case studies


  • December 05, 2018


    Composite Leak Repair

    Leak area: 8inch Valve flange
    System Medium: Natural Gas
    System Pressure: 2.5Bar
    Valve body: Cast Iron
    Flange Material: Carbon Steel
    Leak Conditions:
    A natural gas leak was found on an 8 inch valve’s flange; the system pressure was 2.5 bar. The leakage was detected at 2200hrs. Due to the high risk of ignition and safety for everyone, immediate containment was required.
    Traditional Leak Containment Versus Composite Leak Repair due to the medium of the leak, any solution with hot work was not permitted. With the irregular valve body shape, it added another level of difficulty to the repair method. By Using Traditional Leak Containment would require longer lead time to fabricate and install, concurrently the system would be required to shut down. Under this circumstances, resolving the leak immediately was our priority. Therefore, Composite repair methodology was adopted in this scenario. Composite Repair allowed the repair to start immediately and with the added flexibility to seal leak on odd-shaped object.

  • July 21, 2017

    Leak Repair & Reinforcement Service

    Our client is a well-known oil and gas company in Indonesia, with presence in many South East Asian countries.  The sump tank at our client’s plant had heavy corrosion, cracks, and leaks.  Due to the content of the tank, repair work to stop the leak had to be performed without hot works.  For this reason, the client reached out to Alchem for our composite repair solutions.

  • April 20, 2017

    Leak Detection Service, Pipe Repair & Reinforcement

    Our client is a well-known multinational banking organization headquartered in Singapore, with presence in most Southeast Asian countries. Due to significant leakage and corroded surface area on their existing pipeline system, the client requested a full inspection of the entire pipeline system on every level of their building.  This included soil pipes, vent pipes, and kitchen waste pipes.  Depending on the inspection results, the client would decide on a pipe replacement or pipe repair solution.

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