A multifactorial co 2 Corrosion Prediction Chart Establishment Method
A technology for establishing methods and predicting graphs, applied in design optimization/simulation, etc., can solve problems such as corrosion, achieve accurate prediction, overcome incomplete consideration of factors, and break through the effect of narrow effective input range
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[0035] Simulate the actual working conditions of the XX oilfield, and draw a corrosion prediction chart for the D-grade rod steel. The working conditions are as follows: the wellbore temperature ranges from 60°C to 120°C, the CO 2 The partial pressure range is 0.1MPa~0.3MPa, and the chloride ion concentration range is 1000ppm~3000ppm. The specific implementation steps are as follows:
[0036] Step 1: Determine the parameter ranges of various influencing factors according to the actual working conditions of XX Oilfield, where the temperature parameters are 60°C, 75°C, 90°C, 105°C, 120°C, CO 2 Partial pressure parameters are 0.1MPa, 0.2MP, 0.3MPa and chloride ion concentration parameters are 1000ppm, 2000ppm, 3000ppm;
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