呼图壁储气库微地震监测系统设计及配套工艺研究
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摘要
为确保储气库长期安全平稳运行,对储气库内断层、盖层及井筒进行微地震实时监测。微地震监测对象主要为储气库密封性、内部温度压力、气液界面及流体运移等。通过微地震监测识别可能引起储层分区或流动通道的断层或大裂缝,掌握气藏内部变形机制、传导性裂缝和再活动断裂构造形态信息,以及流体流动的分布和压力前缘的移动状况,从而为储气库生产运行管理提供决策依据。本文详细阐述了微地震监测基本原理方法、呼图壁储气库微地震监测系统的设计思路以及现场实施的配套工艺技术。
micro-seismic Real time monitoring has been applied on faults,seal in gas storage and pitshaft in order to ensure the operation of undergrand gas storage safe on long-term basis.microseismic monitoring targets intended primarily for sealing,internal temperature and pressure for gas storage,gas-liquid interface and fluid migration,and so on.We can identify fault or fracture that possibly caused partitions in reservoirs or the flow channel through micro-seismic monitoring and master the information about internal deformation mechanism of gas reservoirs and conductive fractures and active fault shape,as well as fluid flow and pressure distribution of leading-edge mobile so as to provide basis to operation management of underground gas storage for decision making.The article expounded the basic principles of micro-seismic monitoring methods,and the design ofmicro-seismic monitoring system for Hutubi gas storage and matching technology for on-site implementation.
引文
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