Gas Field News

Sonardyne’s Sentry IMS in the US Gulf of Mexico (Photo: Sonardyne)

Leak Detection Sonar Deployed in the US Gulf

been deployed on the seafloor at more than 2,000 meters water depth. The ROV-deployable Sentry IMS,  which features a titanium housing and can be installed short-term or permanently, is able to detect, classify and localize subsea releases of hydrocarbons from either the seafloor or oil and gas field production infrastructure, its developer said.In this latest deployment, Sentry is being deployed under a six-month trial that will demonstrate its ability to provide real-time subsea asset monitoring. The Sentry sonar head, which is mounted on a seafloor lander, is connected into an existing power

(Image: Helge Hansen / Equinor)

Kvaerner to Study Floating Wind Structures

the five Snorre A and B, and Gullfaks A, B and C platforms. In periods of higher wind speed this percentage will be significantly higher.Kvaerner, which provides the full scope of engineering, procurement, construction and installation (EPCI) services for both fixed and floating platforms for oil and gas field developments, said it has identified offshore wind as one of the company’s main growth areas in the coming decades. Today, Kvaerner said it offers fixed and floating substructures in steel and concrete as well as converter platforms for offshore wind farms.“During the FEED period we

Largescale pipe ready for dispatch by rail from Liberty Pipes, Hartlepool (Photo: Liberty)

Liberty Wins North Sea Pipe Contract

Sea gas.The mills, which were acquired and relaunched by Liberty, part of Sanjeev Gupta’s GFG Alliance, in late 2017, have just begun making the first batch of a total order for 12,000 metric tons of 24” steel pipe from global engineers Subsea7, that will be used in the Shell Shearwater gas field over 200 miles off the coast of Scotland.Over the next few months workers at Hartlepool will make around 22 miles of heavy-duty pipe that will lie 90 meters under the sea, helping channel millions of cubic meters of gas each day to the huge St Fergus onshore terminal in Aberdeenshire.This order

(Image: Norwegian Petroleum Directorate)

Shell to Pick Either Onesubsea or TFMC for Ormen Lange Phase 3

Shell will develop the third phase of its giant Norwegian gas field Ormen Lange with a subsea compression system, the oil major said in a statement on Friday.The company will either choose Schlumberger's Onesubsea or TechnipFMC to do the work, it said, adding that it would take a decision later in 2019. (Reporting by Gwladys Fouche, editing by Terje Solsvik)

The Troll C platform (Photo: Øyvind Hagen / Equinor)

Equinor to Build CO2 Storage Under the Seabed

around the time of the breakthrough Paris climate change agreement in 2015.But environmentalists say is a costly technology that will perpetuate the status quo when rapid and deep cuts to energy use are needed to limit global warming.The planned storage will be located near Norway's largest oil and gas field, Troll, and aims to be able to receive CO2 from onshore facilities, such as power or cement plants, to reduce emissions to the atmosphere.Equinor and partners Shell and Total are working on front-end engineering and design (FEED)-studies, which should provide more accurate cost estimates.The preliminary

Maneuvering the Subsea Power Hub over the pier for the first system wet trial. (Photo: Nortek)

Tidal Power for Seabed Oil and Gas Installations

as green as possible.Successful testA prototype Power Hub, using one turbine, completed a successful eight-month sea trial in December 2017 at the European Marine Energy Center (EMEC) in the Orkney Islands, northern Scotland. EC-OG is now refining the system to match the requirements of oil and gas field developers. These include having two or more turbines and differing battery sizes depending on site requirements.The device being lowered to the deck of the Leask Marine C-Odyssey workboat, in preparation for installation at the European Marine Energy Centre (EMEC). (Photo: Nortek)EC-OG is confident

This slice, at a depth of 595 m through the Q model, clearly highlights the extent of the Peon gas field (image courtesy of CGG Multi-Client & New Ventures)

High-End Seismic Imaging Solves Shallow Gas Challenges

data volume covering 35,400 km².The Northern Viking Graben, like many other areas around the globe, contains a wide range of localized near-surface geological anomalies – with shallow gas being a particular feature in this area. In fact, some of the shallow gas accumulations are identified gas fields, including Frigg and Peon.Shallow gas anomalies typically exhibit anomalously high absorption, associated with amplitude attenuation and phase distortion of seismic data. These challenging issues cause unwanted effects during imaging, such as dim zones, uneven image illumination and migration

Boka Atlantis (Photo: Boskalis)

Boskalis Wins Subsea Contract at Tyra Gas Field

N.V. has been awarded the Tyra Redevelopment Subsea Installation Phase II contract by Total E&P Denmark.The sizable contract includes subsea engineering, procurement, fabrication and installation for the Tyra Redevelopment project in order to extend the operational lifetime of the Tyra offshore gas field by at least 25 years.Boskalis will provide a broad range of specialist subsea contracting activities for relocating and connecting subsea pipelines as well as the installation of manifolds, vertical platform production risers and umbilicals. The project will be carried out from the Boskalis offices

(Credit: Blue Ocean Monitoring)

Hunting Hydrocarbons

detail about the hydrocarbons detected. The Franatech laser methane sensor “high-grades” the information gathered, says Lind. An oxygen sensor was also added.During the 14-day Yampi project, again at 200m water depth, the glider was guided over a well-known seep, near the Cornea oil and gas field. A fluorometer primarily detecting FDOM (fluorescent dissolved organic matter) values was used to detect and help analyse what type of hydrocarbons were present alongside a laser methane sensor.Results from the survey showed a background dissolved methane concentration of 3 to 4 volumes per million

Moog Focal LVEOS Model 430 (Photo: MacArtney)

MacArtney Supplies Moog Focal LVEOS Swivel to FPSO

Optical Swivel (LVEOS) to Norwegian turret and loading systems provider for intended inclusion into a swivel stack for a floating production, storage and offloading vessel (FPSO).OneSubsea, a Schlumberger company, will supply the Moog Focal LVEOS to the FPSO operating in Block SK10 of the Helang gas field located off the coast of Sarawak, Malaysia.Due for delivery in the mid-fourth quarter of 2018, the Moog Focal model 430 provides a rotating connection for low voltage power, electrical signal and optical cables in a single package. The shaft is configured with hanging turret side cable pigtails

(Credit: Israel Antiquities Authority)

Ancient Relics Found in Subsea Pipeline Route

Underwater archaeologists have been scouring the seabed where a gas pipeline is being built off Israel's coast in a bid to preserve relics near a 5,000-year-old port which once was a key trade hub for the Mediterranean's ancient civilizations.The pipeline from the deep-sea Leviathan gas field that is due to begin production late next year comes ashore near Dor Beach in northern Israel, a popular spot among Israeli sunbathers.It is also the site of the ancient port of Dor, where hidden in the seabed lie the vestiges of marine traders throughout the ages - from the Phoenicians to the

Photo: Harald Pettersen / Equinor

Equinor to Boost Drilling to Extend Norwegian Shelf Life

said it remained on track for to keep profitable oil and gas production in Norway towards 2030, but needed new measures to tackle a decline after that, including a deliberate push to find more natural gas."We aim to achieve an average recovery rate of 60 and 85 per cent respectively at our oil and gas fields. This is almost twice the average global oil recovery rate of 35 per cent," Arne Sygve Nylund, Equinor's head of development and production in Norway, said.Equinor's current recovery rate for oil stands at 50 percent. The company did not provide a recovery rate for gas.Nylund didn&rsquo

Fairfield Geotechnologies Wins Persian Gulf Project

Geotechnologies.Fairfield Geotechnologies’ Z700 data acquisition system is designed to meet the challenging HSE and acquisition requirements of this project. Z700’s simplified deployment and retrieval process are suited to safely navigating through the dense infrastructure of a major gas field.“The Persian Gulf represents tremendous opportunity for OBN acquisition,” said Charles Davison, President and CEO, Fairfield Geotechnologies. “This project has it all: a complex and ecologically sensitive sea floor, crowded infrastructure and demanding geophysical objectives.

CNOOC Developing New Deep Sea Gas Block in South China Sea

China's offshore oil and gas producer CNOOC has started developing a new gas field in the South China Sea, the official Xinhua News Agency reported on Tuesday.The Lingshui 17-2 gas field is the first deep sea gas block fully operated by a Chinese company, Xinhua said citing CNOOC officials.The deep sea project, which was discovered in 2014, is 150 km (94 miles) south of China's southern Hainan island, with an average operational depth of 1,500 metres, according to a Reuters report from that year.CNOOC is ready to start building a subsea level platform used for drilling, Xinhua said.(Reporting

(Photo: MDL)

Double Bibby Win for MDL

Maritime Developments (MDL) has won a flex lay project with Bibby Offshore just after completing an umbilical installation with the EPIC contractor.The recently concluded project in a North Sea gas field used the MDL RDS-400, a 400-mertic-ton reel drive system, operated by MDL offshore personnel and supported by the company’s 3mradius departure chute. The spread was used for the recovery and replacement of a 2km electrical umbilical.The subsequent project will use the same RDS model to install a riser in an oilfield offshore Aberdeen, Scotland.Dave Gardiner, MDL Business Development &

SOCAR Inks Deals for Caspian Fields with Equinor

Azeri state oil company SOCAR and Norway's Equinor on Wednesday signed a risk service contract for the development of the Karabakh offshore oil and natural gas field in the Caspian Sea.The two companies also signed a product-sharing agreement for Ashrafi, Dan-Ulduzu and Aypara exploration area."The agreements signed today represent a natural next step in the region. This will strengthen our position in a prolific basin and develop growth options," Equinor Chief Executive Eldar Saetre said in a statement.To operate the licences, Equinor and SOCAR will form a 50-50 joint operating company.

MDL TTS-4/310 Series Tensioner (Photo: MDL)

MDL Awarded Umbilical Installation Project

U.K. based Maritime Developments said it has won a flex lay contract on a major gas field in the Mediterranean Sea.The project, due to start in 2019, will cover installation of an umbilical connecting the production wells to a fixed offshore processing platform.The work will be carried out using MDL TTS-4/310 Series Tensioner, a 110-metric-ton unit, operated by MDL personnel, as part of the MDL Offshore Service.According to MDL, the system will allow safe and efficient handling of the product thanks to its 5m track length and wide cylindrical track opening for passing of umbilical end fittings.

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