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Oilgear’s Fresh Take on Subsea Hydraulic Control

08/02/2017 16:18:32
 
 
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ImagesClick Image for 300dpi jpg fileOilgear’s Fresh Take on Subsea Hydraulic ControlOilgear’s Fresh Take on Subsea Hydraulic ControlOilgear’s Fresh Take on Subsea Hydraulic ControlOilgear’s Fresh Take on Subsea Hydraulic Control

During the 1970’s, an approach was established for controlling subsea wellhead blow-out preventers (BOPs) and production systems. This approach involved using hydraulic fluid power as a means for shifting valves, rams, and actuators that are located as far as two miles below a platform or vessel. To accomplish this end, a hydraulic toolkit was established, consisting of purpose-built valves, regulators, pumps, and accumulators. For the most part, the hydraulic components utilized today look nearly identical to those developed in the 1970’s.

Regulatory agency requirements have increased significantly over the last decade, driving up the cost of drilling and production. As operators analyze their expenditures, the reliability of the subsea hydraulic controls has been identified as a major cost-driver. In the best case scenario, the failure of a control valve on a subsea BOP will cost the operators hundreds-of-thousands of dollars as they pull the stack and fix the issue. In the worst of scenarios, a control valve failure could be catastrophic and cause the BOP to fail during a blow-out event.

Starting in 2011, Oilgear trained its eye on increasing the reliability of subsea hydraulic controls. At that time, Oilgear, a century-old hydraulic company, had no experience in subsea equipment, but had a tremendous amount of offshore experience by way of its Olmsted valve product line – Olmsted valves are installed on riser tensioning systems and drill string compensators and provide the primary means of hydraulic control for these systems. With its world-class product development capability, Oilgear’s Olmsted group set out to radically improve the products that are utilized in subsea hydraulic control.

Oilgear’s variable-displacement piston pumps are a cost-effective means of pumping environmentally-friendly fluid at high pressure. Though only recently introduced to the subsea world, this proven pump line was designed for high-water content fluids, such as Erifon™, Houghto-Safe™, Stack Magic™, Oceanic™, and Pelagic™. The Oilgear variable pumps are made of carbon steel, allowing them to replace much more expensive alternatives, like all-stainless steel pumps with lubrication systems, or triplex pumps paired with variable drives. Oilgear pumps are now running on many subsea hydraulic power units (HPUs) and topside offshore HPUs.

The Oilgear hydraulic pressure regulator takes a clean-slate approach to solving the problem of pressure regulation. The pressure regulator is generally considered the most problematic control component subsea, so Oilgear focused on solving the complaints of the operators. Utilizing computational fluid dynamics (CFD), multi-physics simulation and extensive testing, Oilgear has created a regulator that will not oscillate, provides excellent accuracy and has a broad range of adjustability. It’s available as manually-settable, pilot-operated, or electrically commandable.

Similar to the pressure regulator, the Oilgear subsea two-position three-way valve (also known as an SPM valve) looks nothing like the competition’s valve. During the development process, Oilgear fixated on robustness and the reduction of pressure spikes. While competitors typically rate their valves to three thousand cycles, Oilgear’s design is rated to thirty thousand cycles. Additionally, the Oilgear design is fully manifold-mountable, consumes thirty percent less space and will not get stuck mid-shift.

At its core, Oilgear is a product development company. When needs are identified in the subsea industry, Oilgear is eager to invent new products. Over the last few years, Oilgear has created custom products ranging from valve manifolds and intensifier pumps, to chemical injection pumps. Oilgear maintains its status in the market by staying ahead of the curve, investing in top talent, as well as cutting-edge analysis and testing capabilities.

The future of subsea innovation must be centered on reliability and cost-savings. This is where Oilgear has, and will continue, to direct its efforts in subsea research and development.

Image captions:

Photo 1: Oilgear maintains its status in the market by staying ahead of the curve, investing in top talent, as well as cutting-edge analysis and testing capabilities.
[Source: iStock Copyright Pixone 000058411954]

Photo 2: Oilgear’s variable-displacement piston pumps are a cost-effective means of pumping environmentally-friendly fluid at high pressure.

Photo 3: The Oilgear subsea two-position three-way valve (also known as an SPM valve) looks nothing like the competition’s valve.

Photo 4: The Oilgear hydraulic pressure regulator takes a clean-slate approach to solving the problem of pressure regulation.

About Oilgear.

Oilgear is a leading manufacturer and supplier of fluid power and hydraulic equipment, servicing the Metals, Oil & Gas and Marine sectors, including both civil and military applications. Its solutions include high pressure pumps, valves and systems technology; panel building and systems control solutions; and full aftermarket service packages for all hydraulic solutions. Its Leeds based facility boasts a modern production area, which specialises in high pressure components, as well as in-house test beds and an R&D division which is responsible for developing customised software packages designed to monitor and control the installed systems.

The image(s) distributed with this press release may only be used to accompany this copy, and are subject to copyright. Please contact DMA Europa if you wish to license the image for further use.

Editor Contact

DMA Europa Ltd. : David Bedford
Tel: +44 (0)1562 751436 Fax: +44 (0)1562 748315
Web: www.dmaeuropa.com
Email: infoallenquiries@dmaeuropa.com

Company Contact

Oilgear : Frank Carlin
Tel: 01133 947300 Fax: 01133 947301
Web: www.oilgear.com
Email: enquiries@oilgear.com

 
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