Application of multi spectral data of ASTER in oil and gas

Report
Takatoshi Namikawa, Masatane Kato (ERSDAC)
Yoshimitsu Negishi (Mitsubishi Material Techno)
Takumi Onuma (JGI Inc.)
1. Introduction
2. What is asking for multi spectral data
3. Case study in Minhe basin, China
4. Case study in Tarim basin, China
5. Summary
1. Introduction
Oil, Gas = fluid
Exploration oil and gas = Find or estimate traps
Interests are ……
much in shape of geological structure,
less in spectral information.
1. Introduction
Anticline
Anticline
Anticline
2. What is asking for multi spectral data
ASTER
VNIR
3 bands
SWIR
6 bands
TIR
5 bands
If we can get ……
1. Distribution trend of good source rock
2. Distribution pattern of good reservoir
it would be helpful for oil and gas exploration.
3. Case study in Minhe Basin, China
3. Case study in Minhe Basin, China
Objective 1; Distribution trend of good source rock
Principle; Good source = High TOC content
High TOC rock
↓
dark in VNIR
(Experimental)
TOC: Total organic carbon (%)
3. Case study in Minhe Basin, China
Poor
Good
Poor
Result; North-western to central part is in a fair way
3. Case study in Minhe Basin, China
Objective 2; Distribution pattern of good reservoir
Principle; Good reservoir = High porosity sandstone
= High SiO2 content
Band 10, 11;
positively correlated
TIR Band10
TIR Band11
-0.00007075
-0.0000707
TIR Band12
TIR Band13
-0.0000708
-0.00007085
-0.0000709
0
50
100
SiO2 Content of rock samples (%)
ASTER TIR
Thermal logarithmic residual value
ASTER TIR
Thermal logarithmic residual value
-0.0000707
TIR Band10
TIR Band11
-0.00007075
TIR Band12
TIR Band13
-0.0000708
y = 2E-09x - 7E-05
-0.00007085
y = 2E-09x - 7E-05
-0.0000709
0
10
20
30
Porosity of rock samples (%)
40
3. Case study in Minhe Basin, China
ASTER TIR B11 DN value
Result; Central part is in a fair way
3. Case study in Minhe Basin, China
Focusing
quality
Structures
in areservoir
fair wayrock
Focusingfrom
from
source
quality
4. Case study in Tarim Basin, China
4. Case study in Tarim Basin, China
Objective; Distribution of good source rock
Upper Ordovician;
Thin, but excellent source rock
4. Case study in Tarim Basin, China
Kalpin Uplift; Duplicated of thrust sheets
4. Case study in Tarim Basin, China
VNIR 123
SWIR 678
TIR 11 12 14
Depend on low spatial resolution, SWIR and TIR image
looks like out of focus
4. Case study in Tarim Basin, China
VNIR 123
Simulated Reflectance
SWIR 678
Simulated Emissivity
TIR 11 12 14
Devonian
SiO2 rich
Dolomite
Limestone
Give the spatial resolution of VNIR to SWIR and TIR
4. Case study in Tarim Basin, China
SWIR 678
5 km
SWIR 678
P1
S1
O5
O1
O3
O2
O4
4. Case study in Tarim Basin, China
SWIR 678
More detail identification
of lithological unit can be done
in Ordovician.
P1
Excellent source rock can be traced
S1
O5
O1
O4
O22
O2 1
limestone
shale
siltstone / mudstone
O5
O4
O3
O2
limestone
O1
dolomite / limestone
O1
O3
O2
Landsat5 TM
Terra ASTER
1. Multi spectral data of ASTER has not been
fully used in oil and gas industry.
2. It can contribute to basin study, in particular
to get distribution trend of source rock and
reservoir quality.
3. Simulated reflectance/emissivity processing
is a powerful tool for ASTER data to trace
thin but important bed.
ERSDAC, Mitsubishi Material Techno, JGI Inc.

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