J55 K55 N80 Oil Tubing lan Casing Steel Pipe
Casing lenga minangka pipa baja sing digunakake kanggo ndhukung tembok sumur minyak lan gas kanggo njamin operasi normal kabeh sumur minyak sawise proses pengeboran lan rampung.Saben sumur nggunakake sawetara lapisan casing miturut ambane pengeboran lan kondisi geologi sing beda.Cementing semen digunakake sawise casing diturunake menyang sumur.Ora kaya pipa minyak lan pipa pengeboran, ora bisa digunakake maneh lan minangka bahan sing bisa dikonsumsi.Mulane, konsumsi casing luwih saka 70% kabeh pipa sumur minyak.
Label | D Diameter njaba mm | Ketebalan tembok t mm | C Jenis pungkasan-rampung | |||||||||
1 | 2 | |||||||||||
T&C NU | 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 | - |
Kelompok | sasmita | Jinis | Total elongation ing beban% | Kekuwatan ngasilake Mpa | Kekuatan tarik min MPa | Kekerasan maks | ||
min | maks | 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 | 9 Kr | 0.5 | 552 | 655 | 655 | 23 | 241 | |
L80 | 13Cr | 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 | Kabeh | 0.65 | 862 | 1034 | 931 | - | - |
Inspeksi visual kanggo permukaan pipa
Priksa ukuran
Tes mekanik babagan kekuatan tarik, kekuatan ngasilake lan elongasi
Analisis kimia
Tes NDT kalebu partikel Magnetik, Uji Ultrasonik, Uji Hidrostatik
Tes impact Charpy
Tes flattening
Tes kekerasan
Tes drift
Utas ends mriksa karo thread gauge lan mriksa kopling
J55 lan K55 minangka bahan sing padha ing komposisi kimia lan sifat mekanik, utamane J55 nduweni syarat tensile minimal lan elongasi sing luwih murah, spesifikasi liyane padha karo metode perawatan panas, tes NDE, tes Charpy Impact, tes hidrostatik.
J55 / K55 kekuatan ngasilake minimal: 379-552 Mpa;
J55 kekuatan tarik minimal: 517 Mpa, elongation ≥ 19%;
K55 kekuatan tarik minimal: 655 Mpa, elongation ≥ 15%.