[Découvertes] Le pétrole antésalifère au large du Brésil

[Raminagrobis]

Je me demandais comment les brésiliens pouvaient enchainer tant de découvertes. Ben la réponse est simples : ils forent comme des fous !

http://www.rigzone.com/data/results.asp?Operator_ID=20

44 derricks offshore sont actuellement au Brésil pour Pétrobras! Plus quelques unes pour des compagnies privées.

44, dont 32 forent là maintenant.

44, dont la majorité sont des semisubmersibles, des navires de forages, bref du haut de gamme pour forer dans des grands profondeurs d'eau.

Pour comparaison :
http://www.rigzone.com/data/results.asp?Operator_ID=22
Exxon, seulement 21 unités de forages, et y'a moins de haut de gamme dedans.

Les brésiliens ont donc réservé une bonne partie des unités de forage offshore. Pas étonnant que le prix de la journée de prestation des foreurs flambe! Leur investissement dans l'exploration est vraiment énorme.

Mais le pétrole offshore profond (deepwater) risque de n'être qu'un feu de paille. On explore aussi vite qu'on peut, on met les gisements en production au fur et à mesure, et on extrait le pétrole très vite, pour bien des gisements le R/P initial n'est que de dix ans.

donc quand un grand nombre de gisements deepwater auront 8-10 ans, le déclin risque d'être brutal, donc ils risquent d'augmenter fortement l'érosion de capacité annuelle.

[osas09]

Je me demandais comment les brésiliens pouvaient enchainer tant de découvertes. Ben la réponse est simples : ils forent comme des fous !

.........

En tout cas on ne pourra pas dire que les brésiliens ne croient pas découvrir du pétrole.

[Raminagrobis]

En tout cas on ne pourra pas dire que les brésiliens ne croient pas découvrir du pétrole.

N'est ce pas ?

Le site permet de recherche les rigs sur plusieurs critère. Voyons donc où sont toutes ces braves bêtes. Un moyen simple de se faire une idée de l'activité d'exploration et développement offshore (domage qu'on puisse pas savoir si ils creusent des puits d'exploration oui de production).

Je me limite à ceux capables de forer à plus de 1000 pieds (300 m) en eau profonde, les plus chers.

31 sont en afrique de l'Ouest (angola, nigéria, principalement, et quelques autres pays comme gabon, le congo, etc).

1 seul ailleurs en afrique (je sais pas, peut être au large du kenya ou de la tanzanie??)

3 en mer caspienne (sont pas prêts d'aller ailleurs, ceux là )

51 en extrême orient, tout ça ?! Ah non Seuls 4 forent, les autres sont en construction dans des chantiers navals japonais ou coréens. 47 nouveaux en construction, le business se porte bien dites donc.

9 en asie du sud.

41 en asie du sud-est, mais seulement 11 qui forent. Là aussi la plupart sont en construction (20 nouveaux bébés dans les chantiers navals) ou en modification ou réparation.

11 en australie quand même, tout en train de forer.

3 en europe de l'est, mais aucun ne forent, c'est deux en construction (un chantier naval polonais peut être??) et un stocké.

41 en "mer du nord" au sens large (en fait plutôt en mer de norvège et à l'ouest des shetlands, la mer du nord c'est pas assez profond), 37 qui forent et 2 en constructions.

En méditerranée, 8 dont 6 qui forent (je pense que c'est surtout en Egypte) et 2 en chantier (en italie??)

Golfe persique, 3 en construction, aucun qui fore, normal c'est pas assez profond pour avoir besoin de ce genre de plate formes.

cote atlantique du Canada, 1, qui "'attend" (il attend quoi?)

Mexique, 4 qui forent

Golfe du mexique états uniens, 37 dont 29 en train de forer.

Brésil, 38 dont 32 en train de forer.

Caraibes, 3 tous en train de forer. A trinidad je suppose.

Dans le monde, 176 derricks capables de forer en eau profonde sont en train de forer. Attention, certains forent en eau peu profonde, être capable veut pas dire qu'on fait que ça. Le brésil en occupe donc un peu moins de 1 sur 5

Pas moins de 76 nouveaux sont en constructions, la plupart dans des chantiers navals asiatiques. 76 en construction alors qu'il en existe 210 déjà finis, c'est énorme. Je me demande combien sont en commande ou en projet.

7 sont en route.

24 dans des chantiers navals pour des modifications, inspections, mises à jours, réparation


Quand aux derricks pour l'eau peu profonde, moins de 1000 pieds, il en existe 678, 600 finis et 78 en construction. Beaucoup sont vieux et vont être retirés du service, donc c'est clair, et pas étonnant que la flotte ne va pas croitre comme celle des plate formes spécialisés pour l'eau profonde!
425 sont en train de forer.

[energy_isere]

Nouvelle découverte de pétrole leger au large du Brésil.

Petrobras makes new, "important" light oil find

RIO DE JANEIRO, May 29 (Reuters) - Brazilian state oil company Petrobras on Thursday announced a new "important" find of light oil 36 API grade in the shallow waters of the Santos basin off Sao Paulo state's coast.
Unlike a slew of recent discoveries in the subsalt cluster at great depths at sea, the find was made above the layer of salt about 6,560 feet (2,000 meters) under the ocean floor and and at a water depth of just 770 feet (235 meters), which should make future output easier.
Petrobras is the only company working the BMS-40 block, where it expects to start drilling a second well next month, it said in a statement. It provided no reserve estimates.
The find, located about 170 miles (275 km) south of the coastal city of Santos, was confirmed via a formation test, which showed a high flow rate for the type of reservoir and oil found and an estimated per-well production potential of more than 12,000 barrels per day, the company said.

http://www.guardian.co.uk/business/feedarticle/7549485

[the_oliver_2000]

Important mais aucune estimation des réserves, voilà qui laisse beaucoup de place au flou.

[energy_isere]

Important mais aucune estimation des réserves, voilà qui laisse beaucoup de place au flou.

Comme dit dans le texte, Petrobras doit effecuter un 2iéme forage le mois prochain.

Qu' ils ne donnent pas de pronostic sur les reserves pour le moment est plutot un signe de prudence je trouve.

Wait & See.

[Raminagrobis]

Important mais aucune estimation des réserves, voilà qui laisse beaucoup de place au flou.

Comme dit dans le texte, Petrobras doit effecuter un 2iéme forage le mois prochain.

Rien ne dit que ce 2e puits concerne le même prospect (et donc vise à préciser l'exstimation de réserve). Il disent jusque que c'est un autre puits dans le même bloc.

[energy_isere]

Encore un sondage positif de pétrole par Petrobras au large du Brésil :encore à grande profondeur et sous une couche de sel.

UPDATE 1-Brazil's Petrobras finds more light oil in subsalt


SAO PAULO, June 12 (Reuters) - Brazil's state-run oil company Petrobras (PETR4.SA: Quote, Profile, Research) (PBR.N: Quote, Profile, Research) said on Thursday that it struck light oil in another ultra-deep field under the subsalt layer in the Santos Basin.

This is the latest in a slew of promising deep-water light-oil discoveries over the past year that have helped more than double the price of Petrobras shares.

Petrobras said the find was in the Guara, the smaller of two fields in the BM-S-9 ultra-deep block, which also holds the so-called potential super-giant Carioca field. It also yielded light oil from an exploratory well sunk in September of 2007.

The oil from the Guara ranked 28 on the API scale, making it much lighter than the bulk of crude produced in Brazil, which ranges around 14 to 18 API.

Petrobras offered no reserve estimate for the new find, which lies at a very technically challenging ultra-deep depth, under 2,141 meters of water and another 5,000 meters under the ocean floor, including a salt layer.

The field lies 310 km off the coast of Brazil's Sao Paulo state in the Santos Basin.

Petrobras is operator at the BM-S-9 block with a 45 percent stake in the exploration and production concession. Its partners BG Group and Repsol YPF hold 30 percent and 25 percent stakes, respectively. (Reporting by Reese Ewing; editing Carol Bishopric)

http://uk.reuters.com/article/oilRpt/id ... 4620080613

[the_oliver_2000]

Petrobras offered no reserve estimate for the new find, which lies at a very technically challenging ultra-deep depth, under 2,141 meters of water and another 5,000 meters under the ocean floor, including a salt layer.

5000 m sous le plancher marin déjà situé à 2141 m de la surface Ca ne va tout de même pas être une partie de plaisir !!

[energy_isere]

Petrobras announces new light oil discovery off Rio

Brazil's government managed oil and gas corporation Petrobras announced on Thursday a new discovery of light oil with an API grade of around 30 in the ultra deep Santos Basin off the Sao Paulo coast.



The new discovery well, called 1-BRSA-618-RJS (1-RJS-656) and informally knows as Iara, is located in the smaller area of the original Tupi block, approximately 230 km off the coast of the city of Rio de Janeiro, and 2.230 meters from the water line.

The well is still being drilled in search of deeper prospects, said the Petrobras release.

The oil in the Iara field controlled 65% by Petrobras, 25% by the BG Group and 10% by Portugal's Galp Energia is near the Tupi field, where Petrobras has estimated recoverable reserves at between 5 billion to 8 billion barrels.

The discovery was proved by a light oil sampling collected via a cable test carried out in reservoirs at a depth of 5,600 meters and was officially reported to the Brazilian the National Petroleum Association (NPA) this week, reported Petrobras.

Experts agree that the sub-salt production may be technically challenging and costly, partly because salt movement requires reinforced piping, which can still be damaged. Production from above the salt level is easier.

Nevertheless analysts are bullish on Brazil's oil potential, expecting the country to become a major world oil producer in the next decade. Brazil already produces enough to meet its net oil needs of about 1.8 million bpd, and exports some crude.

Last week in London Petrobras president, José Sergio Gabrielli de Azevedo and the corporation’s European general manager Joaquim Dib Cohen following a meeting with investors, announced the beginning of production in the pre-salt field.

Gabrielli said output from the first pre-salt well in the Jubarte field, in the Campos Basin, is expected to begin in September.

Initial production is anticipated to be 10,000 bpd. The well is interconnected to platform P-34, which went online in late 2006, in Espírito Santo.

Gabrielli also revealed that long term testing at the Tupi field is scheduled for March 2009 and the pilot project should begin production by 2010 with initial output in the range of 100,000 bpd together with some 3.5 million cubic meters of natural gas pd.

[energy_isere]

des nouvelles des champs géants découvert au Brésil (offshore).

Survey shows Brazil's two major oil fields probably connected


RIO DE JANEIRO, Aug. 13 (Xinhua) -- A latest discovery shows two pre-salt layer oil fields in Santos basin waters being explored by Brazil's state-owned oil and gas giant Petrobras may be connected, local media reported Wednesday.

There is a big chance one oil field, informally called Iara, is actually a part of the Tupi mega-field, Petrobras' latest tests suggests. The oil field Tupi was discovered in July 2006 with an estimated capacity of 5 billion to 8 billion barrels of oil equivalent.

Petrobras plans to make a seismic analysis of the area where the two fields are located to see whether they are connected.

If Tupi and Iara are proven to be in the same field, Petrobras will continue its exploitation there and do not need to change the chronogram of exploitation.

The company plans to start its long-term tests in the area in March 2009.

[energy_isere]

le Brésil cherche comment concilier les vues du gouvernement et du parlement ("congress") pur savoir comment exploiter les champs géants découverts en off shore sous salin , et comment faire en sorte que tous en profitent et pas seulement de faire du gavage de compagnies pétroliére, fusse t' elle Petrobras.

Brazil plan to control huge oil finds ‘may cause delays’

Lula ... oil is for the union

17 August, 2008,


BRASILIA: The Brazilian government’s plan to take greater control over huge new oil discoveries will face obstacles in Congress and could delay its ambitions to become a global oil player, experts have said.
President Luiz Inacio Lula da Silva wants to change the structure of oil control to give the government more funds for social welfare and education while reducing the power of state-owned oil firm Petrobras and its partners.
“Some think that the oil is for Petrobras. The oil is for the union,” Lula said on Thursday at an event in the Amazon state Para.
In neighbouring Venezuela, President Hugo Chavez has tightened controls over oil to fund social projects. But in Brazil the plan could face a long battle in Congress.
“The debate in Congress won’t be easy, it’s a debate overtns (of dollars),” said Ideli Salvatti, Senate leader for the ruling Workers’ Party.
Petrobras shook the oil world last November when it discovered a deposit with estimated reserves of 5-8bn barrels, the world’s second-biggest find in 20 years.
Other reserves thought to exist in the area could vault Brazil from 17th to 10th among world oil producers. The government has said it plans to join The Organisation of Petroleum of the Exporting Countries (Opec).
Under guidelines from Lula, government sources say a new state holding company would now manage exploration and production in the so-called sub-salt fields, taking some power from the oil industry regulator ANP.
In addition, production-sharing contracts would give the government the right to sell the oil and pay companies a share. Currently, oil companies own the oil they produce and pay the government royalties and taxes.
“The idea of a new state company and of production-sharing contracts are guidelines by the president but nothing has been decided yet,” said a spokesman for the Ministry of Energy and Mines.
With more control over oil, the government wants to export more derivatives than crude.
“What are we going to do with this oil? Sell it purely and simply? No. Whoever wants to come here and get oil and take as much as he likes. Can he come? No,” said Lula in Para.
Even government supporters say the government may be opening a Pandora’s box by renegotiating spoils after finding the treasure.
If reforms involve constitutional amendments, the opposition may be able to block the proposal, Salvatti said.
“If the government has any common sense, it will avoid altering the Constitution,” Salvatti said.
The government intends to respect the contractual rights of companies already prospecting in the new oil fields.
“Twenty-five percent of the sub-salt cluster has already been tendered. We won’t touch that,” said a senior government official close to Lula.
But if seismic testing confirms the entire cluster is a single field, the government will have to lump together old and new contracts under the new legislation, experts said.
Petrobras shareholders, who include large foreign investment funds, have threatened to take legal action against the government if they lose out.
The government intends to present a proposal to Congress in early 2009, before campaigning for 2010 presidential elections. But that may prove an optimistic timeline.
“I don’t want to talk about resistance but (we want) clarifications, debate and exhaustive discussions,” said Jose Agripino, Senate leader for the opposition DEM party.
The government also wants to discuss a redistribution of oil revenues for states and municipalities. That is an even more daunting task, experts say.
“It will be a tight schedule before the 2010 presidential elections and the end of the Lula administration,” said Erasto Almeida,” analyst with Eurasia Group consultancy in New York.
Almeida said the government may end up raising its tax take from oil rather than changing the legal structure.
Petrobras in one of the sub-salt clusters shares drilling rights with Galp, ExxonMobil, Amerada Hess, BG Group, Repsol and Shell.

– Reuters

http://www.gulf-times.com/site/topics/a ... rent_id=28

[energy_isere]

La compagnie pétrolière brésilienne Petrobras a annoncé hier dans un communiqué que "les réserves estimées de pétrole et de gaz naturel du gisement en eaux très profondes de Iara sont comprises entre trois et quatre milliards de barils".

Le gisement du Bloc BM-S-11 est composé de deux zones exploratoires.

Dans l'une d'entre elles, le premier gisement, connu sous le nom de Tupi, a été foré avec succès en Juin 2006, avec un volume récupérable estimé entre 5 et 8 milliards de barils de brut léger (zone grise sur la carte).

L'autre gisement, foré plus récemment (en août 2008), connu sous le nom de Iara, est situé dans la zone nord de Tupi (zone verte sur la carte), à quelques 230 km au large des côtes de Rio de Janeiro, à une profondeur de plus de 6000 mètres et sous une couche de sel de 1000 m.

http://www.enerzine.com/10/5821+reserve ... iara+.html

[SuperCarotte]

On parlait pas initialement de 30 milliards de barils ?

[energy_isere]

On parlait pas initialement de 30 milliards de barils ?

si si, voir le premier post du fil ....