Offshore staff
HEMPSTEAD, Texas – Logan Industries has completed manufacturing, assembly, and installation of all 64 filter carts as part of its continual based monitoring program for a drilling contractor’s subsea tensioner equipment.
Logan developed the program in co-operation with the undisclosed customer to enable full uptime for its wireline tensioner units (WLTs) on four of its drillships offshore Africa. Each vessel has 16 WLTs onboard. WLTs help hold a subsea riser up in the water column and enable drilling, completion, and intervention work.
A key focus of this program involves preventative maintenance of actively filtering the fluids running through the WLT. The company developed a filter cart in order to keep WLT fluid cleaner for longer. This enables longer service life between maintenance overhauls of the units.
The company’s filter cart continuously filters and polishes the WLT fluid, 24 hours a day, while it is still in service, monitoring the health of the fluid. This type of filtering is said to be especially difficult because each side of the fluid path for the pump moving the fluid is pressurized. This introduced design challenges and required lengthy testing and tuning to ensure adequate performance ahead of field deployment, the company said.
Dean Carey, technical director, Logan Industries, said: “The continual based monitoring program is a preventative health maintenance mindset that reduces overall life of system costs and provides greater operating efficiencies for drilling contractors for the long term. For Logan, proactively preventing subsea equipment failures and keeping essential equipment maintained and ready for service is our specialty.”
The program began in 2Q 2019, followed by six months of testing and tuning the prototype. The first set of 16 assembled and completed units was delivered in March 2021.
06/30/2021
