R/V Meteor – German Research Ship off Brazil
The R/V Meteor research ship arrived in Fortaleza, Ceara, on Brazil’s Equatorial Margin last Friday, June 28th. The Meteor which has a complement of 30 scientists of different nationalities, including one Brazilian, left port on Monday as it begins another Atlantic crossing to Namibia in West Africa, where it is due to arrive on July 29th. Along the voyage the ship will be collecting samples and data from deep waters, to be analyzed by a multidisciplinary team of researchers, composed of chemists, biologists and physicists. The only Brazilian aboard is Marcio Pereira, a 63 year old professor of Oceanographic Physics from the Geophysics department of the Federal University of Rio Grande do Norte (UFRN), whose studies will be concentrated in variations of marine currents.
Efficient Drill Bits for the Pre-salt
The expression "pre-salt" refers to an aggregation of rocks located offshore along large portions of the Brazilian and West African coasts, it forms a carbonate rock interval that ranges under an extensive layer of salt which, in certain areas of the Brazilian coast, can be as much as 2,000 meters thick. The total depth of these rocks formations, or the distance between the surface of the sea and the oil reservoirs under the salt layer, can be as much as 7,000 meters. Drilling in the pre-salt is extremely complex and may require multiple trips being made by the drill bit in order to drill short lengths due to different rock layers with varying degrees of hardness. Another challenge is that the salt is very corrosive and is also plastic, as you drill down, it tends to close the well walls.
Ocean Thermal Energy Conversion – Renewable Energy from the Sea
According to OTEC International LLC (OTI), in 1870, Jules Verne introduced the concept of ocean thermal energy conversion (OTEC) in his book, Twenty Thousand Leagues Under the Sea. Within a decade, American, French and Italian scientists are said to have been working on the concept but the Frenchman, physicist Jacques-Arsene d’Arsonval, is generally credited as the father of the concept for using ocean temperature differences to create power. “I owe it all to the ocean; it produces electricity, and electricity gives heat, light, motion, and, in a word, life to the Nautilus.” Jules Verne, Twenty Thousand Leagues Under the Sea. D’Arsonval’s student, Georges Claude, built the first OTEC power plant in 1930 in Cuba, which produced 22 kilowatts of electricity.
World's Largest PLV
The extraordinary growth of the world subsea market over the past decade and the raising demand for O&G plays in deep and ultra-deep waters to begin production and for the deep and ultra-deep water drilling to continue in Brazil, at the GoM and in WA, has led to the development of a range of new offshore field development and support vessels, including a large new pipelay vessel, currently laying its pipelines along the GoM. Since 2012 Saipem has been operating the MV CastorOne, it is a ship-shaped pipelay vessel with an overall length of 330 m (excluding stinger) and DP 3 capable. The CastorOne was classed by ABS (American Bureau of Standards) and is also Ice classed, capable of berthing 700.
Subsea Well Response Project to be launched in Brazil
With the continued increase in deepwater drilling off the coast of Brazil, it is good to see that Petrobras, Brazil’s national operator, will soon have a well containment device ready for immediate deployment in case of a deepwater blowout such as was experienced in the Deepwater Horizon tragedy at the GoM. According to a Petrobras drilling inspector who prefers to remain anonymous, the Brazilian super-major player believes that their well drilling and completion systems are totally reliable as long as their safety procedures are followed, however, they are taking no chances and have joined forces with other major operators to increase drilling, completion and production safety standards worldwide.
A Monster Named Libra
Back in 2009 I asked a good friend of my late father, who happened to be a long time Petrobras geologist, if he really knew the full potential of the pre-salt, after a while he looked up and said no not really, I know there are big fields out there, probably up to 10 billion boe in some reservoirs, possibly much more... Well, Petrobras kept on drilling and when Libra was found northeast of the Lula field (5 to 8 billion barrels boe), in 2010, the expectations ran high. Maybe 3.7 billion boe, maybe 15 billion boe. Probably 7.9, those are the numbers the ANP had in 2010. By May 2011 the ANP was downgrading it to 5 billion barrels boe.
AUV-towed Magnetometer Shows Potential in Seabed Survey
Marine Magnetics Corp from Markham, Ontario has successfully tested an AUV-towed Magnetometer. According to Doug Hrvoic president and owner of Marine Magnetics Corp, a company specialized in researching, developing and manufacturing marine magnetometers, OceanServer’s Iver2 AUV model was chosen for its design. “The Iver2 was designed to enable the integration of various sensors by a third party, and without direct involvement of the Iver developers,” says Bob Anderson, president of OceanServer Technology. “From a hardware standpoint, one approach has been to tow a sensor in the water column behind the AUV, and to connect a tow cable/electrical interface cable to a rugged…
Environmental Risks of Drilling the Brazilian Equatorial Margin
With the 11th round of tendering for O&G block in Brazil set to start next week, it is important to look at some of the serious risks involved in drilling for O&G in Brazil’s Equatorial Margin. Most of the offshore blocks being tendered in this 11th round of bidding are located along Brazil’s northeast and north coasts. This, according to the Brazilian government, is being done in order to de-centralize O&G production in Brazil, where most of the oil and gas E&P is done along the southeast coast, basically centered off the states of São Paulo, Rio de Janeiro and Espirito Santo. This is all well and good, when considering the need to redistribute O&G wealth to other parts of the country…
New Subsea Center in Rio – Facing Challenges and Meeting Industry Demands
With the continuous increase of subsea equipment and services companies setting up in Rio de Janeiro, including local companies, The State Government, through its State Office for Local Development (Secretaria Estadual de Desenvolvimento Econômico), has decided to create a subsea center in order to stimulate the sector and bring investments to subsea technology suppliers eyeing the Petrobras orders. Today there are around 35 subsea companies located in Rio (8 offering equipment and 27 offering services). These companies have a workforce of almost 1,200 employees, and the idea behind the subsea center is to attract suppliers and investors for these companies.
JIP Collapse Assessment of Offshore Pipelines with D/t < 15
Based on project experience, research, and joint industry development work, DNV issues a number of pipeline codes. These comprise service specifications, standards and recommended practices, and are highly regarded within the international pipeline community. The DNV OS-F101 ‘Offshore Standard for Submarine Pipeline Systems’ provides acceptance criteria and design procedures for pipelines. The standard applies modern limit-state-design principles with ‘safety classes’ linked to consequences of failure. The DNV standard is complemented by several recommended practices (RPs), which give detailed advice on how to analyze specific technical aspects according to stated criteria.