Houston, TX |
When it comes to compression, the most expensive problems are often the ones you never see coming.
In the final episode of our Know Pressure: Your Guide to Compressor Fleet Management webinar series, the Detechtion team breaks down three real-world examples of hidden compressor issues and the practical lessons they reveal for managing production, reliability, and operating cost.
Key Takeaways:
- A gas compressor can be running normally while still limiting production, increasing risk, or wasting power.
- Loading curves, rod load, recycling, and other operating data can reveal hidden compressor issues before they become more expensive.
- Effective compressor fleet management turns data into action by helping compression teams evaluate safe options, make informed changes, and confirm the result.
Lesson 1: Know Where the Compressor Stands on Its Loading Curve
The first lesson from the webinar dealt with understanding where a compressor is operating relative to its loading curve.
In the first case study, the Detechtion team reviewed a pair of compressors at an acquired facility. The units were running in what could best be described as a “set it and forget it” configuration. They were stable, but no one had recently evaluated whether the settings still matched current field conditions.
After the compressor units were added to Detechtion’s analytics platform, our team identified that they were operating off curve. Horsepower utilization was around 50%, and cylinder capacity was roughly 70%. In other words, the units were running, but they were not fully using the capacity already available.
From there, our team modeled potential configuration changes. The goal was to understand whether the units could move more gas at the same suction pressure, move the same amount of gas at a lower suction pressure, or achieve some combination of both.
After the approved configuration changes were made, the units reached nearly 100% cylinder capacity. Suction pressure dropped into the expected range, and production increased. Based on the webinar example, the added production was valued at just under $250,000 per year.
In this case, the lightly loaded compressor was not automatically a problem to fix. It was a signal to evaluate the unit’s position on its loading curve and determine what action, if any, made operational sense.
Lesson 2: Evaluate Reliability Risk Before Pushing for More Production
The second lesson focused on the relationship between production gains and reliability risk.
In this case study, an operator adjusted pocket settings after a third-party outage to move more gas that was behind pipe. The change worked from a production standpoint, but it also increased rod load to about 98%, putting the unit in a higher-risk operating condition.
Because the operator entered a manual data point into the system, Detechtion received an alert and was able to review the situation quickly. Instead of continuing to run in that higher-risk condition, our team worked with the operator to adjust the configuration and raise the suction pressure set point. That helped move more gas while keeping rod load below the previous level.
This example shows why compressor analytics can be valuable during day-to-day operating decisions. The original change was not made carelessly. The operator had a clear production goal. But without visibility into the mechanical impact, a production-focused adjustment could have created unnecessary reliability risk.
For operators, that is where compressor data becomes especially useful. It can help teams understand not only whether a change improves production, but whether it does so safely.
Lesson 3: Reduce Compressor Appetite When Recycling Becomes Routine
The third lesson centered on what happens when compressor capacity no longer matches actual process demand.
In the third case study, the Detechtion team reviewed an oversized compressor that had been recycling for years. In the webinar, recycling was described as a condition where the compressor is compressing more gas than it is selling. Some recycling may happen occasionally as part of normal operation, but continuous recycling can be a sign that the unit is doing more work than the process requires.
In this case, the compressor had too many stages and too much cylinder capacity for the amount of gas being fed to it. The result was unnecessary power consumption.
After evaluating the available options, the operator chose to install crank-end spacers on the first-stage cylinders. Once the change was made, the compressor unit used about 1,100 fewer kilowatt-hours per day, resulting in an estimated $40,000 in annual electricity savings.
Unlike the first example, this case involved a small hardware investment. But because the savings were measurable, the change had a clear business case.
When recycling becomes part of normal operation, operators may be missing a power savings opportunity. Reviewing the compressor’s capacity against actual process demand can help determine whether the unit is doing unnecessary work.
Turning Compressor Data Into Measurable Results
Together, these three lessons show why compressor data needs to lead to action. The process starts with the right data, but it does not stop there.
Operators need a repeatable way to analyze current conditions, evaluate safe options, make the selected change, and confirm the result. That is how compressor insight becomes measurable improvement across production, reliability, and operating cost.
Watch the full webinar below for a closer look at the three case studies and the steps the Detechtion team used to evaluate each opportunity.
Jump to a Topic:
- Why hidden compressor issues can become expensive and avoidable (1:00)
- Overview of the three compressor case studies (4:20)
- Case study #1: production optimization (6:20)
- Case study #2: production vs. reliability (23:40)
- Case study #3: oversized assets (27:00)
- Final lessons for compressor operators and maintenance teams (30:50)
Take the Next Step in Compressor Fleet Management
At Detechtion, we help oil and gas operators take the next step from compressor data to measurable operational improvement. Through our Compression Optimization Suite of solutions, teams can identify opportunities, evaluate operating changes, monitor compressor performance, and make more informed decisions for a single unit or across the full fleet.
For a broader look at how operators can move from reactive decisions to proactive compressor fleet management, read Chapter 6 of our Complete Guide to Compressor Fleet Management.
