Mirija ya Mafuta ya J55 K55 N80 na Bomba la Chuma la Casing
Casing ya mafuta ni bomba la chuma linalotumiwa kusaidia kuta za visima vya mafuta na gesi ili kuhakikisha uendeshaji wa kawaida wa kisima kizima cha mafuta baada ya mchakato wa kuchimba visima na kukamilika.Kila kisima hutumia tabaka kadhaa za casing kulingana na kina tofauti cha kuchimba visima na hali ya kijiolojia.Saruji ya saruji hutumiwa baada ya casing kupunguzwa ndani ya kisima.Tofauti na mabomba ya mafuta na mabomba ya kuchimba, haiwezi kutumika tena na ni nyenzo za wakati mmoja.Kwa hiyo, matumizi ya casing akaunti kwa zaidi ya 70% ya mabomba yote ya mafuta.
Lebo | D Kipenyo cha nje mm | Unene wa ukuta t mm | C Aina ya mwisho-mwisho | |||||||||
1 | 2 | |||||||||||
NU T&C | EU T&C | IJ | ||||||||||
H40 | J55 | L80 | N80 1Q | C90 | T95 | P110 | ||||||
1 | 2 | 3 | 4 | 5 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
1.9 | 2.75 | 2.9 | 2.76 | 48.26 | 3.68 | PNUI | PNUI | PNUI | PNUI | PNUI | PNUI | - |
1.9 | 3.65 | 3.73 | - | 48.26 | 5.08 | PU | PU | PU | PU | PU | PU | PU |
1.9 | 4.42 | - | - | 48.26 | 6.35 | - | - | P | - | P | P | - |
2 3/8 | 4 | - | - | 60.32 | 4.24 | PU | PN | PN | PN | PN | PN | - |
2 3/8 | 4.6 | 4.7 | - | 60.32 | 4.83 | PNU | PNU | PNU | PNU | PNU | PNU | PNU |
2 3/8 | 5.8 | 5.95 | - | 60.32 | 6.45 | - | - | PNU | PNU | PNU | PNU | PNU |
2 3/8 | 6.6 | - | - | 60.32 | 7.49 | - | - | P | - | P | P | - |
2 3/8 | 7.35 | 7.45 | - | 60.32 | 8.53 | - | - | PU | - | PU | PU | - |
2 7/8 | 6.4 | 6.5 | - | 73.02 | 5.51 | PNU | PNU | PNU | PNU | PNU | PNU | PNU |
2 7/8 | 7.8 | 7.9 | - | 73.02 | 7.01 | - | - | PNU | PNU | PNU | PNU | PNU |
2 7/8 | 8.6 | 8.7 | - | 73.02 | 7.82 | - | - | PNU | PNU | PNU | PNU | PNU |
2 7/8 | 9.35 | 9.45 | - | 73.02 | 8.64 | - | - | PU | - | PU | PU | - |
2 7/8 | 10.5 | - | - | 73.02 | 9.96 | - | - | P | - | P | P | - |
3 1/2 | 7.7 | - | - | 88.9 | 5.49 | PN | PN | PN | PN | PN | PN | - |
3 1/2 | 9.2 | 9.3 | - | 88.9 | 6.45 | PNU | PNU | PNU | PNU | PNU | PNU | PNU |
3 1/2 | 10.2 | - | - | 88.9 | 7.34 | PN | PN | PN | PN | PN | PN | - |
3 1/2 | 12.7 | 12.95 | - | 88.9 | 9.52 | - | - | PNU | PNU | PNU | PNU | PNU |
3 1/2 | 14.3 | - | - | 88.9 | 10.92 | - | - | P | - | P | P | - |
3 1/2 | 15.5 | - | - | 88.9 | 12.09 | - | - | P | - | P | P | - |
4 | 9.5 | - | - | 101.6 | 5.74 | PN | PN | PN | PN | PN | PN | - |
4 | 10.7 | 11 | - | 101.6 | 6.65 | PU | PU | PU | PU | PU | PU | - |
4 | 13.2 | - | - | 101.6 | 8.38 | - | - | P | - | P | P | - |
4 | 16.1 | - | - | 101.6 | 10.54 | - | - | P | - | P | P | - |
4 1/2 | 12.6 | 12.75 | - | 114.3 | 6.88 | PNU | PNU | PNU | PNU | PNU | PNU | - |
4 1/2 | 15.2 | - | - | 114.3 | 8.56 | - | - | P | - | P | P | - |
Kikundi | Daraja | Aina | Jumla ya urefu chini ya mzigo % | Nguvu ya mavuno Mpa | Nguvu ya mkazo min MPa | Ugumu max | ||
min | max | HRC | HBW | |||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
1 | J55 | - | 0.5 | 379 | 552 | 517 | - | - |
K55 | - | 0.5 | 379 | 552 | 655 | - | - | |
N80 | 1 | 0.5 | 552 | 758 | 689 | - | - | |
N80 | Q | 0.5 | 552 | 758 | 689 | - | - | |
2 | L80 | 1 | 0.5 | 552 | 655 | 655 | 23 | 241 |
L80 | 9Kr | 0.5 | 552 | 655 | 655 | 23 | 241 | |
L80 | 13Kr | 0.5 | 552 | 655 | 655 | 23 | 241 | |
C90 | 1?2 | 0.5 | 621 | 724 | 689 | 25.4 | 255 | |
C95 | - | 0.5 | 655 | 758 | 724 | - | - | |
T95 | 1?2 | 0.5 | 655 | 758 | 724 | 25.4 | 255 | |
3 | P110 | - | 0.6 | 758 | 965 | 862 | - | - |
4 | Q125 | Wote | 0.65 | 862 | 1034 | 931 | - | - |
Ukaguzi wa kuona kwa uso wa bomba
Ukaguzi wa vipimo
Mtihani wa mitambo juu ya nguvu ya mvutano, nguvu ya mavuno na urefu
Uchambuzi wa kemikali
Jaribio la NDT pamoja na chembe ya Magnetic, Jaribio la Ultrasonic, Jaribio la Hydrostatic
Mtihani wa athari ya Charpy
Vipimo vya gorofa
Mtihani wa ugumu
Mtihani wa Drift
Uzi huisha angalia kwa kupima uzi na ukaguzi wa kuunganisha
J55 na K55 ni nyenzo zinazofanana katika muundo wa kemikali na sifa za mitambo, hasa J55 ina mahitaji ya chini ya mkazo wa chini na urefu wa chini, vipimo vingine ni sawa na mbinu za matibabu ya joto, mtihani wa NDE, mtihani wa Charpy Impact, mtihani wa hydrostatic.
J55/K55 nguvu ya chini ya mavuno: 379-552 Mpa;
J55 nguvu ya chini ya mvutano: 517 Mpa, elongation ≥ 19%;
Nguvu ya chini ya mkazo ya K55: Mpa 655, urefu wa ≥ 15%.