Automated Calculation of Average
Flow Capacity using Workflow Editor
Petrel 2014.5
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Automating Average Flow Capacity Calculation using Petrel's Workflow Editor, Study Guides, Projects, Research of Earth Sciences
A workflow developed in petrel's workflow editor to automate the calculation of average flow capacity for each production zone at every well, utilizing permeability logs. The workflow consists of generating perforation logs, creating separate permeability logs for each production zone, calculating average permeability, determining thickness, deriving average flow capacity logs, and writing statistics to an output sheet.
Typology: Study Guides, Projects, Research
2017/2018
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Automated Calculation of Average
Flow Capacity using Workflow Editor
Petrel 2014.
This short document describes a workflow built in Petrel’s Workflow Editor upon a client’s request. The objective is to automate calculation of the average flow capacity (kh) of each production zone, at each well, using the permeability logs.
The workflow executes the following operations:
- A perforation log is generated for each well.
- Separate permeability logs are created for each production zone, at each well.
- An average permeability log is derived using the Well Log calculator.
- Thickness of the perforation intervals is calculated.
- An average flow capacity log is derived by multiplying the average permeability by the thickness of the corresponding perforation interval.
- Statistics are written to an Output sheet.
- The average permeability and flow capacity are read from the Output sheet.
- Well name, perforation number, thickness, average permeability and flow capacity are written to the Output sheet, in tabular format.
Thickness of a production zone is calculated by subtracting the Top MD from the Bottom MD of the corresponding perforation.
The average permeability- thickness logs of all perforations in a well are combined into one log, called AvPermH.
Well name, perforation number, thickness, average permeability and flow capacity are written to an Output sheet, in tabular format.
The variable “counter” is used to count the perforations in each well and to label the generated logs accordingly (e.g. Perm_1, AvPermH_2 etc.)
Please note that Petrel does not allow to open the Well Log calculator with a variable as Well input.
Therefore, to set the template of the log you are generating and to resample it from a given log (e.g. MD), you need to drop the “Wells” folder as Well input and double-click on the Well Log calculator in the workflow.
Perforation and average flow capacity logs
Output sheet - Average Kh values per perforation
Input pane - Generated logs
To be deleted before running the workflow