Trans-alaskan Pipeline Flashcards
1
Q
where
A
Prudhoe bay, Alaska, USA
2
Q
what are PIGS
A
robots used to clean, inspect and repair the pipe remotely
3
Q
why
A
using technology to exploit the tundra whilst minimising damage to it
4
Q
what do pump stations do
A
heats and pressurises the oil to move it over Brooks and Alaskan Mt ranges as well as 34 major river crossings
5
Q
why raised on supports
A
raised 3m and buried where no permafrost exists to allow animal migration and minimise permafrost thaw
6
Q
why insulated
A
warm pipe for flowing oil has to be insulted to stop permafrost thaw
7
Q
what do teflon slippers do
A
- zig zag pattern and sits on siding feet covered in slippery teflon coating to allow it to flex in an earthquake
