Month: February 2020

2016 – Bracing Installation

Summary:
Diver installation of 3 x cross bracings on tripod jacket in Gulf of Thailand

Client:
Undisclosed

Project:
Cross Bracing Installation

Location:
Thailand

Main Assets Deployed:
Modular AIR Dive System “AS-02” with Double LARS and supporting equipment

Scope of Work
Installation by divers of three (3) pre-fabricated cross bracings to strengthen a tripod jacket. The modular AIR dive system was mobilized to client’s accommodation barge together with a 9-man dive team. Beacon Offshore provided quality control of bracing construction together with specialized rigging and rigging procedures. The bracings were installed on time and within budget.

 

2018 – Anode Installation

Summary:
Retrofit installation of anodes on platform and 200 km pipeline in Gulf of Thailand

Client:
EMAS

Project:
2018 Anode Retrofit Program.

Location:
Erawan Field to Khanom Landfall, Thailand

Main Assets Deployed:
OSV “Crest Hydra” – Triton XLR Work Class ROV System

Scope of Work
Installation of retro-fit anode sleds onto Riser Platform and associated subsea natural gas pipeline. Beacon Offshore provided DPII vessel and ROV support for the installation of anodes on the platform and on approx. 200km of pipeline. The design, manufacture and delivery of the anode material and clamping system were provided by other contractors, as were the survey positioning services.

 

2020 – Chevron Platform and Pipeline IRM Program

Summary:
Chevron 2020 Inspection, Repair & Maintenance program for field installations in Gulf of Thailand

Client:
Chevron

Project:
2020 Platform and Pipeline IRM Program

Location:
Multiple Fields, Thailand

Main Assets Deployed:
OSV “Beacon Altair” – Triton XLR Work Class ROV – SeaEye Cougar Light Work Class ROV

Scope of Work
Full scope IRM program on multiple pipelines, platforms and wellheads including general visual inspection (GVI), detailed visual inspection (DVI), flooded member detection (FMD), anode survey, CP measurement, marine growth survey, debris removal, subsea valve operations, high pressure water jet cleaning and gas collection.

 

2017 – PTTEP ACFM Inspection Program

Summary:
Underwater node weld inspection campaign for GBN Jacket Lift Extension

Client:
PTTEP

Project:
ACFM Node Weld Inspection – GBN Jacket Life Extension

Location:
Greater Bongkot North Field, Thailand

Main Assets Deployed:
OSV “Endeavour” – Daughter Craft “Beacon 2” – Merlin 2000 Work Class ROV

Scope of Work
To conduct underwater node weld inspection campaign to verify weld integrity and re-baseline the platform fatigue life. The general scope included surface preparation and underwater inspection by CVI, ACFM and MPI techniques for 54 nodes on 11 jacket structures. Due to restricted access between jacket structures of the central complex, the AIR diving campaign was conducted mostly from the Daughter Craft “Beacon 2” while the ROV scope was carried out simultaneously from the OSV “Endeavour”

 

2019 – Casing Guide Removal

Summary:
Cut out by diamond wire cutter and removal by WROV of redundant casing guide frame

Client:
Chevron

Project:
2019 Platform Casing Guide Frame Removal

Location:
Platong Field, Thailand

Main Assets Deployed:
OSV “Crest Hydra” – Triton XLR Work Class ROV System

Scope of Work
Scope of work comprised engineering analysis including development of rigging plan and risk assessment to extract and remove a platform casing guide frame. Following an as-found ROV survey, to verify the guide frame position within the platform, the subsea rigging was attached and the guide frame cut free with ROV diamond wire cutter and safely removed from the structure.
The guide frame was subsequently recovered by crane to the OSV “Crest Hydra”.

 

2018 – MOPU UWILD

Summary:
SAT and AIR diving project with WROV support for UWILD of MOPU in Malaysia

Client:
Undisclosed

Project:
MOPU Underwater Inspection in Lieu of Drydocking

Location:
Malaysia

Main Assets Deployed:
DSV “Nusantara” – SMD Quasar Work Class ROV – Daughter Craft “Beacon 2”

Scope of Work
UWILD as part of Special Survey to Class ABS requirements including: General Visual Inspection (GVI) of legs and Base Mat by divers and ROV – Inspection of top plating of Base Mat and scour survey at base of the mat – Selective CP and UT measurements – ACFM, CVI and MPI of welds including the main leg-to-Mat connections, approx. 45 m in total.
The project involved simultaneous SAT diving on the Base Mat and lower part of the MOPU legs from the DSV “Nusantara” while AIR diving on the upper portions of the MOPU legs was carried out from the Daughter Craft “Beacon 2”.
Due to the effective SIMOPS the project was completed ahead of time within a tight 14 day window.

 

2019 – Nexans Prelay Route Survey

Client:
Nexans

Project:
Mindanao Visayas Interconnector Project

Location:
Philippines

Main Assets Deployed:
OSV “Beacon Altair” – Triton XLR Work Class ROV

 

Scope of Work

180km prelay survey for 2 x 350kV HVDC power cables between Dipolog on Mindanao and Santander on Cebu, Philippines.

The route was topographically challenging with a wide variation in depths and high slope angles in several locations. The maximum depth was around 650m.

Purpose of survey was to plan and optimize the cable route and acquire high resolution bathymetry and side scan sonar images along the route. Video images of the route centerline were also recorded.

Sub-bottom profiling was carried out to assess slope stability and to give information on burial of the cable to 2m below seabed

The results were reported by charting, written accounts and explanations, GIS, processed and raw data. Initial processing onboard was efficient enough to allow routing decisions to be taken before leaving the immediate area.