光纤传感技术在稠油热采中的应用

Application of Optical Fiber Sensing Technology in Thermal Recovery of the Heavy Crude Oil

光纤传感测试系统具有良好的温度性能,在不影响原始温度场、压力场分布,及不影响油田正常生产的情况下,实现实时多点温度、压力或连续的温度分布快速测量。尤其是光纤永久测量技术以其独特的安装方式,可以对水平井进行实时监测,解决以往水平井测量难的难题。从而实现直井、大斜度井、水平井的实时测试。本文主要介绍了光纤光栅传感技术、F-P腔传感技术、光纤分布测温技术,就其技术原理、构建方法及其在辽河油田的应用情况进行了综合评述。

Being with the perfect temperature performance, the optical sensing and testing system can realize the real--time multi--spot temperature and pressure measurement or the continual temperature distribution rapid survey without affect the primitive temperature and pressure fields distribution and without affect the oil field regular production. The horizontal well real--time monitoring can be realized by the optical fiber permanent measuring technique especially for its unique installment, which solute the difficulties in horizontal well logging in the past. Thus the vertical well, great ascent well and horizontal well can be measured at real time. This article mainly introduce the fiber grating sensing technology, the F --P cavity sensing technology, the optical fiber distributed temperature measurement technology . Its technical principle, construction method and application in Liaohe Oilfield are synthesis narrated.