Thank you all for your valuable input..
As conclusion 3 options can be consider:
1) Reroute the submerged part keeping in mind that the bottom of pipe having enough clearance from the Highest possible water table.
2) Drain the water and put gatch upto 1 meter hight above the water level + 200 mm...
Is pipeline buried? was buried but now exposed/covered with water
If not or part, how much The total length of MOL for rehabilitation 9.5 KM
If buried how deep? Was buried @ 1 meter
what is the coating? 3LPP
what is the field joint coating? hot shrink sleeves
What is operating temperature...
The MOL was buried but now exposed/covered with water, it is the same one in the picture.
Unfortunately, The pipeline was designed without concrete coating or any measures towards such situation.
Onshore buried 36" Main Oil Line is submerged under water for around 16 km during winter seasons and high tide conditions. Access and maintenance of MOL is very difficult during such conditions.
Design Prussure = 120 barg
Design Temperature = 85 C
Material API 5L X 60
NPS = 36 "
Therefore, we...