | 3 1/2 | 88.9 ua | 38.1 ib | 9.15 Nws | 82.9 ua |
| NC31-41 | 4 1/8 | 104.8 ib | 50.8 ib | 9.159.45 Nws | 100.4 |
| NC35-47 | 4 3/4 ib | 120.7 Nws | 50.8 ib | 9.159.45 Nws | 114.7 ib |
| NC38-50 | 5 | 127 | 57.2 ib | 9.159.45 Nws | 121 |
| NC44-60 | 6 | 152.4 ib | 57.2 ib | 9.159.45 Nws | 144.5 ib |
| NC44-60 | 6 | 152.4 ib | 71.4 ib | 9.159.45 Nws | 144.5 ib |
| NC44-62 | 6 1/4 | 158.8 ib | 57.2 ib | 9.159.45 Nws | 149.2 ib |
| NC44-62 | 6 1/4 | 158.5 ib | 71.4 ib | 9.159.45 Nws | 150 |
| NC46-65 | 6 1/2 | 165.1 ib | 57.2 ib | 9.159.45 Nws | 154.8 ib |
| NC46-65 | 6 1/2 | 165.1 ib | 71.4 ib | 9.159.45 Nws | 154.8 ib |
| NC46-67 | 6 3/4 | 171.5 ib | 57.2 ib | 9.159.45 Nws | 159.5 ib |
| NC50-70 | 7 | 177.8 ib | 57.2 ib | 9.159.45 Nws | 164.7 ib |
| NC50-70 | 7 | 177.8 ib | 71.4 ib | 9.159.45 Nws | 164.7 ib |
| NC50-72 | 7 1/4 ib | 184.2 ib | 71.4 ib | 9.159.45 Nws | 169.5 ib |
| NC56-77 | 7 3/4 ib | 196.9 ib | 71.4 ib | 9.159.45 Nws | 185.3 ib |
| NC56-80 | 8 | 203.2 ib | 71.4 ib | 9.159.45 Nws | 190.1 ib |
| 6 5/8 REG | 8 1/4 | 209.6 ib | 71.4 ib | 9.159.45 Nws | 195.7 ib |
| NC61-90 | 9 | 228.6 ib | 71.4 ib | 9.159.45 Nws | 212.7 ib |
| 7 5/8 REG | 9 1/2 | 241.3 ib | 76.2 ib | 9.159.45 Nws | 223.8 ib |
| NC70-97 | 9 3/4 ib | 247.7 ib | 76.2 ib | 9.159.45 Nws | 232.6 ib |
| NC70-100 | 10 | 254 | 76.2 ib | 9.159.45 Nws | 237.3 ib |
| 8 5/8 REG | 11 | 279.4 ib | 76.2 ib | 9.159.45 Nws | 266.7 ib |
