A 9x increase in oil production

Challenge

Client had a well with blocked perforation tunnels from fines circulated into the perforations during a workover. Oil production was down significantly, and all other attempts to clean out the perforations had been ineffective.

The client was willing to try a new technology to clear the perforations to help improve fluid flow into the borehole.

• Depth: 1,200-2,300 ft (360-700 m)
• Rock type: diatomite

Solution

Unblock the perforations and improve connectivity to the reservoir by using electro-hydraulic stimulation technology.

• Unconsolidated sandstone reservoir was treated with BlueSpark® to improve production.
• No special tools or equipment were required on location to complete the remediation operation, other than third party E-Line.
• There were 14 individual perforation clusters treated with BlueSpark® in 8 hours of stimulation time.
• Production rates and fluid levels were both monitored for comparison to pre-treatment values.

Outcome

Unblock the perforations and improve connectivity to the reservoir by using electro-hydraulic stimulation technology.

• Perforations were cleared, allowing for increased fluid flow into the wellbore.
• Public data from the BlueSpark® treated well showed an average production increase from 0.8 b/d to 7.6 b/d (comparing 3 months pre-stimulation to 3 months post-stimulation), an 850% increase.
• The average rate for the first 6 months post-stimulation was 5.5 b/d, an increase of almost 600% versus the pre-stimulation rate.