摘要
文章介绍了用于注聚剖面测井的外流式电磁流量计权重函数解析式的推导和权重函数的仿真计算结果,在长筒型电磁流量计的条件下,创新性地推导出外流式电磁流量计权重函数的解析式,在权重函数解析式的基础上,利用数值分析方法对外流式电磁流量计和油管所构成的环形空间中权重函数的分布情况进行仿真计算。仿真结果表明权重函数在环形空间中呈规律性的对称分布。该研究为外流式电磁流量计的开发设计奠定了理论基础,对于外流式电磁流量计的应用以及提高注聚开发效果具有重要意义。
The analytic solution and simulation results of downhole electromagnetic flowmeter′s weight function in polymer injectivity profile logging are introduced in this paper. The analytic solution of downhole electromagnetic flowmeter′s weight function is innovatively deduced by the theory of long barrel electromagnetic flowmeter. Based on weight function′s analytic solution, the simulation study of weight function in annular space between downhole electromagnetic flowmeter and oil tube is conducted by means of data analysis method. The simulation results show that weight function is distributed regularly and symmetrically in annular space. The study lays theoretical foundation for designing the downhole electromagnetic flowmeter, has great significance for the application of the instrument, and enhances the development of the effect of polymer injection.
出处
《石油仪器》
2010年第1期12-14,3,共3页
Petroleum Instruments
关键词
注聚剖面
测井
电磁流量计
权重函数
仿真
polymer injectivity profile
logging
electromagnetic flowmeter
weight function
simulation
