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Seminar on Marine Mineral Resources of the South and Equatorial Atlantic Ocean Clayton de Souza Pontes Ministry of Mines PowerPoint Presentation
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Brazilian Potential for Oil and Gas. Seminar on Marine Mineral Resources of the South and Equatorial Atlantic Ocean Clayton de Souza Pontes Ministry of Mines and Energy Secretariat of Petroleum, Natural Gas and Renewable Fuels November 28, 2008. Summary. Introduction Methodology

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slide1

Brazilian Potential for Oil and Gas

Seminar on Marine Mineral Resources of the South and Equatorial Atlantic Ocean

Clayton de Souza Pontes

Ministry of Mines and Energy

Secretariat of Petroleum, Natural Gas and Renewable Fuels

November 28, 2008

summary
Summary
  • Introduction
  • Methodology
  • Multivariable Area Relevance Function (FIMA)
  • Petroliferous Area Relevance (IPA)
  • Conclusions
introduction
Introduction
  • Objective
    • To set up an updated database, with mapped zones, containing the relative economical relevance of different regions in Brazil, concerning the oil and gas sector
  • Importance
    • Territorial ordination programs
    • Sedimentary basins relevance for oil industry activities (upstream and downstream)
    • Planning block offers at bid rounds
    • Redirect Agency resources to the study of sedimentary basins
    • Annual revision, based on updated information
development team
Development Team
  • MME/SPG-EPE Agreement: National Zoning of Oil and Gas Resources
  • Team MME/SPG
    • João José de Nora Souto - Secretário-Adjunto de Petróleo, Gás Natural e Combustíveis Renováveis
    • José Botelho Neto - Diretor de Política de Exploração e Produção de Petróleo e Gás Natural
    • Clayton de Souza Pontes - Coordenador-Geral
    • Antônio Henrique Godoy Ramos - Gestor
  • Team EPE
    • Ricardo Nascimento e Silva do Valle - Superintendente de Petróleo
    • Reneu Rodrigues da Silva - coordenação técnica
    • Claudio Bettini
    • Norival Brisola
    • Saulo Pedrinha Guimarães
    • Jefferson Acioli Machado
    • Regina Freitas Fernandes
    • Gildo Gabriel da Costa
    • Marcos Frederico Souza
    • Aldeir Dias Bernardo
methodology
Methodology
  • Database
    • Exploration and production
      • Prepared to support a first mapping relevance of areas concerning upstream activities
    • Downstream
      • Data from the infrastructure of oil & gas downstream industry
    • Reference date:April, 2007
data collection new e p resources
Data Collection: new E&P resources
  • Common knowledge  ANP site
  • Classified information  ANP sheets
    • Data from oil and gas fields
    • Recent petroleum discoveries from areas under evaluation
data collection undiscovered e p resources
Data Collection: undiscovered E&P resources
  • Strategy 1: geological approach using plays
  • Strategy 2: engage university support:
    • GORCEIX Foundation  Northern basins
    • COPPETEC Foundation  Eastern basins
    • FUNDUNESP Foundation  Southern basins
  • Strategy 3: focus on acquired knowledge about the areas, avoiding new geological interpretation
data processing
Data Processing
  • Attributes definition:
    • Mappable
    • Relevant (to the relevance function)
    • Complementary (with relevance for the O&G sector)
  • Three data sets for analysis
    • Areas with undiscovered resourses or potential (1)
    • Area with discovered resources (2)
    • Areas with infrastructure (3)
database processing
Database Processing
  • The attributes defined for the database were inserted into a geographical information system, becoming a set of georeferenced tables which can be visualized as a map
e p database tables
E&P Database Tables
  • Effective basins
    • Effective Basin Area (sq km): Sedimentary basin subset with real chances for petroleum or natural gas accumulations. Can also be defined as the geographical union of their effective plays
    • Absolute Prospectivity (sq km): Prospective area with a regional geologic risk, representing the total area of the prospects weighted by the related subplay chances
    • Relative Prospectivity (%): Ratio between the Absolute Prospectivity and the Effective Area
e p database tables12
E&P Database Tables
  • Sedimentary basins and geographical position
e p database tables13
E&P Database Tables
  • Effective basins (#32):
e p database tables14
E&P Database Tables
  • Effective Plays (#96):
    • Play chance degree
    • Main exploratory condition
      • Established
      • Immature
      • New frontier
e p database tables16
E&P Database Tables
  • Reservoir attributes for each effective play table:
    • Segment depth
    • Lithostratigraphic unit
    • Lithology
    • Chronostratigraphic unit
    • Reservoir chance degree factor
e p database tables17
E&P Database Tables
  • Charge attributes for each effective play table:
    • Source rock lithostratigraphic unit
    • Source rock chronostratigraphic unit
    • Charge chance degree factor
e p database tables18
E&P Database Tables
  • Trap attributes for each effective play table:
    • Cap rock lithostratigraphic unit
    • Cap rock lithology
    • Cap rock chronostratigraphic unit
    • Trap types
    • Trap chance degree factor
e p database tables19
E&P Database Tables
  • Main fluid typeattributes for each effective play table:
    • Natural gas chance factor in case of hydrocarbon discovery
    • Light to medium petroleum chance factor in case of hydrocarbon discovery
    • Light petroleum chance factor in case of light to medium petroleum discovery
    • Expected main fluid type
e p database tables20
E&P Database Tables
  • Effective basins fluid table:
e p database tables22
E&P Database Tables
  • Prospects for each effective play table:
    • Area (sq km)
    • Visibility:
      • Identified
      • Indicated
      • Conceptual
    • Possible localization
e p database tables23
E&P Database Tables
  • Exploratory Blocks: Localization
  • Wells: Localization and results
  • Oil and natural gas fields:
    • Name
    • Localization
    • Main fluid Type
    • Exploration project stage
      • Evaluation
      • Development
      • Production
slide24

Multivariable Area Relevance Function

(Função de Importância Multiargumentos de Área - FIMA)

function construction fima
Function Construction (FIMA)
  • General concept:
    • It is a function to be applied over each studied element area in order to define its relevance (IPA) for the petroleum and natural gas sector
  • IPA = FIMA (AREA)
fima s variable selection
FIMA’s Variable Selection
  • Six variables were chosen based on E&P information, which were applied over the three types of areas defined for the work with their degree of relevance for the oil and natural gas sector

(*) Higher prospectivity for higher values, classified from 1 to 9

fima variables standardization
FIMA: Variables Standardization
  • The relevance of the basin area was classified from 1 to 9 according to the distance from the main information
  • Where:
    • xy: size of the application area (pixel of 1 sq km)
    • Ai (xy): standard value for the arguments in the xy position
    • Pi: relative weight for the argument, considering
    • For this work the weight was 17% for all arguments
ipa hydrocarbon direct evidence
IPA: Hydrocarbon Direct Evidence
  • Hydrocarbon direct evidence
    • Relative distance to the closest
    • well in the basin which has
    • confirmed the existence of
    • hydrocarbons
ipa relative prospectivity
IPA: Relative Prospectivity
  • Relative prospectivity
    • Area of the effective basin
    • with possibility to have any
    • field discoveries
ipa lack of knowledge
IPA: Lack of Knowledge
  • Lack of knowledge
    • Match between the chance degree and the exploratory stage of each play (from 1 to 9 according to the degree of knowledge)
    • The result means the uncertainty of the behavior for the regional geological factors related to the O&G accumulations
    • The higher values for this argument shows the least studied areas in the basins.
    • Areas out of the effective basin got the value 1
ipa exploration activities
IPA: Exploration Activities
  • Exploration activities
  • - Relative distance to the
  • closest exploration block polygon
  • in the basin
ipa production activities
IPA: Production Activities
  • Production activities
    • Relative distance to the
    • closest O&G field polygon in the
    • basin
ipa downstream infrastructure
IPA: Downstream Infrastructure
  • Downstream infrastruture
    • - Distance to the center of the closest
    • downstream facility. For places outside
    • the sedimentary area the range of 5 km
    • was attributed for existent facilities and
    • 20 km to the planned ones
slide35

Petroliferous Relevance Areas

Importância Petrolífera das Áreas

( IPA )

conclusions
Conclusions
  • In this project a georeferenced database was built, with hundreds of mappable attributes, of which some are original, related to the oil and gas sector relevance of any area in the country
  • The results are unpublished and specially important for the Ministry of Mines and Energy
    • It can be improved in other projects with additional information and interpretation
    • It can be used to support Exploration and Production policies related to the National Energy Plan
conclusions38
Conclusions
  • The final map (IPA) from this project allows evaluating the relevance of places greater than 1 sq km for the O&G sector up to the range of 200 miles from the shore line
  • The final map of IPA also shows that most of the country area has some relevance for the O&G sector. Exceptions are some basement areas without infrastructure and sedimentary basins with no potential for oil and gas
  • The basins with higher degree of E&P activities, like most of the offshore basins, are pointed in the maps with higher relevance, as expected
conclusions39
Conclusions
  • Maps updating
    • The dynamics of the O&G sector turns the updating of the database mandatory, in order to keep the maps reliable