电加热杆抽油井温度分布计算

Calculation of temperature distribution of electrical heating rod in pumping well

宋时权 张公社 李晶晶 于洋洋

长江大学石油工程学院，湖北 荆州 434023

School of PetroleumEngineering,Yangtze University, Jingzhou 434023, China

随着油田开发的深入，一些高黏度、高凝固点、高含蜡原油的开采比例越来越大。为了经济高效地开发这些油藏，针对稠油流动性差、温度敏感性高的特点，采用电加热抽油杆开采技术配合其他工艺能较好地适应稠油油藏的开发。温度是影响黏度的主要原因，而黏度是评价稠油特征的核心参数，因此，建立井筒温度分布至关重要。在介绍电加热抽油杆装置及加热原理的基础上，通过一个井筒温度场模型，计算了在电加热下的井筒温度分布。实例计算表明：电加热具有较好的加热效果。

Along with the penetration of field development, the exploitation proportions of high viscosity, high solidification point
and high waxy crude oil are bigger and bigger. For the sake of developing these reservoirs economically and efficiently, the
production technology of electrical heating oil extraction rod to coordinate with other technologies can be able to adapt the
development well of heavy oil reservoirs in view of the features of poor flowability and high temperature sensitivity of heavy
oil. The temperature is the main cause to affect the viscosity. The viscosity is the core parameter to appraise the
characteristics of heavy oil. Therefore it is very important to calculate the distribution of borehole temperature. Based on the
introduction of the devices of electrical heating rod and on the principles of heating, this article has calculated the
conventional borehole temperature distribution at electrical heating with a borehole temperature field model. The calculation
shows that the electrical heating has better heating effect.