Conventional intervention methods achieved limited and short-lived production increases on these 8 wells. BlueSpark delivered +90% for the first 3 months and a 12-month average of +60%.
Mixed results from acid, lasting results with BlueSpark
Conventional intervention methods achieved limited and short-lived production increases on these 8 wells. BlueSpark delivered +90% for the first 3 months and a 12-month average of +60%.
Challenge
Conventional treatments, such as acid stimulation, had yielded mixed or short-term results over the past couple of treatment candidates. Client was willing to evaluate a novel technology to solve near wellbore formation damage issues in the reservoir, as an alternative remediation technique.
Well Conditions
- Depth: 820 – 950 ft (250 – 290 m)
- Temperature: 212 °F (100 °C)
Solution
Improve connectivity to the reservoir in gravel pack applications, using electro-
hydraulic stimulation technology.
- Applied BLUESPARK® technology in select trial wells, in thermal heavy oil pool.
- Treated gravel pack interval with pulsing technology at 5 min/ft (16 min/m).
- Evaluated post-stimulation production rates, reservoir temperature and bottom hole pressures, to compare to pre- treatment values.
- Customer elected to preform BLUESPARK® trial in 8 wells.
Outcome
The customer observed the following:
- Oil production in 3 trial wells was over 4x greater after stimulation (3-month comparison).
- An increase in both oil cut and well temperatures was observed in the majority of the trial wells.
- Additionally, the client observed that electro-hydraulic stimulation provided greater longevity and higher production rates, when compared to conventional acid stimulation results.
- Oil production for the 8 trial wells increased from 87 to 165 b/d (90%) for the first 3-months; the 12-month average was 139 b/d (60% increase)