60% production uplift in 20% of the treatment time

Challenge

A major operator in the Middle East was encountering skin damage in their wells. Normally, the customer would perform a matrix acidization treatment using coiled-tubing. The customer was looking for a cost effective alternative.

• Depth: 6,000 – 7,000 ft (1,800 – 2,100 m)
• Temperature: 220 – 240 °F (105 – 115 °C)

Solution

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

• The BLUESPARK® tool was run on third-party E-Line to the treatment interval of each of two wells.
• So as not to encourage more water production, only the upper 50 ft of the interval of Well #1 and only the upper 100 ft of the interval of Well #2 were treated in 12 hours and 18 hours of operational time respectively.
• The wells were put back on production and monitored.

Outcome

• The operation was completed in significantly less time (1 day vs 5 days per well), with less operational footprint and at a lower cost than a coiled-tubing acid job.
• The aggregate increase in oil production for the two wells was 60%.
• The water-cut of Well #1 was relatively unchanged and that of Well #2 decreased 14%.