SOUTHERN AND CENTRAL ALTIPLANOBOLIVIA EXPLORATORY BLOCKS

Stratigraphic ColumnDetailed Seismic

Location Map

Coipasa

Corregidores

Seismic and Wells Image

Geological Cross Section - Coipasa

Petroleum System

Geological Cross Section - Corregidores

Seismic – Stratigraphic Model

Petroleum system developed in central and southern Altiplano basin, is made up by source rocks of “El Molino and Chaunca” Formations (Cretaceous) reservoir rocks of the “Tambillo” (Tertiary) and Seal Rock in the Potoco y Santa Lucia Fm. (Terciary). However, Silurian, Ordovician and Devonian rocks, could also be involved in hydrocarbons generation.

Anticlines with roll over in Cretaceous and Tertiary rocks are common, as in Vilque, Salinas de Garci Mendoza structures ,etc. According to the structural domain type, Upper Oligocene reverse anticlines can be estructural traps for further exploratory acitivities. (By: Araníbar & Martinez, 1990).Bolivian “Altiplano” Basin has been partially investigated. Vilque well has shown trap conditions, seal rock, reservoir rock and oil migration traces. Consequently, the “Altiplano” is likely to contain hydrocarbons where Cretaceous rocks are preserved.

Structural model is represented by pre-rift extensional Faults (Upper Paleozoic) that were formed by tectonic inversion during the Andean compression. As per, the last geological reports, an atractive area constitute the region called Fault Thrust Belt “Faja Plegada y Corrida de Huarina” which is located near to the Eastern Cordillera.

Conclusions

2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 22000 24000 26000 28000

2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 22000 24000 26000 28000

-360

0-3

200

-280

0-2

400

-200

0-1

600

-120

0-8

00-4

00

-3600-3200

-2800-2400

-2000-1600

-1200-800

-400

0 2000 4000 6000 8000 10000m

1:25600

2587-28 Line

SAN VICENTE

POTOCOEL MOLINO

RIFT

PRE-RIFT BASEMENT

FOREDEEP

TRANSITION

AGE FORMATION THICK.m.

LITOLOGY SOURCEROCK

RESERVOIR

POTOCO

OLI

GC

.

SANTA LUCIA

MAURI / LOS FRAILES

NE

OG

N.

U P

P E

R

200 - 500

MIO

CN

.

EL MOLINO

10 - 100

DE

VO

N.

TARAPAYA

CONDO

P A

L E

O G

E N

E

> 100

10 - 200

> 400

EO

CE

NE

SIL

UR

IAN

O

RD

. N

OT

DE

F.C

R E

T A

C E

O U

S

LOW

ER

250 - 1.000

SU

P.

CAYARA

500 - 2.800

150 - 500

200 PALC.

CHAUNACA

300

350

300

AROIFILLA

MIRAFLORES

LOW

ER

> 900

LLA

ND

OV.

LU

DLO

VN

.

S. VICENTE-TAMBILLO

BELEN

ICLA

VILA VILA

NOT DEFINED

NOT DEFINED

SEAL

BENI

SANTA CRUZ

LA PAZ

POTOSI

PANDO

ORURO

TARIJA

COCHABAMBA

CHUQUISACA

&

!(

!(

!(

!(

!(

!(SLC-X1

VLQ-X1

TLD-X1

SGM-X1

CPQ-X1

CNI-X1Chita

Pazña

Ocuri

Tahua

PorcoLLica

Uncia

Uyuni

Poopo

Quehua

Coroma

Tomave

Chaqui

Corque

Sabaya

Catavi

Tupiza

Atocha

Pocoata

YocallaCoipasa

Cº Piga

Ollague

Huanuni

Totoral

Sevaruyo

Chayanta

Carangas

Chiguana

El Choro

Pulacayo

Siglo XX

Caiza "D"

La Rivera

Antequera

Andamarca

Tacobamba

Rio Mulato

Tinguipaya

Challapata

San Agustin

Bella Vista

Huachacalla

Portugalete

Colquechaca

Tusqui Pampa

Cieneguillas

Todos Santos

San Cristobal

Cruce VentillaPampa Aullagas

Pisiga Bolivar

Santiago de Huari

San Pablo de Lipez

San Pedro de QuemezSantiago de Cotagaita

Santuario de Quillacas

Villa Martín Colcha "K"

Salinas de Garci Mendoza

Río

Barra

sRío Sajama

Río Laca Jahuira

Río Capilla

Río Pilcomayo

Río Chayanta

Qda. Kkotkkota

Río Tupiza

Potosí

600000,000000 700000,000000 800000,000000

7700

000,0

0000

078

0000

0,000

000

7900

000,0

0000

0

POTOSI

ORURO

Salar deCoipasa

LagoPoopó

Salar de Uyuni

COIPASA

CORREGIDORES

Altiplano

Madre de Dios

LlanuraBeniana

SubandinoNorte

LlanuraChaqueña

SubandinoSur

Pie deMonte

Pantanal

ARGENTINA

PARAGUAY

BRASIL

PER

UC

HIL

E

BRASIL

&

&

&

&

&&

&

&

& &&

&

&

&

&

!(

!(

!(

!(

GARCIMENDOZA

SANTA LUCIA

SLC-X1

TLD-X1

SGM-X1

CPQ-X1

COIPASA

10065-60

2045-27

10081-60

2119-SO

2011A-27

2003-27

2002-27

2005-27

10080-60

2004-27

2012A-27

2010A-27

2537-28

10064-60

2008A-27

10062-60

2518-28

2018

-27

2010

-27

2500-28

10061-60

2048-27

2030-27

2027-27

2007A-27 2046-27

2032-27 2033-27

2006-27

2118-SO

GP

9403-EX

2001-27

2117-SO

2009A-27

10063-60

2028-27

2029-27

10060-60

2105-SO

2009-27

MA9203

-MR

2019

-27

2031-27

2007-27

2024-27

2034-27

2012

-27

2036

-27

2103-SO

2039-27

2040-27

2531-28

2008

-27

2051-27

2526-2820

15-27

2050-27

2035-27

2519-28

2047-27

ALTI-4-PH

ALTI15-P

H

2539B-28

2016

-27

2006A-27

2021

-27M

A920

4-M

R

GP9410-EX

2004A-27

GP9408-EX

2522-28

2017

-27

2011

-27

2056

A-27

2049-27

2511-28

GP

9405-EXGP9412-EX

2526A-282529A-28

2536-28

2041-27

2500B-28 2500A-28

2014-27

2529B-28

2532-28

Escara

Corque

Coipasa

Chipaya

AndamarcaHuachacalla

Salinas de Garci Mendoza

&

&

&

&

&

&

&

!(

!(

COLCHANI

CASA GRANDE

VLQ-X1

CORREGIDORES

1001

6-60

1511-25

2588

-28

2551-28

2593-28

2590-28

2589

N-2

8

2550-28

10023-60

2594-28

10010-60

2585-28

10008-60

10007-602570-28

2552-28

1530-25

1509-25

25107-60

2549-28

2587-28

2586-28

2561

-28

2584-28

25107-28

1001

5-60

1552-25

1517-25

10009-60

10011-60

1549-25

10012-60

2562

-28

1508

-25

1533-25

2560

-28

25106-28

25105-28

2591-28

1547-25

1545-251542-25

1563-25

1543-25

1520

-25

1510-25

1515-25

10004-60

2548-28

1505-25

2592A-28

10022-60

2582-28

2581-28

1002

4-60

1526

A-25

1525-25

1544-25

1540-25

1565-25

1522-25

1526

-2515

48-25

10001-60

Uyuni

Pulacayo

San Cristobal

General Data

Basin Type

Basin Area 60.000 km2

Available Blocks

Drilled Wells

2D - Seismic 2D (130 lines)

Source Rock

LJY-X1, TLD X-1, SLC-X1, CPQ-X1, SGM-X1, CNI-X1A, VLQ-X1

Coipasa 515,000.00 Ha, and Corregidores 655,000.00 Ha.

Molino Fm, Chaunaca Fm

Intermontana

Geological Province Altiplano

Hydrocarbon Type Oil and Gas

Reservoir Rock Tertiary Age Rocks San Vicente and Tambillo Fm.

Seal Rock Tertiary Age Rocks Santa Lucía Fm. Pocoto Fm.

17 Coipasa

Nº Blocks

515 000

18 Corregidores 655 000

Area (Has)

ROCK UNITS

SOURCE ROCKS

SEAL ROCKS

RESERVOIR ROCKS

OVER COVERT

TRAP FORMATION

GEN-MIG. ACUM

PRESERVATION

CRITICAL MOMENT

GEOLOGICALTIMEMESOZOIC

200 150 70100 60 50 40 30 20 10

QTR

L E M L E L PAL EOCENE OLIG MIOCENE PP

CENOZOIC

TERTIARY PETROLEUMSYSTEM EVENT

EROTION

EROTION

10 Km.

OLLERIA

VLQ-X1INES

1

2

34

6

1

55

4

3

W E

2

3

1 4

5

LEYEND

Miocene - Pliocene

Silurian-Devonian

Cretaceous

Oligocene - Miocene

Eocene - Oligocene 6 Cambrian -Ordovician

Van Krevelen Diagram (HI vs OI)

EL MOLINO

Oxigen Index (OI)

Hyd

roge

n In

dex

(HI)

Oxigen Index (OI)

TYPE III (GEN. GAS)

TYPE I (GEN. OIL)

TYPE II (GEN. OIL/GAS)

CHAUNACA

TYPE I (GEN. OIL)

TYPE II (GEN. OIL/GAS)

TYPE III (GEN. GAS)

12

8

9

7

1

2

3

45

6

10

11

RIFT ALTIPLANICO RIFT DE MARAGUA

Km.

1

2

3

4

5

6

7

0

Vertical Scale : AproximatelyHorizontal Scale: Schematic

W EAndamarca. DatumMizqueSevaruyo MaraguaCarata

SILURICO

DEVONIAN

ORDOVICICO

CAMBRICO

R

PR