Cov khoom
API 7-1 4145 & Tsis yog-mag Drill Collar
Kev piav qhia txog khoom
Lub dab tshos laum ib txwm yog lub voj voog hla, qhov chaw nruab nrab muaj qhov dej, phab ntsa tuab dua, lub nozzle me dua, qhov hnyav ntawm ib chav ntev dua li qhov loj ntawm cov yeeb nkab laum yuav luag 4-5 zaug. Feem ntau ntawm cov dab tshos laum yog xov ua tiav ncaj qha rau ntawm lub cev yeeb nkab, tab sis qee qhov ntawm lawv kuj siv qhov sib koom ua ke hloov.
Lub dab tshos kauv yog ib hom cuab yeej siv rau kev khawb roj av. Hom dab tshos no muaj peev xwm tiv thaiv kom tsis txhob muaj kev sib txawv ntawm lub zog thaum lub sijhawm khawb. Cov kab sib txawv ntawm cov kab yuav ua rau cov av nkos ntws tau yooj yim nyob ib puag ncig lub dab tshos kom siv lub zog sib npaug los tiv thaiv kev tsim cov khoom thaiv kom tiv thaiv tau qhov sib txawv ntawm lub zog sib txawv. Qhov chaw sib cuag ntawm phab ntsa ntawm lub qhov dej tuaj yeem txiav kom txo tau qhov ua tau ntawm kev tsim cov khoom thaiv siab sib txawv. Cov kab sib txawv ntawm cov kab yuav ua rau cov av nkos ntws tau yooj yim nyob ib puag ncig lub dab tshos kom siv lub zog sib npaug los tiv thaiv kev tsim cov khoom thaiv kom tiv thaiv tau qhov sib txawv ntawm lub zog sib txawv. Qhov chaw sib cuag ntawm phab ntsa ntawm lub qhov dej tuaj yeem txiav kom txo tau qhov ua tau ntawm kev tsim cov khoom thaiv siab sib txawv. Qhov hnyav ntawm lub dab tshos kauv yog 4-6% tsawg dua li ntawm lub dab tshos puag ncig.
Lub Caj Dab Tsis Muaj Hlau Nplaum: Lub caj dab tsis muaj hlau nplaum yog ua los ntawm cov ntaub ntawv tsis muaj hlau nplaum uas muaj zog tsawg los ntawm kev sib xyaw ua ke cov tshuaj lom neeg tshwj xeeb thiab cov txheej txheem forging rauj nrog cov permeability qis magnetic muaj peev xwm ua haujlwm zoo heev. peb tuaj yeem muab cov khoom ntev txij li 10 txog 42 feet thiab sab nraud txoj kab uas hla txij li 31/8 "txog 11'.
Cov Khoom Siv Qhia Txog Khoom
| Loj | OD (hli) | ID (hli) | Cov Cai | Xov | Ntev (hli) | Qhov hnyav (kg) |
| 3-1/8 | 79.4 | 31.8(1-1/4) | NC23-31 | NC23 | 9140 | 298 |
| 3-1/2 | 88.9 | 38.1(1-1/2) | NC26-35 | NC26 | 9140 | 364 |
| 4-1/8 | 104.8 | 50.8(2) | NC31-41 | NC31 | 9140/9450 | 474/490 |
| 4-3/4 | 120.6 | 50.8(2) | NC35-47 | NC35 | 9140/9450 | 674/697 |
| 5 | 127 | 57.2(2-1/4) | NC38-50 | NC38 | 9140/9450 | 725/749 |
| 6 | 152.4 | 57.2(2-1/4) | NC44-60 | NC44 | 9140/9450 | 1125/1163 |
| 71.4(2-13/16) | NC44-60 | 9140/9450 | 1022/1056 | |||
| 6-1/4 | 158.8 | 57.2(2-1/4) | NC44-62 | NC44 | 9140/9450 | 1237/1279 |
| 71.4(2-13/16) | NC46-62 | 9140/9450 | 1134/1172 | |||
| 6-1/2 | 165.1 | 57.2(2-1/4) | NC46-65 | NC46 | 9140/9450 | 1352/1398 |
| 71.4(2-13/16) | NC46-65 | NC50 | 9140/9450 | 1249/1291 | ||
| 6-3/4 | 171.4 | 57.2(2-1/4) | NC46-67 | NC46 | 9140/9450 | 1471/1521 |
| 7 | 177.8 | 57.2(2-1/4) | NC50-70 | NC50 | 9140/9450 | 1597/1651 |
| 71.4(2-13/16) | NC50-70 | 9140/9450 | 1494/1545 | |||
| 7-1/4 | 184.2 | 71.4(2-13/16) | NC50-72 | NC50 | 9140/9450 | 1625/1680 |
| 7-3/4 | 196.8 | 71.4(2-13/16) | NC56-77 | NC56 | 9140/9450 | 1895/1960 |
| 8 | 203.2 | 71.4(2-13/16) | NC56-80 | NC56/6-5/8REG | 9140/9450 | 2040/2109 |
| 8-1/4 | 209.6 | 71.4(2-13/16) | 6-5/8REG | 6-5/8REG | 9140/9450 | 2188/2263 |
| 9 | 228.6 | 71.4(2-13/16) | NC61-90 | NC61 | 9140/9450 | 2658/2748 |
| 9-1/2 | 241.3 | 76.2(2-13/16) | 7-5/8REG | 7-5/8REG | 9140/9450 | 2954/3054 |
| 9-3/4 | 247.6 | 76.2(3) | NC70-97 | NC70 | 9140/9450 | 3127/3234 |
| 10 | 254 | 76.2(3) | NC70-100 | NC70 | 9140/9450 | 3308/3421 |
| 11 | 279.4 | 76.2(3) | 8-5/8REG | 8-5/8REG | 9140/9450 | 4072/4210 |
Cov Nta thiab Cov Txiaj Ntsig
Qhov nyuaj ntawm 285 txog 341 BHN thiab tus nqi Charpy cuam tshuam ntawm 40 ft-lbs tau lees paub rau kev faib tawm sib npaug zos 16 cov ntsiab lus hauv txhua qhov seem ntawm chav tsev kub;
Cov kev sib txuas yog phosphate coated tom qab machining los tiv thaiv cov xov los ntawm cov ntsiab lus corrosive thiab kom tiv thaiv galling thaum pib ua-up;
Cov hauv paus xov yog txias dov rau ntawm API kev sib txuas;
Cov xov hlau nias tiv thaiv tau muab rau txhua lub dab tshos laum uas muaj cov kev sib txuas txheem.
Cov kev xaiv
Qhov zawj txo kev ntxhov siab. Cov yam ntxwv txo kev ntxhov siab ntawm API tus pin thiab lub thawv sib txuas kom txo cov kev ntxhov siab siab yog li txhim kho lub zog khoov nyob ib puag ncig thaj chaw sib txuas.
Kev dov txias ntawm cov hauv paus xov tau ua pov thawj cov txiaj ntsig zoo los txhim kho kev tiv thaiv kev qaug zog ntawm cov kev sib txuas los ntawm kev txo qis qhov pib tawg.
Kev khi tawv. Kev khi tawv ntawm qhov chaw hauv qab thiab saum qhov chaw qis lossis ntawm lub xub pwg nyom ua rau lub caj dab laum ntev dua. Nws kuj tseem siv tau rau hauv cov kev teeb tsa uas cov neeg siv khoom tau teev tseg. Kev khi tawv ntawm qhov chaw hauv qab thiab saum qhov chaw qis lossis ntawm lub xub pwg nyom ua rau lub caj dab laum ntev dua. Nws kuj tseem siv tau rau hauv cov kev teeb tsa uas cov neeg siv khoom tau teev tseg.
Cov qhov rooj nkag thiab cov qhov rooj nqa khoom. Lub vojvoog sab saud ntawm qhov rooj nqa khoom yog dov txias kom txhim kho lub neej khoom. Cov qhov rooj nkag thiab cov qhov rooj nqa khoom raug tshuab raws li API Spec 7-1.
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