Client: Geovenor Explora SpA.
Execution Date: February 2022 – July 2022.
Execution period: 6 months.

Description of work:

• Soundhole B1, collection tower
• Soundhole B5, extreme outfall zone.
• Soundhole B6, intermediate outfall zone.
• Borehole B4, intake excavation zone.
• Soundhole B2, intermediate intake zone.
• Soundhole B7, outfall excavation area.

Client: Arrigoni Engineering and Construction S.A.
Execution Date: January 2021 – December 2021.
Execution period: 1 year.

Description of work:

• Floor leveling around the Dolphin
• Concrete wall surface cleaning
• Repair nests and cracks with Hilti product
• Dowel installation, drilling and anchoring
• Installation of formwork, reinforcement, concreting
• Removal of moldings
• Demolition of foundation around piles.
• Installation of containers on piles to rebuild foundation
• Container concrete
• Final cleaning, demolition material removal and video
• Underwater rockcasting 50m.
• Underwater inspections with divers and robotic unit.
• Foundation cleansing
• Firehole
• Moulding
• Concrete
• Filling
• Background cleaning

Client: Belfi S.A.
Execution Date: September 2021.
Execution period: 1 month.

Description of work:

• Installation of studs in dead ends for adduction pipe.

Client: Belfi S.A
Execution Date: December 2020 – March 2021.
Execution period: 4 months.

Description of work:

• Belfi 2 platform assembly.
• Maritime transport of personnel.
• Underwater inspections with diver and robotic unit.
• Anchoring Movements.
• Installation of footings.

Client: SK Engineering and Construction.
Execution Date: January 2020 – December 2020.
Execution period: 1 year.

Description of work:

• Support for topographical tasks.
• Installation, repositioning and removal of anchoring systems (anchor, chains, cables and buoys) of the construction vessels with the help of balloons lift up.
• Underwater inspections and filming.
• Drilling, cutting and/or rock cutting.
• Support task for Jack Up Location.
• Support for the manipulation and installation of spies, cables and/or chains for the temporary positioning of naval artifacts.
• Underwater inspections with DGT3 Deep Trekker robotic unit.
• Cuts with thermal lance.
• Jack Up positioning.
• Diving with Nitrox gas mixture.

Client: Orizon S.A
Execution Date: August 2020 – December 2020.
Execution period: 5 months.

Description of work:

• Construction, launch and removal of water and oil lines (220 meters).
• Land welding of water and oil lines.
• CLIN support.
• Launch of water and oil lines.
• Positioning of lines on the seabed.
• Connection of lines on pontoon and manifold on land.

Client: Orizon S.A
Execution Date: December 2019 – July 2020.
Execution period: 8 months.

Description of work:

• Underwater inspection of the fleet.
• Underwater instrument cleaning.
• Underwater Technical Inspection service dock.
• Repair of piles and structure of the service dock.
• Construction and installation of 21 service dock braces.
• Flexible connection.
• Repair of service dock piles.
• Manufacturing and launching of new underwater pipelines.
• Background cleaning.

Client: SK Engineering and Construction.
Execution Date: August 2018 – August 2019.
Execution period: 1 year.

Description of work:

• Removal of 18” hydrocarbon pipeline, 420 meters long.
• Removal of 18” phenol pipe, 420 meters long.
• Removal of 6” 420 meter long oil pipeline.
• Removal of 3” water pipe and 420 meters in length.
• Disconnection of PLEM anchor with mechanical and underwater cutting tools (thermal lance and torch).
• PLEM extraction (4 tons).
• Sink of the new pipe, considering the position required by SKCOMSA.
• Installation of 4 slabs of 22 tons each, with the support of lifting balloons and boat.
• Installation of brake away valves.
• Flexible connection.
• Cathodic protection with HDPE blankets.
• Dredged.
• LAUNCH OF NEW OXIQUIM TERMINAL SUBMARINE LINES:
• Submarine and maritime support in the launch of all new submarine lines.
• Removal of flotation structure and auxiliary structure.
• Execution of inspection records of the state in which the lines were later upon launch.
• Delivery of audio-visual recording and reports of executed activities.
• Assembly and assembly of new PLEM.
• Removal of protections, transfer of tiles to the indicated place with safety equipment lifting and lifting maneuvers.

Client: Leco Engineering.
Execution Date: October 2018 – December 2018.
Execution period: 3 months.

Description of work:

• Inspection and technical evaluation of emissaries of the Essbio company: Tomé, Penco, Talcahuano - San Vicente, San Pedro, Coronel Norte, Coronel Sur, Lebu, and Lota.
• Inspection and technical evaluation of the Essval company outfall: Outfall Higuerillas submarine. (concón).
• Taking water samples in the Essbio burbot outfall sector.
• Repair Coronel Sur outfall section with stainless steel liners and removal of blind covers.
• Dredged.

Client: Corporal Froward.
Execution Date: July 2019.
Execution period: 1 month.

Description of work:

• Technical inspections of grating buoys and set of chains.
• Recovery and connection of grating buoy chain.

Client: Petrohué Investments.
Execution Date: November 2019 – December 2019.
Execution period: 2 months.

Description of work:

• Installation and removal of 22 struts at the Tubúl cove dock (Arauco).
• Installation of underwater epoxy putty.
• Cut with Torch.

Client: Onix Limitada.
Execution Date: June 2018 – July 2018.
Execution period: 2 months.

Description of work:

• Welding of 363 anodes weighing 220 kilos on piles and sheet piles of the pier Angamos, port Angamos de Mejillones.