Prediction of Heavy-Oil Viscosities With a Simple Correlation Approach
Heavy-oil development is becoming increasingly important because of the continuous decline in conventional-oil production. For heavy-oil reservoirs, the oil viscosity usually varies dramatically during production processes such as in thermal processes. When producing heavy oil, the high viscosity is a major impediment to recovery. Oil viscosity is often correlated directly to the reserves estimate in heavy-oil formations and can determine the success or failure of a given enhanced-oil-recovery scheme. As a result, viscosity is an important parameter for performing numerical simulation and determining the economics of a project.
In this work, a simple-to-use correlation has been developed to correlate the viscosity of heavy oil to temperature and to a simple correlating parameter that can be used for heavy-oil characterization. The reported results are the product of the analysis of heavy- oil data collected from the open literature for various heavy-oil fields around the world. The tool developed in this study can be of immense practical value for petroleum engineers, providing a method for quick assessment of the viscosity of heavy oils. In particular, petroleum and production engineers would find the proposed correlation to be user-friendly, with transparent calculations involving no complex expressions.
The new proposed correlation shows consistently accurate results. This consistency could not be matched by any of the widely accepted existing correlations within the investigated range. For all conditions, the new correlation provided better results than existing correlations in the literature.
Mapping the Western Canadian Crude Oil Market Complex
Canada will become the world’s fifth-largest producer of crude oil in 2017. The solvent-assisted-SAGD poses the largest advancement in production techniques in the oil sands, and if scaled up, could further reduce extraction costs.
Performance Testing of an Inline Electrocoalescer Device With Medium and Heavy Crudes
To support subsea processing of heavy crudes, an inline electrocoalescer was tested for separation of water droplets dispersed in the crude oil.
Results of the Field Operation of a Distributed-Flux Burner in a Heater Treater in a Northern Canada Heavy Oil Field: Thermal Performance and Firetube Life
This paper presents data from both pilot tests and field tests of a recent burner retrofit of a horizontal heater treater at an oil sands field in northern Canada.
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01 August 2018