UKCCSRC Call 2 project poster: Quantifying Residual and Dissolution Trapping in the CO2CRC Otway Injection Site, CSLF Call project poster reception, London, 27.06.16

This poster on the UKCCSRC Call 2 project Quantifying Residual and Dissolution Trapping in the CO2CRC Otway Injection Site was presented at the CSLF Call project poster reception, London, 27.06.16. Grant number: UKCCSRC-C2-204. For a wide adoption of the Carbon Capture and Storage (CCS) technology, it is essential to provide a commercial operator with a reassurance of the predictability of their proposed site for CO2 storage through geochemical monitoring techniques. This is particular important for assessing residual and solubility trapping, which are more secure than structural trapping of free-phase CO2. It is difficult to quantify how much CO2 is stored by residual and solubility trapping across an entire storage site. Hence, there is a need to develop a test which can be performed at a single injection well during assessment of a potential site for CO2 injection. CO2CRC, one of the world-leading CCS research organisations, conducted the Otway Stage 2B Extension residual saturation test in December 2014 to determine residual trapping at their Otway test site in Victoria, Australia, using a single-well field setting. In direct collaboration with CO2CRC and other global research institutions (CSIRO Energy, University of Melbourne, Simon Fraser University, Lawrence Berkeley National Laboratory), we use water and gas geochemistry to establish the fate of CO2 injected into the Paaratte Formation at the Otway test site. More specifically, we study the application of oxygen isotopes and noble gases to reconstruct levels of residual trapping of CO2.

本海报介绍了英国碳捕获与封存研究委员会（UKCCSRC）第二阶段项目中的量化残余和溶解捕集研究，该研究在2016年6月27日的伦敦CSLF项目海报展会上展出。项目编号：UKCCSRC-C2-204。为了广泛推广碳捕获与封存（CCS）技术，确保商业运营商对其拟建二氧化碳储存场地的可预测性至关重要。这在评估残余和溶解捕集方面尤为重要，因为它们相较于自由相二氧化碳的结构捕集更为安全。难以量化整个储存场地中通过残余和溶解捕集储存的二氧化碳量。因此，有必要开发一种在评估潜在二氧化碳注入场地时，可在单个注入井中进行的测试。作为全球领先的CCS研究机构之一，CO2CRC于2014年12月对其位于澳大利亚维多利亚州的Otway测试场地进行了二期B扩展残余饱和度测试，以确定残余捕集。我们与CO2CRC及其他全球研究机构（包括CSIRO能源、墨尔本大学、西蒙弗雷泽大学、劳伦斯伯克利国家实验室）直接合作，运用水和气体地球化学方法，确立在Otway测试场地注入帕拉特特地层中二氧化碳的命运。更具体地说，我们研究了利用氧同位素和稀有气体来重建二氧化碳残余捕集水平的应用。