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ISSN Печать: 1940-2503
ISSN Онлайн: 1940-2554
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A MODEL TO CALCULATE HEAT LOSS OF FLOWING SUPERHEATED STEAM IN PIPE OR WELLBORE
Краткое описание
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 high-accuracy 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.
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Sun Fengrui, Yao Yuedong, Li Guozhen, Li Xiangfang, Chen Mingqiang, Chen Gang, Zhang Tao, Analysis of superheated steam performance in offshore concentric dual-tubing wells, Journal of Petroleum Science and Engineering, 166, 2018. Crossref
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Sun Fengrui, Yao Yuedong, Li Guozhen, Li Xiangfang, Zhang Tao, Lu Chengang, Liu Wenyuan, An improved two-phase model for saturated steam flow in multi-point injection horizontal wells under steady-state injection condition, Journal of Petroleum Science and Engineering, 167, 2018. Crossref
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Feng Naichao, Cheng Shiqing, Yu Haiyang, Shi Wenyang, Liu Xin, Liu Qicheng, The flow and heat transfer characteristics of compressed air in high-pressure air injection wells, Arabian Journal of Geosciences, 11, 17, 2018. Crossref
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Sun Fengrui, Yao Yuedong, Li Xiangfang, Li Guozhen, Liu Qing, Han Song, Zhou Yunjian, Effect of friction work on key parameters of steam at different state in toe-point injection horizontal wellbores, Journal of Petroleum Science and Engineering, 164, 2018. Crossref
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Kruczek Tadeusz, Analysis of the Influence of Transient State of the Overhead Pipeline Placed in an Open-Air Space on the Accuracy of its Insulation Assessment Based on the Results of Outer Shell Thermovision Diagnostics, Journal of Energy Resources Technology, 142, 2, 2020. Crossref
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Wang Luting, Pang Zhanxi, Jin Yijie, Liu Dong, Thermodynamic Characteristics of cold and hot non-condensable gases simultaneously flowing along vertical wellbore, Journal of Petroleum Science and Engineering, 208, 2022. Crossref