Installation of Pexgol pipe to transport brine at high pressure in a borehole.
Mekorot, the national water company of Israel and the country’s top agency for water management, required a corrosion resistant pipe that could hold very high pressure in a deep borehole (300 m). Furthermore, the pipe needed to be able to resist Chloride concentration of 10,100 mg/l.
A custom-made Pexgol pipe was installed (pipe 250 mm, class 43). The Pexgol pipe was provided in two coils of 150 m each. The two coils were connected by a special coupler that can hold the weight and the high pressure.
The other option that Mekorot considered was a pipe made of super duplex. Since installation of super duplex would take around 3 weeks and cost (approximately) 3,000,000 NIS ($9.3K) while installation of a Pexgol pipe is 3 days and cost about half. Pexgol pipe was the obvious choice.
Israel | 2020
Pressure: 36 bar
Flow rate: 120 m^3/hr
Chloride concentration: 10,100 mg/l
Pexgol 250 mm (10”) Class 43
Brine transport at a Borehole
300 m / 984 ft