Second Webinar (CO2 Sequestration: From Static to Dynamic)

A pre-Event of the 5th ISPG Research Forum 2022 was held on February 25, 2022. Exhibiting two remarkable speakers for University Dr. Eng.Ir. Very Susanto (ITB) and for industry Gareth Williams (Halliburton). The talk was moderated by Debby Halinda, S.T., M.T., from Pertamina.

The first talk (Dr. Eng.Ir. Very Susanto -ITB) was discussing about carbon cycle and human activities cause the increment of green house gas (GHG) in the atmosphere which is related to the global warming.

There are several methodologies to reduce the GHG concentration in the atmosphere, one of them is CCS (Carbon capture storage) which is storing the CO2 using geo-sequestration process. This methodology was chosen due to several reason, such as: proven technology, potential for large CO2 storage capacity, fossil fuels still can be used. In Indonesia the storage candidates can be selected from depleted oil and gas reservoirs.

The key of CCS success can be achieved by measuring, monitoring and verification (MMV) therefore the CO2 can be storage permanently without any leakage and environmentally safe. Several study cases were presented during presentation to give the audience the illustration of this process.

The second presenter (Gareth Williams – Halliburton) presented the subsurface modelling for CCS. Prior discussing the modeling, Gareth talked regarding 3 critical factors in assessing subsurface CO2 storage site. The factors are capacity, injectivity and containment. To investigate those critical factors several steps can be done. First step is investigating geology and geophysical data that will continue with second step which is building a static model. The third step is doing dynamic simulation incorporating CO2 injection and geomechanic analysis to know the storage capacity. The last one is monitoring that can be involving time-lapse seismic (e.g., 4D seismic) and the monitoring data can be use to update the model again and again. Figure below shows the modeling cycle in CCS.

The talk was closed with interesting Q&A session.

 

CC : ISPG Research Forum 2022