API 5CT N80 oilfield casing feem ntau yog siv rau drilling thiab thauj cov roj thiab roj hauv cov roj thiab cov qhov dej. Oilfield casing tsuas yog txhawb nqa lub qhov dej thaum lub sijhawm drilling thiab tom qab ua tiav, ua kom cov haujlwm zoo ntawm lub qhov dej thiab nws txoj haujlwm txuas ntxiv tom qab ua tiav. Oilfield casing yog lub lifeline rau kev tswj cov roj zoo. Vim muaj qhov sib txawv geological thiab complex downhole kev nyuaj siab xeev, tensile, compressive, dabtsi yog khoov, thiab torsional stresses ua rau lub casing, tso siab xav tau ntawm nws zoo. Kev puas tsuaj rau lub casing rau ib qho laj thawj tuaj yeem ua rau txo qis kev tsim khoom lossis txawm tias tag nrho lub qhov dej tso tseg.
1. Specifications: Outer Diameter: 114.3mm - 508mm (4 1/2" - 20") Phab ntsa Thickness: 5.21mm - 16.13mm (9.5PPF - 133PPF)
2. Khoom siv: H40, J55, K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr, P110, Q125, thiab lwm yam.
3. Cov Qauv: API 5CT, GB, ISO11960, GOST
4. Hom kev sib txuas: STC, LTC, BTC, XC, thiab hwm kev sib txuas
5. Ntev: R1, R2, R3
6. Kev tshuaj xyuas: NDT thiab lwm yam kev cai ntawm API 5CT thiab 5B
7. Hom: Seamless steel yeeb nkab, ncaj seam steel yeeb nkab
Mechanical zog
|
Qib |
Tensile zog (MPa) |
Yield zog (MPa) |
|
N80 |
Ntau dua lossis sib npaug rau 689 |
552-758 |
Specification
|
Qib Steel |
OD (mm) |
WT (mm) |
|||||||
|
- |
- |
Xov ntev | Xov luv | ||||||
|
N80 |
139.7 |
7.72 |
9.17 |
10.54 |
- |
- |
- |
- |
- |
|
- |
177.8 |
4.05 |
9.19 |
10.36 |
11.51 |
12.65 |
13.72 |
- |
- |
|
- |
219.1 |
10.16 |
11.43 |
12.72 |
14.15 |
- |
- |
- |
- |
|
- |
244.5 |
10.03 |
11.05 |
11.99 |
13.44 |
- |
- |
11.43 |
12.57 |
|
- |
273 |
- |
- |
- |
- |
- |
- |
12.19 |
13.06 |
|
- |
339.7 |
- |
- |
- |
- |
- |
- |
- |
- |
