STUDY OF CHANGES IN MICROGRAVITY ANOMALY RESPONSES DUE TO CO2 INJECTION THROUGH RESERVOIR SIMULATION AT A DEPTH OF 620 M
In the CCS (Carbon Capture Storage) project, subsurface monitoring needs to be done properly so that the injected CO2 can be safely stored in the reservoir. One geophysical method that can be used for subsurface monitoring is the gravity method. In its application, a synthetic model was created t...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/81081 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | In the CCS (Carbon Capture Storage) project, subsurface monitoring needs to be done
properly so that the injected CO2 can be safely stored in the reservoir. One geophysical
method that can be used for subsurface monitoring is the gravity method. In its
application, a synthetic model was created that considers depths of up to 620 meters
using a homogeneous model with reservoir simulation parameters obtained from
previous studies. Simulation modeling was carried out using CMG (Computer
Modelling Group) 2021 software. 10. Based on the results of reservoir simulation
modeling with the capacity of the reservoir to hold CO2 is 218.28.236 ????3 and the
injection rate is 4013.4 ????3/day, the injection time in this study requires another 18
years after 20 years of injection so that CO2 can be stored fully. The anomalous
response of microgravity obtained shows an increase as the volume of CO2 injection
increases. Creation of time-lapse microgravity anomaly maps to determine
microgravity anomalies at CO2 injection points after 3 years, 5 years, 10 years, and 20
years with a reservoir depth of 620 m. Weight-lapse anomaly values for the period
2000-2003 January, with a minimum value of 0.01241 ?Gal and a maximum of 2.711
?Gal. Gravity anomaly values for the period 2000-2005 January, with a minimum value
of 0.04587 ?Gal and a maximum of 4.528 ?Gal. Weight-lapse anomaly values for the
period 2000-2010 January, with a minimum value of 2.003 ?Gal and a maximum of
48.97 ?Gal. Weight-lapse anomaly values for the period 2000-2020 January, with a
minimum value of 5.317 ?Gal and a maximum of 64.75 ?Gal. Based on the analysis of
curve patterns, the proposed interval of the gravitational survey station for monitoring
the spread of CO2 in anomalous waves in the period 2000-2003 January was worth 700
m and in the period 2000-2020 January was worth 1600 m. |
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