A scaled SCSSSV in the Danish North Sea had failed repeatedly, and camera images showed a possibly damaged flow tube. BLUESPARK cleaned a 13 ft interval in six hours; the valve passed its inflow test and no insert valve was needed.
SSSV cleaned, insert valve avoided
A scaled SCSSSV in the Danish North Sea had failed repeatedly, and camera images showed a possibly damaged flow tube. BLUESPARK cleaned a 13 ft interval in six hours; the valve passed its inflow test and no insert valve was needed.
Key results
- 6 hours treatment time
- Visual confirmation of scale removal
- In-flow test performed & passed
- Safe Treatment The Blue Spark tool cleans without damaging. Damage can be seen on the SV from previous intervention types
Challenge
The customers’ SCSSSV had failed numerous times in recent years due to scale build-up. Camera images showed scale buildup and a possibly damaged flow tube. The customer wished to clean the SCSSSV to be able to place an insert valve. Due to numerous successes with BLUESPARK® on past wells, the customer rush mobilized Blue Spark Energy to treat the SCSSSV.
- Depth: 1,800 ft (550 m)
- Temperature: 35 °C (95 °F)
- Treatment in 23° deviation section
Solution
Remove scale from the SCSSSV using electro-hydraulic pulsing technology
- The BLUESPARK® 275 tool with a Fluid Hold-Up Tool was run on third-party E-Line to the treatment interval of the well
- Two pulsing passes were made over a 13 ft (4.0 m) interval in a treatment time of 6 hours
- An inflow test of the SCSSSV was performed, which passed
- The flow tube appeared to be functional, resulting in no requirement to set an insert valve
Outcome
- The SCSSSV scale was removed by BLUESPARK®, resulting in a successful inflow test and no need for an insert valve