BOLIVIA EXPLORATORY BLOCKS
BOOMERANG-LLANURA BENIANA Location Map
i
re Río Secu
BENI
General Data
nco Urubicha
Río Ibare
Río
Us eu ta
8200000
PERU
Río Ch ore Río
VRL- X1
Villa TunariShinahota Chimore
Santa Cruz
Potosí
SUBANDINO SUR
COCHABAMBA
Río
Santa Rosa del Sara
Saj
ta
Blocks
Area (Has)
63
Litoral
212 500
85
El Chore
262 500
137
2D - Seismic
7213 (Km)
Source Rock
Silurian (El Carmen Fm.) Devonian (Robore / Limoncito Fm.)
Reservoir Rock
Devonian (Robore Fm) Tertiary (Petaca Fm.) Cretaceous (Ichoa, Yantata, Cajones)
Mateo Comarapa
Saipina
Seal Rock
Tertiary (Yecua)
Traps
Stratigraphic and Structurals
Hydrocarbon Type
Gas and Condesate
Cruz
&& Porongo
Cotoca
La Guardia Palmar del Oratorio El Torno
án Ju
Omereque
San
jta Pa
Mizque
SANTA CRUZ Santa
Río
ío
8000000
R
Vila Vila
Toro Toro
Mataral
Mairana
Angostura (Bermejo)
Samaipata
Aiquile
200000
Nº
Pojo
ue izq M
Ca ine
San Juan de Yapacani Buena Vista
tu Suru Río
Río
Sacabamba
Litoral, El Chore
Drilled Wells
Gral. Saavedra
La Belgica Epizana Pocona Totora C
Available Blocks
Guabira Portachuelo Montero
Villa G BuschSan Carlos
Vacas
Tacachi CuchumuelaAlalay
Río
PFD- X1
Mineros
Warnes
Paracaya Punata Arani Toko
ARGENTINA
847 500 (Has)
CHN-X1
EPT-X1
Fernandes A.(Puesto Fernandes)
Tiraque
PARAGUAY
Tarija
s
Puerto Grether
Colomi Aguirre &
SANTA CRUZPiray
SRB- X1
Valle Hermoso SJT- X1
Ich ilo
& &
Ivirgarzama
IVZ- X1
Tablas Monte
Río
CHACO
Río San
&
Sucre
ALTIPLANO
PANTANAL
PIE DE MONTE
8100000
Cochabamba
Pa ila
CLV-X1
Río
acani
&
Oruro
EL CHORE
Pto. G. Villarroel
Chipiriri
&
blo
La Paz
X1
Pa
Villa 14 de SeptiembreTDSEterazama
Río Yap
LITORAL
Isinota
&
n Sa
Trinidad
BENI
Río
boro
&
SUBANDINO NORTE
Foreland
Available Area
s
Isi Río Puerto Patiño
Yotaú
ila Pa
MADRE DE DIOS
Paila s
Río
BRASIL
Río
Río
Cobija
CHILE
ni ca pa Ya
&
Basin Type San Pablo Ascención de Guarayos
ío
BRASIL
R
Icho a
Río Chap are
Río
Tija mu
ch
Río Bla
RE MAMO RIO
BENI Pto. San Lorenzo
300000
400000
500000
Seismic and Wells Image
Truncation Sedimentary Wedge Boomerang - Llanura Beniana SW
MIOCENE UPPER OLIG.
CARBONIF. JURASSIC
K.
PETACA CAJONES YANTATA ICHOA
NEOGENE
YECUA
MAAS
CHACO
FORMATION
PG.
AGE
SOURCE ROCK
RESERVOIR
SEAL
TARIQUIA
YECUA PETACA
TRICH
NE
CAJONES YANTATA ICHOA
NOT DEFINED
LIMONCITO
HUAMAMPAMPA
SANTA ROSA
IQUIRI
HUAMP. LIMONCITO ICLA
LOWER
ROBORE
DEVONIAN
ICLA
BRAZILIAN SHIELD
MEDIUM
UPPER
IQUIRI LOS MONOS
S. ROSA
SILURIAN
EL CARMEN
LUDLOVN.
Migration is caused by strong regional slope, and the presence of good reservoir rocks in stratigraphic traps (wedging) and structural.
ROBORE
KIRUSILLAS EL CARMEN
KIRUSILLAS CANCAÑIRI
ORDOVIC.
Constitutes the basin edge of the most of Phanerozoic sequences, witch gives an imposing petroleum interest due to the presence of good source rocks.
SAN BENITO DETACHMENT LEVEL
SAN BENITO
BASEMENT
El Chore 19 - PH Line Hydrocarbons evidence
8000
12000
16000
20000
24000
28000
32000
36000
40000
44000
56000
52000
56000
60000
64000
-1600
CAJONES YANTATA
-2400
-2400
ICHOA
-3200
SILURIAN-ORDOVICIAN -3200
CAMBRIAN
-4800
-4800
-4000
BASEMENT
-4000
Geochemical analysis determines hydrocarbons generation migration pulse originated in the Subandean belt, filling structural and stratigraphic traps.
52000
YECUA
PETACA
-1600
Due to Litoral and El Chore has the same stratigraphic geology characteristics, are placed in the Boomerang area, which has oil and gas discoveries for instance, PATUJUSAL, SURUBI, and LOS CUSIS fields, affirming the existence of an active petroleum system.
48000
-800
-800
4000
4000
8000
12000
16000
20000
24000
28000
32000
36000
40000
44000
48000
0
60000 2000
4000
64000 6000
8000
10000m
66000
68000
70000
66000
68000
70000
1:50000
Cross Section Boomerang - Beni Plain
Seismic interpretation shows structural configuration of lower Paleozoic, Cretaceous and Tertiary, showing a well-defined structural uniformity forming monoclines with NW-SE direction and SW dip. There is a typical angular unconformity between the Paleozoic (Devonian-Silurian) and Cretaceous, constitutes erosional surfaces beveling Devonian and Silurian sediments on the basement, which implies truncation producing a regressive onlap.
Litoral 25 - PH Line 10000
12000
14000
16000
18000
20000
22000
24000
26000
28000
30000
32000
34000
36000
38000
40000
42000
44000
46000
48000
50000
52000
54000
56000
58000
60000
62000
64000
58000
60000
62000
64000
-800
-800
-400
-400
8000
YECUA
-1200
-1200
PETACA
-1600
-1600
CAJONES YANTATA
-2000
-2000
-2400
-3200
-2800 -3200
-2800
Hydrocarbon Generation, Migration Map
-2400
ICHOA
SILURIAN
-4400
-4400
-4000
-4000
-3600
-3600
ORDOVICIAN
BASEMENT
-4800
-4800
8000
10000
12000
14000
16000
18000
20000
22000
24000
26000
28000
30000
32000
34000
36000
38000
40000
42000
44000
46000
48000
50000
52000
54000
56000
0
2000
4000
6000
8000
10000m
1:50000
Kerogen Type - Van Krevelen Diagram El Carmen
Roboré
Oil and Gas Oil Migration
GAS ZONE
TYPE II (GEN. OIL/GAS)
Hydrogen Index (HI)
Oil
Hydrogen Index (HI)
0,
OIL ZONE
TYPE I (GEN. OIL)
TYPE I (GEN. OIL)
INMATURITY ZONE
TYPE II (GEN. OIL/GAS)
Gas Migration Oil Zone Top Gas Zone Top
TYPE III
Oxigen Index (OI)
TYPE III
Oxigen Index (OI)
Conclusions Source Rock: Silurian shales (El Carmen Formation) and Devonian (Roboré Formation) have 1 to 2% TOC, and are thermally mature (0.7-1.3% Ro). Generation-Migration: In Fold thrust belt the hydrocarbons were generated and migrated during the Miocene-Pliocene age to foothills and Foreland area. Rock Reservoir: Silurian sandstones (El Carmen Formation), Devonian (Robore Formation), Cretaceous (Ichoa, Yantata and Cajones Formations) and Tertiary (Petaca Formation) have high porosity and permeability values. Seal Rocks: Devonian shales, and Tertiary (Yecua Formation) are good seals. Trap: The main structural-stratigraphic traps are due to soft folds wedging and Paleozoic sequences on the basement.