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Press Release

Consortium of GE and Norway's Halvorsen TEC Awarded the Seawater Sulfate Removal System for the Johan Castberg Project

April 25, 2017
  • Norway’s Aker Solutions and Statoil Select Consortium to Provide Seawater Sulfate Removal Unit (SRU)
  • SRU to Remove Sulfate from Injection Seawater to Protect Statoil’s Production Wells
  • Project Marks GE’s and Halvorsen TEC’s First Seawater Sulfate Removal System Order for Oil and Gas Sector to be Executed Primarily in Norway


TREVOSE, PA.-April 25, 2017-Marking a commercial milestone in process water treatment for the offshore oil and gas industry, Norwegian oil and gas company Statoil has selected a consortium led by GE Water & Process Technologies and Halvorsen TEC  to supply a complete seawater sulfate removal unit (SRU) to help protect production wells in Statoil’s Johan Castberg project in the Barents Sea, off Norway. The Johan Castberg (formerly Skrugard) project is situated about 100 kilometers north of the Snøhvit field in the Barents Sea.

Engineers from GE Water & Process Technologies and Halvorsen TEC are responsible for front-end engineering design (FEED) work in close cooperation with Aker Solutions and Statoil. Work is expected to go out in 2017, when the final investment decision for the project is planned to be carried out. This is GE’s first order of its seawater sulfate removal technology for the offshore oil and gas industry and the first time GE and Halvorsen TEC have been jointly awarded a complete SRU order. However, the two companies have a long-standing business relationship and have collaborated on numerous offshore oil and gas projects.

“We are pleased to collaborate with GE on the SRU project to help Statoil protect its wells in the Johan Castberg field,” said Svein Helge Pettersen, managing director of Halvorsen TEC, a subsidiary of Halvorsen Group AS. “We will be able to utilize our extensive engineering and fabrication capabilities in Norway to perform a majority of the SRU work and support the local economy. Components also will be sourced from Norway whenever possible.”

“As offshore exploration and production moves to deeper waters, operators must protect their assets to maximize their return on investment,” said Heiner Markhoff, president and CEO-GE Water & Process Technologies. “Sulfate removal is important to help ensure that production assets remain free of barium and strontium scale, which would precipitate if untreated seawater is injected. GE is teaming up with Halvorsen TEC to showcase how SRU technology can help Statoil and other oil and gas producers reduce their costs in increasingly tough-to-treat conditions.”

The SRU will allow Statoil to inject approximately 2,000 cubic meters per hour of seawater at less than 20 parts per million of sulfate content and less than 20 parts per billion of oxygen. The SRU’s injection capacity will be 1,188 cubic meters per hour at 6 bar. The GE-Halvorsen TEC SRU package will include:

  • GE’s seawater sulfate reducing nanofilitration membranes, which eliminate nearly all sulfates from the injection seawater, remove divalent ions from the seawater to prevent barium and calcium scale formation while leaving monovalent ions like sodium and chloride to pass through the membranes.
  • GE’s ZeeWeed* 700B horizontal ultrafiltration system, which has been widely adopted in the desalination industry and provides superior fine solids removal.
  • Deoxygenation membrane technology from 3M.
  • Full single-lift SRU

In addition to the core technologies, GE is providing the process guarantee for the entire unit as well as an OnBoard* service package with remote monitoring of the entire seawater injection plant. GE’s InSight* remote monitoring technology combines advanced data and analytics to help operators make better business decisions, eliminate unplanned downtime and reduce operating costs. The Johan Castberg floating production, storage and offloading unit’s SRU will benefit from GE’s analytics and process experts to ensure stable and optimal performance.

The FEED portion of the project will last six months. Equipment delivery is expected to take place mid-2019, while the first oil is expected to be produced in 2022. The project is divided into two phases: Aker will oversee FEED work during phase one, and the FPSO equipment will be fabricated and delivered during phase two.

About Halvorsen TEC

Halvorsen TEC was established in 2003 and is today a complete EPCIC provider of water treatment packages, processing plants, waste heat recovery systems, support systems for gas turbines and related engineering services to a wide range of international oil companies. Halvorsen TEC has headquarters in Oslo, with locations in Stavanger and in Langhus.

About Halvorsen Group

Halvorsen is a leader in the provision of offshore platform processing equipment and services to the international oil and gas industry. Companies within the Halvorsen Group specialize in pressure and temperature technology, water treatment systems, energy recovery (WHRU), gas turbine technology, power packages, electrical switchboard systems, energy-efficiency systems and engineering services. The company is a pre-qualified, multi-discipline provider of process equipment to major oil companies, upstream equipment businesses and EPCIC contractors on a global basis. Halvorsen employs approximately 500 people and is headquartered in Stavanger, Norway.

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About Water & Process Technologies

With operations in 130 countries and employing over 7,500 people worldwide, GE’s Water & Process Technologies applies its innovations, expertise and global capabilities to solve customers’ toughest water and process challenges. It offers a comprehensive set of chemical and equipment solutions, as well as predictive analytics, to enhance water, wastewater and process productivity. Water & Process Technologies strives to enable customers to meet increasing demands for clean water, overcome scarcity challenges, strengthen environmental stewardship and comply with regulatory requirements.

About GE

GE (NYSE: GE) is the world’s Digital Industrial Company, transforming industry with software-defined machines and solutions that are connected, responsive and predictive. GE is organized around a global exchange of knowledge, the "GE Store," through which each business shares and accesses the same technology, markets, structure and intellect. Each invention further fuels innovation and application across our industrial sectors. With people, services, technology and scale, GE delivers better outcomes for customers by speaking the language of industry.

* Trademark of General Electric Company; may be registered in one or more countries.

Beth Coffman
Soteryx Corporation
[email protected]
+1 518 886 1076

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