Document Detail


Detecting Supercritical CO2 in Brine at Sequestration Pressure with an Optical Fiber Sensor.
MedLine Citation:
PMID:  23153197     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Monitoring of sequestered carbon is essential to establishing the environmental safety and the efficacy of geological carbon sequestration. Sequestration in saline aquifers requires the detection of supercritical CO2 and CO2-saturated brine as distinct from the native reservoir brine. Here we demonstrate an all-optical approach to detect both supercritical CO2, and saturated brine under sequestration conditions. The method employs a long-period grating written on an optical fiber with a resonance wavelength that is sensitive to local refractive index within a pressure- and temperature-controlled apparatus at 40 °C and 1400 psi (9.65 MPa). The supercritical CO2 and brine are clearly distinguished by a wavelength shift of 1.149 nm (refractive index difference of 0.2371). The CO2-saturated brine is also detectable relative to brine, with a resonance wavelength shift of 0.192 nm (refractive index difference of 0.0396). Importantly, these findings indicate the potential for distributed, all-optical monitoring of CO2 sequestration in saline aquifers.
Authors:
Bo Bao; Luis Melo; Benjamin Davies; Hossein Fadaei; David Sinton; Peter Wild
Related Documents :
23005847 - Dripping faucet dynamics is determined by synchronization of drop oscillations and deta...
23396247 - Fabrication of three-dimensional electrical connections by means of directed actin self...
23089787 - Research on fbg-based longitudinal-acousto-optic modulator with fourier mode coupling m...
18925777 - Critical issues of current research on the dynamics leading to glass transition.
18354337 - Predicting clinical efficacy of photoangiolytic and cutting/ablating lasers using the c...
16241507 - Translationally invariant discrete kinks from one-dimensional maps.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-15
Journal Detail:
Title:  Environmental science & technology     Volume:  -     ISSN:  1520-5851     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Optimum contribution selection for conserved populations with historic migration.
Next Document:  Glutathionylation induced structural changes in oxy human hemoglobin analyzed by backbone amide hydr...