Upstream Oil and Gas Well Performance Analysis
Industry
Use Case Activity
Use Case Business Improvement

Challenge

Wells require a significant amount of engineering to properly maintain, and it can be difficult to ensure that their complex completion design and spacing are optimized. This can be a drawn-out process with room for human error, as calculations are typically performed manually on paper in order to identify notable treating pressure changes over time. This analysis must be completed on thousands of wells to ensure proper optimization, and in some cases, it does not get completed at all.

Solution

Using Seeq can eliminate manual data entry and dramatically shorten analysis time, increasing process efficiencies. Seeq software is able to complete the calculation across all wells within an enterprise and to showcase notable changes over a given period of time. It can enable performance analysis, such as the delta between Instantaneous Shut-in Pressure (ISIP) and settled pressure. In addition, it can help with the identification of these stages across multiple walls on the same completion system or “zipper” systems.

Benefits

Seeq analysis not only eliminates manual data entry for evaluating engineers, but it provides them with both calculations and visual data to optimize completion across wells. This dramatically shortens the total analysis time, and significantly reduces room for error, thus increasing overall process efficiency.

Data Sources

Prior to the ability to utilize Seeq software, engineers performed this analysis by using a pencil or pen and paper and manually drawing a line on paper in an attempt to calculate the ISIP.

  • Process Data Historian: OSIsoft PI
  • Asset Structure: OSIsoft Asset Framework

Data Cleansing

  • Allows for the removal of invalid data points from comm dropouts.
  • "Zipper" system wells are isolated so that analytics can be performed on each individual well.

Calculations and Capsules

  • Availability of capsules for well stages and during the time immediately after well shut-in
  • ISIP is calculated based on the average pressure after the stage, while the “Delta Pressure” is the ISIP minus the settling pressure. This is calculated to provide the completion engineer with more comprehensive insight into how the well is behaving.

Summarizing Results

For completion engineers performing well analysis, ensuring proper calculations with less manual effort helps improve efficiencies all around. Utilizing Seeq provides engineers with a significant reduction in effort and elapsed time, and supplies Delta pressures for each well which can be benchmarked and reported over time, providing a wholistic and thorough process evaluation.