Mirija na Kuunganisha Casing
Kuunganisha kwa casing ni bomba fupi linalotumiwa katika kuunganisha mabomba mawili ya casing ambayo yana nyuzi.Kiunganishi cha bomba kina nyuzi za ndani zilizotengenezwa ili kufanana na uzi wa nje wa viungo virefu vya casing.Viungo viwili vya mabomba ya casing hupigwa kwenye ncha tofauti za kuunganisha casing.Kupitia nguvu zao zinaweza kufanywa kwa kiwango sawa cha chuma kama casing.Viunganishi vyote vya casing vinatengenezwa kwa mujibu wa vipimo vya API 5CT vya toleo la hivi punde.
Sifa za Ufungaji wa Casing:
♦ Nyenzo za viunganisho vya casing ni H40, J55, K55, M65, N80-1, N80Q, L80, C95, T95 na chuma cha daraja la P110 na ubora wa juu na utendaji mzuri;
♦ Kipenyo cha nje kinaanzia 127mm hadi 365.12 mm;
♦ Mifumo ya nyuzi za viunganishi vya casing ni pamoja na uzi fupi wa duara, uzi mrefu wa pande zote na uzi wa buttress.
Kuunganisha neli ni aina ya zana ya kuchimba visima inayopatikana kwenye uwanja wa mafuta.Uunganisho wa mabomba hutumiwa hasa katika kuunganisha mabomba ya mafuta.Aina hii ya kuunganisha bomba imeshughulikia tatizo ambalo miunganisho iliyopo inaelekea kupasuka kwa sababu ya mkusanyiko wa dhiki.Bomba la mafuta huisha na ukuta wa ndani wa kuunganisha neli huunganishwa na nyuzi.Na mabomba ya mafuta na mwisho wa kuunganisha neli yana aina sawa ya nyuzi.Si rahisi kupasuka kwa aina hii ya uunganisho na athari ya uunganisho ni nzuri.Kiunganishi cha neli kinaweza kuzuia ajali ya kamba ya kisima cha mafuta kuacha kwa ufanisi.
Sifa za Kuunganisha Mirija:
♦ Nyenzo za viunganishi vya neli ni H40, J55, N80-1, N80Q, L80, C90, T95 na chuma cha daraja la P110 na ubora wa juu na utendaji mzuri;
♦ Inatumiwa hasa kuunganisha mabomba mawili ya mafuta;
♦ Mifumo ya nyuzi za kuunganisha neli ni pamoja na uzi usiovurugika na uzi uliovurugika;
♦ Kipenyo cha nje cha kuunganisha neli huanzia 55.88 mm hadi 141.3 mm;
API Tubing Coupling
Vipimo | |
Ukubwa (Bomba OD) (ndani) | 1.900, 2-3/8, 2-7/8, 3-1/2, 4, 4-1/2 |
Kasirika | Isiyo KukasirikaKwa Nje |
Daraja | J-55, C-75, L-80, N-80, C-95, P-110 |
Chaguo | Electro-zinki platedPhosphorised |
API Casing Coupling
Vipimo | |
Ukubwa (Bomba OD) (ndani) | 4-1/2, 5, 5-1/2, 6-5/8, 7, 7-5/8, 8-5/8, 9-5/8, 10-3/4, 11-3/ 4, 13-3/8, 16, 18-5/8, 20 |
Kuunganisha | Mpogo Mfupi wa Uzi wa Mviringo (STC)Mfuko wa Uzi wa Mviringo Mrefu (LC)Mfuko wa Uzi wa Mviringo (BC) |
Daraja | H-40, J-55, K-55, C-75, L-80, N-80, C-95, AS-95, P-110, L80-13CR |
API Tubing Coupling | ||||
Maelezo na ukubwa | Aina ya Thread | OD*L | Uzito | |
(mm) | (kilo) | |||
Kuunganisha Mirija | 1.05 | NUE | 33.35*80.96 | 0.23 |
1.05 | EUE | 42.16*82.55 | 0.38 | |
1.315 | NUE | 42.16*82.55 | 0.38 | |
1.315 | EUE | 48.26*88.90 | 0.57 | |
1.66 | NUE | 52.17*88.90 | 0.59 | |
1.66 | EUE | 58.88*95.25 | 0.68 | |
1.9 | NUE | 55.88*95.25 | 0.56 | |
1.9 | EUE | 63.50*98.42 | 0.84 | |
2-3/8″ | NUE | 73.02*107.95 | 1.28 | |
2-3/8″ | EUE | 77.80*132.82 | 1.55 | |
2-7/8″ | NUE | 88.90*130.18 | 2.34 | |
2-7/8″ | EUE | 93.17*133.35 | 2.4 | |
3-1/2″ | NUE | 107.95*142.88 | 3.71 | |
3-1/2″ | EUE | 114.30*146.05 | 4.1 | |
4″ | NUE | 120.65*146.05 | 4.35 | |
4″ | EUE | 127.00*152.40 | 4.82 | |
4-1/2″ | NUE | 132.08*155.58 | 4.89 | |
4-1/2″ | EUE | 141.30*158.75 | 6.05 |
API Casing Coupling | ||||
Maelezo na ukubwa | Aina ya Thread | OD*L | Uzito | |
(mm) | (kilo) | |||
Uunganishaji wa Casing | 4-1/2″ | STC | 127.00*158.75 | 5.23 |
4-1/2″ | LTC | 127.00*177.80 | 4.15 | |
4-1/2″ | BTC | 127.00*225.42 | 4.55 | |
5″ | STC | 141.30*165.10 | 4.66 | |
5″ | LTC | 141.30*196.85 | 5.75 | |
5″ | BTC | 141.30*231.78 | 5.85 | |
5-1/2″ | STC | 153.67*171.45 | 5.23 | |
5-1/2″ | LTC | 153.67*203.20 | 6.42 | |
5-1/2″ | BTC | 153.67*234.95 | 6.36 | |
6-5/8″ | STC | 187.71*184.15 | 9.12 | |
6-5/8″ | LTC | 187.71*222.25 | 11.34 | |
6-5/8″ | BTC | 187.71*244.48 | 11.01 | |
7″ | STC | 194.46*184.15 | 8.39 | |
7″ | LTC | 194.46*228.60 | 10.83 | |
7″ | BTC | 194.46*254.00 | 10.54 | |
7-5/8″ | STC | 215.90*190.50 | 12.3 | |
7-5/8″ | LTC | 215.90*234.95 | 15.63 | |
7-5/8″ | BTC | 215.90*263.52 | 15.82 | |
8-5/8″ | STC | 244.48*196.85 | 16.23 | |
8-5/8″ | LTC | 244.48*254.00 | 21.67 | |
8-5/8″ | BTC | 244.48*269.88 | 20.86 | |
9-5/8″ | STC | 269.88*196.85 | 18.03 | |
9-5/8″ | LTC | 269.88*266.70 | 25.45 | |
9-5/8″ | BTC | 269.88*269.88 | 23.16 | |
10-3/4″ | STC | 298.45*203.20 | 20.78 | |
10-3/4″ | BTC | 298.45*269.88 | 25.74 | |
11-3/4′ | STC | 323.85*203.20 | 22.64 | |
11-3/4′ | BTC | 323.85*269.88 | 28.03 | |
13-3/8″ | STC | 365.12*203.20 | 25.66 | |
13-3/8″ | BTC | 365.12*269.88 | 31.77 | |
16″ | STC | 431.80*228.6 | 34.91 | |
16″ | BTC | 431.80*269.88 | 40.28 | |
18-5/8″ | STC | 508.00*228.60 | 51.01 | |
18-5/8″ | BTC | 508.00*269.88 | 62.68 | |
20″ | STC | 533.40*228.6 | 43.42 | |
20″ | LTC | 533.4*292.10 | 57.04 | |
20″ | BTC | 533.40*269.88 | 50.1 |
Viwango vinavyotumika:
Nyenzo za API 5CT kwa mwili;
API 5B kwa nyuzi za API;
Mazungumzo ya juu kwa kila vipimo vya leseni
Vigezo kuu vya kiufundi
Mahusiano | Ukubwa ndani | Max.OD katika(mm) | Urefu wa chini katika(mm) | Daraja | ||
NU | EU | NU | EU | |||
23/8 | 2.875(73.03) | 3.063(77.80) | 41/4(107.95) | 47/8(123.83) | J55 N80 | |
| 27/8 | 3.500 (88.90) | 3.668(93.20) | 51/8(130.18) | 51/4(133.35) | |
| 31/2 | 4.250(108.00) | 4.500(114.30) | 55/8(142.88) | 53/4(146.05) | |
Crossovers | J55,N80,L80 Aina zote za crossovers, viunganishi na viunganishi vidogo vya darasa J55, N80 na L80 |
UTAMBULISHO WA DARAJA LA BOMBA KWA RANGI YA RANGI
Kulingana na viwango vya API 5CT, kabati la Mafuta na viambatanisho vya Mirija vinapaswa kupakwa rangi moja baada ya nyingine ili kutofautisha viwango tofauti vya chuma.Lebo ya rangi ya casing ya mafuta na Tubing inapaswa kunyunyiziwa mwisho wowote≥600mm, na rangi inapaswa kupakwa kwenye uso wote wa nje, na kisha pete ya rangi inapaswa kunyunyiziwa.
Kuunganisha msimbo wa rangi | |||||
Daraja | Aina ya Daraja | Rangi za Kuunganisha | Nambari na rangi ya bendi za bidhaa | Picha | |
Kuunganisha Mzima | Bendi | ||||
H40 | Hakuna | Sawa na bomba | Hakuna/mkanda mweusi kwa chaguo la mtengenezaji | ||
Mirija ya J55 | Kijani Mkali | Hakuna | Kijani Kinacho Kung'aa | ||
Mfuko wa J55 | Kijani Mkali | Mzungu Mmoja | Kijani Kinacho Kung'aa | ||
K55 | Kijani Mkali | Hakuna | Mbili Mkali wa Kijani | ||
M65 | M65Pipe hutumia L80Type 1Couplings | Moja Bright GreenOne Blue | |||
N80 | 1 | Nyekundu | Hakuna | Nyekundu moja | |
N80 | Q | Nyekundu | Moja ya Kijani | RedOne Moja ya Kijani Inayong'aa | |
R95 | Brown | Hakuna | Brown mmoja | ||
L80 | 1 | Nyekundu | Brown mmoja | RedOne Brown moja | |
L80 | 9Kr | Hakuna | Mbili Njano | Nyekundu Moja, Nyekundu Moja, Njano Mbili | |
L80 | 13Kr | Hakuna | Njano Moja | Nyekundu Moja, Nyekundu Moja, Njano Moja | |
C90 | 1 | Zambarau | Hakuna | Zambarau Moja | |
T95 | 1 | Fedha | Hakuna | Fedha Moja | |
C110 | Nyeupe | Mbili Brown | Mmoja Mweupe, Mbili Brown | ||
P110 | Nyeupe | Hakuna | Mzungu Mmoja | ||
Q125 | Chungwa | Hakuna | Chungwa moja |