Production • Processing • Handling
equivalent plant on land. Shell’s technology has been adapted for floating LNG, and engineers designed components that will stack vertically to save space. Te cooling plant, for example, will be placed above the vast storage tanks that have a capacity equivalent to around 175 Olympic swimming pools. Specially designed risers will draw 50 million litres of cold water from the ocean every hour to help cool the natural gas.
Brazilian production on the up Carlos Tadeu Fraga, executive manager for Petrobras’ pre-salt exploration and production, told the recent Offshore Technology Conference (OTC 2013) that between 2008 and April 2013 the cumulative production from the pre-salt reservoirs in the Campos and Santos Basins has reached 192.4 million barrels of oil equivalent (boe - both oil and gas). According to Fraga, daily production exceeded 311,000bbl/d on 17 April, more than double the daily average production of 121,000 barrels in 2011. Te average pre-salt production in April was 294,000bbl/d. He also revealed that there are seven platforms
and 19 wells currently producing in the pre-salt of both basins. He highlighted that the average production for each well of FPSO Cidade de Angra dos Reis, in the Lula pilot project, is approximately 25,000bbl/d, higher than the original estimates of 15,000bbl/d. He also said that FPSO Cidade de São Paulo, in Sapinhoá, will start production in January and FPSO Cidade de Paraty, allocated to Lula Nordeste, is already in place and will start production in June. Petrobras’ business plan for 2013-2017 forecasts that the milestone of 1 millionbbl/d operated by itself in the pre-salt will be exceeded in 2017, reaching 2.1 millionbbl/d in 2020. Te pre-salt was discovered in 2006 with the field currently known as Lula (formerly known as Tupi), in the Santos Basin, off the coast of Rio de Janeiro. Te first pre-salt oil was produced in September 2008 in the Jubarte field, in the Campos Basin, when a well was connected to the P-34 platform which was already operating in post-salt reservoirs of the basin.
Success in Sumatra NuEnergy Gas says that pilot production operations have recommenced at the Muara Enim pilot production site in South Sumatra, Indonesia. With completions across five coal seams via the use of radial jet technology, NuEnergy expected gas and water production to exceed past results. Tis expectation has been met with gas production recommencing at higher rates within two hours of
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the commencement of dewatering operations. NuEnergy’s chairman Graeme Robertson commented: “We are pleased to have successfully recommenced pilot production at Muara Enim, representing another important step towards achieving our first gas sale, expected in December 2013. Gas water production has exceeded our expectations and we continue to work with an existing gas buyer and our project partner PERTAMINA to achieve this goal.” NuEnergy is now close to awarding a drilling contract to one of a shortlist of contractors with a view to committing to a two well development programme (with options to drill more) to complete the Muara Enim pilot production site. Te drilling of the next two pilot wells is scheduled to commence in late July. Dewatering operations will continue in parallel with drilling operations for the next two pilot wells, which will be connected to the pilot site as they are completed.
As the pilot programme gains maturity,
NuEnergy will work in co-operation with its off- take partner PT DPS to commercialise the pilot gas produced at the pilot site. Current production at the pilot site is sufficient to generate on site power and offset operations costs in the order of US$2000 (€1500) per day. With a fully operational pilot plant on track for completion by year end, the forecast 1.5 million scfd of CBM production is expected to generate revenue in the order of US$15,000 (€11,000) per day. Finally UK company Balltec has been contracted
by Houston Offshore to supply and install ten MoorLOK subsea mooring connectors for the Tubular Bells project, located in the Mississippi Canyon area of the Gulf of Mexico. Te 15,000kN connectors will be used for mooring the Williams floating production system (FPS) Gulfstar GS1 at a water depth of 4500ft. Te connectors, which are designed for both temporary and permanent mooring of floating structures, are due to be installed shortly. Te company also reports that it has successfully completed a MoorLOK contract for the Marine Well Containment System (MWCS) project. Tis is run by the Marine Well Containment Company as part of a system that can respond to a US Gulf of Mexico deepwater well control incident. Te contract was awarded by Technip and involved enhanced connectors that use Balltec’s new helical connector as a secondary locking system. Tis in turn was developed as a result of extensive consultation between Balltec and Technip engineers in an effort to meet user demands for increased confidence and safety. ●
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