Forecast consolidation

A consolidation is a summation of forecasts from constituent wells (historical data is aggregated). This analysis type can only be created at the group level, and is used to sum up forecasts within the group. Therefore, when creating a forecast consolidation for a set of wells, it must be created from a hierarchical group, or from a custom group (excluding reserve classification consolidations). Similarly, when creating a consolidation for a set of layers in a multilayer well, it must be created at the well level.

If you want to consolidate classified decline analyses, and have the unclassified decline analyses produced fluid included, you need to change a default setting in the Options dialog box. For more information, see classified consolidations.

This forecast works with your Harmony Forecast™ license.

Be aware that classified consolidations have an additional field for the reference date.

When you add a forecast consolidation (see analyzing an entity), you can consolidate by reserve classification or forecast name.

Create Consolidation dialog box

  • Reserve Classification — when selected, the Classification drop-down list is enabled. Note that classified consolidations only include classified forecasts with active reference dates.
  • Forecast Name — when selected, the Name drop-down list is enabled.
  • Classification — select your reserve classification from the drop-down list. There are two types of classified consolidations: proved (P) and total (T). There are nine P consolidations: PNP, PPNP, PPPNP, PDP, PPDP, PPPDP, PUD, PPUD, and PPPUD. The T consolidations are aggregates of the Ps, so TP = PNP + PDP + PUD. TPP = PPNP + PPDP + PPUD. TPPP = PPPNP + PPPDP + PPPUD. For more information on classifications, see reserve classification.
  • Name — select your analysis from the drop-down list. Note that named classifications are case sensitive. For example, Analysis 1 and ANALYSIS 1 cannot appear in the same consolidation.

Consolidations can be done on ratio forecasts, water-oil ratio (WOR) / oil cut forecasts, and custom forecasts. If forecasts do not have the same forecast start date (FSD), the consolidation begins at the earliest FSD, and historical production is used for wells whose FSD starts later. Note that you cannot edit consolidation plots or results because they are directly governed by the forecasts of the constituent wells of the group.

For any existing well with Uptime Forecasting enabled, the adjusted values are considered for Forecast Consolidation.