Gas Well Optimization
How our foamers provide gas well optimization
When a gas well velocity drops below the critical velocity to lift produced fluids out of the wellbore a loading effect occurs which restricts gas production. Once the gas well has built up enough gas pressure to overcome the hydrostatic pressure of the fluid then the well will “unload” and resume normal gas production until the cycle repeats.
To alleviate this problem chemical foamers have been used to reduce surface tension of the load fluid and allow the fluid to be lifted to the surface so gas wells produce more consistently providing gas well optimization.
- Williams pump with variable rate between 0.25
and 8.0 liters per day - PSV on chemical pump [set at 1500psi]
- 245 liter tank with secondary containment
- 50 feet of supply and discharge line
- 6500 psi discharge line rating w/ check valve
- 2250 psi supply gas pressure rating
Recent Gas Well Optimization Case Histories
Shell Canada 9-23-55-24W5
Prochem’s foamers improved Shell’s gas well optimization. This site used 4 liters per day of foamer at a cost of approximately $5/day totaling $20/day. This increased condensate production $189/day and gas production $1024/day.
- Originally the well was free flowing, 14.4 E3m3 with intermittent liquids unloading.
- ProChem gathered a water sample from this well and tested our lineup of foamers.
- Foamer injection started at 10 liters/day and was optimized to 4 liters/day.
- Foamer was started and gas production from 9-23-55-24W5 jumped from 14.4 E3m3 to 21.6 E3m3.
- Condensate production from this location was intermittently unloading 0.1m3. After foamer was started the well has seen a consistent unloading of 0.1 – 0.3m3 of condensate per day.
Shell Canada 11-27-57-25W5
Prochem’s foamers improved Shell’s gas well optimization. This site used 3 liters per day of foamer at a cost of approximately $5/day totaling $15/day. This increased condensate production $315/day and gas production $980/day.
- Originally the well was free flowing, 14.5 E3m3 with condensate production from averaging 0.3 m3per day.
- ProChem gathered a water sample from this well and tested our lineup of foamers.
- Foamer injection started at 12 liters/day and was optimized to 3 liter/day.
- Foamer was started and gas production from 11-27-57-25W5 jumped from 14.5 E3m3 to 21.4 E3m3.
- Condensate production spiked at this location after the foamer was started and averages 0.7 – 1.2 m3 per day.
