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Application of Optical Fiber Distributed Acoustic Monitoring Technology in SAGD Well

机译：光纤分布式声学监测技术在SAGD井中的应用

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摘要

Steam assisted gravity drainage technology has been widely used in the development of heavy oil and super heavy oil fields,and reasonable monitoring means can improve the production technology of SAGD well and improve the production efficiency.In addition to temperature and pressure and other commonly used monitoring techniques,micro seismic monitoring can provide important information for the development of steam cavity in SAGD well.In this paper,a distributed optical fiber acoustic monitoring technology based on double pulse differential modulation and demodulation technology is described,which can use the monitoring optical cable installed in the well to obtain the micro seismic data of the whole wellbore and provide important information for judging the working condition of the well.The field test is carried out systematically in the SAGD pilot demonstration area of Fengcheng Oilfield,and the feasibility of the system scheme is verified.
机译：蒸汽辅助重力排水技术已被广泛应用于重油和超重油田的开发，合理的监测手段可以提高SAGD的生产技术，提高生产效率。除了温度和压力等常用监测。 微地震监测的技术可以为SAGD的蒸汽腔开发提供重要信息。本文描述了一种基于双脉冲微分调制和解调技术的分布式光纤声学监控技术，可以使用安装的监控光缆 在井中获得整个井筒的微地震数据，并提供重要信息，以判断井的工作条件。现场测试在凤城油田的SAGD试点示范区进行了系统地进行，以及系统方案的可行性 经过验证。

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