A break-through after endless retreatments

Challenge

Our client had experienced a significant drop in total fluid production in these wells over the last several months. Conventional treatments, such as acid stimulation, had yielded short term results and required frequent re-treatments.

To solve near wellbore issues In the reservoir, an alternative remediation technique that was efficient and cost-effective was required.

• Depth: 7,000 ft. (2,134 m)
• Formation: Dolomitized carbonate

Solution

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

• In conjunction with a workover, the tubing and bottom hole assembly were pulled and the BLUESPARK® tool was deployed.
• Two separate candidate wells were treated (December 2013 and March 2014) with the BLUESPARK®. In both cases, 80 ft. (24m) of interval were treated in less than 24 hours.
• The client ran production tubing and pump assembly into the wellbore, and began monitoring the production pressures and fluid levels.
• An immediate increase in production was observed.

Outcome

Increase oil and gas production in both wells:

• The December 2013 well showed an average increase of 100% (17 BOPD) in oil production and 127% (19 MCF/d) in gas production over 5 months since treatment.
• The March 2014 well showed a 210% (21 BOPD) increase in oil production, and 100% increase (5 MCF/d) in gas production over the 2 months since treatment.
• The client is evaluating other candidates wells for electro-hydraulic stimulation.