INDUSTRY NEWS Horizon Geosciences – New State of the Art
Geotechnical Investigation Spread Horizon Geosciences Limited are pleased to announce the recent mobilisation of an additional offshore geotechnical site investigation spread.
Horizon’s K3 geotechnical drilling system has been designed based upon over 15 years of conducting offshore geotechnical investigations and is the fourth offshore heave compensated rig to be brought into service in that time. It incorporates a number of state of the art features such as mechanical drill pipe handling which removes all manual handling requirements from running and pulling drill string and electronic recording of drilling parameters to provide additional ground data and operational feedback during drilling. The rig has the ability to switch to a nested coring system whereby 100mm Geobor S triple tube
coring is conducted through a riser casing to provide larger diameter and higher quality core samples in a wide range of soil and rock conditions. It also has the ability to deploy conventional downhole CPT, sampling and wireline coring, plus seismic CPT, geophysical borehole logging, pressure meter testing and other downhole tools.
The rig can be used for deep boreholes as well as to deploy Horizon’s 200kN seabed CPT unit for acquisition of deep push cone penetration data also in combination with seismic CPT as required. Boreholes can be conducted in up to 600m water depth as standard and deep push CPT in up to 100m water depth. A fully equipped soil laboratory capable of undertaking a wide range of testing offshore completes the spread, making it a very versatile system for all ground investigation applications.
The rig has been mobilised to DP2 vessel Kommandor Susan owned and operated by our long term partner Hays Ships. It is currently performing its first project offshore Poland.
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www.horizon-geosciences.com
BMT Delivers Mooring Line Monitoring
System for Helang FPSO BMT has delivered a Mooring Line Monitoring (MLM) system to London Marine Consultants (LMC) for the Helang FPSO project in Malaysia. The MLM technology that has been developed by BMT has been supplied to LMC to monitor mooring pull-in and inclination of the chain stoppers during the FPSO hook-up installation phases and long-term operation of its internal turret mooring system (TMS) on the Helang FPSO.
“We are delighted to work with LMC on this project. The Helang’s internal turret is integrated into the FPSO’s hull enabling the FPSO to passively weathervane while permanently moored to the seafloor, so our inclination data is essential to
indicate the leaving angles for each of the mooring line chain stoppers. Our MLM system is one of many advanced asset monitoring solutions that BMT has supplied to the offshore oil and gas industry,” said Dale Hastings-Payne, BMT’s Director of Business Development, Asia.
The new MLM system, allows visual monitoring of the chain stopper inclination to measure chains being tensioned during the FPSO hook-up installation phase and long-term operation of the TMS. In this case, there is a total of 7 chain stoppers which require monitoring during this critical phase, the MLM will indicate the leaving angles for each of the mooring line chain stoppers, it includes 7 subsea inclinometer sensors that transfer data which can be accessed on a local tablet readout and a ICSS (integrated control and safety system) at the client’s FPSO control room.
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www.sosmagazine.biz December 2019
BMT has developed and delivered several successful turret moored systems for major deepwater field developments. Its suite of Mooring Line
Monitoring (MLM) systems provide valuable integrity data and important real-time monitoring of mooring systems to enhance operational safety.
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