Setting up Minor Phase Ratio Cases

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Setting up Minor Phase Ratio Cases

Navigation: Database Settings > Products & Phase Configuration > Default Phase Configurations >

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The Minor Phase Ratio Product Configurations are set up so that either Gas or Oil is the Major Phase, and the other product is the Minor Phase. The Minor Phase product is calculated based on a ratio product that can be inputted as a rate/time projection or a rate/cum projection. For more details, see the default phase configurations to see the exact setup and description of each one.

hmtoggle_plus1 How Are the Products Defined?

The Major Phase Product (which will be Gas or Oil) - This is the only product that is required to have a projection so that the case runs by default.

•Ratio (this is either GOR or Yield) - Project the Yield if Gas is the Major Phase or GOR if Oil is the Major Phase, so that the Minor Phase product is calculated using the appropriate formula. The rate for the GOR/Yield projection can be inputted as a flat ratio or it may change over time or as the cumulative volume of the Major Phase product increases. The best way to input a flat ratio is by using a flat projection segment. Even though the future volumes are scheduled, the historical volumes for the ratio product is calculated as Oil/Gas (for Yield) or Gas/Oil (for GOR).

•Minor Phase (this is either Oil or Gas) - This product is a formula, calculated as the Major Phase times the Ratio product.

•Oil = Gas * Yield

•Gas = Oil * GOR

hmtoggle_plus1 How Do I Set Up Minor Phase Ratio Cases?

1.Find the case to edit on the Case List.

2.Go to the Projection Ribbon and change the Phase Configuration to one of the four default phase configurations for Minor Phase ratio products.

•Minor Phase Ratio (Cum) - Gas or Oil - The Major Phase product and a ratio product are projected. The Minor Phase is calculated as a result of those two projections. For example, if Oil is the major phase, project Oil and GOR and then Gas volumes is calculated using a formula (Gas = Oil * GOR). The ratio is scheduled on the graph as a rate/cum projection. The ratio can be flat or change as cumulative production increases.

•Minor Phase Ratio (Time) - Gas or Oil - The Major Phase product and a ratio product are projected. The Minor Phase is calculated as a result of those two projections. For example, if Gas is the major phase, project Gas and Yield, and then Oil volume is calculated using a formula (Oil = Gas * Yield). The ratio is scheduled on the graph as a rate/time projection. The ratio can be flat or change over time.

3.Go to the Graph to input the projections. If there isn't a graph open, go to the Graphs flyout and double-click on the name of a graph to display it in the view.

4.On the Graphs, double-click on the empty graph to add products. Double-click on a product in the Products pane on the left to add it to the graph. A maximum of six products can be displayed at the same time on the graph. Drag and drop the products  from the available list on the left onto the section on the right. Make sure to display at least the products listed above - the Major Phase Product, the Ratio Product and the Minor Phase Product.

5.Go to the Projection ribbon and create forecasts for the Major Phase and Ratio products. For more information, see how to create projections on the graph. Also, if the Minor Phase product is displayed on the graph, its resulting calculated values can be viewed as the projections for the other products are updated.