Non-isothermal flow of carbon dioxide in injection wells during geological storage

2008 ◽  
Vol 2 (2) ◽  
pp. 248-258 ◽  
Author(s):  
M LU ◽  
L CONNELL
Author(s):  
José Francisco ALENZA GARCÍA

LABURPENA: Teknologiak aurrera egin ahala ingurumenean sortzen diren arriskuen kudeaketa juridikoa erronka zaila izaten da legegilearentzat. Ikusi besterik ez dago zer ahultasun dituen karbono dioxidoaren biltegiratze geologikoari buruzko abenduaren 29ko 40/2010 Legeak, arlo horretako arautegi nagusia denak. Lan honetan, ahultasun horietako batzuk lantzen dira: adibidez, gaiari buruzko berariazko lege bat egin beharra, eskumenen arazoa, instalazio igorle handiek CO2 biltegiratzeko obligaziorik ez izatea, eta Administrazio publikoei erantzukizuna transferitzearen erregulazioa. RESUMEN: Los retos juridicos de la gestion de los riesgos ambientales derivados del avance tecnologico no siempre encuentran una adecuada respuesta por el legislador. Una buena muestra de ello son las inconsistencias que presenta la regulacion del almacenamiento geologico del dioxido de carbono en nuestro pais llevada a cabo, fundamentalmente, por la Ley 40/2010, de 29 de diciembre, de almacenamiento geologico de dioxido de carbono. En este trabajo se analizan alguna de ellas como la necesidad de elaborar una ley especifica sobre la materia, la controvertida cuestion competencial, la ausencia de imposicion obligatoria del almacenamiento de CO2 a las grandes instalaciones emisoras y la regulacion de la transferencia de responsabilidad a las Administraciones publicas. ABSTRACT: The legal challenges of the enviromental risks management that derive from the technological progress do not always find a suitable answer in the legislator. A good example of it are the inconsistencies in the regulation of the geological storage of carbon dioxide in our country, specialy, by Act 40/2010 of December 29th of geological storage of carbon dioxide. In this work some of those are analyzed as for example the need to draft a specific act on the subject, the controversial issue of competences, the lack of a compulsory imposition to store CO2 to the large emitting facilities and the regulation of the transfer of liabilities to the public administrations.


Author(s):  
P MAUL ◽  
D SAVAGE ◽  
S BENBOW ◽  
R WALKE ◽  
R BRUIN

Author(s):  
A. Busch ◽  
P. Bertier ◽  
Y. Gensterblum ◽  
P. Giesting ◽  
S. Guggenheim ◽  
...  

Geofluids ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-21
Author(s):  
Zhaoxu Mi ◽  
Fugang Wang ◽  
Zhijie Yang ◽  
Xufeng Li ◽  
Yujie Diao ◽  
...  

CO2 geological storage in deep saline aquifers is an effective way to reduce CO2 emissions. The injection of CO2 inevitably causes a significant pressure increase in reservoirs. When there exist faults which cut through a deep reservoir and shallow aquifer system, there is a risk of the shallow aquifer being impacted by the changes in reservoir hydrodynamic fields. In this paper, a radial model and a 3D model are established by TOUGH2-ECO2N for the reservoir system in the CO2 geological storage demonstration site in the Junggar Basin to analyze the impact of the CO2 injection on the deep reservoir pressure field and the possible influence on the surrounding shallow groundwater sources. According to the results, the influence of CO2 injection on the reservoir pressure field in different periods and different numbers of well is analyzed. The result shows that the number of injection wells has a significant impact on the reservoir pressure field changes. The greater the number of injection wells is, the greater the pressure field changes. However, after the cessation of CO2 injection, the number of injection wells has little impact on the reservoir pressure recovery time. Under the geological conditions of the site and the constant injection pressure, although the CO2 injection has a significant influence on the pressure field in the deep reservoir, the impact on the shallow groundwater source area is minimal and can be neglected and the existing shallow groundwater sources are safe in the given project scenarios.


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