Webb EB, Rensing PJ, Koh CA, Sloan ED, Sum AK, Liberatore MW. High pressure rheometer for in situ formation and characterization of methane hydrates.
THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012;
83:015106. [PMID:
22299985 DOI:
10.1063/1.3675889]
[Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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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