History

Pioneering Riserless Intervention

Seawell, originally Stena Seawell, completed the first riserless subsea well intervention campaign in the North Sea for BP, setting a new standard for subsea light well intervention.

First Riserless Christmas Tree Changes

Helix performed the first riserless Christmas tree replacement for Hess, demonstrating advanced subsea intervention capabilities.

Uncle John Joins the Fleet

The Uncle John, the world’s first purpose-built semisubmersible dive support vessel, joined the Helix fleet, enhancing our deepwater intervention capabilities.

Uncle John’s First Well Intervention

Uncle John completed its inaugural well intervention project, performing wireline intervention from a dynamically positioned non-drilling vessel for the first time in the Gulf of Mexico.

First Rig-Alternative High-Pressure Riser Campaign

Helix conducted the first high-pressure riser intervention campaign as a rig alternative for Shell, optimizing efficiency in the Gulf of Mexico.

First Coiled Tubing Campaign from a Monohull

Helix executed the first coiled tubing intervention campaign from a monohull vessel for Shell, advancing operational flexibility.

First Riserless Intervention in Shallow Water

Helix completed the first riserless intervention in 37-meter shallow water in the Southern North Sea for Arco, showcasing versatility in challenging environments.

First Riserless Intervention Through Horizontal Christmas Trees

Helix conducted the first riserless intervention campaign through horizontal Christmas trees for Amoco, a milestone in subsea technology.

First Rig-Alternative Vessel for Well Abandonment

Helix pioneered the use of a rig-alternative vessel for well abandonment for EEX, reducing costs and operational complexity.

First Riserless Abandonment Campaign in Norway

Helix completed the first riserless well abandonment campaign in Norway for Statoil, expanding our global reach.

First Multi-Operator Riserless Abandonment Campaign

Helix executed a riserless abandonment campaign for multiple operators, including Enterprise, Marathon, Talisman, and BP, optimizing collaboration and efficiency.

First Coiled Tubing and Well Test Flaring Campaign

Helix conducted the first coiled tubing and well test flaring campaign from a monohull vessel for Shell, enhancing well enhancement techniques.

Q4000 Joins the Fleet

The Q4000, the world’s first deep-sea intervention and construction vessel, joined the Helix fleet, capable of operating in water depths up to 10,000 feet, surpassing the capabilities of Uncle John.

First Well Test Package for Hydrate Dissolution

Helix utilized a well test package to dissolve hydrates and flare off pipeline inventory, streamlining subsea operations.

First Diverless Riserless Intervention in Norway

Helix completed the first diverless riserless intervention campaign in Norway for Statoil, advancing safety and efficiency.

Deepwater High-Pressure Riser Campaign

Helix conducted a high-pressure riser intervention campaign in 3,003-foot water depth for Shell, setting a new benchmark for deepwater operations.

First Well Intervention and Abandonment Combo Campaign

Helix performed the first combined well intervention and abandonment campaign using a rig-alternative vessel for Shell, optimizing project execution.

First Well Intervention and Well Test Combo Campaign

Helix completed a combined well intervention and well test campaign using a rig-alternative vessel for Kerr McGee, enhancing operational versatility.

New Water Depth Record for High-Pressure Riser Campaign

Helix set a water depth record of 5,300 feet for a high-pressure riser intervention campaign for Shell, pushing the boundaries of deepwater technology.

Listed on the New York Stock Exchange

Helix celebrated becoming a publicly traded company on the New York Stock Exchange.

First Free-Standing Intervention Top Tension Installation

Helix installed the first free-standing intervention top tension system for RPSEA, advancing subsea intervention techniques.

Well Enhancer Launched

Helix launched the state-of-the-art Well Enhancer, a light well intervention vessel, in the North Sea, redefining subsea intervention standards.

First Top Hole Drilling with Rig-Alternative Vessel

Helix performed top hole drilling using a rig-alternative vessel for Chevron, expanding the scope of intervention vessels.

First Riserless Intervention with 7 3/8” Well Access Package

Helix completed a riserless intervention campaign using a 7 3/8” well access package for Nexen, enhancing access to complex wells.

First Well Sidetrack Preparation

Helix prepared a well for sidetracking using a rig-alternative vessel for Shell, optimizing well redevelopment.

First Thru-Tubing Gravel Pack Recompletion

Helix performed the first thru-tubing gravel pack recompletion using a rig-alternative vessel for Marubeni, advancing well completion techniques.

Macondo Spill Response

The Q4000 played a critical role in the Macondo well “static kill” for BP, pumping 32,000 barrels of mud and cement to seal the leak. Helix’s Express and Helix Producer I also supported spill response and containment.

First Pipeline Clean-Out from a Monohull Vessel

Helix’s Seawell and Well Enhancer, the only industry-qualified vessels, performed a pipeline clean-out for Shell to meet legislative requirements.

First Coiled Tubing for Well Enhancement

Helix used coiled tubing from a monohull vessel for well enhancement for Hess, improving production efficiency.

First Dedicated Emergency Response Vessel

Helix introduced the Helix Fast Response System, the first dedicated emergency response vessel for well flow handling, processing, and offloading.

First Coiled Tubing Drilling for Well Abandonment

Helix used coiled tubing drilling to remove a top plug during well abandonment for Noble Energy, streamlining decommissioning.

First Riserless Intervention in West Africa

Helix completed the first riserless intervention campaign in West Africa for ExxonMobil, expanding our global footprint.

First High-Pressure Riser Coiled Tubing Gravel Pack

Helix performed the first high-pressure riser-based coiled tubing gravel pack operation using a rig-alternative vessel for Marubeni.

Skandi Constructor Joins the Fleet

The Skandi Constructor, a versatile subsea support vessel, joined the Helix fleet, enhancing our operational capabilities.

Helix 534 Joins the Fleet

Helix acquired and converted the drillship Discoverer 534 into the Helix 534, a 534-foot well intervention vessel, expanding our intervention fleet.

First Deepwater Riserless Intervention in the Region

Helix completed a riserless intervention campaign in 752-meter water depth for ExxonMobil, marking a regional milestone.

First Riserless Intervention and Stimulation Combo

Helix performed a riserless intervention and stimulation campaign at a 50-barrels-per-minute rate for BP, optimizing well performance.

Q5000 Joins the Fleet

The Q5000, a state-of-the-art well intervention semisubmersible, joined the Helix fleet, enhancing deepwater intervention capabilities.

Seawell Relaunched After Upgrade

The Seawell was relaunched following a $75 million upgrade, enhancing its capabilities for well intervention and decommissioning.

Siem Helix 1 Joins the Fleet

The Siem Helix 1, a purpose-built well intervention vessel, joined the Helix fleet, strengthening our global intervention services

Siem Helix 2 Joins the Fleet

The Siem Helix 2, a state-of-the-art well intervention vessel, joined the Helix fleet, expanding our operational capacity.

Newbuild Q7000 Delivered

The Q7000, a newbuild well intervention semisubmersible, was delivered to Helix, designed for advanced deepwater operations.

Acquisition of Subsea Technologies Group

Helix acquired a majority stake in Subsea Technologies Group Limited, an Aberdeen-based subsea engineering firm specializing in pressure control equipment.

Q7000’s First Project Offshore Nigeria

The Q7000 completed its first well intervention project offshore Nigeria for ExxonMobil, marking a successful debut.

World Record for Offshore Snubbing

Helix and SBS Energy set a world record for offshore snubbing, completing a 28,789-foot flowline cleanout on the Q4000 at Ozona Garden Banks 515 in the U.S. Gulf of Mexico.

15 Years on the NYSE

Helix celebrated 15 years as a publicly traded company on the New York Stock Exchange, reflecting our growth and stability.

Partnership with Trendsetter Engineering

Helix partnered with Trendsetter Engineering to provide global integrated hydraulic intervention services, enhancing our service offerings.

Siem Helix 1 Multi-Year Contract

The Siem Helix 1 secured a multi-year contract for well abandonment with Trident, reinforcing our decommissioning expertise.

Siem Helix 2 Contract Extension

The Siem Helix 2 was awarded a multi-year well services extension with Petrobras, expanding our operations in Brazil.

Q5000 Multi-Year Contract

The Q5000 secured a multi-year contract with Shell in the U.S. Gulf of Mexico, solidifying our partnership.

Q7000 Well Abandonment Campaign

The Q7000 was awarded a well abandonment campaign with multiple clients offshore New Zealand and Australia, showcasing global expertise.

Q4000 Well Intervention in Nigeria

The Q4000 secured a six-month well intervention contract offshore Nigeria with Esso, reinforcing our deepwater expertise.

Siem Helix 1 Contract Extension

The Siem Helix 1 secured a multi-year contract extension with Petrobras, continuing our strong presence in Brazil.

Q7000 Abandonment Campaign in Brazil

The Q7000 was awarded a well abandonment campaign in Brazil with Shell Brazil, expanding our decommissioning services.

Multi-Year Contract Extension with Shell

Helix secured a multi-year contract extension with Shell in the U.S. Gulf of Mexico, reinforcing our long-term partnership.