NAM-SC-155 (USA geothermal)

CHALLENGE

The Town of Lakeview utilizes a geothermal district heating system to heat local schools, the community hospital, the emergency services station, and a dental clinic. The system experienced a severe decrease in heat generation due to a 45% decrease in flow rate from the production well due to  the build-up of goethite scale.

SOLUTION

Improve flow from the reservoir into the geothermal production well by removing goethite scale using electro-hydraulic pulsing technology.

• The BLUESPARK® 275 tool was run on a partner’s E-Line to the treatment interval

• Three intervals for a total of 105 ft (32 m) were selectively pulsed in a treatment time of 8 hours

• The well was placed back on-line immediately post the Blue Spark treatment

CONDITIONS

• Vertically drilled

• Open Hole completion

• Igneous reservoir (basalt, ash)

• Depth: 700 ft (213 m)

• Temperature:  88 °C (190 °F)

OUTCOME

• The well production rate was increased 134% to 206 gpm   (13.0 l/s), above the minimum required production rate of  130 gpm (8.2 l/s)

• Buildings that had to be shut down due to lack of heat are now operational

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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.