APAC-PW-143 (Asia Pacific)

CHALLENGE

The well of a major operator was unable to produce from the long horizontal sand screen section due to a build-up of mud and barite. An attempt to stimulate production with coiled tubing was not successful and the horizontal section was left idle for over 5 years after it was completed.

SOLUTION

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

• Pre-job PLT was run and confirmed that the long horizontal section was filled with heavy well fluid (potentially drilling mud & barite settling).

• Stimulation carried out with slim-hole through-tubing BLUESPARK® tool over 3 runs via electric-wireline tractor.

• Only 10% of the total screen section was treated.

• Job completed in 3 days (versus up to 2 weeks for coiled tubing).

CONDITIONS

• Depth: 3,600 m MD (11,800 ft)

• Temperature: 107 °C (225 °F)

• Sour Conditions (>50% CO2; >10ppm H2S)

• Mud-filled HZ section (based on PLT)

OUTCOME

• BLUESPARK® stimulation was successful in treating the sand screen section, remediating the wellbore damage created during the drilling and completion of the well.

• BLUESPARK® stimulation was successful in spite of the heavy well fluid (1.6g/cc as measured by pre-job PLT) that was encountered.

• BLUESPARK® saved operator more than USD 1M versus another coiled tubing stimulation job.

• Production for the HZ well section went from approx. 300 bopd to 900 bopd (average during 3 weeks of post treatment testing).

---

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.