This article outlines the development of downhole monitoring and data transmission technology for separated zone water injection in China.According to the development stages,the principles,operation processes,adaptabi...This article outlines the development of downhole monitoring and data transmission technology for separated zone water injection in China.According to the development stages,the principles,operation processes,adaptability and application status of traditional downhole data acquisition method,cable communications and testing technology,cable-controlled downhole parameter real-time monitoring communication method and downhole wireless communication technology are introduced in detail.Problems and challenges of existing technologies in downhole monitoring and data transmission technology are pointed out.According to the production requirement,the future development direction of the downhole monitoring and data transmission technology for separated zone water injection is proposed.For the large number of wells adopting cable measuring and adjustment technology,the key is to realize the digitalization of downhole plug.For the key monitoring wells,cable-controlled communication technology needs to be improved,and downhole monitoring and data transmission technology based on composite coiled tubing needs to be developed to make the operation more convenient and reliable.For large-scale application in oil fields,downhole wireless communication technology should be developed to realize automation of measurement and adjustment.In line with ground mobile communication network,a digital communication network covering the control center,water distribution station and oil reservoir should be built quickly to provide technical support for the digitization of reservoir development.展开更多
回流缆防盗割监测是输电线路运维的重要内容,针对现有监测方法实时性差、误报率高等问题,提出一种基于电力线通信(Power Line Communication,PLC)技术的回流缆防盗割动态监测系统。该系统利用电力线载波通信技术实现监测数据的实时传输...回流缆防盗割监测是输电线路运维的重要内容,针对现有监测方法实时性差、误报率高等问题,提出一种基于电力线通信(Power Line Communication,PLC)技术的回流缆防盗割动态监测系统。该系统利用电力线载波通信技术实现监测数据的实时传输,并利用光纤应变和振动传感器对回流缆状态进行多参数监测,通过多传感器数据融合提高盗割识别准确率。测试结果表明,该系统能够准确检测各类盗割行为,具有较高的实时性和可靠性。展开更多
基金Supported by the National Natural Science Foundation Science Center Project/Basic Science Center Project(72088101)PetroChina Scientific Research and Technology Development Project(2020B-4119,2021ZG12).
文摘This article outlines the development of downhole monitoring and data transmission technology for separated zone water injection in China.According to the development stages,the principles,operation processes,adaptability and application status of traditional downhole data acquisition method,cable communications and testing technology,cable-controlled downhole parameter real-time monitoring communication method and downhole wireless communication technology are introduced in detail.Problems and challenges of existing technologies in downhole monitoring and data transmission technology are pointed out.According to the production requirement,the future development direction of the downhole monitoring and data transmission technology for separated zone water injection is proposed.For the large number of wells adopting cable measuring and adjustment technology,the key is to realize the digitalization of downhole plug.For the key monitoring wells,cable-controlled communication technology needs to be improved,and downhole monitoring and data transmission technology based on composite coiled tubing needs to be developed to make the operation more convenient and reliable.For large-scale application in oil fields,downhole wireless communication technology should be developed to realize automation of measurement and adjustment.In line with ground mobile communication network,a digital communication network covering the control center,water distribution station and oil reservoir should be built quickly to provide technical support for the digitization of reservoir development.
文摘回流缆防盗割监测是输电线路运维的重要内容,针对现有监测方法实时性差、误报率高等问题,提出一种基于电力线通信(Power Line Communication,PLC)技术的回流缆防盗割动态监测系统。该系统利用电力线载波通信技术实现监测数据的实时传输,并利用光纤应变和振动传感器对回流缆状态进行多参数监测,通过多传感器数据融合提高盗割识别准确率。测试结果表明,该系统能够准确检测各类盗割行为,具有较高的实时性和可靠性。
