MEA-SR-156 (Qatar)
CHALLENGE
The oil producing wells in the client’s offshore field experience severe calcium carbonate (CaCO3) scaling during the production phase, affecting the functionality of the safety valves. The client’s usual method of treatment was spotting acid using coiled tubing. The client was looking for a solution that would reduce cost, footprint and time, while also providing a better success rate for the intervention. The customer's SSSV on this well failed to operate the flapper valve. Based on Blue Spark’s success in clearing scale across SSSVs in other regions, the customer decided to mobilize BLUESPARK®.
SOLUTION
The BLUESPARK® 275 tool was run on third-party E-Line to the treatment interval of the well
Three pulsing passes were made over a 20 ft interval in a treatment time of 5.3 hours
The functionality of the flapper valve was tested, with both the fully closed and fully open positions confirmed using a downhole camera.
CONDITIONS
Offshore conventional oil field
Vertical section of wellbore
Depth: 3000 ft (915 m)
Temperature: 42 °C (108 °F)
OUTCOME
BLUESPARK® successfully removed the scale from the SSSV, enabling the flapper valve to function properly and, more importantly, allowing the well to return to production.
A three-well campaign was subsequently planned.
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.