Recently ICR Norway designed and mobilized for a large diameter wrapping repair on a critical component at Statoil Kårstø. The first phase we completed within day 6 and over the weekend. Working two 12h shifts with 3 technicians and local support we completed this major repair in 16 days. This proved that we are in fact as quick and flexible as we have stated.
During a periodic inspection of a large diameter process column – a key component at Kårstø, Statoil discovered two areas critically corroded to the extent where the vessel integrity and the compliance of PD 5500 were jeopardized. ICR-Norway (ICRN) was tasked to reinstate the integrity using Technowrap.
The scope was to provide an engineered design with a 10 year life time based on design conditions of: 30 bar, -90 degC to 125 degC temperature range and environment loads, one being axial bending moment of 4250Knm. The two repairs were one full circumferential repair of 12m x 3.5m and one patch repair of 1.5 m2. The repair required a 15 layer design.
The main challenge was time. Due to the short time frame we initiated planning on day 0, final draft issued on day 3. Packing and mobilization of 6 ICRN supervisor and equipment was done over the weekend and day 6. On day 7 ICRN was ready on site to initiate repair.
The solution was to run two 12h shift to ensure a smooth around-the-clock operation. To cope with the temperature range, Technowrap SRS HT was applied. ICRN field technicians worked seamlessly with Statoil project team and ICRN support team was on 24h standby to accommodate adjustments as the project unfolded.
«Our experience with ICR and their Technowrap STS HT solution was professional and swift delivery from start to finish of the project. Their technical and operational personnel worked well together with Statoil and our O&M organization in a greatly manner. Their HSE standards were good throughout the installation. This Technowrap method gave Kårstø a good solution to a challenging corrosion damage on one of our process columns.»
– Leif Einar Hjortland. Principal Engineer Maintenance, Statoil Kårstø. 22.11.2016