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Action Report for 30in SCW Line at Jetty 1&2 Junction
2
Repair of leaking 2600PIP001 30” SCW line at Jetty 1 & 2 junction Sep 26 2015 Page 1 PILIPINAS SHELL PETROLEUM CORPORATION Tabangao Refinery, Batangas City Reliability and Integrity Department To : Tito Eusebio Date : Sep 26 2015 From : Jonanette Aclan-DeCastro Ref. No. : ACTION REPORT Plant : Oil movements Item : 2600PIP001 30” SCW line Subject : Repair of leaking 2600PIP001 30” SCW line at Jetty 1 & 2 junction Finding(s): Severe leak noted on the 30” SCW line located at the existing patch repair which is welded on the wear pad. The leak location is resting on the concrete support. The wear pad also noted with severe crevice corrosion. Recommendations: 1. Actual site dimension shall be taken prior to fabrication. Note: Encapsulation shall be beyond the concrete support to enable welding works and this is approximately 1” from the circumferential weld of the wear pad. 2. Prepare the encapsulation materials needed for the repair, CS plate with ~10mm thick and a ½” or ¾“ diameter nozzle and a blind flange. See attached drawing. Nozzle will be used to divert the flow of the SCW while welding works on the other portion of the encapsulation is ongoing. 3. Internal of the encapsulation (including nozzle) should be lined with Belzona1111 (Option1) or marine epoxy (option2) and should be fully cured. External should be blasted to SA2.5 and painted to FC1-N. 4. Encapsulation should be partially fabricated prior to insertion between SCW and support; fillet welding, using E7018 electrode, SMAW (For partial fabrication, see attached drawing, highlighted in green, this is the west part of the encapsulation). 5. Visual inspection and PT of the partially fabricated encapsulation. 6. Since the location of the leak is resting directly on the concrete support beam, lifting of the SCW line is necessary. 7. Once lifted, remove the corrosion on the wear pad. Blast and primer coat. 8. Insert the partially fabricated encapsulation between the SCW line and the support coming from the west side of the line. 9. Divert the flow of the leak to enable welding of the other parts of the encapsulation via fillet welding, using E7018 electrode, SMAW. During welding, nozzle should be opened. 10. Best effort shall be done in repairing the lined internal damaged by welding works. 11. After completion of the encapsulation, blind the nozzle and use a CAF gasket. 12. Visual inspection and PT of the encapsulation Please contact Janette de Castro / Rex Velasco for inquiries.
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Transcript of Action Report for 30in SCW Line at Jetty 1&2 Junction
Repair of leaking 2600PIP001 30” SCW line at Jetty 1 & 2 junction
Sep 26 2015 Page 1
PILIPINAS SHELL PETROLEUM CORPORATION Tabangao Refinery, Batangas City
Reliability and Integrity Department
To : Tito Eusebio Date : Sep 26 2015
From : Jonanette Aclan-DeCastro Ref. No. :
ACTION REPORT
Plant : Oil movements
Item : 2600PIP001 30” SCW line
Subject : Repair of leaking 2600PIP001 30” SCW line at Jetty 1 & 2 junction
Finding(s):
Severe leak noted on the 30” SCW line located at the existing patch repair which is welded on the wear pad. The leak location is resting on the concrete support. The wear pad also noted with severe crevice corrosion.
Recommendations:
1. Actual site dimension shall be taken prior to fabrication.
Note: Encapsulation shall be beyond the concrete support to enable welding works and this is approximately 1” from the circumferential weld of the wear pad.
2. Prepare the encapsulation materials needed for the repair, CS plate with ~10mm thick and a ½” or ¾“ diameter nozzle and a blind flange. See attached drawing. Nozzle will be used to divert the flow of the SCW while welding works on the other portion of the encapsulation is ongoing.
3. Internal of the encapsulation (including nozzle) should be lined with Belzona1111 (Option1) or marine epoxy (option2) and should be fully cured. External should be blasted to SA2.5 and painted to FC1-N.
4. Encapsulation should be partially fabricated prior to insertion between SCW and support; fillet welding, using E7018 electrode, SMAW (For partial fabrication, see attached drawing, highlighted in green, this is the west part of the encapsulation).
5. Visual inspection and PT of the partially fabricated encapsulation. 6. Since the location of the leak is resting directly on the concrete support beam, lifting of
the SCW line is necessary. 7. Once lifted, remove the corrosion on the wear pad. Blast and primer coat. 8. Insert the partially fabricated encapsulation between the SCW line and the support coming
from the west side of the line. 9. Divert the flow of the leak to enable welding of the other parts of the encapsulation via
fillet welding, using E7018 electrode, SMAW. During welding, nozzle should be opened. 10. Best effort shall be done in repairing the lined internal damaged by welding works. 11. After completion of the encapsulation, blind the nozzle and use a CAF gasket. 12. Visual inspection and PT of the encapsulation
Please contact Janette de Castro / Rex Velasco for inquiries.
Repair of leaking 2600PIP001 30” SCW line at Jetty 1 & 2 junction
Sep 26 2015 Page 2
Piping Class
Design Temp Prepared by:
Oper Temp Jonanette A De Castro
Action Party Remarks:
Drawing:
