HPHT viscosities measurements of mixtures of methane/nitrogen and methane/carbon dioxide

Davani, E., Falcone, G. , Teodoriu, C. and McCain, W. D. (2013) HPHT viscosities measurements of mixtures of methane/nitrogen and methane/carbon dioxide. Journal of Natural Gas Science and Engineering, 12, pp. 43-55. (doi: 10.1016/j.jngse.2013.01.005)

Full text not currently available from Enlighten.

Abstract

Gas production worldwide has been steadily increasing over the past 15 years. This growing demand for natural gas is driving the EandP industry to look for new resources in previously unexplored and deeper areas, where High Pressure High Temperature (HPHT) reservoirs may be encountered. These are reservoirs that exhibit pressures greater than 10,000 psia and temperatures over 300 °F. Thus, more attention must be paid to gas properties at HPHT conditions. Among all gas properties, viscosity is seldom measured in the laboratory and typically estimated through correlations. At HPHT conditions, the reservoir fluids will typically be very lean gases (e.g. methane with some degree of impurity) and therefore the gas properties may differ from those at lower pressures and temperatures. Consequently, the accuracy of gas viscosity correlations that are not experimentally validated at HPHT conditions may be doubtful. A review of a large database of published viscosity data for pure methane and mixed hydrocarbons revealed that they are limited in terms of both experimental conditions and quantity, and in some cases their accuracy is unknown. New HPHT gas viscosity correlations were derived using a set of viscosities of pure methane (CH4), mixtures of methane/nitrogen (CH4/N2) and mixtures of methane/carbon dioxide (CH4/CO2) measured using an oscillating piston viscometer at HPHT conditions.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Falcone, Professor Gioia
Authors: Davani, E., Falcone, G., Teodoriu, C., and McCain, W. D.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Journal of Natural Gas Science and Engineering
Publisher:Elsevier
ISSN:1875-5100
ISSN (Online):2212-3865
Published Online:22 March 2013

University Staff: Request a correction | Enlighten Editors: Update this record