去伴热保温油管的设计与应用研究

Design and Application Research on the Insulated Oil Pipe Without Heat Tracing

利用地层热量作为去伴热方法的高凝油开采新技术,即不使用热流与电伴热等方法,利用高凝油采出液从地层带出的热量来满足开采的条件,以达到节能降耗、降低高凝油开采成本的目的.为实现去伴热开采高凝油的目的,利用SiO_(2)纳米气凝胶毡保温油管,应用有限元分析软件ANSYS对保温油管的保温性能进行数值模拟研究,在辽河油田高升采油厂进行新型保温油管的中试验证.研究结果表明:39站与34站油井的出油温度分别提高36%与32%,这说明SiO_(2)气凝胶毡保温油管能够利用地层热量提高油井的出油温度;39站与34站运行电流下降明显,使用SiO_(2)纳米气凝胶毡保温油管达到了去伴热的目的,实现了油井的低成本开采.

The new technology of high solidification point crude oil was presented in this article.Instead of using heat flow and electric tracing method, the heat produced by high solidification point crude oil from the stratum was used to meet the mining conditions.The purpose is to save energy and reduce the exploitation cost of high solidification point crude oil.In order to realize the purpose of mining high solidification point crude oil without heat tracing, the insulating oil pipe SiO_(2)nano-aerogel felt was used.The thermal insulation performance of the insulating oil pipe was studied by using the finite element analysis ANSYS.The field tests of the new insulating oil pipe were conducted in Gaosheng oil extraction plant of Liaohe oilfield.The results show that the temperature of oil outlet of oil well in 39 station and 34 station is increased by 36% and 32%,respectively.The SiO_(2) nano-aerogel felt insulated oil pipe can take advantage of the heat of stratum to enhance the temperature of oil outlet on oil well.The working current of 39 station and 34 station are decreased distinctly.The use of SiO_(2) nano aerogel gel felt insulation oil pipe can achieve the purpose of heat tracing and realize the low-cost production of oil wells.