Well Completion Analysis
Thu, 10/04/2018 - 13:46
Oil & Gas
Optimizing well completion design and well spacing is complex
Wells interact with the reservoir and each other, requiring a lot of engineering expertise.
Calculations are performed manually on paper to identify treating pressure changes over time.
Analysis must be completed on 1000’s of wells; sometimes it is not done at all
Perform analysis such the delta between Instantaneous Shut-in Pressure (ISIP) and the settled pressure.
Identifying these stages across multiple wells on the same completion system, called “zipper” systems.
Seeq can do the calculation across all the wells in an enterprise and visualize the changes over time.
Calculations and visuals provided completion engineers with data to optimize completions across wells.
Process Data Historian: OSIsoft PI
Asset Structure: OSIsoft Asset Framework
Prior to using Seeq, the engineers performed this analysis by manually drawing a line on paper to calculate the ISIP.
Invalid data points from comm dropouts are removed.
The wells on the zipper systems are isolated so analytics can be performed separately on each well.
Calculations and Capsules
Capsules for well stages and the time just after the well is shut-in.
ISIP is calculated based on the average pressure after the stage.
The “Delta Pressure” is ISIP minus the settling pressure. This gives the completion engineer insight into how the well is behaving.
Delta pressures for each well can be benchmarked and reported over time.
Use Case Activity
Use Case Business Improvement
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