1InstitutoSuperiorTécnico,Av Rovisco Pais, 1049-001 Lisboa...
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1Instituto Superior Técnico, Av Rovisco Pais, 1049-001 Lisboa, Portugal2Universidade Fernando Pessoa - CIAGEB, Praça de 9 de Abril 349, 4249-004 Porto, Portugal3Academia das Ciências de Lisboa, Rua da Academia das Ciências 19, 1249-122 Lisboa, Portugal
3rd Symposium on Gondwana Coals, Porto Alegre, Brazil 16-18 Sept 2009
European Patent EP 1 801 346 A1
“Process for Carbon Dioxide Sequestration
by Injection in Coal Seams”
Application filed on 21st December 2006; Published 27/06/2007 Bull 2007/26 (with priority to
21/12/2005, referring to Portuguese Patent PT 10340605 of 21st December 2005).
Inventors:
A. Mouraz Miranda (IST)
C.F. Rodrigues (UFP)
M.J. Lemos de Sousa (UFP)
Acronym: SEQCO2
3rd Symposium on Gondwana Coals, Porto Alegre, Brazil 16-18 Sept 2009
The invention corresponds to geologic and mining engineering
domain and consists of a
.
3rd Symposium on Gondwana Coals, Porto Alegre, Brazil 16-18 Sept 2009
► to
, therefore contributing
to reduce the greenhouse effect in the atmosphere, and
► depending of the needs,
.
3rd Symposium on Gondwana Coals, Porto Alegre, Brazil 16-18 Sept 2009
The allows:
► to inject and diffuse CO2 and other gases,
, in coal seams in which the gases
will be stored by adsorption
► to produce from the same seams energetic natural
gas
3rd Symposium on Gondwana Coals, Porto Alegre, Brazil 16-18 Sept 2009
Boreholes will be
and will be drilled as to maximize the
contact surface (specific free surface) between the CO2 and the
coal, taking into account:
► local geological characteristics and the underground
geometry/setting of coal seams
► coal cleat orientation and connectivity
3rd Symposium on Gondwana Coals, Porto Alegre, Brazil 16-18 Sept 2009
Cased Zone
Screen Zone
Christmas Tree
3rd Symposium on Gondwana Coals, Porto Alegre, Brazil 16-18 Sept 2009
Boreholes for
, and will also have and placed in the
zone of coal seam
Boreholes will also be provided with appropriate for
3rd Symposium on Gondwana Coals, Porto Alegre, Brazil 16-18 Sept 2009
perpendicular or horizontal
to the seam plan orientation
3rd Symposium on Gondwana Coals, Porto Alegre, Brazil 16-18 Sept 2009
Shrinking effects will occur depending of coal characteristics
3rd Symposium on Gondwana Coals, Porto Alegre, Brazil 16-18 Sept 2009
Swelling effects will occur depending of coal characteristics
3rd Symposium on Gondwana Coals, Porto Alegre, Brazil 16-18 Sept 2009
“Methods for injection of acid
compounds in an underground
reservoir”
“Process for Carbon dioxide
sequestration by injection in
coal seams”
3rd Symposium on Gondwana Coals, Porto Alegre, Brazil 16-18 Sept 2009