Gas production up 300%, still up 280% after a year

Key results

• Perforated Completion
• 8 hours total treatment time for 20ft interval
• 300% increase in gas production (3-month comparison)
• Sustained Results 280% increase in gas production 12-months post treatment

Challenge

The client’s well was fracked when it was completed, and flowed as high as 900 MCF/d of wet CBM gas. Within 2 years, the gas production rate had dropped by 75%. Several acid treatments were done over the next few years, usually resulting in an increase from 50% – 100% that would last 2 to 4 months. The client decided to try a BLUESPARK® treatment to see if better results could be obtained.

• Depth: 4,700 ft (1,430 m)
• Ferron coal-bearing sandstone

Solution

Improve connectivity to the reservoir by clearing out blockages using electro-hydraulic stimulation technology.

• The wellbore was cleaned by a bit & scraper run.
• The BLUESPARK® tool was run on third-party E-Line to the perforated intervals.
• Four perforated intervals of 20 ft total (6 m) were treated in less than 8 hours of total operating time with our wireline conveyed tool to improve flow through the formation rock.
• The well was put back on production and monitored.

Outcome

• The well saw an immediate increase in gas production, which continually rose over the next 3 months.
• The average gas production increased from 17 MCF/d to 71 MCF/d in a 3-month comparison, an increase of over 300%.
• The average gas production for the 12-months post-BLUESPARK® was 65 MCF/d, a 280% increase over the pre-BLUESPARK® rate.