Distributed Fibre Optic Temperature Sensing: A New Tool for Long-Term and Short-Term Temperature Monitoring in Boreholes
作者:
ECKART HURTIG,
STEPHAN GROSSWIG,
KATRIN KÜHN,
期刊:
Energy Sources
(Taylor Available online 1997)
卷期:
Volume 19,
issue 1
页码: 55-62
ISSN:0090-8312
年代: 1997
DOI:10.1080/00908319708908832
出版商: Taylor & Francis Group
关键词: distributed fibre optic temperature sensing;downhole temperature logging;fluid-logging;reinjection
数据来源: Taylor
摘要:
The distributed fibre optic temperature sensing technique represents a new physical approach for temperature measurements in geosciences. This method was applied for long-term surveying of temperature variations with time caused by injecting and extracting hot water in a 600-m-deep well. The measuring system was installed as a permanent sensor in the annulus between casing and tubings. The injection/ extraction regime was monitored by repeating the measurements euery few weeks. Short-term variations of the temperature during injection and extraction were studied by recording the temperature profile every 1 min over a time period of several hours. Testing shows that the fibre optic temperature sensing technique opens new possibilities for measuring the actual temperature along the entire length of a borehole as welt as for monitoring short-term and long-term temperature variations.
点击下载:
PDF (132KB)
返 回