Remedial Offshore was formed in 2006 to satisfy demand for heavy well intervention and workovers in offshore fields. The Company's founders saw the opportunity to scale-up proven, available technology and create a new type of stable, robust, mobile work platform designed, engineered and purpose-built to support the full range of remedial well services offshore.
They envisioned large, self-propelled jack-ups with high-capacity cranes and a workover rig that could be lifted onto a well platform (with its load partly supported by the platform) or deployed onto cantilever beams (with no load transmitted to the well structure).
Remedial Offshore "leap-frogs" current lift-boat technology
In the Gulf of Mexico, North Sea and elsewhere, smaller "lift-boats" commonly serve as mobile work platforms. Lift-boats (essentially powered barges with legs) provide elevated work areas for well service crews. Raising the hull out of the water minimizes effects from waves or tidal movements on rigging for well intervention operations, such as slick-line or electric-line services.
Over time, lift-boats grew to meet new requirements from well service technologies; as demand for deck space and load capacity increased, the industry built larger lift-boats. A modern lift-boat resembles its forerunners (minimal quarters, open deck, no workover rig), but faces engineering limits for deck load without dramatically increasing its hull size.
Employing a jack-up drilling rig design (not a barge) as the hull for its self-propelled ESV™ units, the Company optimizes its unique, purpose-built vessels for light and heavy well intervention, as well as offshore installation and construction support.
The ESV approach combines the strength and durability of a jack-up rig with the mobility of an ocean-going vessel. Its high-capacity crane means each ESV unit is larger and more capable than any lift-boat in the world.
The traditional lift-boat remains a valid concept, but cannot effectively scale-up to satisfy the requirements in many operating environments. Advanced well service technologies involve large, heavy equipment packages, with increased demand for deck space, deck load, accommodations, fluids storage, crane capacities and more -- exactly the things an ESV unit can provide. In addition, ESV units are built to withstand storm-force winds and waves in shallow-water fields worldwide.
Remedial Offshore's ESV units meet complex needs
Couple environmental factors with logistical challenges common in remote offshore locations and one defines the engineering design requirements for a new type of offshore support vessel:
- Large mobile work platform;
- Environmental performance of "300 class" jack-up drilling rig;
- High-endurance vessels capable of extended operations; and
- Operational flexibility to perform varied well intervention/remediation tasks.
Uniquely capable, combining time-tested technologies within a unified, mobile package, our ESV™ units provide Value through Efficiency™.