Skip to content

Sampling Data


In this module, the user will input any available sampling data for a given well. This data should be a representative sample, either; (1) reservoir representative, or (2) in-situ representative.


Reservoir Representative: Any uncontaminated fluid sample produced from a reservoir is automatically representative of that reservoir.

In-situ Representative: A sample representative of the original fluid(s) in place.

At least one entry of sampling data is required before running any production data diagnostic modules (e.g. compositional tracking, separator oil shrinkage, and common process conversion). In the absence of sampling data, whitson+ utilizes the previouly inputted well fluid definition in fluid definition module.


Each of the sample should come with the sampling date and one method by which the composition is defined. There are six available methods, namely:

  1. GOR
  2. API and GOR
  3. GOR and Saturation Pressure
  4. Dry Gas Composition
  5. Separator Compositions
  6. Fluid Composition

A more detailed description on each method, including the required input data, can be found here.


One has the option to upload sampling file(s) if they are available.

Once input, the predicted wellstream composition can be seen. To delete a given sample, simply click the trash bin icon.

Mass Upload

When uploading a large amounts of sample data becomes tiring and ineffective, whitson+ provides solution with so-called mass upload feature. This is an option where one can easily upload any number of sample data in an instant.


Follow these steps:

  • Download excel template provided by whitson+.
  • Fill in all information on all samples. As of now, only two methods are possible for the use of this feature (e.g. API and GOR and Separator Compositions method).
  • Upload the excel file to whitson+.