Casing lenga minangka pipa diameter gedhe sing dadi penahan struktur, bisa nglindhungi subsurface lan sumur saka
ambruk lan ngidini cairan pengeboran sirkulasi lan ekstraksi.
Spesifikasi
Standar: API 5CT.
casing baja rapi lan pipa tubing: 114.3-406.4mm
casing baja gandheng lan pipa tubing: 88.9-660.4mm
Ukuran njaba: 6.0mm-219.0mm
Kekandelan tembok: 1.0mm-30mm
Dawane: maksimal 12m
Bahan: J55, K55, N80-1, N80-Q, L80-1, P110, lsp.
Sambungan thread: STC, LTC, BTC, XC lan sambungan Premium
Standar |
API 5CT/ ISO11960 |
|
sasmita |
Kelompok.1 |
H40/PSL.1, J55/PSL.1, J55/PSL.2, J55/PSL.3, K55/PSL.1, K55/PSL.2, K55 /PSL.3, |
Kelompok.2 |
M65/PSL.1, M65/PSL.3, L80/PSL.2, L80(1)/PSL.1, L80(1)/PSL.3, L80(9Cr) /PSL.1, |
|
Kelompok.3 |
P110/PSL.1, P110/PSL.2, P110/PSL.3, |
|
Kelompok.4 |
Q125/PSL.1, Q125/PSL.2, Q125/PSL.3, |
|
Jumlah Pesenan Minimal |
1 Ton |
|
Njaba Dhiameter Ranges |
Tubing |
1,315 inci nganti 4 1/2 inci utawa 48,26mm nganti 114,3mm |
Casing |
4 1/2 inci nganti 13 3/8 inci utawa 114.3mm nganti 339.72mm |
|
Kekandelan tembok |
Miturut standar API 5CT |
|
dawa |
Tubing |
R1 (6,10m nganti 7,32m), R2 (8,53m nganti 9,75m), R3 (11,58m nganti 12,80m) |
Casing |
R1 (4,88m nganti 7,62m), R2 (7,62m nganti 10,36m), R3 (10,36m nganti 14,63m) |
|
Jinis |
mulus |
|
Jinis Akhir-Rampung |
Tubing |
P, I, N, U |
Casing |
P, S, B, L |
ukuran
Ukuran Pipa Casing, Oilfield Casing Ukuran & Casing Drift Ukuran | |
Diameter Luar (Ukuran Pipa Casing) | 4 1/2"-20", (114.3-508mm) |
Ukuran Casing Standar | 4 1/2"-20", (114.3-508mm) |
Tipe Utas | Casing benang buttress, Casing benang bunder dawa, Casing benang bunder cendhak |
Fungsi | Bisa nglindhungi pipa tubing. |
Komposisi kimia
sasmita | C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr≤ | Ni≤ | Cu≤ | Mo≤ | V≤ | Als≤ |
API 5CT J55 | 0.34-0.39 |
0.20-0.35 |
1.25-1.50 |
0.020 |
0.015 |
0.15 |
0.20 |
0.20 |
/ |
/ |
0.020 |
API 5CT K55 | 0.34-0.39 |
0.20-0.35 |
1.25-1.50 |
0.020 |
0.015 |
0.15 |
0.20 |
0.20 |
/ |
/ |
0.020 |
API 5CT N80 | 0.34-0.38 |
0.20-0.35 |
1.45-1.70 |
0.020 |
0.015 |
0.15 |
/ |
/ |
/ |
0.11-0.16 |
0.020 |
API 5CT L80 | 0.15-0.22 |
1.00 |
0.25-1.00 |
0.020 |
0.010 |
12.0-14.0 |
0.20 |
0.20 |
/ |
/ |
0.020 |
API 5CT J P110 | 0.26-035 |
0.17-0.37 |
0.40-0.70 |
0.020 |
0.010 |
0.80-1.10 |
0.20 |
0.20 |
0.15-0.25 |
0.08 |
0.020 |
Sifat Mekanik
Kelas Baja |
Kekuwatan Ngasilake (Mpa) |
Kekuwatan Tarik (Mpa) |
API 5CT J55 |
379-552 |
≥517 |
API 5CT K55 |
≥655 |
≥517 |
API 5CT N80 |
552-758 |
≥689 |
API 5CT L80 |
552-655 |
≥655 |
API 5CT P110 |
758-965 |
≥862 |