GUIDE TO PRODUCTION FORECAST IN R3

More documents

Info

TYPE WELL PROFILES Engineers often find the need to generate Type Well Profiles from a group of analogous wells to represent the forecasted behavior of new wells in a development. R3 makes this really easy to do. Production profiles of one phase, with the option to include forecasts, are normalized to first month of production. Data can be culled and assets can be made active/inactive, until you have a representative data set of your area. The provided QC Chart helps with this process, by showing the ratio of the P10/P90 values for each month of data. Any values greater than 10 on this chart represent a data set with a wide range of values, indicating wells that may not be similar enough to group together. The Data Tab shows all data, including culled points. The Type Well Profiles can be generated using the Normal Distribution Method, or the Empirical Distribution Method. The program generates data points for various statistics of the data set – Mean, Max, Min, Mode, P10, P50, and P90. Using R3 Graphics, the user fits curves to some or all of these statistics, and saves the file. The steps are easy to repeat for any additional phases, or groups of wells. Once a TWP file is saved, it can be called up in Asset Manager, and any of the fits, IE P10, can be applied as a forecast to an asset. This can be done manually, with our Well Schedule tool, or within the Query Action Tool.
UNCONVENTIONAL FORECASTING R3 has several featured curve types to assist with forecasting unconventional resources. First, a multi-segment forecast curve where a hyperbolic forecast switches to an exponential forecast at a desired decline rate, for wells that experience multiple flow regimes. Another curve offered is a Stretched Exponential Decline Curve, which is a variation on traditional Arps that is better suited for unconventional reservoirs. (This method always gives a finite EUR value, even if no abandonment constraints are used). A third special curve type is the Duong Method curve, for use with reservoirs with low permeability and long periods of transient flow.
Page 1 and 2: PRODUCTION FORECAST Forecasting pro
Page 3: ANALOGUE TABLE The analog table is

GUIDE TO PRODUCTION FORECAST IN R3

Create successful ePaper yourself

Delete template?

Save as template?