CHALLENGE

The primary oil producing zone of the well of a major operator was converted to water injection (dump flood) but the injection rate had fallen over time to zero. It was thought that fines were likely causing Skin damage. A re-perf was done 2 years earlier but did not result in any improvement. In addition, aquifer zones in the same wellbore were now producing at less than 20% of their original water rate.

SOLUTION

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

  • The slimhole 212 BLUESPARK® tool was deployed on 3rd party wireline through tubing into the wellbore.

  • BLUESPARK® stimulation was carried out, treating 17 m (56 ft) of perforations.

  • The well was put back on injection.

  • An MPLT was logged to confirm the flow rates.

Blue Spark Energy - case study BLUESPARK® Treats Injector Malaysia

CONDITIONS

  • Depth: 1,500 m (4,900 ft)

  • Temperature: 90 °C (194 °F)

OUTCOME

  • BLUESPARK® stimulation was successful in treating the aquifer zones, returning the water production to over 90% of its original value.

  • BLUESPARK® stimulation was also successful in treating the injection zone, which at 40° deviation could not effectively be treated by re-perforating due to the proximity to the end of the tubing.

  • The injection zone, which had never taken fluid, was now taking fluid at 40% of it’s original production value.


Blue Spark Energy is paving the way towards a sustainable, dynamic oil & gas industry. As leaders in high-pulse powered wellbore remediations, we provide a revolutionary technology that is a safe, cost-effective, and efficient solution for forward-thinking energy providers.

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NSEA-SR-145 (North Sea)

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APAC-PW-143 (Asia Pacific)