Diffuse soil CO2 flux to assess the reliability of CO2 storage in the Mazarron-Ganuelas Tertiary Basin (Spain)

FUEL

卷:114

Article

Rodrigo-Naharro, Julio¹  Nisi, Barbara²  Vaselli, Orlando^3,4  Lelli, Matteo²  Saldana, Raul¹  Clemente-Jul, Carmen⁵  Perez del Villar, Luis¹ 

[1] Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid 28040, Spain

[2] CNR IGG Inst Geosci & Earth Resources, I-56124 Pisa, Italy

[3] Univ Florence, Dept Earth Sci, I-50121 Florence, Italy

[4] CNR IGG Inst Geosci & Earth Resources, I-50121 Florence, Italy

[5] Univ Politecn Madrid, Dept Chem Engn & Fuels, ETS Ingenieros Minas, Madrid 28003, Spain

关键词: Diffuse CO2 flux;    Accumulation chamber;    CO2 geological storage;    Mazarron-Ganuelas Tertiary Basin (Spain);   

DOI  :  10.1016/j.fuel.2013.06.009

来源: Elsevier

【 摘 要 】

In the framework of a global investigation of the Spanish natural analogues of CO2 storage and leakage, four selected sites from the Mazarron-Ganuelas Tertiary Basin (Murcia, Spain) were studied for computing the diffuse soil CO2 flux, by using the accumulation chamber method. The Basin is characterized by the presence of a deep, saline, thermal (similar to 47 degrees C) CO2-rich aquifer intersected by two deep geothermal exploration wells named El Saladillo'' (535 m) and El Reventon'' (710 m). The CO2 flux data were processed by means of a graphical-statistical method, kriging estimation and sequential Gaussian simulation algorithms. The results have allowed concluding that the Tertiary marly cap-rock of this CO2-rich aquifer acts as a very effective sealing, preventing any CO2 leak from this natural CO2 storage site, being therefore an excellent scenario to guarantee, by analogy, the safety of a CO2 storage. (C) 2013 Elsevier Ltd. All rights reserved.

【 授权许可】

Free