Sequestration of CO_2 in a depleted sandstone oil reservoir: results of a fielddemonstration test

摘要

Injection of CO_2 in depleted oil reservoirs is one of the most direct carbon management strategies. We present results of the first geologic CO_2 sequestration field test in the US. The main objectives of the project are to monitor and predict migration and fate of CO_2 injected into a depleted sandstone oil reservoir and to better understand CO_2 sequestration related processes. The field test was centred around injection of about 2100 tonnes of CO_2. Geophysical monitoring surveys, laboratory experiments and numerical simulations were performed in support of the field test. Results show that the response of the west Pearl Queen reservoir during the field test was significantly different than the predictions based on pre-injection characterization data.