科研之友
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摘要
Aiming at the flowing of superheated steam in a horizontal pipe and vertical wellbore, an improved model of heat loss was established to calculate physical properties of superheated steam along a pipeline or wellbore. Based on the basic theory of mass conservation, momentum conservation, and energy conservation, the model comprehensively considered the physical properties of water at different states, the structure of the pipeline and wellbore, friction loss, and heat conduction and heat convection during flowing. The test data of the oilfield verified that the model could give highaccuracy results about temperature and pressure levels. The results showed that the optimum steam flow rate was 25–35 t/h for a surficial horizontal pipeline with inner diameter of 0.1 m and the optimum steam flow rate should be chosen 3.5–7.5 t/h for a vertical wellbore with inner diameter of 0.076 m.
- 出版日期2016
- 单位中国石油大学（华东）
