Estimation of viscosities of naturally occurring petroleum gases provides the information
needed to accurately work out reservoir-engineering problems. Existing models for
viscosity prediction are limited by data, especially at high pressures and high
temperatures. Studies show that the predicted viscosities of natural gases using the
current correlation equations are about 15 % higher than the corresponding measured
viscosities at high pressures and high temperatures.
This project proposes to develop a viscosity prediction model for natural gases at high
pressures and high temperatures.
The project shows that commercial gas viscosity measurement devices currently
available suffer from a variety of problems and do not give reliable or repeatable results.
However, at the extremely high pressures encountered in high pressure and high
temperature reservoirs, the natural gases consist mainly of methane as the hydrocarbon
constituent and some non-hydrocarbon impurities. Available viscosity values of methane were used in the development of a correlation for predicting the viscosities of naturally
occurring petroleum gases at high pressures and high temperatures. In the absence of
measurements, this correlation can be used with some confidence.
| Identifer | oai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/5823 |
| Date | 17 September 2007 |
| Creators | Viswanathan, Anup |
| Contributors | McCain, William D. |
| Publisher | Texas A&M University |
| Source Sets | Texas A and M University |
| Language | en_US |
| Detected Language | English |
| Type | Book, Thesis, Electronic Thesis, text |
| Format | 1259241 bytes, electronic, application/pdf, born digital |
Page generated in 0.0022 seconds