Experimental Investigation of CO2 Storage Parameters for Deep Saline Aquifers

Abstract

Abstract The storage of CO2 is controlled by a variety of parameters. While it is impossible to quantify or predict their distribution across the inter-well space their accurate measurement in known points (wells and core) are obviously beneficial for making more accurate forecasts. While all the requirements for storage characterization are stated clearly in guiding documents (as in ISO 27914 or DNV RP-J203) and national regulations and codes the specifics as to how to approach lab studies are not included. Therefore, in order to ensure the safety and operational capability of a CO2 storage project a part of lab studies design is proposed with corresponding results and their interpretation. Since the main goal of these projects is to reduce greenhouse gases emission to alleviate climate change and consequently they are bound to be verified across the world an attempt to come to universally accepted approach seems justified and necessary. CO2 storage is influenced by various parameters, which are difficult to quantify or predict in the inter-well space. However, their precise measurement in known locations (such as wells and core samples) can enhance the accuracy of storage forecasts. Although the general requirements for storage characterization are clearly defined in guidance documents (e.g., ISO 27914 or DNV RP-J203) and national regulations and standards, the specific methods for conducting laboratory studies are not specified. Therefore, this paper proposes a partial design of laboratory studies for a CO2 storage project, along with the results and their interpretation. The main objective of these projects is to mitigate climate change by reducing greenhouse gas emissions, which requires global verification. Hence, developing a universally accepted approach is both reasonable and necessary.