分布式光纤声音传感技术在油田中的应用及发展前景

Applications and Development Prospect of Distributed Acoustic Sensing Technology in Oilfields

随着智能油田的建设和发展,对井筒和油藏生产动态监测的需求越来越高,实时、可靠的监测技术是保证油气井高效生产的基础,特别是在深水油气田开发过程中。基于分布式光纤声音传感技术的工作原理,结合国外在智能井、气举井、结蜡、水力压裂等方面的现场应用情况,分析了该技术在井筒实时监测方面的特点和优势,指出了其在数据处理、定量分析、标准声音数据库建设等方面亟待研究的问题。建议国内有必要在分布式光纤声音传感技术方面开展相关软硬件研究,以提高油田生产的实时决策和管理水平。

With the booming development of smart oilfield, the requirements of the monitoring of wells and reservoirs are becoming more and more urgent. Real-time and reliable downhole monitoring technologies are very important for improving oil and gas production efficiency, especially the production in offshore deep water oil and gas fields. Based on the working principle of distributed acoustic sensing （DAS） technology, the characteristics and advantages of DAS on wellbore monitoring are analyzed with field cases （such as smart well production monitoring, gas lift monitoring, wax deposition monitoring, and hydraulic fracturing monitoring）. Some issues, such as data processing, quantitative interpretation and standard acoustic database construction, are considered as big challenges in the application of DAS for wellbore monitoring. It is suggested that some research should be conducted on DAS technology to improve the capacity of real-time decision and management for oilfield production.