基于多介质通信的井下电视技术研究

Research on Downhole TV Technology Based on Multi-media Communication

油水井因套管变形、破损造成油水井故障而停产,由此产生大量井下维修作业增加了企业运行成本。针对浅层油水井作业的需要,提出了基于光纤、无线WIFI等多介质通信的井下电视技术,以可见光视频勘察方式确定油水井落物及套管变形、破损情况,协助制定合理的作业措施。通过该井下电视系统可深入到人无法到达的油水井套管内进行视频勘察;复合式光缆连接视频前端与微型光纤收发器接收端光口、微型光纤收发器接收端电口和无线路由器连接,并与电池一起集成到绕线盘上,电池为系统提供电能,无线路由器提供WIFI网络可连接多台便携式计算机,为其提供视频访问通道。经过现场试验,证实了该井下电视技术的可行性和实用性,能够降低企业油水井运维成本,具有广阔的应用前景。

Oil and water wells are shut down due to casing deformation and damage,resulting in a large number of downhole maintenance operations and thus increase in the operating costs of the enterprise.In response to the needs of shallow oil and water well operations,a downhole television technology based on multi-media communication such as optical fiber and wireless WIFI has been proposed to determine the falling objects and casing deformation and damage in oil and water wells through visible light video survey,and assist in formulating reasonable operation measures.Through this downhole television system,video surveys can be conducted in oil and water well casings that are inaccessible to humans.The composite fiber optic cable connects the video front-end with the optical port of the microfiber optic transceiver receiving end,the electrical port of the microfiber optic transceiver receiving end is connected to the wireless router,and integrated with the battery on the winding reel.The battery provides power for the system,and the wireless router provides WIFI network to connect multiple portable computers,providing video access channels for portable computers.After on-site testing,the feasibility and practicality of the downhole television technology are confirmed,which can reduce the operation and maintenance costs of oil and water wells in enterprises,and has broad application prospects.