Skip to main content

Off Pirallahi island · Nearshore

Nearshore pipeline repair at Pirallahi

A corroded section in up to 4 m of water replaced, then a 24-⁠hour hydrotest

Client
An operator of a shallow-water field
Period
June 2025 – August 2025 (3 months)
Most people on site in a day
36
Man-hours
41,500
Lost-time injuries
0
Jack-up rigs and a crane barge in shallow water at sunset

The brief

Part of a 12-⁠inch line in shallow water off Pirallahi had been weakened by corrosion and carried 38 temporary clamps fitted over the years. The client wanted the whole section replaced.

In figures

of 12-inch pipe replaced
2.6km
from earlier temporary repairs removed
38clamps
of work over water
64days

How the work went

  • The line lay in up to 4 m of water: pipe was welded into strings on the shore and lowered into the water.
  • Every weld was ultrasonically tested and the joints were coated.
  • The crew reached the site by work boat every day; 7 days were lost to the sea, and the schedule had allowed for them.
  • The new section passed a 24-⁠hour hydrotest.

Result

2.6 km of pipe replaced in 64 days; the line came back on stream on the planned date.

The client’s words
Weather stand-⁠by was in the schedule from the start, so the deadline held.

The client’s pipeline engineer

Services

Equipment used

  • An above-ground pipeline crossing green hills

    Pipelayer · 18.1 t

    Caterpillar PL61

    Lökbatan yard

    with operator
    ₼720 / day
    without operator
    ₼520 / day
  • A worker in a protective suit cleaning a surface with a compressed-air hose

    Compressor · 27.6 m³/min

    Atlas Copco XRVS 1000

    Lökbatan yard · ×2

    with operator
    ₼480 / day
    without operator
    ₼340 / day
  • A mobile generator with its control panel open

    Generator · 500 kVA

    Caterpillar XQP500

    Lökbatan yard · ×3

    with operator
    ₼520 / day
    without operator
    ₼380 / day

Other projects

Have similar work?

Pick the service, the site and the length: the price with crew and equipment is worked out at once.

Request a quote
Call usMessage on WhatsAppEquipment hireRequest a quote