### 1. Yuav ua li cas tob tob yuav tsum muaj roj yeeb yog?
Kev faus qhov tob rau ** Pipelines ** Feem ntau ua raws cov qauv tswj (E .., phmsa hauv Asmeskas):
- ** ** Tsawg yam tas mus li tsawg kawg **: 30 ntiv tes (0 . 76 m) nyob rau hauv cov chaw nyob deb nroog.
- ** PLEERER SALER **: Txog li 48 ntiv (1 {{}}} 2 m) nyob rau hauv txoj kev, kev tsheb ciav hlau, lossis cov chaw pej xeem.
- ** ** "Kab xaim hauv av, av, av av, thiab ib puag ncig tiv thaiv .
### 2.} Kuv yuav xam cov yeeb nkab tuab li cas?
Siv cov ** ASME B31.4 / B31.8 ** Cov Qauv Cim rau Kev Hloov Pipelines:
```
t = (P × D) / (2 × S × E × F × T)
```
- ** T` T` **: Tsawg kawg phab ntsa tuab (nti / hli)
- ** A` P` **: Tsim Kev Tsim (PSI / Bar)
- ** `d` **: the reper inc (nti / hli)
- ** A - ** ** Kev ntxhov siab pub (khoom-tshwj xeeb, e ., api 5} {{7}000 psi)
- ** `e` **: Kev sib koom ua ke ntev (1.0 rau seamless)
- ** `f`: tsim nyog (0.5-0.8, raws li qhov chaw)
- ** T` T` **: DERATION DERERAL Factor (feem ntau 1.0 rau<250°F)
* Ib txwm muaj kev tso cai corrosion (e {{{0} g}}}}}}}}} 0625 ntiv tes) thiab round mus rau cov qauv tuab. *
### 3. Qhov luaj li cas yog cov roj yeeb?
- ** Hloov Pipelines **: 4-48 nti (100-1,200 mm) ntau tshaj: 8 ", 12, 36" {{{{{{{{{{{
- ** Ua kom zoo **: 4 . 5-20 ntiv (114-508 mm).
- ** LWJ YEEB **: 3 .} 5-6.625 nti (89-168 hli).
* Qhov loj me yog nyob ntawm tus nqi txaus, siab, thiab cov ntawv thov . *
### 4. Koj cov yeeb nkab twg yog siv rau cov roj?
- ** Cov yeeb nkab roj teeb ** (API 5L SPECATION) rau 95% ntawm Pipelines {}}
- ** casing / tubing **: API {{{} g}! {}, N80, p110) {8}
- ** LWJ YEEB **: High-zog Alloy Hlau (API 5DP, e {}}}}, s13} {}
- ** ** Corrosion-resistant alloys ** (e .!
### 5. Ntev npaum li cas yog cov roj carfield?
- ** Cov pob qij txha txhua tus **: 30-45 ft (9-14 m) rau pipelines; 40-80 ft (12-24 m) rau tho yeeb nkab .
- ** Pipeline tag nrho **: Pua pua rau txhiab mais / km (e .} pipeline: 800 mais) {5 {5 5}
- ** Downhole tubulars tuaj yeem tshaj 30,000 ft (9,144 m) {5}.
* Nco tseg: Cov qauv sib txawv ntawm thaj av-ib txwm sab laj cov lej API / ASME CODES thiab cov cai hauv zos. *
