Marine Technology Reporter Blogs - discovery

The auction of Libra pre-salt field, forecast to contain between 8 and 12 billion barrels boe in recoverable reserves, was Brazil's first bidding round in the pre-salt area, and failed to meet the high expectations placed on it by the Brazilian government, yet the government, the ANP (National Oil Regulator) and Petrobras are highly satisfied with the results because they managed to attract important and experienced partners in Shell and Total, along with the high rolling Chinese companies. Despite a nine-month global publicity campaign and predictions of fervent bidding by as many as 40 firms, the license was awarded to the only consortium to register a bid. Another controversial state controlled company PPSA will oversee the contract’s implementation, having both voting and veto rights.

The recente Discovery of a shallow water pre-salt reservoir by Brazilian private operator OGX has definitely raised a few eye brows. This novelty is a first in Brazil as up to now all other pre-salt reservoirs have been found in ultradeep waters off the Brazilian coast and usually very far from the coast. This new discovery which is located in BM-S-57 Block, in the Santos Basin and is less than half the distance from the mainland as other pre-salt finds in the Santos Basin, exactly 102 km from the coast of Rio de Janeiro. The wellhead is only 155 meters deep and the well was drilled down to 6,135 meters, which is the normal depth where pre-salt reservoirs are expected to be found.

Barra Energia do Brasil Petróleo e Gás Ltda or Barra Energia was established in 2010 as an independent O&G exploration and production company. Its headquarters is in the city of Rio de Janeiro, Brazil, close to all the main O&G Basins in Brazil and where all other players working the Brazilian offshore are based. The company was launched by executives, engineers and geologists that with long career histories in the O&G business, most hailing from super-majors like Petrobras and also from Repsol. The company advertises its main competitive edge as being its technical and commercial expertise and local knowledge. Barra Energia is counting on this expertise to guide them in their E&P efforts which will primarily focus on the three major offshore O&G areas in Brazil…

It took a while to happen, but Petrobras and Chinese oil and petrochemical companies finally reached partnership agreements. Considering the scope of the Brazilian pre-salt and the expected growth of the Brazilian O&G market, these partnerships may become vital, as much more investments will be needed along the next 10 years. These partnerships in research and O&G exploration and production have been in negotiations for a long time but it took an official Brazilian delegation, headed by Brazilian President Dilma Rouseff, going to China, in order make it happen. It was a certainty in the market that this partnership would eventually come to be, it was just a matter of when it would happen and what it would encompass.

Petrobras, Brazil´s National operator hás recently disclosed new local and international O&G discoveries. The discoveries in Brazil are all in deepwater. In the Espírito Santo Basin the hydrocarbon accumulations were found in the Cretaceous reservoirs of a well known as Brigadeiro, down at 1,900 meters and located within the BM-ES-23 concession area in Block ES-M-525, 115 km off the coast of the State of Espírito Santo in southeast Brazil. This new deepwaterdiscovery at the very promising Espirito Santo Basin, was confirmed through wireline logging and fluid sampling, in t reservoirs located at around 4,200 meters.Petrobras is the operator of block BM-ES-23 (65%), which is also composed of Shell Brasil Petróleo (20%) and Inpex Petróleo Santos (15%).

Even as Petrobras allegedly slows its exploration efforts, new discoveries are still being uncorked in the Santos Basin. While the national player announced the start up of the EWT in the Guará area in late December, yesterday a new deepwater pre-salt light oil accumulation is discovered in an adjacent area at the same BM-S-9 exploratory block. The Guara  EWT is producing through well SPS-55, and  is expected to last for five months with a daily production is estimated at 14,000 barrels of oil per day. The Guará area is located in block BM-S-9 and around 300 kilometers off the coast of São Paulo state. The recoverable O&G volumes in Guará are estimated at between 1.1 and 2 billion boe with a around 30º API.

OGX estimates that the total Parnaiba Basin natural gas potential at 15 trillion cubic feet. This discovery opens a new exploratory frontier in an onshore basin, the first in two decades. At the Campos Basin, OGX-18 well reports indication of hydrocarbons, adding to the excellent results of their ongoing exploratory campaign.OGX Petróleo e Gás announced that, through its subsidiary OGX Maranhão, has identified presence of gas in the Devonian section of well 1‐OGX‐16‐MA, in the block PN‐T‐68, in the onshore basin of Parnaiba. OGX Maranhão, an entity formed by OGX S.A. (66.6%) and MPX Energia S.A. (33.3%) is the operator and holds a 70% stake in this block, while Petra Energia S.A. holds the remaining 30%.

Devon Energy has informed ANP (Brazil´s National Petroleum Agency), that it has discovered indications of hydrocarbons in block CM-471 at the Campos Basin. This block is operated by Devon in a 50%/50% partnership with Brazil´s national operator Petrobras.Block CM-471 was acquired by Devon and Petrobras back in 2005, during ANP´S 7 round of bidding along with block C-M-473, both making part of block BM-C-34. Earlier this year Devon had disclosed the existence of potential O&G reservoirs in the adjacent block BM-C-32. Devon plans to extend the drilling in both blocks down to the pre-salt depths. Well 6DEV18PRJS in block CM-471 is located at a depth of 2,484 meters, being one of the deepest of the deepwater wells in Brazil.

Since last year OGX Petróleo e Gás has been having excellent results in its exploratory campaign in the Campos Basin.OGX Petróleo e Gás, which is the Brazilian O&G company responsible for the largest private sector exploratory campaign in Brazil, recently announced that it had identified two oil-bearing intervals, one in the Aptian section of well 1-OGX-10-RJS and another in the Eocene section of well 1-OGX-13-RJS, which are located in the BM-C-42 and BM-C-41 blocks, respectively, in the shallow waters of the southern part of the Campos Basin, where they have been drilling the majority of their exploratory wells, with a very high percentage of success. OGX holds a 100% working interest in both blocks.

The recent discovery of hydrocarbon accumulations under the Albacora Leste field´s pre-salt layer confirms there potential of the Campos Basin to be a significant pre-salt producer.The recent oil discoveries in pre-salt layers under certain Petrobras concession areas in the Campos Basin are already being considered significant and tend to offer the possibility of production start-up in a much shorter time frame than the major pre-salt discoveries in the Santos Basin. This is due to the fact that the fields under which these new discoveries are located already have production infrastructure in place and whatever new subsea wellheads are installed will only need to be connected to one of the FPSOs, FSOs or rigs already in place.

This new pre-salt discovery in the Campos Basin, highlights the potential for new discoveries in both the pre and post salt layers of this mature basin, which up to now has been the main O&G producer in Brazil and until recently was considered by many as not having much more to give in terms of new reservoirs.Petrobras announced the discovery of a new accumulation of light oil (29o API) in the pre-salt layer of the Campos Basin, in water depths of 648 meters at the Marlim field. Marlim is located in the north-eastern part of Campos Basin, in water depths ranging from 648m to 1,050m. It has some 102 production wells and 50 injection wells. Over 80km of rigid pipelines and 400km of flexible lines have been laid on the field.

Increased investment in subsea systems instead of intensive use of rigs and FPSOs is looking to be the present and future trend in the Brazilian O&G market. Subsea system equipment manufacturers in all levels, from subsea trees to the smallest subsystem manufacturers, have a good reason to be happy with present and future business prospects in Brazil. Not only are the deepwater pre-salt plays being developed and other propective deepwater plays being drilled, but also various new post-salt shallow water fields have been recently discovered, most in the southern Campos Basin by OG X Petroleo and more recently by Petrobras, which has confirmed the potencial of its play adjacent to the Pampo field.