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Agencia Nacional de Hidrocarburos Subdirección Técnica Colombian Hydrocarbon Opportunities. Libertad y Orden. November 2004. Agenda. Colombian Overview Offshore & Onshore Exploration Opportunities Caribbean and Pacific Basins. Key Points . Large offshore acreage with high potential

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Agencia Nacional de Hidrocarburos Subdirección Técnica Colombian Hydrocarbon Opportunities

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Agencia Nacional de HidrocarburosSubdirección TécnicaColombian Hydrocarbon Opportunities

Libertad y Orden

November 2004

Agencia Nacional de Hidrocarburos


Agenda

  • Colombian Overview

  • Offshore & Onshore Exploration Opportunities

  • Caribbean and Pacific Basins

Agencia Nacional de Hidrocarburos


Key Points

  • Large offshore acreage with high potential

  • Many positive hydrocarbon indicators

  • Proven gas production in Caribbean basin, with untapped oil potential

  • Large prospective structures

  • Increasing exploration activity

Agencia Nacional de Hidrocarburos


Geographical Advantages

Panama Canal

Pacific Ocean

Agencia Nacional de Hidrocarburos


Colombian Sedimentary Basins

Agencia Nacional de Hidrocarburos


Land Map

Agencia Nacional de Hidrocarburos


Caribbean Basin

Agencia Nacional de Hidrocarburos


E&P Companies

Exxon-Petrobras-Ecopetrol

Chevron-Texaco

Ecopetrol

Hocol

Drummond

Oxy-Repsol-Ecp.

Adulis-Solana

Stratuspacific oil

Oxy-Repsol-Ecp.

Agencia Nacional de Hidrocarburos


Seismic Programs20.000 km approx.

Agencia Nacional de Hidrocarburos


Caribbean Sea

Exploratory Wells

Agencia Nacional de Hidrocarburos


TAYRONA BLOCK

2000 m

Bathymetry

Agencia Nacional de Hidrocarburos


Caribbean Offshore Basin

  • PETROLEUM POTENTIAL:

  • Source Rock: UpperCretaceous & Oligocene age.Proven byGas production, shows and seafloor samples (oil).

  • Reservoir Rocks: Tertiary Sands of Cratonic (non-volcanic) origin delivered by major rivers.

  • Seals: Thick Upper Oligocene & Middle Miocene shaly units.

  • Play Types: Structures associated to oblique subduction. Accretionary prism with thrust and transform faults.

  • GENERAL ISSUES:

  • Water Depth: From shore to 2,000 meters.

  • Transport Facilities: There is an oil shipping port and two gas pipeline systems

Agencia Nacional de Hidrocarburos


Gas Fields & Shows in Wells and Piston Cores

Agencia Nacional de Hidrocarburos


Piston core locations

Agencia Nacional de Hidrocarburos


50 Km

Piston Core Data

Modified from Amoco, 1998

Agencia Nacional de Hidrocarburos


Petroleum

System

AGE FM Th

RESERVOIR SEAL SOURCE ROCK

LITHOLOGY

Agencia Nacional de Hidrocarburos


Colombia CaribbeanCretaceous Source Rocks

  • Oil-prone Cretaceous source rocks (2 – 14 % TOC, average 5.6%). Type II, Hydrogen Index between 39 and 1164 mg/g, abundant oil seeps in the San Jacinto Foldbelt

  • Oil-prone Cretaceous source rocks (2 – 15 % TOC) on Caribbean oceanic crust in Costa Rica

  • 700 km of the Cretaceous Caribbean Plate has underthrusted the NW Colombia accretionary prism, potentially yielding a significant hydrocarbon charge

Agencia Nacional de Hidrocarburos


Colombia CaribbeanOligocene Source Rocks

  • 2-3% TOC in the Onshore Sinu Foldbelt and Plato/San Jorge Basins (oil & gas-prone)

  • Live oil found in piston cores was typed like Oligocene (BP 1993 & Texaco 1999)

  • The seabed coring data indicates biogenic and thermogenic gas presence

  • Biogenic gas originated from upper Oligocene, Miocene and Pliocene source rocks (Northeast Fields)

Agencia Nacional de Hidrocarburos


Oligocene Reservoirs (Sinu Fold Belt)

  • Quartz Sand (75% Qz), fine to medium grained sandstones and some conglomeratic sandstones

  • Porosity between 5% to 15%, average 12%; good permeability; medium to well sorted.

  • Turbidites, channels and submarine fans of considerable extension.

  • Oligocene outcrops with thickness of 1200 feet of sandstones

Agencia Nacional de Hidrocarburos


Fluvialsedimentation

From Tectonic Analysis, 1998

Tectonic Framework-Upper Miocene/Pliocene

Agencia Nacional de Hidrocarburos


Accretionary Prism – Line BP-SC-93-22

NW

SE

105 km

Pleistocene

Pliocene

Miocene

Oligocene

Middle Eocene

Cretaceous

Oceanic Basement

Top of Oil Window

Top of Gas Window

Structural Model

Agencia Nacional de Hidrocarburos


Line BP-SC-93-22

NW

SE

Agencia Nacional de Hidrocarburos


SE

NW

Gas Chimney

Toe of Prism

2 sec

Line SAC-99-F13

4 sec

6 sec

2000 m

Vertical Exaggeration ~ 2X

Agencia Nacional de Hidrocarburos


2 sec

4 sec

6 sec

6 Km

Line SAC-99-G23

Agencia Nacional de Hidrocarburos


South Caribbean Potential Leads

Agencia Nacional de Hidrocarburos


6

7

2

3

5

1

4

1

Offshore Colombia-Play Fairways

  • Oligocene - Miocene Ss involved in fault related anticlines

  • Slope fansSsin low amplitude folds

  • Pliocene - Pleistocene deltaic Ss with biogenic gas

  • Oligocene - Miocene delta/fans and pull-apart basins

  • Oligocene - Miocene Ss at horstblock on strike-slip faulting

  • Miocene - Pliocene Ss in low/moderate amplitude anticlines

  • Oligocene - Miocene Ss at roll-over anticlines. Upper Miocene shoreface Ss stratigraphic traps

Agencia Nacional de Hidrocarburos


Caribbean Sea

Caño Limón - Coveñas

Installed Capacity : 250,000 BOD

OCENSA Pipeline

Installed Capacity : 600,000 BOD

Coveñas

Venezuela

Ayacucho

Orú

Caucasia

Toledo

Samoré

Caño Limón

Banadia

Gasoducts

Vasconia

El Porvenir

La Belleza

Oleoducts

Cusiana-Cupiagua

Miraflores

Major Pipelines

Agencia Nacional de Hidrocarburos


Conclusions (i)

  • Government highly interested in promoting upstream activity

  • New flexible contract

  • Large offshore acreage with high potential

  • Available pipeline infrastructure with spare capacity

  • Proximity to the Central and North American markets. Accessibility from / to Caribbean ports

Agencia Nacional de Hidrocarburos


Conclusions (ii)

  • Oil & Gas prone basin

  • Proven gas producing basin, with untapped oil potential

  • Many positive hydrocarbon indicators

  • Large regional structures

  • Tertiary prospectivity

  • Optimal petroleum system

  • Multiclient 2D Seismic currently being acquired (3800 Km, Offshore Caribbean, rec. length 18 sec)

Agencia Nacional de Hidrocarburos


Conclusions (iii)

  • Increasing exploration activity in the area

  • Free geological information

Agencia Nacional de Hidrocarburos


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