 Socrates-B |
Selection of CRAs Through Environment Specifications - Non Production EnvironmentsDevelopments in materials technology have led to the use of corrosion resistant alloys for surface and subsurface applications in the oil and gas industry. This technology has revolutionized the industry in terms of utilizing metallurgical solutions to corrosion problems versus conventionally used chemical corrosion inhibitors. Currently, there is a wide range of available alloys to choose from for these applications. The Socrates-B development effort, spanning over thirty months, has produced a significant software system that aids in making decisions related to evaluation of different CRA materials in non-production environment. Socrates-B is a sister program of the Socrates™ system for selection of CRAs in production environments. Socrates-B can be used to evaluate CRAs in three types of non-production environments, completion fluids, stimulation acids and injected water. The Socrates-B system assesses the severity of each of these environments to determine applicable CRA materials for service. Socrates-B also determines a steel corrosion index indicative of the potential corrosion rates in a particular environment. The Socrates-B system selects CRA through material evaluation at five hierarchical levels: |
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Significantly increases user-productivity in addressing material selection issues through an easy-to-use interface that provides a wide variety of information regarding CRAs in non-production environments | |
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Material selection based on characterization of the environment in terms of operating pressure, temperature, pH, H2S, Chlorides, Elemental Sulfur, aeration, Gas to Oil Ratio and Water to Gas Ratio/water cut | |
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CRA evaluation for stress corrosion cracking (SCC), hydrogen embrittlement cracking (HEC) and sulfide stress cracking (SSC) | |
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CRA evaluation for resistance to pitting corrosion | |
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Selection of final set of materials based on application related constraints. | |
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