High pressure rheometer for in situ formation and characterization of methane hydrates |
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Authors: | Webb Eric B Rensing Patrick J Koh Carolyn A Sloan E Dendy Sum Amadeu K Liberatore Matthew W |
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Affiliation: | Center for Hydrate Research, Chemical and Biological Engineering Department, Colorado School of Mines, Golden, Colorado 80401, USA. |
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Abstract: | We present a novel setup for a high pressure rheometer operating with concentric cylinders geometry for in situ studies of hydrate formation and rheological characterization. The apparatus uses an external high pressure mixing cell to saturate water-in-oil emulsions with methane gas. The capability of mixing combined with a true rheometer design make this apparatus unique in terms of setup and sample formation. We have used the apparatus to form gas hydrates in situ from water-in-oil emulsions and characterize suspension rheological properties such as yield stress and shear-thinning behavior. |
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