石油钻采工艺Issue(5)：84-89,6.DOI:10.13639/j.odpt.2014.05.020
油页岩原位加热电加热器温度分布模拟及优化设计
Simulation and design optimization of temperature distribution of in-situ heating electric heater for oil shale
摘要
Abstract
Electric heating is one of the ways to in-situ retorting oil shale, and electric heater is the key heating component. Through simulating temperature distribution of electric heater by PDE tool in MATLAB, this paper discusses the effect of heat conductivity coef-ifcient of the heater, heat source density, density, speciifc heat capacity, heater size, etc. on heater effectiveness and uses these parameters as the basis for design optimization of electric heaters. The research ifndings show that the materials with low density is helpful in im-proving heating efifciency of the heater;the heat conductivity coefifcient poses small effect on the temperature;the higher the speciifc heat capacity is, the lower the overall temperature of the heater is;with the increase of heat source density, the temperature of the heater is increased remarkably. Orthogonal experiment shows that heat source density, density and speciifc heat capacity have great effect on heater temperature distribution, while heat conductivity coefifcient has little effect;with the increase of heater radius, the temperature increases accordingly. The heater of design optimization takes the shape of U-tube and vacuum heating tube with axial symmetry, and the materials of heating components are copper and stainless steel, etc. Downhole in-situ electric heating can not only be used for develop-ment of oil shale, but be used as a technique for developing heavy oil.关键词
油页岩/原位开采/电加热器/温度分布/数值模拟/优化设计Key words
oil shale/in-situ retorting/electric heater/temperature distribution/numerical simulation/design optimization分类
能源科技引用本文复制引用
曾桂元,王存新,杨浩..油页岩原位加热电加热器温度分布模拟及优化设计[J].石油钻采工艺,2014,(5):84-89,6.基金项目
国家潜在油气资源（油页岩勘探开发利用）产学研用合作创新研究项目（编号OSR-04-07）。 （）
