Vietnam oil and gas reserves Presented by: Bui Duc Quang Drilling and production petroleum batch 53
Vietnam oil and gas reserves
Presented by: Bui Duc Quang
Drilling and production petroleum
batch 53
Main contents
1. A fews Definitions
2. Viet nam oil and gas reserves.
3. Basement rock – extremly special
reservoir.
4. Conclusion.
1. Definitions
A. Petroleum
Petroleum is a mixture of a very large number of different hydrocacbon, the most commonly found molecules are
alkanes (linear or branched), cycloalkanes, aromatic hydrocarbons, or
more complicated chemicals like
asphaltenes.
B. Oil equipvalent
• 1 A merican barrel = 0.15899 cubic meter.
• 1000 tons of natural gas = 1 ton oil
equivelent.
• 1 ton crude oil = 1 ton oil equivalent.
C. Oil recovery factor equations formulas
calculator
• Estimate of recoverable oil (ERO)
• Estimate of in place oil (EIPO)
E. Reserves
2. Vietnam oil and gas reserves
2.
• Basins
of
Vietnam
A. Song Hong basin
• Reserves and
recoverable
resources in the
basin are
estimated about
1,100 MMscmoe
.• Proven gas
reserve is about
250Bscm
(excluded CO2)
• Tien Hai C gas field in Hanoi trough is in
producing, and D14, DongQuan D fields,
long term tests have been carring out in
order to evaluate commercial capability of
these fields.
B. Cuu Long basin
• Reserves and recoverable resources in
Cuu Long Basin are estimated about 820
MMscm tons oil equivalent.
•. Discovered reserves from basement,
Oligocene and Miocene sandstones
reservoirs are approximately 500MMscm
oil equivalent.
• Undiscovered resources is approximately
320 MMscm oil equivalent.
C. Phu khanh basin
• A undrilled basin,
petroleum systems may
be similar to nearby Song
Hong Basin (north) and
CuuLong/Nam Con Son
basins (south)
• The recoverable
resources of this basin is
approximately 400
MMscm of oil equivalent,
about 8% of total Vietnam
resources.
D. Nam Con Son basin
• Oil & gas reserves and recoverable
resources in Nam Con Son Basin are
estimated about 970 MMscm oil
equivalent.
• Discovered reserve is about 250MMscm
oil equivalent, mainly gas.
• Undiscovered resources are
approximately 720 MMscm oilequivalent
E. Tu Chinh Vung May basin
• Total recoverable
resources of the basin
is about 950 MMscm
oil equivalent.
• Due to the lack of
data, this basin need
to be explored to
clarify its petroleum
potentials...
G. Ma Lay - Tho Chu Basin
Malay – Tho Chu Basin map
• Oil & gas reserve and recoverable resources in the Malay – Tho chu basin (the Vietnam part) are estimated about 370 MMscm oil equivalent, mainly in Miocene sandstones (89%).
• Discovered reserve is about 210 MMscm oil equivalent.
• Undiscovered resources is about 160
MMscm oil equivalent.
Summary of total resources in Vietnam
Tertiary basins(up to 12/2005)
• Total Vietnam resources are evaluated
approximately 4,600MMscm oil equivalent ( 3,91billion tons) (gas 55-60%)
• Reserves 1,210 MMscm oil equivalent (650 BCM gas, 560 MCM oil)
.• More than 70 discoveries. In the period 2001-2004: 15 discoveries; incremental reserves 226 MCM (~192 Million tons)oe. 2005: 4 new discoveries.
Vietnam oil reserves good for 30
years
• (Reuters) - Vietnam's current level of
recoverable reserves of crude oil and gas are
enough for another three decades of production.
• "Counting the reserves we have discovered so
far, production can last another 30 years,"
Thang said in the interview, adding
Petrovietnam was expanding exploration to
boost reserves.
HANOI | Sun Jan 24, 2010 9:39pm EST
3. Basement – extremly special
reservoir
• Bach Ho (White Tiger) field is a giant oil
field with recoverable reserves is 01.0-1.4
mmm bbls ( 136 – 190 million tons ).
about 90% of oil was producted from the
basement reservoir, the remaining comes
from Oligocene and Miocene clastics.
• The first oil from basement rock was
producted by Vietsopetro at White Tiger
field..
• No company though that the oil exists in
basement rock.
Main features of basement
reservoir in White Tiger field
• No existing lower zone ( water )
• Fractured- basement reservoir.
Two-dimensional model of the play concept for the
Cuu Long basin
Why has vietsopetro drilled to
basement rock?
• Lost circulation.
• There is very thick cap rock upper the
basement rock.
“You should never use water injection
method to preserve reservoir pressure”
said experts of World Bank
• 4. Conclusion
• Tertiary basins of Vietnam have similar
geological and petroleum features; four of
them have encountered and produced oil
and gas.
• Improvement of oil recovery for producing
fields
• Effective development of marginal fields
• Exploration in deepwater and frontier
areas
References
• Vietnam insitute of drilling technology.
• Petrotimes.
• Pvep.com.vn
Thank you for you attention