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Overview of OCTG-Compass

OCTG-Compass models and predicts corrosion under the prevailing operating conditions and provides guide for CRA materials selection for oil and gas production systems as per international standard ISO 15156. Users of OCTG-Compass simply enter the production data, and the software will compute the in-situ pH as per ISO 15156, the pitting resistance equivalent number (PREN) as per ISO 15156, the corrosion rate when the selected alloy is used below the temperature limit, the SSC environmental severity as per ISO 1516, the CRA's susceptibility to sulfide stress cracking (SSC) and stress corrosion cracking (SCC). Figures 1 and 2 below show OCTG-Compass in use.

Figure 1 Selecting a CRA
 

Figure 2 OCTG-Compass recommendations based on input
 

In Figure 2 above, the user selected 13Cr alloy that has a temperature limit of 150°C.
In this user scenario, OCTG-Compass recommends 22Cr or 25Cr duplex to meet the corrosion resistance under the prevailing operating conditions. The applications of OCTG-Compass are immensely useful in engineering design, corrosion prediction and CRA materials selection for oil and gas production systems.
 

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OCTG-Compass, giving you the right directions in CRA materials selection for oil and gas production systems.

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