Subsurface design considerations for carbon dioxide storage

Autor: Cliff Kratzing, John Roland Wilkinson, Kean-Seng Lee, Robert C. Szafranski
Rok vydání: 2009
Předmět:
Zdroj: Energy Procedia. 1:3047-3054
ISSN: 1876-6102
DOI: 10.1016/j.egypro.2009.02.083
Popis: Over the past three decades the oil and gas industry has developed full-system approaches for safe and cost-effective injection of carbon dioxide (CO2). Projects have been executed successfully that inject into formations spanning a full range of depths, reservoir quality, pressures and temperatures. Injection has been into both aquifers and hydrocarbon bearing intervals. Lessons learned about site selection, storage design and site monitoring are directly applicable to current and future carbon dioxide geosequestration projects. In this paper the focus will be on storage project field experience and simulation-based investigations of plume growth and migration in different geologic settings. Also discussed will be options to optimize well rates and location to maximize the storage volumes of CO2 injection. Safe, efficient and reliable long term storage of CO2 will require knowledge and observance of limits on cap rock fracture pressures, location of formation spill points and maximum rates of injection to mitigate adverse sweep related to gravity override of injected gas. Study outcomes and key design parameters for three different storage scenarios will be discussed. One will be a depleted oil field in an anticline structure connected to a regional aquifer; a second will be storage into a deep and lower quality aquifer underlying a gas field and a third will be assessment of potential storage in a large regional aquifer in pressure communication with active producing fields. By use of specific examples across a range of possible storage scenarios we will illustrate that site specific data combined with detailed dynamic modelling is very important to a complete appraisal of storage site integrity and capacity. The terms corporation, company, affiliate, ExxonMobil, Exxon, Mobil, Esso, our, we and its, as used in this material may refer to Exxon Mobil Corporation, to one of its divisions, or to the companies affiliated with Exxon Mobil Corporation, or to any one or more of the foregoing. The shorter terms are used merely for convenience and simplicity.
Databáze: OpenAIRE