Oil production rates had decreased by over 60% in only 8 months due to carbonate scaling. We cleared it, more than doubling production.
Oil production up 163%, still 90% higher 1 year post-treatment
Oil production rates had decreased by over 60% in only 8 months due to carbonate scaling. We cleared it, more than doubling production.
Challenge
Root cause analysis, and previous data collected through solids analysis and visual characterization, concluded that a carbonate type scale was forming. Since this was a low producer, a cost-effective solution, in conjunction with a workover, was required to remediate the well. Identifying and utilizing an alternative cost-effective technology that deals directly with suspected blocking mechanism (scale) in the wellbore and near-well reservoir.
Well Conditions
- Gething sandstone
- Depth: 1500 m (4900 ft)
- Temperature: 35 °C (95 °F)
Solution
Electro-hydraulic stimulation in cased hole to improve well inflow.
- In conjunction with a workover on the well to pull tubing and bottom hole pump assembly, BLUESPARK® was deployed.
- Completed Blue Spark BLUESPARK® Treatment over the 3 m (10 ft.) perforated zone of interest, the Gething Formation (sandstone).
- Ran production tubing and pump assembly in wellbore and began monitoring production rates, pressure and fluid levels.
- Immediate increase in production was observed.
Outcome
- Oil production more than doubled after the remediation
- Client data shows an average increase in oil production of more than 10 b/d over a 3-month period (163% increase)
- The data for the 1-year period post-stimulation showed a 90% increase in average production to 12.6 b/d