InterCorr Software

InterCorr International, Inc.
Contact: 281-444-2282 for Details
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System Description
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While PredictPipe 3.0 uses a complex computational model for determining the corrosion rate, the ease-of-use in applying the system to obtain meaningful answers is transparent. In the following description, we will go through a typical consultation in a step-by-step manner
A Brief Overview

The user can specify data for any of the parameters and watch the effect of that parameter on the corrosion rate in the system instantaneously. The system starts with a set of default values and calculates a corrosion rate based on any changes to the displayed values. A typical consultation will involve the following five steps:

Specification of Production Data: This is the first step to begin a consultation. The production data in terms of Gas Production, Total Water Production (used to compute phase behavior) and Oil Production Rates can be entered. H2S and CO2 mol% can also be entered at this stage. The convert button serves to view the ratios, partial pressures, and superficial liquid velocity as computed dynamically. Clicking on OK stores this information and updates the main screen with these values as well as performs phase behavior computations to predict existence of liquid phase.

Specification of Water Analysis data: The Water Analysis Screen can be used to input data relevant to different cations and anions (16 species) from your water analysis.

Chlorides/oxygen/ sulfur: Chlorides and sulfur typically make corrosion worse if the process has been initiated by the presence of acid gases. Their role, while not as critical as that of H2S or CO2, is significant because these parameters can significantly increase corrosion rates in mildly corrosive systems. Presence of oxygen beyond 20 ppb even in mildly acidic systems can lead to significant corrosion rates, especially with high chlorides and high flow rates at elevated temperatures.

Pipeline Analysis: Clicking on the Pipeline Analysis buttons displays the Pipeline Profile Inputs Screen used to perform ICDA. This tool performs comprehensive flow modeling for the pipeline system provided to generate the corrosion distribution profile, water holdup and critical angle values. The pipeline geometry can be input by typing in the lengths and inclinations of up to 8 segments or by importing a CSV or MS Excel file.

Successful pipe geometry input will generate the overall graphical view of the piping system as shown below. Using the arrow keys to select the segment, detailed parameters about the segment can be viewed. The segment selector moves along the pipeline marking the current segment selected. The color of the selector and the angle changes to red to mark the segments with angles greater than the critical angle and hence susceptible to internal corrosion.

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InterCorr International, Inc.
14503 Bammel-N. Houston, Suite 300
Houston, Texas USA 77014
Tel: 281 444-2282, Fax: 281 444-0246
copyright 2000 InterCorr International, Inc