J4 ›› 2011, Vol. 24 ›› Issue (2): 47-50.

• 目录 • 上一篇    下一篇

一种新型光纤油井井下压力传感器

 吕京生1, 郭士生2, 王昌1, 闫波2   

  1. 1.山东省光纤传感技术重点实验室,山东省科学院激光研究所,山东 济南 250014; 2.中国海洋石油总公司上海分公司,上海 200032
  • 收稿日期:2010-12-21 出版日期:2011-04-20 发布日期:2011-04-20
  • 通信作者: 吕京生(1980-),男,硕士,研究方向为光纤传感 E-mail:mmmsunnyboy@163.com

A new optical fiber pressure sensor for oil well application

 LV Jing-Sheng1, GUO Shi-Sheng2, WANG Chang1, YAN Bo2   

  1. 1.Shandong Provincial Key Laboratory of Optical Fiber Sensing Technology, Laser Institute, Shandong Academy of Sciences, Jinan 250014, China; 2.Shanghai Branch, China National Offshore Oil Corporation, Shanghai 200032, China
  • Received:2010-12-21 Online:2011-04-20 Published:2011-04-20

摘要:

        井下的温度和压力是直接影响石油采收率的重要因素。文中介绍了一种光纤光栅油井井下压力传感器,该传感器的量程大于50 MPa,长期工作温度为-20~170℃,测量精度达到0.5%FS,经增敏后光纤光栅的压力系数为41.92 pm/MPa。本传感器可对油井井下的温度及压力长时间实时在线远距离监测,另外还具有结构简单、测量精度高、易于组网、本质安全等优点。在中国海油天津实验井实现了成功测井,突破了国内油井井下压力传感器的实验室研究界限,对油田提高采收率具有重要的意义。

关键词: 测井, 光纤光栅, 传感器, 压力温度检测

Abstract:

       Temperature and pressure are two significant reasons directly affecting oil production rate. This paper presents a new Fiber Bragg Grating (FBG) based pressure sensor for oil well application.This sensor breaks through domestic laboratory limitations for the oil well application of a pressure sensor and is quite significant for the increase of oil production rate. Its performance parameters are measurement range of greater than 50 MPa, working temperature of -20~170℃, measurement accuracy of 0.5%FS, and pressure coefficient of up to 41.92 pm/MPa after encapsulation. This sensor has such positives as online, realtime and longterm detection for the temperature and pressure in an oil well, simple structure, high measurement accuracy, intrinsic safety and easy networking.It has been applied to the Tianjin experimental well of China National Offshore Oil Corporation (CNOOC).

Key words: well logging, fiber Bragg grating, sensor, pressure and temperature detection

中图分类号: 

  • TP212.4