Acid treatments had failed to solve CaCO3 scaling of the perforated interval in this well. We delivered an instant uplift and cleared a path for subsequent matrix acidization.
2-hour treatment, 166% production increase
Acid treatments had failed to solve CaCO3 scaling of the perforated interval in this well. We delivered an instant uplift and cleared a path for subsequent matrix acidization.
Challenge
This build-up of scale was confirmed to be Calcium Carbonate. Previous acid treatments had little effect in removing the scale deposition to improve production.
Well Conditions
- Depth: 1900m (6200ft)
- Temp: 65 °C (150 °F)
- Formation: Montney Shale
Solution
Improve connectivity to the reservoir using electro-hydraulic stimulation technology.
- BLUESPARK® technology was run on third-party wireline
- A 2m (7ft) interval was stimulated with a total operating time of just over 2 hours.
- The well was placed back on production and an immediate sustained increase in production was observed
- After 45 days of sustained production the customer successfully acidized the well with outstanding results
Outcome
- Client data from the BLUESPARK® treated well showed an increase from 2.2 bbl/day (0.35m3/d) of oil to 5.9bbl/day (0.93 m3/d) in the first 45 days post stimulation, a 166% increase
- After complementary matrix acidizing, the oil rate increased further to an average of 13.1 bbl/day (2.09 m3/d) for the next 53 days, a 6x increase